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>

Top 10 Best Doorbell installation pros in Alpine, CA

Q: Is it OK to put plywood over insulation in an attic?

• <div><p>Installing sheets of plywood over <a href="https://www.angi.com/articles/attic-insulation-guide.htm">attic insulation</a> is a popular choice, especially in storage spaces. That said, insulation works by trapping hot air&mdash;so it needs extra space to expand and be effective, or you might reduce the energy efficiency of your home. </p><p>It&rsquo;s important that you never compress the insulation by installing flooring directly on top of it. In many houses, you&rsquo;ll need to install a subfloor before putting plywood over insulation in your attic.</p></div>

Q: What do you put behind board and batten siding?

• <div><p>When installing board and batten siding, make sure there is wall sheathing <i>and</i> a moisture-resistant barrier installed. Behind that sheathing should be plywood or OSB for you to nail the boards and battens into. If there isn&rsquo;t plywood or OSB, you can install vertical furring strips at 1&frac12;- to 2-foot intervals to nail the boards and battens to.</p></div>

Q: Do I need a vapor barrier in my basement?

• <div><p>Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces. </p></div>

Q: Can I install insulation behind drywall myself?

• <div><p>Yes, you can <a href="https://www.angi.com/articles/how-to-install-insulation.htm">install insulation</a> behind drywall yourself, but only if your walls are not finished. If your studs are exposed, installing fiberglass insulation in roll or batt form is very straightforward and just requires a few tools and some safety equipment. If your walls are already finished and you&rsquo;re looking to add insulation, it&rsquo;s better to hire a professional, as you&rsquo;ll likely need blown-in insulation, which can be dangerous to work with and a challenge to get into the proper areas in your wall voids.</p></div>

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*The Angi rating for Doorbell Installation companies in Alpine, CA 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 March 03, 2026

Reviewed in March 2026
They installed my front door, did a great job
Greenbuild Construction, Inc.
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Reviewed in January 2026
Install New Locks by Locksmiths Bostonia CA was fast, professional, and reliable, providing secure installation, smooth operation, and enhanced property protection with service you can trust.
Locksmiths Bostonia CA
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Reviewed in December 2025
Top-notch service! They installed my new lock cleanly, tested it multiple times, and ensured my door was fully secure. Truly dependable work that adds real peace of mind.
Locksmiths Santee CA
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Reviewed in November 2024
Very trustworthy installer did an Excellent job! Fence looks perfect, good quality product, and best price around! Highly recommend Mike and will be using his service again.
Nation Construction Services
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Reviewed in May 2024
The plumber (Christian) made two trips to find the right toilet after the first place didnâ t have the toilet that I had requested on a Thursday then came back on a Saturday (since it was too late to install) and installed it, Installation was very clean!
Nieves Plumbing - Unlicensed Contractor
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Reviewed in January 2024
Recent window installation with US Door & Window rated 10 out of 10! Order and delivery were easy and timely; installation handled professionally by highly skilled technicians committed to quality work and customer service. Took the time to access a particularly difficult replacement and provide...
US Window & Door
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Reviewed in October 2023
Great job getting our tile installed in one day. Clean , prompt & professional. Will be using this co again on our next tile installation job. Thanks Enrique and Vincent.
MZ TILE & MARBLE SERVICES
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Reviewed in September 2023
I got my home electrical install it by him. Also, I got my tesla charger. He’s really professional and talented person with time management, schedule and service.
HKY Electric & Communications
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Reviewed in April 2023
Pro installers, respectful of my home and a great product! I would not hesitate to hire again!
Blacked Out Tint Home and Office
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Reviewed in November 2022
We were in a pinch and need tile installed in our bathroom ASAP. They were able to do the install the next day and it looks beautiful, very professional work. Noe was very communicative and always responded to me quickly.
El Rey Tile
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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.

When installing board and batten siding, make sure there is wall sheathing and a moisture-resistant barrier installed. Behind that sheathing should be plywood or OSB for you to nail the boards and battens into. If there isn’t plywood or OSB, you can install vertical furring strips at 1½- to 2-foot intervals to nail the boards and battens to.

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

Yes, you can install insulation behind drywall yourself, but only if your walls are not finished. If your studs are exposed, installing fiberglass insulation in roll or batt form is very straightforward and just requires a few tools and some safety equipment. If your walls are already finished and you’re looking to add insulation, it’s better to hire a professional, as you’ll likely need blown-in insulation, which can be dangerous to work with and a challenge to get into the proper areas in your wall voids.

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.

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