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What Is A Thermal Envelope?

Written by Kevin on . Posted in Insulation. No Comments on What Is A Thermal Envelope?

When it comes to building a home that’s eco-efficient and comfortable to live in, building it right is about building it tight. 

What does that entail?

It means that the lived-in areas (spaces that you use energy in to heat or cool them) have to be clearly separated from those that aren’t. In other words, there must be a tightly sealed thermal envelope around the home, or else hot and cold air will quickly enter or exit the house. 

But what is a thermal envelope, exactly? Here’s what you need to know. 

The Thermal Envelope

Like other industries, the world of construction and HVAC have their terminology for concepts that insiders understand, but the general public may not. A thermal envelope is one of these terms. 

Put simply, every home has a thermal envelope. It’s the structure that separates the air inside your home from the air outside. The National Renewable Energy Laboratory describes a thermal envelope as “everything about the house that serves to shield the living space from the outdoors.” 

This includes things like: 

  • Windows
  • Floors
  • Exterior walls
  • Outer doors 
  • Insulation
  • Air/vapor retarders 
  • Weatherstripping
  • Caulking

In this way, a thermal envelope is more than just one thing. It can be easier to understand as an engineering and design concept. According to EchoTape: 

“At its simplest definition, the building envelope is the exterior or shell of a building that repels the elements. At its most complex definition, it’s an engineering system that meshes elements such as structural integrity, moisture control, temperature control, and air pressure boundaries into a single design strategy.”

Sometimes, the objects that help maintain the home’s seal are referred to as the heat flow control layer. A thermal envelope aims to form an environment that prevents drafts and heat transfer from a building’s interior to the exterior. 

In the winter, a house with a reliable thermal envelope prevents air leaks; in other words, it keeps warm air inside and cold outside. 

In the summer, it’s the opposite. 

To picture this, think of an older home. It tends to be drafty and hot in the summer and cold in the winter. Such houses likely have poor thermal envelopes, resulting in significant energy loss and heat change. Creating a thermal envelope can be done in any home. There are several different insulation types, and Attic Construction is here to help you find the best insulation for your home.

The Purpose of a Thermal Envelope 

A thermal envelope serves three distinct functions:

  1. Air control – Managing air movement within your living spaces is important for managing energy consumption, preventing condensation from accruing, ensuring that air quality is optimal, and making the space comfortable. This air control includes both movements through the home’s enclosure and the heat flow control layer. A drafty house, for instance, has poor air control. 
  2. Moisture control – Moisture can threaten the structure’s integrity and wreak havoc on the interior thanks to mold and other issues. Left unchecked, it can cause damage to the foundations of the home. As such, an envelope’s ability to control and minimize moisture is one of its most critical tasks, especially in hot-humid climates or those that experience snowy winters.  
  3. Thermal control – As the name suggests, a thermal envelope makes it easier to reach and then maintain your ideal temperature no matter the time of the year. If you’re feeling too hot in the summer or too cold in the winter, it may be time to look for ways to increase your building envelope’s efficacy. 

What Characteristics Impact a Home’s Thermal Efficiency? 

Three main elements impact a home’s thermal envelope’s efficiency from a high-level standpoint. They are:

  • Heat transfer
  • Phase shift
  • Water vapor diffusion

Heat Transfer

Heat transfer is the transition of thermal energy from a heated space to a cooler area. According to Low Energy Home, there are three means of heat transfer that need to be considered when planning to make a home energy efficient:

  1. Conduction – Transfer of heat through matter from a higher temperature region to a lower temperature region. 
  2. Convection – Transfer of heat occurring because of the movement of fluids and gases (e.g., air moving in a wall cavity).
  3. Radiation – Electromagnetic radiation emitted from the surface of an object (e.g., radiation emitted from an aluminum foil).

When it comes to building, two types of materials help prevent heat transfer: thermal insulators and radiant barriers. 

Phase Shift 

This determines the amount of time it takes for the highest temperature on your home’s external surface to make the inside of the home reach its highest temperature. Phase shifts are important to consider, particularly in summers to prevent your attic from overheating. 

The phase shift of building materials increases with the thickness of the object, with a target value of 12 hours or more. According to Science Direct, “phase change materials (PCMs) are regarded as a possible solution for reducing the energy consumption of buildings. By storing and releasing heat within a certain temperature range, it raises the building inertia and stabilizes indoor climate.” 

Not only will it keep temperatures down, but it will also keep costs down too.

Water Vapor Diffusion 

This is the process by which water vapor can move through permeable materials due to a variance in water vapor pressure. By applying the proper materials within your building—such as vapor barriers or vapor diffusion retarders—one side prevents water vapor from entering, and the other side ensures that water vapor is dried out.     

Why Does a Home’s Thermal Envelope Fail? 

Although it depends on the structure itself, there are a few primary reasons why thermal envelopes end up being leaky. These include: 

  • Heat bridges – These are places where the house’s support structure meets a part of the home’s heat flow control layer, such as a wall meeting a window or a door. When this happens, it creates the opportunity for gaps (i.e., heat bridges) to occur. These areas are weak spots in the home’s thermal envelope that are more susceptible to cold or hot air moving in or out. Even a well-sealed home will have to pay special attention to potential thermal bridges. 
  • Poor home design – Sometimes, the home’s architect uses materials or designs that aren’t ideal for living. They might use materials that are incompatible with other materials they interact with or aren’t resistant to water penetration or thermal movement. Generally speaking, older homes tend to have more flawed thermal envelope design.
  • Low-quality installation – The design is only as good as the people who build it. You may have a perfectly designed house, but faulty craftsmanship led to improper installation of the structure and its heat flow control layer. When this occurs, there’s a significant likelihood of heat bridges popping up throughout the home.   
  • Materials fail – Sometimes, the materials you use in the home simply fail to live up to the expected performance levels—whether through the fault of manufacturing, storage, handling, or installation.
  • Acts of Nature – Nature can mess up even the most perfectly finished thermal envelope. Winds, rain, snow, and extreme temperature fluctuations can wear the envelope away over time, slowly chipping away at the thermal envelope. This gradual deterioration can be prevented via routine inspections and then fixing small problems before they can evolve into larger ones.

Benefits of a Thermal Envelope 

Making sure that your home has a tightly sealed thermal envelope is important for several reasons, including: 

  • Heat and cold transfer – The most apparent reason it’s better to have a properly installed thermal envelope in your home is to ensure that the home’s temperature stays where you want it to be. If you run the A/C, the house will cool quickly and stay cool. If you run the heat, the house will heat up and remain warm.
  • Eco-efficiency – Heating and cooling processes can consume a significant amount of energy. When there are breaches in the envelope or heat bridges, it’s far too easy for air to escape or enter. If you want to do your part in helping waste less energy to keep the environment green, tightening your envelope could go a long way. 
  • Money saved – The more energy-efficient your home is, the less money you’ll need to spend on heating or cooling it. You can learn some ways to lower your power bill for a little upfront investment and can significantly decrease your lifetime utility bill. 
  • Indoor air quality – When a home is airtight, it becomes much harder for allergens and pollution to get into your home without first being filtered through your HVAC system. 

Attic Construction—Sealing Your Home’s Thermal Envelope 

If you want to save money and stay comfortable, your home’s thermal envelope must be in tip-top shape. Fortunately, there are easy ways to fortify your home and prevent unwanted thermal escape or entry. 

One of the easiest ways to do this is by isolating the attic from the exterior walls and conditioned spaces and ensuring that seals, ventilation, and insulation are properly installed.  

That’s something the experts at Attic Construction do regularly. As the #1 rated San Diego & Orange County attic company, we’re the professionals you can trust to make sure that your home’s thermal envelope is secure. 

Check out our attic insulation installation services and contact us today! 

Sources:

  1. NREL. Elements of an Energy-Efficient House. https://www.nrel.gov/docs/fy00osti/27835.pdf
  2. Echo Tape. Contractor’s Field Guide to The Building Envelope. https://www.echotape.com/blog/contractors-field-guide-building-envelope/
  3. Low Energy Home. Heat Transfer. https://sites.google.com/site/lowenergyhome/thermal-envelope/heat-transfer
  4. Science Direct. Phase change materials for building applications: A state-of-the-art review. https://www.sciencedirect.com/science/article/abs/pii/S0378778810001180

Best Insulation for Hot Climates

Written by Kevin on . Posted in Insulation. No Comments on Best Insulation for Hot Climates

If you’re a homeowner in a hot climate, you know there’s nothing more satisfying than the comfort of a cool, air conditioned house. You also know that this comes at a price—your energy bill. 

If you’re wondering how to keep your house cool, you can do so and save money on your utilities with the proper attic insulation. In this guide, we’ll discuss how attic insulation can help keep temperatures and electricity costs down, what you’ll need to know about finding the right insulation for your home, and the types of insulation for hot climates.

