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>

Should I remove old attic insulation before adding new?

• <div><p>Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: </p><ul><li><p>If the insulation is over 15 years old</p></li><li><p>If the insulation is wet or moldy</p></li><li><p>If it is <a href="https://www.angi.com/articles/what-is-vermiculite-insulation.htm">vermiculite insulation</a></p></li><li><p>If you see signs of pest infestation</p></li></ul><p>Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.</p></div>

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*The Angi rating for Doorbell Installation companies in Middletown, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Doorbell Installation needs.

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Last update on November 24, 2020

Reviewed in November 2020
We recommend continental siding because the installers did a wonderful job. The house looks beautiful. We really like the color and it was the right color.
Continental Siding Supply, Inc.
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Reviewed in October 2020
Good quality windows. Installers were excellent. Very Happy with the windows. The clean up was very good. It helped the utlities bill helped 6%.
Continental Siding Supply
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Reviewed in May 2020
Contract was put together by employee who seriously underestimated price of materials and labor, then quit suddenly. Stalled the project a bit. Steve (owner of company) stuck by the contract and I’m pretty sure he lost money on this project, but he did right by us. The bathroom looks great,...
Top Gunn Family Construction, Inc.
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Reviewed in March 2020
great staff from start to finish showing you what you need to know answering questions and showing you how everything works once it is installed making sure you know how it works before they leave
Universal Windows Direct of St Louis
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Reviewed in July 2018
I had the bathtub removed and had a shower put in. We really like the shower. The installer was really nice and cleaned up after himself.
Bath Fitter
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Reviewed in March 2018
Dave explained everything that should should take place with the install, and all equipment that was needed and how it is supposed to work. He answered all my questions and was very professional with suggestions.
Transform Home Improvements (formerly Sears)
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Reviewed in October 2014
Frank and his crew installed pier system to stabilize my front porch. Frank was very helpful in answering all of my questions and concerns. Crew show up right on time and did a very professional job! Would definitely use him again.
Advanced Foundation Repair & Replacement
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Reviewed in July 2013
Lynn and his crew were supposed to tear out the cabinets by a certain date and the kitchen was not ready when the cabinets arrived. He got paint all over the new cabinets and trim. The mudding job on the walls looks terrible and there are waves on the walls where the surface is not flat. He took...
Worry Free
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Reviewed in June 2013
This is a premier exterior remodeler in the St. Louis area. They were very professional in all aspects from the first time I met their design specialist to the very last nail that was picked up. They went out of their way to make sure that I was completely satisfied with my project. Every one...
Lakeside Renovation & Design
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Reviewed in March 2013
Jim arrived on time. Very polite. told us that the opener was going out. Installed the opener. And was thankfull that we called him.
Durbin Garage Doors LLC
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Doorbell Installation questions, answered by experts

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.

Air sealing isn't necessary for attic insulation, but it's incredibly helpful since it can help you identify and patch any existing air leaks. Failing to find these leaks before adding insulation can render your insulation less effective, leading to higher energy bills and potentially costly repairs down the line.

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.

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation:

If the insulation is over 15 years old
If the insulation is wet or moldy
If it is vermiculite insulation
If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

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.

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