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Is Attic Radiant Barrier Worth it?

Written by Kevin on . Posted in Attic Insulation, Barrier Insulation, Radiant Insulation. No Comments on Is Attic Radiant Barrier Worth it?

If you’ve spent time thinking about protecting your attic against the elements, you may have heard about “radiant barriers.” 

Many people are skeptical whether installing this reflective material is worth the cost. In some states, predatory contractors have been decried by government agencies for using misleading marketing about what radiant barriers can do.

So, is radiant barrier worth it? 

In San Diego and Orange County, absolutely. Radiant barriers work by reflecting the sun’s rays, making them ideal for bright, hot climates. When installed properly and in the right regional context, a radiant barrier will pay for itself…

Radiant Barriers Cut Down Cooling Costs

There’s no question that radiant barriers cut down on cooling costs during the hottest months. The Department of Energy has suggested that in sunny regions, installing radiant barriers reduces cooling costs by 5% to 10%. 

In the hottest areas, those energy savings can be even greater.

These energy savings benefits do not apply to the entirety of the United States, contributing to a discourse of whether radiant barriers are worth it. If you are debating this for yourself, consider these following questions:

  • Is my home in direct sunlight throughout most of the day?
  • Do I live in an area that reaches above 100°F for multiple weeks at a time?
  • Does my attic have ductwork or HVAC equipment installed in it?

If you’ve answered yes to any of these questions, there is a good chance that your home will benefit from radiant barriers.

Direct Sunlight

If my house is in direct sunlight, shouldn’t reflective radiant barrier material be on the outside of it? As it turns out, it doesn’t need to be. Radiant heat moves through the surface of your roof deck to heat up your attic, entering your home and spiking cooling costs. 

Radiant barriers block the heat from coming in. 

Sunlight is one of the silent means that heat enters your home. Anyone who has opened the door to a vehicle and watched heat pour out knows that thanks to sunlight, enclosed spaces like cars can become small furnaces in the dog days of summer.

If your home receives direct sunlight throughout the day, especially if you don’t have any trees shading your roof deck, you should consider radiant barrier installation for cost reductions.

Hot Climates

If you’re in a region where it’s hot for most of the year, radiant barriers will provide year-round cooling cost reductions. If you experienced the brunt of the polar vortex in 2019, you may be better off with other types of insulation that are more cost effective for your region.

Some contractors in the industry were recently criticized by the Division of Energy Resources for installing radiant barriers when they were not necessary. While both can be used together effectively, as attic insulation increases, the effectiveness of radiant barriers decreases.

Radiant barriers aren’t snake oil—they work in the regions where you need them. You don’t need to bring a winter coat on a trip to the beach, and you don’t need radiant barriers in regions of the United States with a cold climate.

Ductwork/HVAC Equipment

Some homes, especially older ones, have ductwork running through the attic space. If you live in a home like this, radiant barriers will be particularly valuable for lowering cooling costs in the hotter months.

Attics that are not protected against the heat are going to put extra strain on air conditioning in the summer. As the attic space heats up, the ductwork heats up alongside it, and the machines pushing out the cold air into your home have to work twice as hard to produce the same level of climate control in your home.

When HVAC ducts aren’t insulated, cool air can escape from them and the need for a machine to turn on and off increases. This causes wear and tear on these machines, necessitating more maintenance and less effectiveness over time.

How You Can Lower Costs Even Further With Radiant Barriers

If you’ve been wondering “does radiant barrier work?” the answer is yes—radiant barriers will reduce your heating costs in the hottest months. The degree to which that will benefit you is regionally dependent, but if you live in San Diego or Orange County, there is a high likelihood that installing radiant barriers will slice your cooling bill. 

Benefits include:

  • Cooling costs reduced by at least 5%-10%
  • HVAC systems get less wear and tear over time
  • Smaller or more energy-efficient cooling can supplement existing systems while providing the same (or better) air conditioning than before

But why stop saving there? Hiring experts like Attic Construction can help ensure you get it installed right the first time, with professionalism that can’t be beat.