Let’s dive in.

How Attic Insulation Can Keep You Cool and Help You Save

By adding attic insulation, you can maximize your comfort by ensuring yourself a cool escape from the outside heat—but there are other benefits as well, including:

  • Helps your air conditioner work more effectively – Most homes in the U.S. are leaking energy. In fact, 9 out of 10 homes are under-insulated. When your home is under-insulated, your air conditioner has to work even harder to regulate your home’s temperature throughout the day. This means you end up spending more money on your electricity bills. 
  • Counteracts rising electricity costs –With U.S. residential electricity prices rising nearly 40% since 2004 (and continuing to rise), proper attic insulation can help keep utilities costs low.
  • Saves big on electricity – According to the Environmental Protection Agency, you can save an average of 11% on total energy costs just by adding attic insulation to your home.
  • Supports a healthy climate – On a larger scale, adding insulation to make your home more energy efficient helps lower greenhouse gas emissions. In fact, there are many federal, state, and local utility incentives that reward homeowners for implementing this type of energy efficient home improvement. 

Attic insulation is an effective way to save money and help your home stay comfortable in hot, dry climates. However, insulating an attic is not an easy task. 

In order to experience all the benefits of attic insulation, it’s crucial that the installation be done properly. Plus, because attic insulation for hot climates differs from attic insulation for cool climates, it’s important to know the correct type of insulation to use. 

So what type of insulation is best for hot climates? 

R-Value

To better understand what type of attic insulation is best for hot climates, you will help to learn about R-value.

R-value is the rating used to indicate the insulation material’s thermal resistance—in other words, the material’s ability to slow heat transfer. The best insulation for hot dry climates requires an R-value between R30 and R60, depending on your specific area. 

For example, in southern California, insulation with an R-value of R30 will provide optimum insulation for your attic without being overly costly or overly insulating. In fact, anything over R38 is not recommended in southern California. While you may gain some additional energy efficiency, the initial cost of investment for insulation over R38 may offset any savings on your energy bill. 

Type of Insulation

While the proper R-value is essential to your attic insulation’s effectiveness, it’s equally vital to use the best type of insulation material for your climate. There are several types of insulation material available, the most common being fiberglass, cellulose, spray foam, and mineral wool. 

Fiberglass Insulation

Fiberglass insulation is probably what comes to mind when you think of insulation—a fluffy, cotton candy-looking material. Far from fluffy, fiberglass is actually made of extremely delicate glass fibers composed of recycled material and sand. 

Fiberglass is the most common type of insulation used for residences because it is by far the best, particularly for hot climates. Here’s why:

  • Fire-retardant – Fiberglass insulation is fire-retardant, making it an ideal choice for homes in dry climates and areas prone to fire. 
  • Water-resistant – Fiberglass insulation is also water-resistant. In hot, humid climates, this is crucial in preventing moisture from building up in your walls. A buildup of moisture can lead to mold growth—a costly problem to fix and a serious health risk. 
  • Formaldehyde-free – Since 90% of fiberglass insulation on the market today is formaldehyde-free, fiberglass insulation is by far the safest choice to use within your home.
  • Does not settle – Retaining its R-value for years

Not only does adding fiberglass insulation to your home improve your home’s energy efficiency, it also improves the value of your home. A 2016 report in Remodeler Magazine listed adding fiberglass attic insulation as one of the top home investments to make because of its 117% return on investment through the increase in home value. 

Cellulose Insulation

While cellulose insulation is the second-most common type of insulation used in residences due to its budget-friendly price, there are considerable downsides to using it. 

  • Absorbency – The most negative aspect of cellulose is that it absorbs water and moisture from the air. In a hot, humid environment, more moisture in the air means more moisture absorbed into your insulation.
  • Durability – Because cellulose is made from recycled goods like newspaper and cardboard, it can begin to degrade as soon as 15 years after installation. In comparison, fiberglass insulation can last between 20 to 30 years in most homes. While cellulose costs less than fiberglass initially, you’ll end up paying more for it in the long run. 

Spray Foam

As its name suggests, spray foam is applied by being sprayed onto desired areas. While this substance may seem simple, there are a few significant factors to consider before choosing spray foam to insulate your attic:

  • Typically for industrial buildings  – Spray foam is typically used for industrial applications. In residential homes, spray foam can interfere with plumbing and wires in the attic.
  • Difficulty in application – The spray application method is actually quite difficult. This increases the likelihood of having gaps within your insulation or getting insulation on pipes and electrical work in your attic. If you choose spray foam for your attic, be sure to consult experts!
  • Safety concerns – According to the California Department of Toxic Substances Control, methylene diphenyl diisocyanate, the main ingredient used in spray foam, is known to damage lungs, cause asthma, and trigger asthma attacks. Once again, if spray foam is the right choice for your home, please talk to professionals. They’ll have the expertise and the gear needed to implement it correctly.

Radiant Barriers: Another Option in Insulation

If you’re living in a hot climate, another effective way to make your home more energy efficient, is to install radiant barriers in your attic. 

Unlike insulation, which slows the flow of heat, radiant barriers use highly reflective material (typically aluminum foil) to reduce the amount of radiant heat within your attic. 

When your roof heats up under direct sunlight, that heat transfers to your attic floor and other attic surfaces, including your insulation, ductwork, or HVAC equipment. Radiant barriers work by reflecting that heat back up toward the roof, making them ideal for hot climates. 

If you’re unsure whether radiant barriers are right for your home, considering the following questions:

  • Is your home in direct sunlight for most of the day?
  • Do you live in an area where temperatures can reach over 100 degrees Fahrenheit for weeks at a time?
  • Do you have ductwork or HVAC equipment installed in your attic? 

If you answered yes to any of these questions, radiant barriers might be the ideal option for reducing your home’s cooling costs. However, the effectiveness of radiant barriers relies largely on their proper installation, as they work best when placed perpendicular to the source of solar radiation. For this reason, it’s important to hire a professional to install your radiant barriers.

Professional Installation

Insulating your attic with the proper R-value and insulation material for a hot climate is one of the most cost effective ways to lower your power bill and keep your home cool. But just like radiant barriers, the effectiveness of your insulation is dependent on proper installation. The only way to guarantee that your attic insulation is installed properly is by hiring a professional to do the work. 

Professional insulation installers have been extensively trained to keep important factors in mind to ensure the best installation possible.

Eliminating Air Leaks

Professionals understand how to properly install insulation so that you get your money’s worth. They know how to seal air leaks and eliminate gaps between the insulation and your attic space to ensure two things:

  • Effective coverage
  • Energy efficiency

Eliminating air gaps is crucial not only in reaching the recommended R-value of your insulation, but also in preventing moisture from building up in your walls. When gaps are present, the cool moist air from your home can rise up and escape from these gaps, leading to condensation and mold growth. With professional installation, you can avoid this issue altogether.  

Under-installation, Over-installation, Proper Installation—The Goldilocks Effect 

A professional will also be able to accurately determine the amount of insulation you need. Overly insulating your attic can be just as detrimental to your energy efficiency as under insulating. Too much insulation in your attic can negatively affect your attic’s ventilation and air circulation. Without proper ventilation and circulation, your attic is at an increased risk of moisture buildup and mold growth. 

Safety

Another reason to hire a professional is to keep you safe. Attics can be dangerous. Tight attic spaces are culprits for injuries and falls. Attics can also be home to contaminants such as rodent infestations and mold. If you do have rodents or mold, removing any old insulation can release dried contaminants into the air, endangering your health. 

Professionals have the necessary equipment to keep themselves safe from injury. They also have tools, such as specialized vacuums and specialized bags, to remove any old insulation without spreading contaminants. A professional will also know how to safely dispose of any old insulation, as it cannot simply be thrown away. 

Trust Attic Construction for Your Attic Insulation

If you’re living in a hot climate, your attic insulation has a huge effect on the energy efficiency and comfort of your home. For even more energy efficiency, radiant barriers can be added to your attic to drive heat away from your insulation. By taking these steps to make your home more energy efficient, you will significantly reduce the amount of work your air conditioner needs to do, saving you money on your energy bills.

To guarantee that you’re getting the most out of your attic insulation, it’s essential to hire a professional to do the installation. Our team of professionals have the expertise and the tools to install your attic insulation properly, quickly, and safely. Our goal is to save you money, time, and hassle. 

With our help, you won’t have to wait long to start enjoying lower energy bills and relaxing in the comfort of your cool, air conditioned home. Reach out to an expert today.

Attic Construction offers San Diego, Orange County & Phoenix insulation installation; contact us for a free estimate.

