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>

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: How long does it take to install a radiant barrier?

• <div><p>Professionals can install a radiant barrier in a day or two, but DIY installation will take several days. The time it takes to install a radiant barrier depends largely on the size of the space and the installation method. Larger homes can take a pro two to three days to finish the job. It&rsquo;s also quicker to lay foil over existing insulation. </p></div>

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: 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>

Q: What are the disadvantages of wool insulation?

• <div><p>Each of the three types of wool insulation has particular disadvantages. While their R-value is higher, they all cost more than fiberglass versions. Installing mineral wool and sheep wool requires protective gear. Because of its vulnerability to insects, chemicals are used in its production. Hemp wool is more costly to install than other types because additional tools and labor are involved. </p></div>

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Verified Reviews for Doorbell Installation pros in Drummond, MT

*The Angi rating for Doorbell Installation companies in Drummond, MT 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 Drummond, MT 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 October 15, 2025

Reviewed in October 2025
Signed contract in November for a bath to shower conversion. We were hosting a wedding in August. Work was guaranteed to be done in March. The first two project managers quit. The third, RJ, was disorganized and condescending. The project was not finished by the wedding and still not done. ...
Your Home Improvement Company, LLC
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Reviewed in January 2025
Even though JJ Is my son, he is very professional. There was no different treatment for me than for his other customers. He told me what needed done, what it would take to get it done, how much it would cost & what he does to get the job done. He is very meticulous about his work & does an...
Murray's Mountain Side Painting
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Reviewed in October 2024
Todd and Jesse came out to my home, wanted to know my concerns concerning my heating/ac needs. Both did a thorough evalution of my home underneath crawl space, and one day later gave me a solid bid for the work to be performed with the pricing. One week later, installation started. They are...
American Heating Cooling & Refrigeration, LLC
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Reviewed in April 2024
Skyler and his crew did great work! Would highly recommend!
Havoc Roofing LLC
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Reviewed in March 2024
Clint was so easy to work with, his fee was reasonable, he was flexible in his time available and our garage doors look beautiful!
Coffman Garage Door Services
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Reviewed in April 2023
Nathan got back to me immediately and was doing the job within two days!! They cleaned up all the branches and debris and would definitely recommend them to anyone considering tree removal!
Montana Tree Masters
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Reviewed in October 2022
Westley completed my Bathroom renovation about 4 months ago and did an amazing job. I was very happy he was so detailed oriented and made sure things were done right.
Concrete Coating Systems
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Reviewed in September 2021
They are incredibly helpful and very responsive and I will hire them if they are 2miles away from my location
Eagle Pump Service
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Reviewed in September 2021
Really nice guy to work with, prom0t.for every appointment and.did the work we agreed on in very good time.
Precision Tree Care
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Reviewed in November 2020
Michael is reliable and did a great job cleaning my gutters
Reimer & Sons Painting, LLC
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Doorbell Installation questions, answered by experts

Professionals can install a radiant barrier in a day or two, but DIY installation will take several days. The time it takes to install a radiant barrier depends largely on the size of the space and the installation method. Larger homes can take a pro two to three days to finish the job. It’s also quicker to lay foil over existing insulation.

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.

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.

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.

Each of the three types of wool insulation has particular disadvantages. While their R-value is higher, they all cost more than fiberglass versions. Installing mineral wool and sheep wool requires protective gear. Because of its vulnerability to insects, chemicals are used in its production. Hemp wool is more costly to install than other types because additional tools and labor are involved.

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