Contact us today and receive a free attic inspection appointment to see if radiant barriers are right for you. Our customers will receive a $300 discount off all radiant barrier installation services.

Sources: 

  1. Energy.gov. Radiant Barriers. https://www.energy.gov/energysaver/weatherize/insulation/radiant-barriers
  2. Minnesota Commerce Department. Building Envelope. https://mn.gov/commerce/consumers/your-home/energy-info/efficiency/building-envelope.jsp
  3. Insulation Stop. Exterior HVAC Insulation. https://www.insulationstop.com/radiant-barrier-blog/hvac/

Radiant Barrier vs Insulation: What’s the Difference?

Written by Kevin on . Posted in Attic Insulation, Barrier Insulation, Radiant Insulation. No Comments on Radiant Barrier vs Insulation: What’s the Difference?

When we think about protecting our homes from the elements, our thoughts tend to go towards insulation against the cold. Anyone with a drafty window in the middle of winter can appreciate the value of a tightly sealed home. 

But did you know that there are ways you can also keep your house cooler in the summer?

Radiant barriers can be installed alongside insulation in the attic space, providing a heat shield that can lower cooling costs in the summer months. Today, you’ll learn about the benefits of radiant barriers and insulation, and how both can reduce heating and energy costs!

Radiant Barriers Are Not The Same As Insulation

When weatherizing a home, the primary objective is to make it as comfortable as possible throughout the four seasons. Aside from central heating and cooling, there are two different kinds of building materials commonly used to perform this task: insulation and radiant barriers.

While both perform the same function—keeping your home at a reasonable temperature—the ways this is done vary greatly between the two. 

This is because heat does not spread in a uniform way.

  • Insulation blocks conductive heat – Insulation is like a down coat for your home. By providing a thick layer of insulation material, heat is slowed down and penetrates through your walls more slowly. The higher the value of resistance, or R-value, the slower it enters your home.
  • Radiant barriers block radiant heat – Park your car outside for a few hours on a hot summer day, and you’ll return to a furnace. Radiant barriers bounce the rays of the sun back from where they came from, even when installed underneath roofing. Rather than slowing heat, they prevent it from entering your home. On average, radiant barriers reflect around 95% of radiant heat.

Radiant heat is the single greatest source of heat accumulation in a home, while conductivity causes the greatest amount of heat loss. Yet between the two, most homeowners opt for insulation rather than radiant barriers. 

Why is this the case?

On average, Americans spend more on their heating costs than they do on their cooling costs. This has a lot to do with regionality. Energy bills in the United States vary greatly from one end to the other, but residents of San Diego and Orange County are far more likely to have high air conditioning costs than a resident of North Dakota.

Radiant Barriers and Insulation Control Heat in Both Directions

While insulation is most commonly associated with winter and radiant barriers with the summer, it is incorrect to assume that they don’t function outside of their seasons.

After finishing a marathon, racers are often covered in a reflective surface or blanket. This isn’t to protect them from the heat, but to raise their core temperature. After extreme exercise, the body releases heat faster than it can retain it, which can lead to shock. This blanket reflects the heat back in.

Much in the same way, homes in the Midwest can cover the joists of their attic floor with reflective barriers to keep radiant heat from exiting through the roof during the cold winter months. This means radiant barriers serve a dual purpose—keeping the summers cool and the winters warm.

By slowing heat, insulation helps keep the air conditioning unit running less in the summer, but it will also keep heat trapped in your home longer without it. This is why in warmer climates, a mixture of both insulation and radiant barriers tends to produce the greatest value.

Radiant Barrier vs Insulation: Which Do I Need?

Deciding on whether you should install a radiant barrier or insulation is not a zero-sum game.

Radiant barriers aren’t required in colder states, and even in the hottest states aren’t found in every home. However, they provide significant benefits in terms of energy savings and comfort levels to those that do. Virtually all residents of California will benefit from installing radiant barriers in their attic space.

