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>

Does the paper on insulation go in or out?

• <div><p>If you’re using faced insulation with paper, face the paper toward the inside of the room during the installation process. </p><p>A good way to remember this is that the paper should face the “warm side” as it’s the vapor barrier, meaning it should face toward where the heat will be coming from.</p></div>

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Q: Does the paper on insulation go in or out?

• <div><p>If you&rsquo;re using faced insulation with paper, face the paper toward the inside of the room during the installation process. </p><p>A good way to remember this is that the paper should face the &ldquo;warm side&rdquo; as it&rsquo;s the vapor barrier, meaning it should face toward where the heat will be coming from.</p></div>

Q: What types of insulation offer the best energy efficiency?

• <div><p>Reflective and high R-value batt or roll insulation are often considered energy-efficient, offering significant thermal resistance benefits.</p></div>

Q: Is R13 or R30 insulation better?

• <div><p>R-30 insulation is better for higher thermal resistance, but whether it&rsquo;s &quot;better&quot; depends on the application. R-30 is much thicker and suited for areas like attics or floors in cold climates, where more insulation is required. R-13, on the other hand, is thinner and works well for 2x4 walls or milder climates where less insulation is sufficient. Choosing between R-13 and R-30 depends on the area being insulated and the climate. For example, R-30 provides more insulation but may not fit everywhere in your home.</p></div>

Q: What is the safest insulation for basement walls?

• <div><p>Rigid foam board insulation is one of the safest insulation materials for basement walls. The panels offer a moisture barrier to prevent mold and mildew build-up. At the same time, this material is also fire-resistant, so you don&rsquo;t have to worry as much about a fire breaking out as you would with spray foam insulation. </p></div>

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Verified Reviews for Doorbell Installation pros in Mesa, WA

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

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

Last update on April 15, 2026

Reviewed in April 2026
Travis was on time , professional friendly, and affordable. He brought the right new parts, realigned the top lock and kept me informed. I recommend you hire him for any job you need.
Helping Hand 509
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Reviewed in June 2024
Heâ s the best in town ! You will not be disappointed. Hire him for all your needs
Cobian Excavation LLC
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Reviewed in April 2024
Great experience with Alex everything was done properly I will keep using garage door service with Alex
PACIFIC NORTHWEST GARAGE LLC
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Reviewed in June 2023
very easy to work with and did the job fast.
VRC Tree Service, LLC
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Reviewed in March 2022
They were fantastic, they explained the whole process to me and as soon as I got the match they came to my house. The project was done in a clean way, I will definitely recommend them.
Z PLUMBERZ OF KENNEWICK
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Reviewed in September 2021
We are very happy with the installers, sales staff, and office staff at Re-Bath. Our bathroom is beautiful and we feel that we paid for a great product that will last for years.
Rebath of Tri Cities
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Reviewed in September 2021
Quick response, great communication . Happy with work done at agreed price. Will use again ð
Allende's Lawn Care Maintenance & Landscaping
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Reviewed in August 2021
I will definatly recommend Facelift window cleaning to everyone. So acomidating. She saved us money by not having to come back to do the job.
FaceLift Window Cleaning & Pressure Washing
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Reviewed in August 2020
I had a metal roof installed. Eddie C and Miguel worked with me and did excellent work. I would recommend Eddie and his crew to anyone wanting or needing a new roof. Workers were always on time, cleaned up after themselves and checked on my satisfaction throughout the job. They take great...
Roofing Plus, LLC
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Reviewed in October 2018
Loren Snapp is a jack of all trades and master of nothing; worse yet, he's a liar and a dishonest cheat. Last spring, when he first assessed our tile job, and was specifically asked about the previously installed backer board, HE DID NOT MENTION ANY PROBLEMS. He required a 40% down payment...
Floorz An More
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Doorbell Installation questions, answered by experts

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.

If you’re using faced insulation with paper, face the paper toward the inside of the room during the installation process.

A good way to remember this is that the paper should face the “warm side” as it’s the vapor barrier, meaning it should face toward where the heat will be coming from.

Reflective and high R-value batt or roll insulation are often considered energy-efficient, offering significant thermal resistance benefits.

R-30 insulation is better for higher thermal resistance, but whether it’s "better" depends on the application. R-30 is much thicker and suited for areas like attics or floors in cold climates, where more insulation is required. R-13, on the other hand, is thinner and works well for 2x4 walls or milder climates where less insulation is sufficient. Choosing between R-13 and R-30 depends on the area being insulated and the climate. For example, R-30 provides more insulation but may not fit everywhere in your home.

Rigid foam board insulation is one of the safest insulation materials for basement walls. The panels offer a moisture barrier to prevent mold and mildew build-up. At the same time, this material is also fire-resistant, so you don’t have to worry as much about a fire breaking out as you would with spray foam insulation.

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