Should wall insulation be faced or unfaced?

• <div><p>Unfaced wall insulation is easier to cut and install, making it the better choice for a DIY project. It’s also more affordable. But if it’s unfaced, you’ll likely need to add a vapor barrier to reach your desired R-value and efficiency, as it doesn’t offer any moisture barrier.</p><p>Faced insulation uses paper or foil to create a built-in barrier and doesn’t require an extra step. It’s also more fire-resistant and safe. But it’s quite a bit more expensive and a little bit harder to work with as a DIYer.</p></div>

Is a radiant barrier better than insulation?

• <div><p>Radiant barriers and insulation serve different purposes, so one is not inherently better than the other. Radiant barriers reflect radiant heat, helping keep spaces cool, especially in hot climates, while insulation slows heat transfer through conduction. For optimal energy efficiency, it’s best to use both together. </p><p>Radiant barriers can enhance the performance of insulation by preventing heat gain in the summer and heat loss in the winter. The choice between them depends on specific climate conditions and the building’s design requirements.</p></div>

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Last update on December 01, 2025

Reviewed in December 2025
Steven was awesome in everything he, & his team did…from arriving on time, to removing the old windows, to installing the new ones…to quickly cleaning up! They did it all in such a short period of time! Couldn’t ask for a better team to work with! I would highly recommend using Window Expo for...
Window Expo
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Reviewed in October 2025
Ed and Jim were our installers and did a fantastic job on our new shower. They were very professional and answered any questions that we had. It only took 2 days to finish. Would highly recommend them.
Bath Expo
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Reviewed in May 2024
Since covid controlled our lives several years ago, I was reluctant to have windows installed in our lanai due to horror stories of companies in this business that failed to perform as promised. This March, 2024, I contacted Discount Aluminum about new windows on chance they were a...
Discount Aluminum
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Reviewed in July 2022
Eric and his team did a nice job. I would gladly recommend them for others having a ceiling installed.
Meyer Drywall
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Reviewed in April 2022
The company in Oak Harbor Ohio was very easy to work with. They made sure things were done right. Good installation. No complaints. They did a good job.
Radiant Windows LLC
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Reviewed in January 2022
Efficient and considerate workers who installed the new shower.
Joyce Windows, Sunrooms & Baths
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Reviewed in December 2021
Hands down the best around . After assessing our home Billy Installed a new electrical service to our house , explained everything throughly and had the job completed quickly . Very knowledgeable and willing to do whatever it took to get the job done correctly . We thank you for your service !...
Hall's Premium Electric LLC
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Reviewed in July 2021
Workman got here on time, did the work, and had the attic antenna installed in approximately 45 minutes. I paid the bill and he was on his way.
AR's and Yours Antenna and Satellite
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Reviewed in December 2020
Shawn installed 3 lights for me. Did a great job at a good price. Update: 05/21/2021. This was a nightmare experience. Shawn said that he could build a cabinet in my bathrooms. He completed the 1st one, and the top was not straight, and there was a hole in the drywall. He then said he would be...
SC Construction
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Reviewed in October 2020
We were remodeling a master bathroom and we received a damaged vanity from Home Depot. They made sure to come back 2 weeks later to finish the install once we received a new vanity. Thanks guys and good job.
K's Construction
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Doorbell Installation questions, answered by experts

Installing sheets of plywood over attic insulation is a popular choice, especially in storage spaces. That said, insulation works by trapping hot air—so it needs extra space to expand and be effective, or you might reduce the energy efficiency of your home.

It’s important that you never compress the insulation by installing flooring directly on top of it. In many houses, you’ll need to install a subfloor before putting plywood over insulation in your attic.

Unfaced wall insulation is easier to cut and install, making it the better choice for a DIY project. It’s also more affordable. But if it’s unfaced, you’ll likely need to add a vapor barrier to reach your desired R-value and efficiency, as it doesn’t offer any moisture barrier.

Faced insulation uses paper or foil to create a built-in barrier and doesn’t require an extra step. It’s also more fire-resistant and safe. But it’s quite a bit more expensive and a little bit harder to work with as a DIYer.

Radiant barriers and insulation serve different purposes, so one is not inherently better than the other. Radiant barriers reflect radiant heat, helping keep spaces cool, especially in hot climates, while insulation slows heat transfer through conduction. For optimal energy efficiency, it’s best to use both together.

Radiant barriers can enhance the performance of insulation by preventing heat gain in the summer and heat loss in the winter. The choice between them depends on specific climate conditions and the building’s design requirements.

Doubling the insulation in your home also doubles the R-value of said insulation. In other words, by adding more insulation, you can reduce the heat loss by half. Most homes benefit from increasing insulation. Older homes, in particular tend to have less insulation as is, so doubling your insulation could drastically reduce your energy bills, keep your home more comfortable, and take the strain off your HVAC system.

Open-cell foam insulation has a life span ranging between 15 to 25 years when well cared for. However, the material may degrade sooner in areas with high humidity or after prolonged water exposure. Proper installation and maintenance can maximize its longevity but requires close monitoring. Closed-cell foam insulation has a longer life span of 30 to 50 years.

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