Insulation is recommended for all homes, although how much is needed varies from location to location. The Department of Energy has split the U.S. into seven zones as a guideline for how much insulation is necessary for your attic. The amount of insulation is referred to as an “R-value.” For Californians, it is recommended that they meet attic insulation levels of R-30.

Your home should meet the minimum insulation requirements to keep bills low. 

To determine whether you need an attic radiant barrier, ask yourselves these questions:

  • Am I paying too much for my electric bill in the summer?
  • Do the rooms directly beneath the attic tend to get hotter during the day?
  • Does my home receive direct sunlight throughout most of the year?

If you answered yes to any of these questions, an attic radiant barrier may be the solution to your cooling needs.

Radiant Barriers and Insulation Are Good For The Environment

Most homes in the United States have insulation, and many homes do not have radiant barriers. But over the past few years, this statistic has begun to change. As Americans are becoming more conscious of how their energy usage contributes to climate change, many have begun installing radiant barriers or better insulation to decrease their carbon footprint.

In 2009, air conditioning constituted around 6% of all residential energy usage. 

This adds up to about 100 million tons of carbon dioxide released into the atmosphere every year. Since then, that number has only gone up. Heating costs constitute an even greater percentage of energy spent, and both are largely fueled by burning coal.

Since these pronouncements, some homeowners have gone out of their way to make their homes as carbon efficient as possible. To this end, many start by looking at ways to decrease their heating and cooling costs. For those looking to save the environment, residents of colder states tend to install radiant barriers even though they do not produce the same cost savings.

The Bottom Line: the Value of Radiant Barriers and Insulation

While some people use radiant barriers and insulation to control the temperatures of their home for comfort, and others for environmental reasons, others are more concerned about the bottom line. How much money can you expect to save by installing radiant barriers or better insulation?

Besides your region, there are several factors that play into this. On average, radiant barriers have been shown to decrease cooling costs by around 10%. Homes with these features are likely to see the greatest savings after installing radiant barriers:

  • Ductwork/HVAC Equipment in Attic – Older homes are more likely to store air conditioning equipment in the attic. This is an energy efficiency nightmare. Because attics are typically the hottest parts of your home, your air conditioning units will have to work harder to keep your home cool, increasing energy expenditure and maintenance costs. Radiant barriers will dramatically decrease power consumption in these homes.
  • Unsuitable HVAC Units – As technology progresses, the tools we use can do more while spending less energy. Homes with radiant barriers use less energy on cooling, meaning that some homeowners are able to switch to smaller air conditioning units. These units break down less often and require less energy to provide the same cooling benefits.
  • No Trees Around Home – As mentioned before, homes that receive the most sunlight throughout the course of a year tend to be the hottest. A home without trees to provide shade will save more by installing radiant barriers.

All homes should meet the recommended R-value guidelines for insulation based on their region. Because heating bills tend to be higher than cooling costs, a poorly insulated home can siphon away your money even in hotter climates. 

Remember that insulation slows heat transfer—even in the summer months, insulation paired with air conditioning works in your favor.

Do Insulation and Radiant Barriers Become Less Effective Over Time?

Properly installed insulation tends to last anywhere around 80 to 100 years. Radiant barriers last even longer. While insulation material such as polystyrene and polyurethane tend to become slightly less efficient over time, the age of your insulation is probably not responsible for high costs (barring homes made before 1940). 

More than likely, your insulation was never sufficient in the first place.

Heating and cooling account for 50%-70% of any home’s energy bills. For homes ill-equipped for the elements, these costs can be even higher. While older homes are most often the culprits for unnecessary energy expenditure, most homes built today still do not meet the optimal requirements for insulation and radiant barrier protection.

Insulation and Radiant Barrier Installation Services

Without being an expert in the field, it can be difficult to know whether your home is as energy efficient as it could be. One easy way to know if you can be saving money is by entering your attic and surveying the area. If you have an HVAC unit without radiant barriers, or you can identify missing insulation coverage near the joists, you could be saving more money on your electric bill.

Unsure if radiant barrier or insulation installation is the right move for your attic? Attic Construction offers a free attic inspection and estimate with zero strings attached. We will survey your attic, remove old insulation, seal up your attic, and install new insulation or radiant barriers, all with a $300 discounted rate for San Diego residents.