Sources: 

  1. Energy Star. Why Seal and Insulate? https://www.energystar.gov/campaign/seal_insulate/why_seal_and_insulate
  2. Insulation Institute. Home Insulation: The Value of Insulating Your Home. https://insulationinstitute.org/im-a-homeowner/why-insulate/value-savings
  3. Energy Star. Recommended Home Insulation R-Values. https://www.energystar.gov/campaign/seal_insulate/identify_problems_you_want_fix/diy_checks_inspections/insulation_r_values
  4. Department of Energy. Insulation. https://www.energy.gov/energysaver/weatherize/insulation
  5. REenergizeCO. When to Replace Your Home Insulation. https://www.reenergizeco.com/replace-home-insulation/#:~:text=Unless%20damaged%2C%20it%20can%20last,or%20a%20home%20energy%20audit.
  6. Department of Energy. Radiant Barriers. https://www.energy.gov/energysaver/weatherize/insulation/radiant-barriers

 

How To Keep Your House Cool Without AC

Written by Kevin on . Posted in Insulation. No Comments on How To Keep Your House Cool Without AC

There are so many reasons to love the hot weather that comes along with summertime. Chances are, you will need to keep your house cool to feel comfortable. While air conditioning is a solution to rising temperatures, it can be costly. So, what are you to do if you want to stay AC free? 

Here’s how to keep your house cool, even when the weather heats up. 

Radiant Barriers and Proper Ventilation 

If you want to take your insulating efforts to the next level, try radiant barriers. 

A radiant barrier is a thin sheet of metal material that looks similar to a thicker aluminum foil. It’s often installed in attics, just beneath the roof joists. By placing the radiant barrier on the attic floor between the roofs material and insulation, a significant percentage of the heat radiating from the hot roof will be reflected back toward where it came from—not toward the insulation. Similarly, the cool air that is trying to escape your home will also be reflected back downwards.  

As you might imagine, this heat reflection can get extremely hot. This is why it’s critical to have proper ventilation throughout the attic space. Too much insulation can restrict airflow, which reduces the home’s natural ventilation capability.

Attic Insulation 

The insulation in your walls and attic can keep you warm during winter. But did you know that it also keeps you cool during the summer?

Some liken attic insulation to a thermos—either keeping a hot drink toasty or a cold drink chilly, depending on what you put in it. During the hot months, insulation prevents hot air from entering the house, particularly through the ceiling into the living spaces. According to NBC, “The way thermodynamics work is heat flows from a hotter place to a cooler place… not having insulation means heat is seeping into your house.”

When a room has no insulation or has insufficient insulation, it becomes far too easy for cold air to escape the house and hot air to enter. By sealing up those spaces, you can help the house stay cool from May to September. If you live in a hot climate, learn more about the best attic insulation for hot climates.

Install High-Efficiency Lighting 

Do you still use traditional 100-watt light bulbs in your home? 

You may not realize it, but those older bulbs can increase a room’s heat, especially in a small space. Due to their inefficiencies, a significant percentage of an incandescent bulb’s energy emits as heat. While the amount of heat produced varies according to several factors (bulb materials, bulb shape, wattage, and room airflow), even a single bulb can cause unwanted heat. According to Temperature Master: 

“A 420 square foot room with 10-foot ceilings has 145 kilograms of air. This means that it takes 145 kJ to heat the room 1 degree Celsius. With a 40-watt light bulb, it would take approximately 1 hour to heat the room 1 degree. Therefore, a 40-watt light bulb would heat a room 1 degree every hour (with perfect insulation).”

The answer to this problem is LED light bulbs. Thanks to their high efficiency, LED lights won’t make the room hotter since far less consumed energy is converted into heat. 

Close Your Blinds

Although you may be tempted to let the sunlight pour in so you can have natural lighting throughout the day, doing so will inevitably heat your home. This is particularly true on a scorching day. 

Consider keeping the windows shuttered until the afternoon. Thicker curtains, blackout curtains, or even thermal shades are fantastic at keeping the heat from penetrating your home. Give it a try. You may be surprised by what a dramatic difference it makes in your home’s temperature. 

Run Dehumidifiers 

Hot temperatures can cause discomfort, but heat combined with humidity can spoil a day. If you live in a humid area, consider strategically placing a few dehumidifiers throughout your home. These machines can draw water out of the air, so you don’t feel like you’re living in a sauna. 

Use the Ceiling Fan (Properly) 

Here’s a fun fact: ceiling fans can help your home cool down or warm up. You read that right; depending on the direction the fan is spinning (clockwise or counterclockwise), fans are designed to create an updraft or a downdraft. 

When you flip the switch on the side of the fan, it changes the direction it’s spinning. During the summer, you want the fan to rotate in a counter-clockwise direction. The direction and the angle of the blades force the air downwards, causing the air to circulate and cool the room. 

Attic Construction Can Help Cool Down Your Home

A scorching hot day at the beach is a blast. But when your home feels like the Sahara, it’s not nearly as much fun. Fortunately, there are several steps you can take to lower your home’s temperature without an AC. If you do need to use an AC, though, there are several ways to lower your power bill. 

Need help with that? 

At Attic Construction, we can insulate your attic, install radiant barriers, and confirm that there’s proper ventilation. Such small steps will ensure that your home’s temperature remains pleasant and your heating and cooling costs stay down when you are feeling that summer heat. When it comes to attics, we’re the experts residents trust, whether for attic insulation installation, removal, or decontamination. 

We provide free attic inspections with zero strings attached. So, if you want to make sure that your home stays hot in the winter and cool in the summer, reach out today! 

Sources:

  1. Temperature Master. Does a Light Bulb Make a Room Hotter? https://temperaturemaster.com/does-light-bulb-make-room-hotter/
  2. NBC. How to Keep Your House Cool Without Running Your Utility Bill. https://www.nbcnews.com/better/business/how-keep-your-house-cool-without-running-your-utility-bill-ncna887321

Breaking Down Attic Insulation Removal Cost

Written by Kevin on . Posted in Attic Insulation. No Comments on Breaking Down Attic Insulation Removal Cost

Older homes offer significant benefits—vintage architecture, affordable cost, and a rich history behind them. The one thing you may not love about your older home? The existing insulation.

Your home’s insulation is a vital aspect to proper temperature control and energy efficiency. If you’ve noticed that your attic space is particularly drafty in the cooler months, but feels like a sauna in the summer, it may be time to remove and replace the old insulation. 

While this can sound intimidating, it’s actually a very routine part of home ownership.

Before jumping into this project, you probably want a general idea of what the bill is going to run you. Continue reading for a full breakdown of attic insulation removal costs.

How Does Insulation Removal Work?

In order to determine a cost estimate, it’s important to understand what this process entails. Though every home is going to have a unique situation, most insulation removals will follow these four steps:

  • Preparation – Preparation is key to a successful removal and long-lasting replacement. The cost of your insulation removal is going to partially depend on how much prep work must be done before the job can even begin. The preparation procedures will correlate to how damaged or infested your current insulation is—since many older homes can have contamination and rodent infestations in these areas.
  • Removal – Depending on the type of insulation you’re dealing with, such as fiberglass batt insulation, foam insulation, or batt insulation, the removal process can vary. For contaminated blown-in insulation, a vacuum device is used to carry the material out of your home in a safe, contained manner. This may be cheaper than the removal of batt insulation, which is rolled up by hand and taken away. Your cost of removal will ultimately depend on
  • How much old attic insulation is currently in place
  • Levels of the contaminated insulation, mold and moisture
  • The amount of labor needed to get the job done
  • Replacement – Once your old insulation is removed, it will need to be replaced as soon as possible. Pricing of the replacement process will depend on several factors:
  • How much insulation is used
  • The R-value of the materials
  • Any rodent-proofing procedures needed
  • Decontamination measures
  • Clearing of debris from the area

The Bottom Line – The process of insulation removal can be complicated. Each step will have its own specifics that may affect the overall price. Time, tools, and level of contamination are the biggest factors to consider when determining cost. 

The Relationship Between Price and R-Value

Replacement is a big part of insulation removal, and typically you’ll want everything done at once to keep your home properly temperature controlled. This means that you’ll have to take the type of insulation and its R-value into consideration when estimating your final cost.

If you’re not an expert on attic insulation, you may be wondering what exactly is R-value. The answer isn’t too complicated. 

R-value is a unit used to measure insulation performance.

In the United States, different areas fall into R-value categories. Depending on the climate, each region is numbered 1-7 (1 being the warmest, 7 being the coldest). Once you know which category your home falls in, you can find the proper R-value needed to insulate your attic by using the chart below:

  • Zone 1 – R-value should be between R30 and R49.
  • Zone 2 – R-value should be between R30 and R60.
  • Zone 3 – R-value should be between R30 and R60 (California is in this zone).
  • Zone 4 – R-value should be between R38 and R60.
  • Zone 5 – R-value should be between R49 and R60.
  • Zone 6 – R-value should be between R49 and R60.
  • Zone 7 – R-value should be between R49 and R60.

