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>

Can I install a radiant barrier myself?

• <div><p>It is possible to install a radiant barrier yourself. However, knowing <a href="https://www.angi.com/articles/how-install-radiant-barrier.htm">how to install a radiant barrier</a> and actually doing it are two totally different things. For example, it’s important that they be installed in a straight line but at an angle that creates a gap between the roof panels and the foil or spray. If this gap is too large or small, it won’t function as it should, and that may be hard to avoid if you’re only a novice. When in doubt, leave this job to a pro.</p></div>

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*The Angi rating for Doorbell Installation companies in Aulander, NC 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 January 16, 2025

Reviewed in January 2025
The project included windows and doors replacement, exterior trim, and rain gutter installation. Project was done efficiently and expeditiously. Contractors for all work were very hard working and conscientious, concerned to address my needs and questions. Project manager AJ Smith saw an...
Home Genius Exteriors
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Reviewed in August 2024
Window install was completed with professionalism. Calvin took extra steps to ensure the install looked perfect while Andre did a superb job fitting the flashings on the outside. I would highly recommend them for window installs.
West Shore Home Greenville NC
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Reviewed in July 2024
The Installation Professional completed the job expeditiously and professionally.
Full Motion Network LLC
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Reviewed in March 2024
The house is old and was built in 1975, there was a lot of settling of the foundation, when Charles went in to install the doors he straightened it up so the new door fit in perfect airtight, swinging properly it was just perfect. I will continue to use Charles company for the rest of my life...
Top Notch Home Solution, LLC
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Reviewed in January 2022
The gentleman, Tanner and Hunter did a wonderful job. They installation a walk in shower with new plumbing. They arrived on time, explained everything they were doing, layed down drop cloths and left the home clean. I am a very happy women! I will recommand Tanner and Hunter great people.
West Shore Home Atlanta
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Reviewed in March 2020
The two installers Phil and Tijuan were very knowledgeable and professional. They were very considerate of my personal property, careful of anything that needed to be moved or changed. On a scale of 1-10, ten being excellent I give them 10 plus. The manager Mr. Anthony Brown, was the absolute...
AceTech IT & Computer Services
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Reviewed in June 2018
not only did he install the appliance, he called back twice to check for any leakage. it was quite impressive that he wanted complete satisfaction from his work
Faith-Based Home Services
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Doorbell Installation questions, answered by experts

Insulating your basement walls offers numerous advantages that make the project well worth it. By adding insulation, you can reduce the chances of moisture damage to the house's structure and lower the odds of mold growth. You'll also add comfort to the space by reducing temperature swings and increasing your home's energy efficiency, potentially reducing your energy bills to earn your investment back.

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.

It is possible to install a radiant barrier yourself. However, knowing how to install a radiant barrier and actually doing it are two totally different things. For example, it’s important that they be installed in a straight line but at an angle that creates a gap between the roof panels and the foil or spray. If this gap is too large or small, it won’t function as it should, and that may be hard to avoid if you’re only a novice. When in doubt, leave this job to a pro.

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.

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

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