Attic Construction is the #1 attic restoration company in San Diego, CA. Since 2011, we have prided ourselves on providing the best service in the industry. We also offer Orange County and Phoenix insulation installation, you can count on us for the best insulation service. Give us a call today!

Sources: 

Breaking Down the Radiant Barrier Application Process

Written by Kevin on . Posted in Barrier Insulation, Radiant Insulation. No Comments on Breaking Down the Radiant Barrier Application Process

A lot of work goes into installing radiant barriers in your attic space—it isn’t quite as easy as just rolling out a sheet of tinfoil and hoping your cooling costs go down. 

Radiant barriers work by deflecting the sun’s rays, rather than typical thermal insulation which absorbs heat. When installing radiant barriers, thought needs to be put into the way they’re positioned. 

 Radiant barrier application can be done in several different ways, each with benefits and drawbacks. Consider the shape of your attic, whether you are using your attic floor for storage, and the climate you are in. Let’s discuss. 

Applying Radiant Barriers to Your Attic

Before installing radiant barriers in your attic, you will need to measure and cut out each sheet to meet the dimensions of the crawl space you are looking to cover. Radiant barrier application is a multi-person project—if you are applying barriers to the rafters, each sheet to be pulled so they remain somewhat taut after stapling them to the rafters. 

They don’t need to be airtight, but shouldn’t sag in between rafters either.

Some room should remain between the lowest sheet and the floor, as well as the top of the attic. This is for ventilation purposes, something that must be considered during the installation process. Each sheet should overlap the other by about an inch for maximum coverage. 

Open vents must remain uncovered for maximum air flow, and cuts in the attic radiant barrier can be made around any obstructions like water pipes that prevent forming an even surface area.

That being said, there’s more to radiant barriers than installation—you’ll need a plan designed around the way you live. Roofing specialists have different strategies depending on the geographic region they operate out of. 

Decide on your strategy before you make the first cut.

The Three Methods of Radiant Barrier Application

There’s more than one way to install radiant barriers to your attic, but each comes with perks and drawbacks. There are three common methods of radiant barrier application:

  • Open-Ridge or Staple-Up Method
  • Over-Insulation or Over-Ceiling Method
  • Hybrid Method

The basic difference between these three methods is whether radiant barriers are stapled to the rafters of the attic or if they are laid out on top of the insulation material between the joists. 

The hybrid method incorporates both.

Choosing the method that is right for you begins with checking whether you have ductwork in the attic. These are most commonly found in older homes. If you live in a home like this, you will want to attach radiant barriers to the rafters. This will keep your air conditioning from working to the point of breaking during the hottest months.

Another factor to consider is whether you are using your attic for storage purposes. If you need that extra space for odds and ends, applying radiant barriers to the floors alone will not be an effective method of keeping your home cool, and will overheat whatever you’re keeping in the attic.

With these considerations in mind, let’s look in depth at these barrier application methods, and how they can cut cooling costs in your home.

#1 Open-Ridge Method

The open-ridge type of radiant barrier installation is a method of applying heavy duty radiant barriers between the rafters, forming a protective shield that keeps your attic area cooler during the hottest months.

For people that use their attics for storage, or have any kind of ductwork and HVAC systems installed, applying this method has been shown to be an effective means of returning value on your investment.

When installing radiant barriers, make sure to clean all surfaces of the attic before placing them adjacent to the undersides of the rafters. If dust is able to accumulate on the surfaces of radiant barriers, they tend to be less effective.

For people living in hot climates like San Diego and Orange County, an open-ridge method should be considered the bare minimum for any kind of radiant barrier installation. Radiant barriers are most effective when they reflect back the rays of heat at the angle they are hitting the roof, making this method suitable for that climate.

Takeaways from the Open-Ridge Method

Open-Ridge Insulation is ideal for those living in hot regions or those who have ductwork in their attics, and tends to be the go-to method of radiant barrier application. 