Finding your specific R-value is where things get a little complicated. Every type of insulation is going to come with a different R-value per inch of insulation. 

With that in mind, the general metric used to determine R-value is: ft.°F. h/BTU. 

The Bottom Line – Not too complicated, right? All you really need to understand is this: the higher the R-value, the better the insulation (and subsequently, the higher the cost).

How Do Types of Insulation Differ in Cost?

When it comes to pricing, the type of insulation you go with is going to make a difference. For a  general idea, here’s the rundown on different forms of insulation, and how their costs coincide with quality.

  • Batt and roll – This type of insulation is typically going to work best for the standard home. Batt and roll insulation is usually made of fiberglass, which is a flexible, sturdy, and easy to install material. Fiberglass batts and rolls fit nicely in the beams of unfinished walls and floors, making them the perfect choice for attics. The cost for installing batt insulation is higher as it is more involved.
  • Blow-in or loose-fill – Blow-in or loose-fill insulation is commonly recommended for older homes. This is because old attics tend to have more obstructions and structural inconsistencies, which can make laying down batts and rolls difficult. Blow-in insulation requires specific machinery to fill in gaps, but is typically more affordable than batting insulation.
  • Cellulose – This type of insulation is typically cheaper, but there’s a reason why. Cellulose is made from shredded newspaper, making it particularly dusty and hard to work with. While regular cellulose insulation is cheap, a densely-packed installation is going to cost more. This method is often done because cellulose tends to settle after installation, causing it to lose its original thickness and leave your home more vulnerable to outside temperatures. Cellulose also cannot be turned into batts or rolls, making it a more complicated installation process.

The Bottom Line – Every insulation material has a unique pricing and R-value. Fiberglass batts and rolls are typically a good, cost-effective option, though older homes may require blow-in due to their structure. Cellulose can be a cheaper alternative, but it’s likely to deteriorate faster and leave a bigger mess.

What Is The Average Price For Attic Insulation Removal?

Keeping variables in mind, there are some general ranges you can expect the final bill to fall between. Pricing will typically be broken up into these four categories:

  • Square footage
  • R-value of new insulation
  • Type of materials and tools used
  • Labor (hours worked and employees needed)

Your attic insulation costs will most likely increase when labor and additional materials are tacked on, as well. Labor will typically cost a few hundred dollars, though the size of your attic and the number of workers needed can affect this number. 

The Bottom Line – It’s important to keep in mind that these numbers are averages. Each attic is different and has its own unique situation. Getting a consultation is the best way to determine what insulation removal is going to cost you, since every job will be slightly different. 

Attic Insulation Removal: The Main Takeaway

While averages can help you get an idea of cost, every insulation removal service is going to be different. Variables such as square footage, materials, and contamination can affect your total once the job is complete.

Removing old insulation may be pricey, but the benefits will save you money in the long run. Energy costs when heating and cooling your home will drop significantly if you have proper insulation, particularly in vulnerable areas like your attic. Old insulation can also pose health risks, due to rodent infestation and other contaminants that you may not be aware of. 

It’s always best to schedule an inspection prior to making changes to your insulation. A professional will be able to determine exactly what work needs to be done to ensure your home is safe, clean, and protected from the elements.

Attic Construction: Here For All Your Insulation Needs

Here at Attic Construction, consistency is key. Since 2013, we have provided the Orange County and San Diego areas with quality attic insulation installation services that are thorough, affordable, and professional. 

Whether you’re looking for insulation removal, rodent proofing, or attic clean out service we’re here to get the job done. From insulation removal in San Diego to insulation installation in Orange County…we have covered! 

Attic upkeep can be tricky, but hiring the right people is the best way to get the job done without breaking the bank. That’s where we come in.

Sources:

  1. Attic Construction. The Importance of Attic Insulation Removal. https://atticconstruction.com/blog/the-importance-of-attic-insulation-removal/ 
  2. Home Depot. All About Insulation R-values.  https://www.homedepot.com/c/ab/insulation-r-values/9ba683603be9fa5395fab9091a9131f 
  3. Thumbtack. How Much Does Attic Insulation Cost? https://www.thumbtack.com/p/attic-insulation-cost 
  4. Home Guide. 2021 Attic Insulation Cost. https://homeguide.com/costs/attic-insulation-cost 
  5. Fixr. How Much Does it Cost to Insulate a Modern Home? https://www.fixr.com/costs/home-insulation 
  6. Energy.gov Types of Insulation. https://www.energy.gov/energysaver/weatherize/insulation/types-insulation 
  7. Home Advisor. How much Does Blown-in Insulation Cost? https://www.homeadvisor.com/cost/insulation/install-blown-in-insulation/ 

Tips For Removing Attic Insulation By Hand

Written by Kevin on . Posted in Attic Insulation. No Comments on Tips For Removing Attic Insulation By Hand

Removing your attic’s old insulation is a task many homeowners face at some point. After a while, the materials used to insulate your home can begin to lose their effectiveness. From normal wear and tear, to more serious issues like vermin and contamination—a lot can go wrong in this vulnerable area of your home so you may want to consider attic insulation removal.

If you’re considering an insulation removal by hand, you have the option of doing the job yourself or hiring a trained professional. 

For the differences between these two methods (and everything else you should know about the process) continue reading for some helpful tips on removing attic insulation by hand!

Types of Insulation

Understanding the type of insulation material you have will determine whether or not removal by hand  is possible. Depending on its material and structure, your current insulation will most likely fall into one of these two categories:

  • Insulation that can be removed by hand – Batt and roll insulation—also known as insulation blankets—are strips of insulated material that are shaped to fit between the slats and boards of your home. This is the only type of insulation that can be removed by hand, due to its rigid structure.
  • Insulation that can’t be removed by hand – Some types of insulation that fall into this category include blown-in foam insulation, loose fill fiberglass insulation, and cellulose insulation. Due to the scattered structure of these insulation types, they cannot be efficiently disposed of by hand. Instead, an industrial hose is used to suck up these materials and leave a clean slate for new insulation to be installed.

Can You Remove Batt Insulation Yourself?

The short answer is yes—batts are typically the only type of insulation that homeowners can realistically remove themselves. With that being said, it’s still recommended that most people hire a professional to clear out any type of older insulation.

Why is this? There are a few different reasons that make professional services more beneficial than a DIY removal. Some of the biggest concerns include:

  • Safety – Removing insulation isn’t a risk-free job. Mold, vermin, and hazardous structures can all pose threats to homeowners attempting this task on their own. With a professional, you’ll have the comfort of knowing your home is in good hands. Plus, you won’t risk being exposed to a rodent infestation, unhealthy air quality, or falling through a loose floorboard (yikes!).
  • Better tools – When you remove batt insulation by hand, there’s usually some debris leftover. If your old insulation was contaminated by mold or pests, any remains can be potentially harmful if they aren’t taken care of. A professional removal company will have the tools needed to fully clean up the area—such as a professional vacuum, decontaminating chemicals, rodent-proofing methods and proper trash bags for removing your old attic insulation. 
  • Replacement – If you’re removing your old insulation, it likely was too old or wasn’t the best material for the space. Hiring a professional to remove your existing insulation will allow for a proper inspection of the situation, and give you the option to install a higher quality replacement.

How to Remove Insulation By Hand

Whether you’re determined to brave this task alone, or you’re considering professional help—you may be curious to know how insulation removal is done. 

Removing batt insulation by hand will commonly require a three step process:

  • Preparation – Before your removal can even begin, you’ll want to take some precautions within the attic space. Clear any furniture and other boxes from your attic. This will help create space and avoid any unnecessary damage or contamination of items.
  • Rolling – Batt insulation will typically be rolled up piece by piece and disposed of in secure bags. If you have contaminated insulation in any way, you’ll want to avoid any contact with your skin. Wearing a mask may also reduce the risk of toxic air entering your lungs.
  • Vacuuming – Any leftover debris can be vacuumed up at the end of the process. An industrial hose (similar to those used for blown-in insulation) will be brought in by professionals to ensure the area is completely clear at the end of the job. This step may be difficult for those removing their insulation themselves if they don’t have the proper equipment.

Get The Job Done Right with Attic Construction

While batt insulation can be removed by hand, that doesn’t make it any easy feat. Thoroughly clearing your attic of old insulation will be difficult without the right tools. You may also want some of the additional services a professional can offer you, like rodent proofing, decontaminating, and attic cleaning services. 

That’s where Attic Construction comes in. Our professional team is trained in everything insulation-related. Book your inspection with us today to get a free estimate on all the services you’re looking for!

Whether you are looking for San Diego, Orange County or Phoenix insulation removal, installation or rodent proofing, we are here to help.

