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 you remove old insulation before adding new insulation?

• <div><p>You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.</p><p>However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.</p></div>

What are the four common types of insulation?

• <div><p>While there are many different kinds of insulation, spray foam, blown-in, foam board, and batt and roll are the four types you’re most likely to see. That doesn’t mean they’re alike, though. Each one varies drastically in terms of cost, materials used, and how they’re installed—not to mention, how well they limit heat transfer.</p></div>

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Last update on May 19, 2023

Reviewed in May 2023
After three estimates, i found Florida Solar and Air (FSA) provided for the best value in the installation of premier shingle materials for my roof. I have both a standard and flat roof. Both were installed very quickly after the City approved the permit. The project manager Tony made certain...
Florida Home360
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Reviewed in December 2022
Cabinet door was repaired within only a few days. You couldn't even tell that it had fallen out and had broken into 3 pieces. As this was in a motorhome, the installation was a little tricky but Dominick persevered and completed the job in a professional and friendly manner. Would definitely...
Conch Remodeling, LLC
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Reviewed in August 2022
First - hire Keith & I hope you read the rest. If you live in the Keys, you know contacting a plumber on the weekend is almost impossible. I had a water leak that was turning into a serious situation. He came over and stopped it quickly. Once he figured out what was causing it we agreed to have...
Snapper Plumbing Service, LLC
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Reviewed in July 2022
Dave did a great job installing baseboard molding tbroughout the house. Price was reasonable and fair.
DM O'Hara, Inc.
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Reviewed in January 2022
Mr. Barnes came out to my home to give us an estimate for window tinting. He was on time and offered his solution for our requirements. He gave me an estimate. Then I called later and he had an employee installed the window tinting. Very efficient, neat and looks good.
John Barnes Window Tinting, Inc.
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Reviewed in August 2021
Very friendly, knowledgeable staff, the installers did an excellent job explaining everything The company as a whole exceeded my expectations
Precision Door Service Of Miami
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Reviewed in March 2020
Phixser was a TEN! These guys are professional, thorough, courteous and timely and go the extra mile to make sure everything is perfect. They took care of everything for my install of a tankless water heater including the permitting, install, everything, and they never dropped the ball and...
Phixser Solution, LLC
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Reviewed in September 2019
As I had experienced Jeff's work before during the new install of the complete system which by the way, was very clean looking and done right. Everything went great! Jeff was on time and had called to let me know he was on his way. Jeff came in and went right to work. He showed me how to power...
Ellington Air Conditioning & Heat
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Reviewed in August 2019
Jonathon and his team are just a great company to deal with. We needed a new hot water heater installed and he called quickly to give us an estimate and was able to install it the same day. Excellent customer service, Talked to him about some other jobs that we need to have done and we look...
Island Design Build and Remodeling, Inc.
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Reviewed in January 2019
We hired Mr. Williams to do this renovation and other extensive remodeling and improvement tasks in our new home in south Texas. They ripped out an old standard tub in the upstairs master suite and built a really sweet frameless glass enclosed shower in its&#39; place (much large footprint...
New Dynamic Renovations
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Doorbell Installation questions, answered by experts

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.

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

While there are many different kinds of insulation, spray foam, blown-in, foam board, and batt and roll are the four types you’re most likely to see. That doesn’t mean they’re alike, though. Each one varies drastically in terms of cost, materials used, and how they’re installed—not to mention, how well they limit heat transfer.

Fiberglass is considered a favorite garage insulation choice due to its combination of affordability, ease of installation, and overall effectiveness. Fiberglass provides good thermal resistance, helping regulate garage temperatures and minimize heat transfer. Additionally, fiberglass is moisture-resistant, reducing the risk of mold or mildew formation.

The most affordable way to insulate behind unfinished walls is to install fiberglass batts or rolls. These total around $0.75 per linear foot, with the width matching the gaps between standard studs perfectly. However, it’s important to consider the R-value of your insulation and the climate in your area, as fiberglass insulation isn’t the best in terms of preventing heat transfer. Plus, the most affordable option may cost more on electricity bills over time. The most affordable way to insulate behind finished walls is to leave them up and use blown-in insulation to avoid drywall replacement.

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