Installation may require expert help to reach high or hard-to-reach areas.

Pros:

  • Keeps attic open for storage purposes
  • Best in hot, sunny climates like San Diego and Orange County where reducing cooling costs is primary concern
  • For attics with ductwork and HVAC systems, produces greatest cost savings

Cons:

  • Installation is more difficult than Over-Insulation Method
  • Covers greater surface area than laying it down, increasing initial cost
  • Requires higher-end materials so radiant barriers can remain stapled up

Over-Insulation Method

The easiest way to install radiant barriers, the over-insulation method simply involves draping radiant barriers over the joists and any existing insulation between them. This is also called the over-ceiling method, as it covers the space directly above your ceilings below the attic.

Aside from easy installation, this method is popular in houses in the Midwest as it is able to keep radiant heat inside of the home during the winter (as well as repel it during the summer months).

So, given that this method is the least labor intensive and cheapest means of installing radiant barriers, shouldn’t you be using it? 

The simplicity of this method may be alluring, but comes with many drawbacks. 

For one, attic spaces with this type of radiant barrier can’t be used for storage. Rather than reducing the heat in your attic, it will become even hotter than before. If you have any sort of ductwork or HVAC systems, they will have to work even harder to cool down your home.

Because the floor of your attic will be covered by a shiny metallic material, navigating joists when walking in an unfinished attic will be challenging. The over-insulation method radiant barrier application is not recommended for the accident prone.

Takeaways from the Over-Insulation Method

Simple to install, the over-insulation method works well in climates that require both heating and cooling throughout the year. 

It is recommended for homeowners in variable climates, but requires dusting to maintain its reflective properties throughout the year, and leaves no room for storage.

Pros:

  • Easy installation
  • Least amount of radiant barrier material required to install
  • Reduces cooling costs in summer and heating costs in winter
  • Best in climates with seasonal weather patterns, such as the Midwest

Cons:

  • Attic space cannot be used for storage
  • You will not be able to see joists—unfinished attics may be perilous to walk around in
  • Accumulation of dust will require periodic cleaning of radiant barrier surfaces
  • Not recommended in attics with ductwork and HVAC systems

Hybrid Method

The hybrid method combines the best of both worlds, covering the whole surface of your attic while providing maximum cooling efficiency. 

This means the rafters, insulation, and joists will all be covered in radiant barrier material. It is gaining popularity among homeowners as the most effective method of attic radiant barrier installation.

The best attribute of the hybrid method is that you will ensure that your home is protected against the elements in all seasons, and your attic will keep down heating and cooling costs at maximum efficiency. 

No matter what the weather throws at you, your home will remain comfortable.

Although your floor will be covered in radiant barrier material, it can still be used for storage purposes, as the attic temperature will be regulated from all sides. Some of the issues that come with using the over-insulation method will remain, but it guarantees that cooling costs will stay at their lowest possible level.

Takeaways from the Hybrid Method

The most all-encompassing form of radiant barrier protection, the hybrid method works in all seasons and conditions. It is the gold standard of attic temperature control. 

If heating your home in the winter is never an issue, this method may be excessive, but in all other cases, you can’t go wrong with this method of cooling cost reduction.

Pros:

  • Maximizes cooling efficiency from radiant barriers
  • Lowers heating and cooling costs throughout every season
  • Allows ample room for storage
  • Perfect climate for ductwork and HVAC systems

Cons:

  • Most expensive and labor intensive
  • Requires highest square footage of radiant barrier material
  • Joists will be obscured, and ground area will require periodic dusting

Should I Install Radiant Barriers Myself, or Hire Experts?

You can install radiant barriers alone, but doing so requires a great deal of planning and expertise. 

Why not leave it to people who do it for a living?

Attic Construction has been providing residents in San Diego and the Orange County area with services like attic insulation, attic cleaning, rodent decontamination, and radiant barrier installation since 2017. We pride ourselves on our excellent service and competitive pricing.

Contact us today and receive a free attic inspection appointment to see if radiant barriers are right for you! Our customers will receive a $300 discount off all radiant barrier installation services.

