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>

Can I use fiberglass insulation to soundproof a room?

• <div><p>We do not recommend fiberglass insulation for soundproofing purposes, especially if you are working on a room that’s part of your living space. <a href="https://www.angi.com/articles/diy-dangers-fiberglass-insulation-hazards.htm">Fiberglass insulation is dangerous</a>, and the installation process is hazardous. It is also harmful to the environment. When there are so many newer, healthier non-fiberglass alternatives in the market, the lower cost of fiberglass insulation simply doesn’t justify the harm and danger it poses.</p></div>

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Last update on May 31, 2024

Reviewed in May 2024
The workers Cedrick, Jeremiah, and Mark were the best. They installed the shower with no problem. I will recommend those guys to everyone who needs installation. I give them and the company 5 stars.
West Shore Home Jacksonville
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Reviewed in April 2024
Installers were very knowledgeable and professional. Couldn’t be happier with them.
Clean Water of El Paso
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Reviewed in February 2024
Professional, timely, courteous. Did exactly what I wanted, very neat installation. I would recommend this company for any water softener installation.
Innovative Plumbing, LLC
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Reviewed in June 2023
Father and son outfit, discovered a new wall mount device which gave them a little pause, but in the end, excellent installation.
ELP Computer Repair & Consulting
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Reviewed in April 2023
The install was quick and the product immediately made an impact
Sears Roofing
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Reviewed in November 2022
Installed Doggy Door ! Very professional and courteous. Would highly recommendÃ¢Â Â¦
JIA Remodeling Construction & Associates
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Reviewed in October 2022
Fastest and most professional installation
The Air Conditioning Company LLC
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Reviewed in February 2022
Excellent service. They were very professional and installed our new garage doors in a timely manner
Gil's Garage Door's
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Reviewed in August 2021
They install with only the best quality windows, and do an amazing job!
Window Logic
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Reviewed in August 2021
Installers were very friendly and addresses all my concerns.
EP Mechanical Technologies, Inc.
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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.

Insulating a detached garage won't reduce your home's heating or cooling bills—and insulating an attached garage will only have a small effect on your home's energy efficiency. However, insulating an attached garage can reduce the transfer of heating and cooling to and from the outdoors, which can reduce the amount of energy your home needs to stay comfortable. Also, having an insulated garage is just more pleasant. Balance the cost of insulating your garage with how you'll use the space to determine if the project is worth it.

We do not recommend fiberglass insulation for soundproofing purposes, especially if you are working on a room that’s part of your living space. Fiberglass insulation is dangerous, and the installation process is hazardous. It is also harmful to the environment. When there are so many newer, healthier non-fiberglass alternatives in the market, the lower cost of fiberglass insulation simply doesn’t justify the harm and danger it poses.

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.

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

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