Sources:

  1. Crawl Pros. A Fool-Proof Formula for Easy Attic Insulation Removal. https://crawlpros.com/a-fool-proof-formula-for-easy-attic-insulation-removal/
  2. Attic Construction. Why Hire a Professional for Insulation Removal. https://atticconstruction.com/blog/why-hire-a-professional-for-insulation-removal/ 
  3. Attic Construction. Insulation Removal. https://atticconstruction.com/locations/oc/insulation-removal/ 

Removing Blown In Insulation From Attic: How It Works

Written by Kevin on . Posted in Attic Insulation. No Comments on Removing Blown In Insulation From Attic: How It Works

So you’re looking to remove your old blown in insulation. This is a decision many homeowners make each year, particularly those living in older houses. Leaving old attic insulation in your home can lead to drafty winters, hot summers, and even pose safety risks in certain situations, and can even disturb the indoor air quality. Not many look forward to removing attic insulation, but it’s worth considering, especially if the current insulation has been there for a long time.

While batting insulation can be rolled up and taken away, blown in—also known as loose fill—insulation is a bit trickier to remove. The job can be done, however, as long as you have the proper equipment, a professional insulation removal team, and take all the necessary safety precautions.

If you’re interested in this process, but want to learn more about it, read on for everything you need to know about removing blown in insulation.

Why Remove Your Blown In Insulation?

Before you commit to a damaged insulation removal, you may be curious about the benefits that come along with this process.

When insulation is past its prime, its effectiveness and safety are significantly reduced. Some of the biggest reasons homeowners choose to remove their old attic insulation include:

  • Lower energy bills – When damaged insulation isn’t working to its full capacity, it can cost you a pretty penny in utility bills. This is because proper insulation makes heating and cooling your home much easier and more affordable. When there are gaps in your insulation, outdoor air is able to seep through the walls and affect the temperature inside. It’s no surprise that cranking the heat in the winter and air conditioner in the summer isn’t doing any favors for your wallet. That’s why paying for the removal of old insulation, and installing something more effective will ultimately save you money in the long run and provide better home efficiency.
  • Rodents – Old insulation can pose safety risks when pests are involved. Rodents often burrow into the insulation of older homes, particularly in areas with little traffic—like attics. Additionally, a few rodents can quickly turn into a rodent infestation. Removing infested insulation and replacing it with something more hygienic will prevent these pests from spreading disease and other germs throughout your home.
  • Contamination – In addition to rodents, it’s possible for other contaminants to live inside your insulation, as well. Some of the most common infestations found in blown in insulation are mold and mildew. Contaminated insulation can cause unhealthy indoor air quality throughout your home, and put you at higher risk of leaks and water damage.

Attic insulation removal cost can also be high but it might make a significant difference in your health and your home. The main idea – Removing blown in insulation has quite a few benefits. Ridding your home of worn–out or contaminated insulation can improve your energy bills, clear out pests, and improve air quality.

When Should Blown In Insulation Be Replaced?

Understanding when an attic insulation removal is necessary can be tricky. It’s important to know which key warning signs to look for when examining your insulation, such as:

  • Holes – If you’ve noticed bare spots where your blown in insulation is missing, this is a clear indicator that it needs to be removed and replaced. When your insulation has holes, outside air has a clear entryway to your home, leading to uncomfortable temperature shifts.
  • Moldy spots – When visible mold is growing on the surface of your insulation, it’s time to start fresh. Mold spots may be black, brown, or gray depending on the types of mold or fungi and the severity of the outbreak. Any color inconsistencies are generally a bad sign when it comes to insulation.
  • Droppings – The presence of rodent droppings around insulated areas will be one of the biggest indicators of a pest infestation. Chewed-up areas can also signal that vermin are living among the insulation. Knowing how to find rodent entry points is important to properly insulate those areas and prevent infestations.
  • Temperature – If your home is drafty, hot, or generally uneven in terms of temperature, this may be a sign that your insulation isn’t working properly. Certain parts of your home should not be warmer or cooler than others when insulation is distributed evenly.
  • Color – In addition to discolored spots, the overall hue of your insulation can suggest what condition it’s in. If the bright pink or white color of the material has become pale and dusty looking, this may mean it’s time for a replacement.
  • Leaks – Leaks or moisture in your ceiling can be a sign of damage to insulation, particularly in the attic.

The main idea – There will be many visible signs when your insulation needs replacing, such as dark spots, holes, and faded color. Leaks and temperature inconsistencies in your home may also be related to insulation issues. If you have a rodent problem, insulation is one of the most common places these pests like to hide, which may be another reason for insulation removal.

How Does Removing Blown In Insulation Work?

Now that you understand why you should remove your old blown in insulation, it’s time to learn how this removal is done. The process can be completed in three basic steps

  • Preparation – Preparing the area is crucial to a smooth removal job. These removals can be messy, and having the proper precautions in place will help to keep the rest of your home clean and sanitary when disposing of old insulation. Some preparation steps that your removers will take may include:
  • Laying down plastic sheeting
  • Moving furniture and other personal belongings out of the area
  • Setting up a secure vacuum outside of the home
  • Vacuum removal – Since blown in insulation cannot be removed by hand, a 23 horsepower vacuum is needed to dispose of the old materials. Once the vacuum is stationed in a safe place outside your home, a 6-inch diameter hose is attached and brought into the insulated space. From there, your technicians will begin vacuuming out all the old insulation, including any debris that scatters during the process. The old material will travel through the secure hose and be deposited into insulation removal bags, without tracking any contamination throughout the rest of your home. This process is secure, safe, and hygienic when done correctly by trained insulation professionals.
  • Replacement installation – Once the old insulation is removed, you’ll typically want a replacement installed shortly after. Along with new insulation, you also have the option to get your area rodent proofed and have any entry points sealed off. In terms of replacement, there are two main options for your new insulation:
  • Blown in – For older homes with obstructions and structural inconsistencies, new blown in insulation will typically be recommended for maximum coverage. Using fiberglass insulation will help your replacement last longer than other materials-like a cellulose insulation.
  • Batts and rolls – If your space is composed of relatively normal slats and boards, you may want to switch to batt and roll insulation instead Keep in mind that  installing batts and rolls tends to be more expensive and labor intensive. 

The main idea – Removing your old blown insulation is a three-step process. First the area must be prepped. A vacuum is then used to remove all the old insulation materials. Finally, you have the option to get new insulation installed.

Why Should You Get New Insulation Installed After Removal?

Just as old insulation can pose a threat to your home, having no insulation at all is equally risky. Though old insulation removal will eradicate any pest and mold infestations, temperature issues can only be resolved with the proper replacement of insulation materials.

With no insulation in your walls or attic space, you may run into problems such as:

  • Extreme temperatures indoors
  • Reduced value of your home
  • Increased noise pollution
  • Wasted energy usage 

Taking care of your home’s inner mechanisms is crucial to maintaining its equity, as well as your own personal comfort. Rather than waiting to get a replacement down the line, it’s best to have new insulation installed immediately after removal.

The main idea – Simply removing your old insulation is not a complete fix. Installing a new, high quality replacement will be a necessary next step to take after removal is complete.

Out With the Old, In With the New: Removing Blown In Insulation In a Nutshell

If you live in an older home, it may be time to remove your old blown in insulation material. A proper replacement will help lower utility bills, retain the value of your property, and keep you and your family comfortable all year round.

comfortable all year round.

When left untreated, contaminated insulation can also pose health risks, such as rodent infestations and mold outbreaks. If you suspect your home has fallen victim to either of these issues,  insulation removal should be scheduled as soon as possible. Rodent proofing and attic cleaning services can also be added to your replacement installation if desired. These services will help keep your home protected from these pests in the future.

hen it comes time to remove the old existing insulation, it’s best to get the help of an insulation removal service to ensure it’s being done properly and safely. The same goes for hiring an insulation service or professional for insulation installation. 

Attic Construction Has You and Your Attic Covered

Are you looking for reliable, professional, and affordable removal services? Look no further than Attic Construction for all your insulating needs.

Here at Attic Construction, we provide top rated attic insulation removal in the San Diego, Orange county & Phoenix areas. Our hardworking team of insulation professionals can provide everything from removals and installations, to attic clean out services. We even do rodent proofing and decontaminating your attic or crawl space. 

Stop living with insulation that’s older and less effective, and start taking care of your home by scheduling a insulation removal service today!

Sources:

  1. Attic Solution USA. How to Remove Blown In Insulation From Your Attic in 8 Easy steps. https://www.atticsolutionsusa.com/how-to-remove-blown-in-insulation-from-your-attic-in-8-easy-steps/
  2. Attic Construction. Why Hire a Professional for Insulation Removal. https://atticconstruction.com/blog/why-hire-a-professional-for-insulation-removal/ 
  3. Attic Construction. Insulation Removal. https://atticconstruction.com/locations/oc/insulation-removal/ 

How To Remove Batt Insulation

Written by Kevin on . Posted in Attic Insulation. No Comments on How To Remove Batt Insulation

Have you inspected the insulated areas of your home recently?