Sources: 

  1. Oak Ridge National Laboratory. Radiant Barrier Installation. https://web.ornl.gov/sci/buildings/tools/radiant/rb4/
  2. Attic Foil. Best Install Method. https://atticfoil.com/index.php/installation/best-install-method/
  3. Innovative Insulation. Radiant Barrier Installation Methods. https://www.radiantbarrier.com/resources-articles-radiant-barrier-installation-methods/

Most Common Radiant Barrier Problems

Written by Kevin on . Posted in Barrier Insulation, Radiant Insulation. No Comments on Most Common Radiant Barrier Problems

A Radiant barrier is one of the best and most innovative ways to take control of the temperature in your home. Taking advantage of conduction, convection, and radiation, radiant barriers enable you to significantly reduce the transfer of heat both coming into and out of your house.

It’s such a powerful and useful technology, even NASA uses it on its spacecraft.

However, there are certain issues and complications that can arise with a radiant barrier. There are vulnerabilities inherent to the technology that can lead to issues over time. There are also certain problems that can arise from the environment or manner in which it’s installed.

Let’s take a look at what these problems are, along with solutions and preventative methods.

Problems Inherent to Radiant Barriers

Radiant barriers are on the cutting edge of insulation technology. However, there are still some potential fault lines inherent to them. As with any technology, there are important vulnerabilities that you need to be aware of.

Knowing the ways that radiant barriers can potentially go wrong is the best way to prevent any avoidable mishaps. It’s also the best way to treat and reverse corruption, when possible.

For any issues you’re experiencing, professional help is always the best answer. Nevertheless, it never hurts to know what issues to look for.

Dust Problems with Radiant Barriers

Simply put, the biggest possible problem with any kind of radiant barrier is dust.

To understand why dust creates issues for all kinds of radiant barriers, it’s important to understand how they work:

  • Radiation transfers heat directly outward from an energy source
  • That heat absorbs into any materials that it can penetrate
  • Reflective surfaces are impenetrable, so the heat bounces off
  • Contaminants like dust, however, remove this property of reflection
  • A surface coated in dust will absorb rather than repel heat

The effectiveness of radiant barriers depends entirely upon the reflective properties of the metals used. Anything that compromises reflectivity will ultimately compromise the overall utility of the barrier. So, dust accumulation will always negatively impact reflectivity.

To ensure that your radiant barrier is protected from its nemesis—dust—you need to have proper ventilation. Make sure that vents are unobstructed and air isn’t still.

Also, be sure to inspect your radiant barriers from time to time and spot-clean if necessary.

Radiant Barrier Moisture Problems

The other main issue that can impact the performance of any radiant barrier is moisture.

In colder weather, radiant barriers can sometimes develop condensation. This issue is most prevalent in climates where the temperature regularly falls below zero degrees Fahrenheit. However, it’s a potential issue anywhere that freezing temperatures are a possibility.

When radiant barriers develop moisture problems, they can impact the efficiency of heat repellency. In addition, unchecked moisture can drop down onto other surfaces in the attic, causing water damage and mold.

In order to prevent moisture issues, it’s imperative to use perforated radiant barriers. Also, regular inspection can help you identify and patch up moisture risks, like leaks from the ceiling.

Problems with Radiant Barrier Setup

Not every problem is related to the radiant barrier itself.

In addition to problems inherent to radiant barriers, there are also common issues that involve the environment and manner in which they’re installed. These issues can be the underlying causes for faulty radiant barriers, or they can be compounding effects that these barriers can have on your home. Whether cause or effect, they can be quite serious.

And, in either case, as with inherent vulnerabilities, it’s important to understand these potential issues to know what to do to prevent them or treat them as they arise.

Let’s discuss.

#1 Attic Ventilation Problems

Radiant barriers only work properly in an attic that’s ventilated properly.

Proper attic ventilation ensures that:

  • Reflected heat circulates
  • Dust can’t build up over time
  • Dangerous contaminants don’t develop

Without proper ventilation, a thermos effect will be created, and the radiant barrier can produce the opposite of its intended effect, increasing the temperature in your attic space.

