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 Gregory, TX 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 December 02, 2025

Reviewed in December 2025
I couldn’t be happier with the work done on my bathroom tile! The quality is outstanding and the finished space looks incredible. He was professional, courteous, and always on time. He came prepared with his own materials, worked cleanly, and made the whole process stress-free. Honestly, he’s...
MMBIB Services, LLC.
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Reviewed in July 2025
Fantastic customer service and install. Saul and the guys were amazing-worked through the rain and got the entire job front and back in the same day as promised. Very reasonable and competitive pricing. Left the property very clean despite the rains mud. Highly recommend them!
Texas Best Irrigation & Landscaping
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Reviewed in December 2024
From Angelo to Evan, sales to installing, I couldn't have found a better company!!!
JR Bath
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Reviewed in October 2024
Both the gutter installation and sidewalk install exceeded my expectations. It was done in a very timely and very professional manner. 10/10 would recommend!!
Valdez Ventures LLC
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Reviewed in November 2023
Trey and his kind side Kick went above and beyond seeing that my new smart TVwas mounted, installing programmed and everything cleaned up afterwards. They were kind, knowledgeable, and there was no hard sell or ups Elling. I couldnâ t ask for a better experience at a more reasonable price. They...
Custom Home Installations
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Reviewed in July 2023
The crew arrived at the promised time. They were knowledgeable, friendly, and did an outstanding job. The old door was removed, a new door installed, and a covering added to the existing deck in a very short time. Highly recommend. Will be requesting additional services soon.
McAlister Construction
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Reviewed in November 2021
Dan shows up when he says he will and on time. No complaints. He did a wonderful job. I had him install 2 doors and called him back a second time to replace a wax ring on commode. I would definitely use his service again .
Dans Property Maintenance - Home Facebook
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Reviewed in June 2021
The service went fine. I didn't find any better installation than theirs.
Rogue Solar Systems
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Reviewed in June 2021
I reached out to AOK needing assistance getting my Air conditioner installed in the window. They did a great job and everything was done in a timely matter would definitely recommend them to come back and do some more work again!
A.O.K Painting & Remodeling
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Reviewed in March 2021
Consummate professionals! Great attention to detail! Perfect installation and clean up after the job well!
RCJ Construction Services Corp.
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Doorbell Installation questions, answered by experts

It’s best not to install a radiant barrier directly under insulation because it requires an air gap on at least one side to work properly. Instead, you should install the radiant barrier over your existing insulation to create an air space to reflect the radiant heat.

Acoustic foam, fiberglass insulation, soundproof curtains, and specialized drywall are effective in reducing noise transmission.

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.

While not every wall requires a vapor barrier, if you do need one and don’t install it, moisture can get between the walls of your home. This can lead to water damage from mold growth or rot, and the excess moisture could also attract pests, including termites, cockroaches, or ants.

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