For those who live in older homes, you may want to consider taking a look at your attic or crawl space—or hiring a professional to do so. Insulation can only last so long, and after several decades it may become worn out, torn, or even contaminated. Removing old insulation is the best way to start fresh and improve the temperature and air quality within your home.

But how does it work? 

Some people choose to remove their old attic insulation themselves, but this can be a difficult process that may pose safety risks to those who are untrained. For more information about how a professional will perform this job, read on for everything you need to know about how to remove batt insulation.

What is Batt Insulation?

Depending on the type of insulation material you currently have, the removal process is going to look a bit different.

The most common form of insulation is called fiberglass batt insulation. Batt insulation is typically made from fiberglass or mineral wool. This material is cut into strips that fit perfectly between the slats and boards of standard homes, particularly in walls and attics.

Batt insulation is different from blown in insulation because it’s installed piece by piece. Blown in insulation will typically require an industrial hose to spray the material into more misshapen areas. The same logic is applied to each type of insulation’s removal process, as well.

How is Batt Insulation Removed?

The professional removal of batt insulation will typically require three steps:

  • Preparation – Be sure to prepare your attic space before insulation removal. All furniture and personal belongings must be stored elsewhere until the process is complete. Laying down plastic sheeting in and around the area is another step that will keep your home safe and clean while removing the insulation.
  • Hand removal – The next step is a very important and difficult labor task, which is removing batt insulation by rolling up each individual piece by hand. The blankets are then transported out of the home in secure disposal or garbage bags.
  • Vacuum – Finally, a vacuum is used to clear up any debris that was scattered during the removal process. This step must be thoroughly performed to ensure no leftover materials contaminate or compromise the new insulation once it’s installed.

Following the removal process, you’ll want to have new insulation installed as soon as possible. Without proper insulation, you run the risk of extreme temperatures, draftiness, and higher utility bills in your home. 

Why Should You Hire a Professional to Remove Your Insulation?

Although it’s possible to remove batt insulation yourself, there are benefits that come with hiring a professional to do the job. Insulation removal can be a difficult process, and opting to DIY this task will pose several risks:

  • Contamination – Older existing insulation may be contaminated with mold or mildew if moisture has found its way into the area. Safely disposing of this contaminated material can be tricky without the proper equipment. If you see discoloration on the surface of your insulation, it’s best to call a professional to remove it so you don’t risk breathing in anything dangerous.
  • Pests – Another health risk when removing old insulation is pests. Rodents often borrow into the insulation of older homes, and dealing with them should not be taken lately as it can quickly turn into a rodent infestation. Additionally, these vermin can potentially spread disease to you and your family. A professional removal company will have the proper rodent proofing materials to decontaminate the space and prevent any future infestations.
  • Risk of falling – Many attics lack the proper support needed to walk around freely. When you choose to remove insulation yourself, you run the risk of falling through crevices and getting hurt. A team of professionals will be able to set up a safe workplace and avoid any accidents while on the job.

Removing your own batt insulation comes with many risks. If you’re hiring professionals to install the new insulation, it may be the best choice to opt for removal services as well, as this will ensure the job is done correctly and safely. 

Professional removal will also be the best choice when it comes to contamination concerns, which can be difficult to handle without the proper know-how.

Leave Insulation Removal to the Pros at Attic Construction

If there’s one thing we know here at Attic Construction, it’s attic insulation removal.

Our team is trained in removal, installation, and even decontamination of insulated attics and crawl spaces. Serving the San Diego and Orange County areas, our services are highly rated, thorough, and always professional. Whether you’re looking for an insulation removal in San Diego or need a Phoenix insulation installation, Attic Construction can get the job done.

Don’t wait any longer to get rid of your worn out insulation. Book an insulation removal service and installation today with a professional insulation team—your attic will thank you for it!

Sources:

  1. Attic Construction. Insulation Removal. https://atticconstruction.com/locations/oc/insulation-removal/ 
  2. Devere Insulation. What is Batt Insulation? https://devereinsulation.com/what-is-batt-insulation/ 
  3. Home Guides. How to Remove Attic Insulation. https://homeguides.sfgate.com/remove-attic-insulation-38074.html 

Is There Too Much Insulation in Your Attic?

Written by Kevin on . Posted in Attic Insulation. No Comments on Is There Too Much Insulation in Your Attic?

Is There Too Much Insulation in Your Attic?

For many homeowners, ensuring their attic space is well-insulated is one of the most cost-effective ways to maximize their home’s energy efficiency. No matter what insulation type you use, proper attic insulation should have the optimal R-value based on your location and home requirements. Whether you use blanket insulation, fiberglass insulation, spray foam insulation, or cellulose insulation, the goal is to achieve the proper depth and ideal R-value for your attic space.

But can you over insulate your attic? Could your existing insulation be too much? While over-insulated attics aren’t as common as under-insulated attics, it is possible to put so much insulation in your attic that it has a negative impact.

To understand why this is the case, we’ll take a closer look at how your attic is supposed to function, why attic insulation is crucial for your home’s energy efficiency and comfort, and how much is too much insulation in your attic. 

How are Attics Supposed to Work?

Before diving into why over insulating is possible, it’s worthwhile to take a brief detour to learn how attics are supposed to work. This explains why over insulating can cause problems. There are two types of attic construction methods; vented and unvented. Understanding which you have has important implications for how and where you insulate.

Vented Attics

Vented attics are the most common type of attic construction. In a vented attic, insulation is placed along the ceiling plane of your home. This leaves the actual attic space above your home’s insulated areas, known as the conditioned space. 

As the name would suggest, vented attics have vents located around the eves of the roof. These vents allow the air in your attic to circulate with the outside air passively. This is important for two reasons. During the winter, those vents allow cold air from the outside to cool down the attic, which keeps the roof cool. If you have snow on your roof and the air in your attic is warm, the snow can melt off your roof and refreeze in your gutters, known as an ice dam.

During the summer, attic ventilation allows excess moisture to rise from your home’s interior and hot air in the attic to vent outside. This has the added benefit of protecting your roof shingles from damage. 

Sealed Attics

A sealed or unvented attic has the insulation installed at the roof rather than the ceiling plane, bringing the attic space into the home’s conditioned area. Unvented attics are less common than vented attics, but they do offer some advantages.

Sealed attics are considered more energy efficient than vented attics. This is partially due to the fact that air-conditioned ducting is brought into the conditioned space of your home, offsetting the energy loss that occurs from leaky ducts.

One thing to note about unvented or sealed attics is that they lack the protection against heat buildup for shingle roofs that vented attics offer. Because of this, some homes with sealed attics utilize a double roof that features a ventilated air space above the insulated roof decking.

Why Is Insulation Important?

Using the right amount of insulation can make your home feel more comfortable and can save you money on your energy bill. Insulation is important because it helps reduce the transfer of heat from the conditioned spaces of your home to the unconditioned outside. This means that your home’s warm air will escape more slowly when running a heater in cold weather. When you are running your air conditioning unit on a hot day in the summer months, your home will stay cooler longer.

The relationship between the transfer of heat and insulation can be found in an insulation’s R-value. The R-value is a rating used to note an insulation material’s thermal resistance, or how well that material resists the heat transfer, per inch of insulation material. Heat transfer is inevitable, but insulative materials slow the process down.

The effect of a well-insulated attic space is greater energy efficiency and comfort. A home with a poorly insulated attic will experience more significant fluctuations in temperature throughout the day. So, in a poorly insulated home on a hot day, the home’s conditioned spaces’ temperature will have a wider range than in a well-insulated home. Because of this, if you’re running your air conditioning, your air conditioner will have to work harder to keep your home’s conditioned areas the same temperature throughout the day. Not only is a well-insulated attic important, but also making sure your attic is safe and free of asbestos attic insulation. 

How Much Insulation is Too Much?

In Southern California, you’ll want to shoot for an R-Value of around 30 for an optimum experience. The California Department of Energy’s 2019 Building Envelope requirements state the minimum R-Value for wood-construction ventilated attic spaces in California is R-22. In contrast, the Environmental Protection Agency’s (EPA) Energy Start program recommends an R-Value between 25 – 38 for homes in Zone 3, encompassing most Southern California areas.

Achieving an R-Value of 30 should offer more than sufficient insulation in the Southern California area, without some of the downsides that come with too much insulation in the attic.