In order for the reflected heat to dissipate, there needs to be air circulation that carries hot air around instead of letting it sit still. That still air is also a main factor in dust buildup. Proper attic insulation, ventilation, and radiant barrier installation can all be more effective together.

Note: As aforementioned, dust is the absolute biggest threat to your radiant barrier.

#2 Problems with Roof Temperature

Radiant barriers work by reflecting heat that would otherwise permeate into your home. In some cases, that heat can reflect back into your roof’s surface, increasing its temperature.

In many homes, radiant barrier application is done directly to the underside of a roof for an efficient and clean installation. However, it can lead to radiant barriers increasing the temperature of the roof. While roof temperature is not necessarily important, excessive heat can deteriorate the roof surface, decreasing its lifespan and creating other potential problems, like leaks.

Ventilation can resolve this issue.

Benefits of Proper Radiant Barrier Installation

Problems aside, a properly functioning radiant barrier offers incredible value. They’re a low-cost solution that complements the benefits of other home and attic insulation throughout your home.

By installing, you ensure two primary attic radiant barrier benefits:

  • Control over the temperature in your home
  • Savings in energy consumption

Radiant barriers are prone to certain issues, but no technology is immune to deterioration over time, user error, or environmental stresses. The benefits of radiant barriers far outweigh the potential costs that these issues can cause.

#1 Comfort Year – Round

Radiant barriers are designed to help you control the temperature in your home.

Their primary function is keeping heat from penetrating into your home and raising temperatures in your attic space. Without protection like radiant barriers, direct sunlight can heat up a space extremely quickly rather than using the reflective insulation to bounce off of.

Sunlight enters your home directly through transparent openings like windows. But it also enters your home indirectly through seemingly impermeable surfaces, like your roof and walls.

Heat is transferred in three main ways:

  • Conduction – Heat will travel from a hotter portion of a given material to a colder portion of it. When sunlight strikes the rooftop surface, it transfers inward.
  • Convection – As a gas or liquid substance heats up, it loses density and begins to rise. Thus, hot air in the home will rise upward toward the attic.
  • Radiation – As noted above, heat radiates directly outward from a heat source. It travels in a straight line, heating up substances that absorb its energy along the way.

By controlling for the third type of transfer, radiant barriers block heat from entering  and regulate the heat flow in the home. Other kinds of insulation work differently, aiming to slow down the first two methods of heat transfer. In practice, this means that radiant barriers work in a drastically different way from other insulation.

In fact, radiant barriers work better the hotter it is!

They also complement and improve the efficiency of all other insulation.

Finally, radiant barriers don’t just keep heat out; they also keep it in. In a cold climate, radiant barriers stop the heat from escaping, instead redirecting it to other portions of the house. This ensures uniform comfort throughout the house.

It’s also extremely efficient.

#2 Cost Efficiency

If your attic is cooler, your entire home will be cooler.

By reducing the temperature in your attic and anywhere else it’s installed, radiant barriers help you cut down on expensive cooling measures, like air conditioning. Using less air conditioning is a fast track to energy savings.

But not only do radiant barriers enable you to use less air conditioning—maximizing energy savings in the short term—they also help with long-term maintenance costs.

High temperatures cause wear and tear on cooling systems by making them work harder and longer. But they also tax these systems by forcing additional cool air through your ductwork. This extra cool air in turn leads to the accumulation of debris, which shortens the lifespan of your air ducts.

Plus, as noted above, radiant barriers also optimize your heating in a cold climate. This means that you don’t just reap the benefit of greater control all year round; your energy bills will also be lower throughout the year.

So, while it lowers attic temperatures, regulate the heat flow in the home, and increases energy efficiency, taking care of your radiant barrier is important to carry out this job. That is, as long as your radiant barriers are functioning properly, you can continue reaping the benefits.

Solutions for all Radiant Barrier Insulation Problems

If you’re experiencing any of the problems detailed above, we can solve them for you.

Here at Attic Construction, we’re your dedicated radiant barrier experts in Southern California.

