What is the downside of radiant barriers?

• <div><p>The primary downside of radiant barriers is their limited effectiveness in cold climates. They are designed to reflect radiant heat, making them less beneficial in cooler conditions where heat retention is more important. </p><p>Radiant barriers require proper installation to maximize effectiveness. Incorrect placement can lead to minimal benefits. They also do not provide insulation, meaning they should be used in conjunction with traditional insulation for optimal energy efficiency. </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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Last update on January 12, 2026

Reviewed in January 2026
Michael was very informative during the walkthrough helping us pick the right unit. The team came in the very next day (the day before Christmas!) and installed the heater right away. Great follow up after the installation.
Purrfect Pools and Construction
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Reviewed in August 2025
Hired to install 70inchTV onto wall. Professional work with great pricing. Punctual, respectful did not leave a mess installing as cable persons did. Gave an estimated time of completion and was very close to it. I would recommend him to friends and family. ***** GREAT WORK! I should have...
Wiredsmart Systems
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Reviewed in July 2024
I asked for a fence to be installed. He installed very quickly and efficiently for a good price. I will definitely be utilizing his s ervices again for future projects.His workmanship speaks for itself
Geovani Construction
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Reviewed in April 2024
Ismael and his brother Edgar installed 2 wall thermostats for my 220v in wall heaters. They were prompt, extremely knowledgeable and courteous. I would hire them again. Price was very fair.
LIGHTLAND electric
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Reviewed in September 2023
Everyone I spoke to was super nice very professional and easy to work with! Then Wayne my installer was awesome and did excellent work in a timely manner and I highly recommend Wayne and also John Wick. I wish I could work with DP Door Pros on every project
DP Door Pros, Inc.
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Reviewed in September 2023
The did the install and the new heater system install in one day and clean up everything before they left. Great customer service from Claudia to get me a great job and price.
N.R.G Heating and Air Conditioning, Inc.
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Reviewed in July 2023
Very best in customer service during installation. The electrician, Donald, was exceptional at understanding the objective, designing a solution, and completing the project on time. Polite, communicative, neat and effective. Highly recommend!
Rios and Burke Electric
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Reviewed in February 2023
Very prompt and professional, Removal of old driveway doors and installation was done fast! I was very impressed and pleased. All it took was 1 -1/2 days and it looks BEAUTIFUL !!
Alamo Fence
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Reviewed in December 2022
He was very knowledgeable and cleaned up after the installation
Proelco
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Reviewed in June 2022
He installed my Tesla Wall connector. Excellent service!
Mr. Electric of Riverside
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Top-Rated Doorbell installation pros in Morongo Valley - Updated Nov 2026

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Doorbell Installation FAQs, answered by experts

The cost to install or upgrade insulation generally ranges from $1.50 to $4.00 per square foot. The final price depends on factors such as the type of insulation chosen, the total area to be covered (home size), and local labor costs.

Depending on where you live and the conditions of your basement, you may not need to insulate your basement. Your best bet is to talk to a basement remodeling company to find out what they recommend doing.

Insulating your basement can help improve your home's energy efficiency, but it will also increase the cost of your basement remodel project. The average cost of installing basement insulation is $2,400.

Professionals can install a radiant barrier in a day or two, but DIY installation will take several days. The time it takes to install a radiant barrier depends largely on the size of the space and the installation method. Larger homes can take a pro two to three days to finish the job. It’s also quicker to lay foil over existing insulation.

The primary downside of radiant barriers is their limited effectiveness in cold climates. They are designed to reflect radiant heat, making them less beneficial in cooler conditions where heat retention is more important.

Radiant barriers require proper installation to maximize effectiveness. Incorrect placement can lead to minimal benefits. They also do not provide insulation, meaning they should be used in conjunction with traditional insulation for optimal energy efficiency.

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.

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