While achieving an R-Value of 30 is optimum, anything over an R-Value of 38 is probably excessive. Here are a couple of reasons why more insulation isn’t necessarily better:

Poor Return on Investment

Return on investment (ROI) is a concept often heard in business for determining the efficiency of an investment. In the context of insulation, determining your return on investment comes down to dividing the benefit it will provide you, namely your energy savings over time, by the cost of the initial investment.

Put simply, achieving an insulation R-Value over 38 in your attic, in Southern California, offers a poor ROI. What you may gain in efficiency is more than offset by the cost of investment into the additional insulation.

If you have attic insulation with an R-Value of 38 and still want to make your home more energy efficient, consider installing a radiant barrier instead. Radiant barriers are great because they block heat from your roof before it can ever reach your insulation. That means less heat will transfer into your home’s conditioned spaces, which will allow your air conditioning system to cool your home more efficiently. 

Poor Ventilation

Ventilated attics need to ventilate. If you’ve got four feet of insulation stacked throughout your attic, it could be impacting how efficiently your attic can circulate air. Ultimately, though, it really depends on the type of insulation material you have in your attic. If you are uncertain about what to do, you may want to look into a professional inspection and replacing attic insulation.

As we mentioned, air circulation is a crucial feature of ventilated attics. That passive air circulation occurs through the vents from your attic to the outside that are located underneath your eaves. 

Blocked vents in a vented attic will lead to poor energy efficiency, moisture buildup in your attic space, and most importantly, it will lead to mold. This is a big issue and may require hiring an attic insulation removal service  to prevent further damage and potential health concerns. 

Better Results Through Proper Installation

If you want the best result from your new attic insulation, focus your attention on how it is installed. Well-installed attic insulation with an R-Value of 30 will always perform better than poorly installed attic insulation with an R-Value of 38. 

Well-installed attic insulation will eliminate air gaps between the insulation and a structural component or between insulation pieces. An air leak can significantly impact your insulation’s performance and lead to moisture problems down the road. As warm, moist air rises from your home’s conditioned spaces, it will escape more easily through that area if an air gap exists. This will lead to the formation of condensation and eventually lead to moisture damage.

A well-insulated attic will have comprehensive coverage of your chosen insulation and be clean and dry. The use of a radiant barrier is also a great idea, as that will reduce the transfer of heat between the roof and insulation. 

Closing Thoughts

Can you over insulate your attic? The answer is yes! Past a certain point, insulation in a vented attic will do more harm than good. In most of the United States, achieving an R-Value of 38 is more than sufficient. In the temperate Southern California region, an R-Value of 30 tends to be ideal. 

Using more insulation than required doesn’t offer a significant advantage and can detrimentally affect how well your attic ventilates. If you’ve got well-installed attic insulation of a sufficient R-Value and still aren’t pleased with the results, you may want to consider installing a radiant barrier. Radiant barriers are a great way to maximize the benefit you realize from your attic insulation and improve your home’s energy efficiency.

Curious about whether your attic has too much insulation? Schedule an attic insulation assessment with Attic Construction! Our San Diego, OC, & Phoenix insulation installation professionals can assess the state of your attic and provide helpful recommendations that will boost your home’s energy efficiency and lower your utility payments. To learn more, contact us today!

Sources:

  1. “2019 Building Energy Efficiency Standards” https://www.energy.ca.gov/programs-and-topics/programs/building-energy-efficiency-standards/2019-building-energy-efficiency
  2. “Florida Solar Energy Center FAQ: Roofs and Attics https://www.fsec.ucf.edu/en/consumer/buildings/homes/faq.htm#roofs
  3. “Energy Management for Home” https://extension.tennessee.edu/publications/documents/sp759-o.pdf
  4. “How much insulation is too much in attics and walls?” https://www.ecohome.net/guides/3456/how-much-insulation-is-too-much-insulation-in-attics-walls-floors/

 

Replacing Attic Insulation 101

Written by Kevin on . Posted in Attic Insulation. No Comments on Replacing Attic Insulation 101

If you live in an older home or are experiencing some of the issues we’ll outline below, you may want to consider replacing your attic insulation. For homes with insufficient or damaged insulation, replacing attic insulation can restore energy efficiency and comfort.

Understanding the top signs that it’s time to replace your attic insulation, and what benefits new attic insulation can bring, is often helpful information for homeowners deciding whether this project is right for their home. From a house that is too drafty to energy bills that are steadily creeping higher, you’ll definitely want to keep an eye out for these top signs that attic insulation replacement may be needed.

#1. Rodents in Your Attic

Few things can be as destructive to an attic space as a rodent infestation. Rodents love attics because they’re protected from the elements making them warm and dry, sheltered from predators, and have lots of great nesting materials in the form of insulation or stored belongings.

If you suspect you have a rodent infestation in your attic, don’t wait to deal with it. The longer a rodent infestation is allowed to occur in an attic, the more pervasive and extensive the damage is. 

Signs of a rodent infestation in your attic include:

  • Odd smells coming from your attic space.
  • Scratching or scurrying sounds in your ceiling.
  • Pets paying close attention to your ceiling or walls.
  • Nesting materials in your attic (shredded cardboard, piled and disturbed insulation).
  • Rodent droppings in your attic.
  • Damaged insulation or belongings.

If you’re facing a rodent infestation in your attic, there are three basic steps to fixing it. These are:

  • Rodent proof your attic by sealing off any possible entrances. Be mindful that mice can enter a space as small as a dime.
  • Remediate any existing rodent damage. This includes removing contaminated insulation, disinfecting the attic space, and reinsulating.

If you do suspect you have a rodent infestation, you may want to leave it to the professionals to deal with. Great care must be taken when cleaning up after a rodent infestation, as rodent urine and feces can carry communicable diseases. This is also one of the primary reasons you want to address a rodent infestation when you suspect it, since rodents in your attic actually affect the air quality throughout your home. 

Approach a possible rodent infestation with caution, and be proactive if you find that you are dealing with one.

#2. Mold Growth

If you see mold growth on the insulation material in your attic or surrounding surfaces, such as the framing around the ceiling plane, you’ll definitely need to consider attic insulation removal and replacement.

Mold grows where moisture occurs. Without moisture, mold won’t grow. Mold growth on surfaces in your home is especially bad since it can impact the air quality throughout your home, as well as the durability of your home. 

The growth of mold in your attic is a sign of two things:

  • Your attic insulation needs to be replaced and any mold damage needs to be remediated.
  • The source of the moisture causing the mold needs to be tracked down and addressed.

Putting new insulation down won’t solve your moisture issues. After the old insulation is removed you may need to air seal your attic space. This helps with moisture issues because moisture in attic spaces often occurs in gaps between insulation. These small gaps allow moist, warm air from the conditioned spaces of your home to easily travel up through the air gap. As it moves upward and cools the moisture forms condensation, which builds up and over time will result in mold.

If you aren’t sure where the source of your moisture problems is, be sure to have your attic professionally inspected before putting down new insulation. Without addressing the root issue causing the moisture, you’ll just be back up in your attic dealing with more mold within a short period of time.

#3. Your Home is Old

If you have an old home and have never replaced your attic insulation, it may be time. Though most common types of attic insulation used today are rated for very long life spans, that’s assuming that it is kept in clean, dry conditions. Older homes also have older insulation types, which may not offer sufficient or adequate thermal resistance for your home’s needs.

If you do have an old home, it may be worthwhile to take a quick peek at what type of insulation you have in your attic. Visually inspecting your attic space can tell you a lot of things, such as how clean or dirty the space is, what physical condition your insulation is in, and even what type of insulation you have.

Pay very close attention to whether you have vermiculite insulation. Vermiculite insulation appears like small pebbles, usually grey-brown or silver-gold in color. If you do see vermiculite insulation placed in between the ceiling joists, do not disturb it. Leave your attic space and contact a professional to have your attic inspected for asbestos.

While asbestos isn’t in most insulations, vermiculite insulation made with vermiculite mined in Libby, Montana may contain asbestos and should be treated as such. If you suspect your attic insulation contains asbestos, don’t try to remove it yourself. Limit access to the area and have the potentially contaminated insulation professionally inspected by someone trained and certified for working with asbestos attic insulation.

#4. Your Insulation is Dusty or Dirty

You may not realize it, but the quality of the air in your attic can have a big impact on the air quality throughout your home. Over time, vented attic spaces can get covered with a layer of dust and debris blown in from the outside. That dust will settle onto everything, including your insulation. 

While dust may seem like a pesky nuisance around your home, the dust accumulated in your attic can actually contain contaminants. Specifically, attic dust has been shown to contain environmental contaminants that can date back to when your home was built. Environmental contaminants may include heavy metals, which can be harmful for your health if inhaled. 

Your attic insulation can capture and retain those contaminants, even if you’ve made an effort to clean the rest of your attic. For older homes with dusty or dirty insulation, it’s probably time to consider thoroughly cleaning your attic and replacing the existing insulation. To minimize the health risks of doing so, we recommend having your dirty attic insulation removed and your attic space cleaned by professionals like our team at Attic Construction.