Our suite of radiant barrier services includes:

  • Professional installation
  • Repair and maintenance
  • Removal and replacement

Plus, we don’t just service radiant barriers. We’re a one-stop-shop for all your attic construction needs, including insulation removal and installation. Whether it’s your air ducts or insulation that’s giving you problems, we’re here to help. Not sure what the issue might be? Get in touch for a free inspection, no strings attached.

Don’t let issues in your attic bubble up and impact the rest of your home. Get the professional help you need!

Sources: 

  1. Alternative Energy. Radiant Barrier Problems – Why Reflective Insulation Is Flawed.  https://powersolarphoenix.com/radiant-barrier-problems/
  2. Innovative Insulation. What is the difference between Radiant Barrier Foil vs. Spray?  https://www.radiantbarrier.com/resources-articles-what-is-the-difference-between-radiant-barrier-foil-vs-spray/
  3. Norbord. Radiant Barriers: Myths Busted And Facts Explained.  https://www.norbord.com/na/blog/radiant-barriers-myths-busted-and-facts-explained/

The Significance Of Installing Attic Radiant Barrier Insulation

Written by Kevin on . Posted in Radiant Insulation. No Comments on The Significance Of Installing Attic Radiant Barrier Insulation

Radiant barriers are essentially insulation devices used to retain temperature of the surroundings. They are chiefly comprised of reflective aluminum sheets sited on substrate material. The substrates are made of brown paper, plastic films, craft paper, cardboard, plywood sheathing or air infiltration barrier material.

There are two chief types of attic radiant barrier i.e. Spray on and Sheet Barriers. Installation of spray on barriers is quite easy and simple. It is just sprayed on the bottom base of roof. It is made up of paint and metal flecking mix. This mix has sufficient reflective property to redirect the heat. Spray on barrier is very hard-wearing. The sheet radiant barrier comes in the form of big roles. It can be fitted by rolling out on the entire attic. You can roll it up on whole top insulation, hang it from rafter supports, nail it to beneath of the roof or roll it out beneath shingles. All kinds of radiant barriers have same elementary working principle. Heat exchange befalls because of thermal radiation. Radiant barriers minimalize this heat exchange between roof deck and the attic floor. They have a great reflectivity value (typically 0.9 or 90%) and low emissivity value (typically 0.1 or less).

Attic Construction offers San Diego, Orange County & Phoenix insulation installation for radiant barriers. We also offer attic cleaning and insulation removal services to help take care of attic projects from A to Z.  Contact us for a free estimate.

The Benefits Of Installing Radiant Insulation In Your Home

Written by Kevin on . Posted in Radiant Insulation. No Comments on The Benefits Of Installing Radiant Insulation In Your Home

Adding radiant barrier (also called radiant foil) to your traditional home attic insulation in San Diego can upsurge your home’s energy efficiency. Why does radiant barrier work? Well, heat travels from hot to cold. In cold climate, what you need to be alarmed about is the heat getting out and not so much about the cold getting in. The procedure is called “heat loss,” and the objective with any kind of insulation is to lessen heat loss. Radiant insulation San Diego barrier aids with heat loss by decreasing heat loss in its radiant form and by decreasing what is called “convective looping.” Convective looping has to do with the air movement inside your conventional insulation. The greater the degree of air flow, the more your R-value will be decreased.

Additionally, there are other advantages of using radiant insulation. It is lightweight and much easier to install, and after installation, there is less cleanup as there is little risk of tearing or spilling as in old-style fiberglass insulation. Another imperative factor to contemplate is the safety of each product. Fiberglass insulation can be hazardous to the skin, lungs and eyes and necessitates protective clothing and gear. Radiant barrier insulation, however, is wholly safe to touch and move and necessitates nothing more than your normal garments.

Are you searching for “attic insulation installation” or “insulation installation near me” in Orange County? San Diego? Perhaps in the Phoenix area? We provide both insulation installation and insulation removal in San Diego, Phoenix and Orange County areas. Please give us a call to schedule a free estimate.

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