Should I remove old attic insulation before adding new?

• <div>Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: <ul><li>If the insulation is over 15 years old</li><li>If the insulation is wet or moldy</li><li>If it is <a href="https://www.angi.com/articles/what-is-vermiculite-insulation.htm">vermiculite insulation</a></li><li>If you see signs of pest infestation</li></ul>Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.</div>

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Last update on February 13, 2025

Reviewed in February 2025
Great work. When Steve noticed the job was more complicated than expected, he did the extra work for the original price. Also installed an extra switch and light at no extra cost. The work looks great. I will definitely call Ozark Electric for any electrical work in the future.
Ozark Electric AR
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Reviewed in February 2025
I had Rick build an install a flagpole when he was 18 years old, he hand dug a hole 3’ x 3’ x 6’ deep before we got him stopped ,he would have dug to china if I had gone to lunch ,hardest working kid I’ve hired,that was several years ago! Character to match it 😎
MBH Custom Repair
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Reviewed in December 2024
Excellent experience. KG was professional and courteous. He had the new exterior door installed quickly. Will call for future work.
KG Handyman & Remodeling
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Reviewed in May 2022
The people at bathplanet are super nice, at first. They came and installed the shower in one day, and the shower is great. The installers were very professional and cleaned up. The problem came when they were done. They had chipped two of our tile up against the tub, but didn't inform us of the...
The Bath Planet of Arkansas, LLC
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Reviewed in May 2022
The people at bathplanet are super nice, at first. They came and installed the shower in one day, and the shower is great. The installers were very professional and cleaned up. The problem came when they were done. They had chipped two of our tile up against the tub, but did not inform us of the...
The Bath Planet of Arkansas, LLC
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Reviewed in August 2021
Very pleased with how my project list of installs turned out. Timely, professional and reasonable - I will definitely call to book for help with my next project list
Rocket Service, LLC
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Reviewed in November 2020
Very friendly and professional! Top quality work installing electricity in our shed/workshop. Highly recommend! Thanks to Todd, Ed, and Milton!
Reichen Electric
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Reviewed in May 2020
They were very easy to talk to, and went over everything very well. The installers worked very hard and did their job well. My fiancé and I appreciate them and will enjoy our windows through the years to come. Highly recommend their work.
Factory Direct Exteriors, Inc.
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Reviewed in June 2019
I received 3 bids when looking to have this project done. IHC s bid was actually slightly higher than the others but I was more impressed by the professionalism showed when submitting the bid. There was some issues with the painting work but was easily resolved. The flooring laid out was...
Iron Hog Construction & Realty, LLC, DBA IHC
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Reviewed in October 2018
We have had many things done by A-State Handymen. Some of the most recent are a complete bathroom remodel, tile installation in multiple rooms, siding and drywall for a room addition, deck addition, baseboards throughout entire house. ALL of the projects they have done have been completed either...
A State Handymen Inc
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Doorbell Installation questions, answered by experts

They recommend sustainable materials and water-saving fixtures, tailoring choices to balance sustainability and style.

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.

Costs depend on area size, material thickness, and site preparation needs.

Several types of insulation are effective for crawl spaces, with spray foam and rigid foam boards being two of the best options. Closed-cell spray foam insulation is a strong choice because it effectively repels moisture, resists biological growth, seals the air, and provides excellent thermal protection, especially in hard-to-reach areas. Rigid foam insulation boards are another excellent material as they insulate well, resist water damage, and will not settle over time like fiberglass or cellulose.

Minimal maintenance is required, though regular inspections to ensure insulation hasn't shifted or deteriorated can improve performance over time.

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