#5. Leaky or Water Damaged Roof

Every homeowner knows that a leaky roof can cause big problems, and needs to be addressed. What you may not realize is that if you have a leaky roof, you’ll probably also need to change your attic insulation. This is because water penetrating your leaky roofing could affect the attic insulation underneath it.

Wet attic insulation is a poor insulator. While some types of insulation, such as fiberglass batt insulation, retain more of their insulative properties when wet than others like cellulose insulation, it’s only a matter of time before your wet insulation becomes moldy insulation. Wet insulation can also transfer moisture to the adjacent framing and building materials, potentially spreading mold growth and deteriorating the integrity of your framing materials.

As a best practice, if you find a leak in your roof have the attic insulation in that area professionally inspected. If the leak has been occurring for some time without being caught, you’ll most likely need to replace the attic insulation and remediate any water damage that occurred.

#6. Insulation Was Moved or Compromised

Sometimes, insulation can be moved or compromised when repairing it, and may not be put back into place. As a result, you may have areas that are not sufficiently insulated. If you notice that the temperature inside your home fluctuates more than it should, it can be an indicator that your insulation was shifted or compromised. As a result, your HVAC system will have to work harder to heat or cool your home, which can impact your energy bills. 

 If your insulation is moved and there is a gap in the insulation, this is another opportunity for mold. Warm air flows to the gaps in insulation and when air is moving in and out of the house, water will condense and feed the mold. 

The Benefits of Professional Attic Insulation

If you suspect your attic insulation may need to be replaced, you should strongly consider having your attic insulation installation done by our professional team at Attic Construction.

Here’s why:

  • Professionals will do a better job installing your new installation, maximizing the cost-savings and comfort it will provide. Professionals understand if there’s too much insulation in your attic, how much insulation you need, how to install it, and how to eliminate air leaks to ensure your attic stays clean, dry, and well-insulated.
  • Professionals have the equipment necessary to ensure they can do the job quickly and safely. Traversing attics can be difficult, and it isn’t a job for everyone. If you do attempt it yourself, be sure to use appropriate safety equipment and safe processes.
  • Professionals understand that contaminants in your attic can spread throughout your home when disturbed. That’s why we use industry-accepted best-practices to ensure old insulation is safely removed without spreading any contaminants to your household.

If you’re considering replacing your attic insulation, now’s the time to call our crew at Attic Construction! We’d love to help you return your attic space to a clean, dry, and well-insulated state. Aren’t sure whether your attic insulation needs to be replaced? Not a problem! Schedule a professional attic inspection so that one of our experienced staff can make targeted recommendations on proper insulation that will boost your home’s energy efficiency.

Replacing your attic insulation is one of the best ways to improve your home’s energy efficiency and comfort levels. At attic construction, we offer our services with professional attic cleaning in Orange County, San Diego, and more in southern California. So if you are in Orange County searching for “insulation removal near me” or need insulation replacement in greater Phoenix, AZ, don’t hesitate to connect with u!

Sources:

  1. “DIY Insulation or Hire a Professional?” https://insulationinstitute.org/im-a-homeowner/installation/diy-insulation-vs-hiring-a-pro/
  2. “Attic Insulation Project” https://www.energystar.gov/campaign/seal_insulate/attic_insulation_project
  3. “Mike Holmes Reveals the Two Crucial Things Your Attic Should Have” https://www.hgtv.ca/mike-holmes/blog/mike-holmes-attic-house-checklist-1913414/

 

The Dangers of Asbestos Attic Insulation

Written by Kevin on . Posted in Attic Insulation. No Comments on The Dangers of Asbestos Attic Insulation

If you’ve heard of asbestos before, then you probably know that it should be avoided. Exposure to asbestos can lead to the development of primarily two types of cancers, and exposure of as little as a few days has been linked to cancer growth.

While avoiding asbestos exposure should be a top priority for everyone, most attic insulation doesn’t actually contain asbestos. Understanding what asbestos is, what types of insulation product contain asbestos, and what to do if you suspect your insulation material contains asbestos is important for all homeowners given the potential health risks of exposure.

What Is Asbestos?

Asbestos is the name given to a group of minerals that share fire and corrosion-resistant properties. These minerals include:

  • Chrysotile 
  • Amosite
  • Crocidolite
  • Tremolite
  • Anthophyllite
  • Actinolite

Asbestos containing materials inherit its corrosion and fire resistance, which is why they’ve seen use in applications ranging from shipbuilding and repair, construction, and the automotive industry. Examples of products containing asbestos include brake pads, floor tiles and sheeting, cement pipes, vinyl wall coverings, and roofing shingles. 

What are the Health Impacts of Asbestos Exposure?

Even limited exposure to asbestos has been linked to two types of cancer:

  • Cancer of the lung tissue
  • Mesothelioma

Mesothelioma is a type of cancer that affects the lining of the lungs and other organs. It is important to recognize that even very limited exposure to an asbestos material, including asbestos in insulation, can result in cancer growth years later. This is why it is so critical to avoid any exposure to asbestos containing material, even if you are only exposed briefly.

Does Insulation Contain Asbestos?

Some insulation products does. Specifically, some insulation containing the mineral vermiculite may contain asbestos. Vermiculite is a mineral that, when heated to very high temperatures, puffs up. The expanded form of vermiculite has uses in a variety of industries, including organic gardening. 

On its own, vermiculite isn’t harmful. However, between the years 1925 – 1990, a substantial portion of the world’s vermiculite originated from a mine in Libby, Montana. That mine also contained a deposit of asbestos, in which asbestos contaminated vermiculite products and other products that used vermiculite.

One of those products was a type of blown-in attic insulation. So, the easy rule of thumb is: if your attic contains vermiculite insulation, assume it has asbestos in it. While not all vermiculite attic insulation contains asbestos, much of it does, and the environmental health risks of exposure are so great that it is better to err on the side of caution.

To be clear though, other common types of insulation products do not contain asbestos. This includes fiberglass insulation and cellulose insulation, both of which are very common in residential homes.

Where Can Asbestos Be Located in Your Home?

Here are some of the most common places where you may find asbestos in your home:

  • HVAC Duct Insulation
  • Ductwork flexible fabric connections
  • Air duct boots
  • Electrical wire insulation
  • Pipe insulation
  • Floor tiles
  • Vermiculite insulation

Vermiculite attic insulation looks like small pebbles that are grey-brown or silver-gold in color. Vermiculite insulation will be installed in between the joists in your attic.

What to Do if You Suspect Asbestos Insulation

If you suspect you have asbestos-containing vermiculite insulation in your attic, the most important thing to do is not disturb it. Asbestos poses the most danger when it has been disturbed and enters the air, where the asbestos dust can be breathed into your lungs. 

If you suspect asbestos in insulation, leave your attic disturbing as little as possible. Keep in mind these basic rules to help limit exposure:

  • Don’t try to collect a sample of the insulation, touch it, or move it in any way. 
  • Don’t store items in an attic containing vermiculite insulation.
  • Don’t sweep, dust, or clean around vermiculite insulation.
  • Limit access to areas with vermiculite insulation, including for children.
  • Do not attempt to remove vermiculite insulation on your own.
  • Only have your insulation sampled or removed by trained and accredited asbestos professional.

Solutions for asbestos-contaminated insulation vary. Sometimes the best solution is to seal it up in-place since it poses little risk unless it is disturbed. If it has been heavily damaged, it may need to be removed. Asbestos removal is very tricky, so be sure to not attempt it on your own and consult with the professionals for replacing attic insulation and helping you understand if there is too much insulation in your attic.

Closing Thoughts

Asbestos is the name given to a group of minerals that all share similar properties. Asbestos particles are only found in insulation made from vermiculite that was mined in Libby, Montana. Though that mine was shut down in 1990, the legacy of the tainted vermiculite it produced persists in a variety of products we may come into contact with.

Even limited periods of exposure to asbestos can lead to the development of lung cancer or mesothelioma. Because of this, if you suspect your attic contains vermiculite insulation do not disturb it. Leave the attic and limit access to it until you can have your insulation run through asbestos testing by a trained and accredited asbestos expert.

Skip the “attic cleaning near me” search and instead give us a call if you have questions about your attic insulation or are concerned about asbestos in your attic, contact us at Attic Construction today!

Sources:

  1. “Asbestos: Overview” https://www.osha.gov/asbestos
  2. “Protect Your Family from Asbestos-Contaminated Vermiculite Insulation” https://www.epa.gov/asbestos/protect-your-family-asbestos-contaminated-vermiculite-insulation
  3. “Vermiculite” https://www.cdc.gov/niosh/topics/vermiculite/

 

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