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>

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Q: What is the best R-value or thickest insulation for a 2x4 wall?

• <div><p>For standard 2x4 walls, the ideal insulation has an R-value between R-13 and R-15. This level of insulation, typically around 3.5 inches thick, fits well within the wall cavity. Common options include fiberglass batts and spray foam. The best choice for your home can depend on your climate; use R-value maps, like those from Energy Star, to determine the recommended level for your region. For colder climates, you might also consider adding exterior insulation for greater efficiency. Always check with your local building codes to ensure you meet any required standards.</p></div>

Q: How long does open-cell foam last?

• <div><p>Open-cell foam insulation has a life span ranging between 15 to 25 years when well cared for. However, the material may degrade sooner in areas with high humidity or after prolonged water exposure. Proper installation and maintenance can maximize its longevity but requires close monitoring. Closed-cell foam insulation has a longer life span of 30 to 50 years.</p></div>

Q: Should you wear a mask when cutting insulation?

• <div><p>For your safety, you should always wear a mask when cutting batts of fiberglass insulation. We also recommend wearing eye protection, safety gloves, and long sleeves to protect your skin. Properly suiting up helps you avoid several fiberglass issues, such as cuts from the tiny shards of glass and inhaling small bits of fiberglass.</p></div>

Q: What's the best insulation for a garage?

• <div><p>Fiberglass is considered a favorite garage insulation choice due to its combination of affordability, ease of installation, and overall effectiveness. Fiberglass provides good thermal resistance, helping regulate garage temperatures and minimize heat transfer. Additionally, fiberglass is moisture-resistant, reducing the risk of mold or mildew formation. </p></div>

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Verified Reviews for Doorbell Installation pros in Gwinner, ND

*The Angi rating for Doorbell Installation companies in Gwinner, ND 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 Gwinner, ND 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 March 02, 2024

Reviewed in March 2024
Mark is very professional, detail-oriented, and reliable. We live in a 100+ year old home and Mark was able to restore and update everything to perfection. He worked together with us on planning and gave us several options and thoughtful suggestions on each project. Restoring an old home comes...
MWR Construction, LLC
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Reviewed in February 2023
Great attention to detail and I've already recommended them to others!
DC Spray Foam Services, LLC
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Reviewed in December 2022
John communicated very well, he has great attention to detail and finishes the job.
Manthey Construction
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Reviewed in July 2022
professional and very easy to talk with
Roof Keepers, LLC
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Reviewed in June 2022
Ramon, Johnny and Tyrus did a very good job installing drain tile and sump pump in our basement. They were very friendly and communicated very well throughout the project. They left the worksite very clean when they left. Would not hesitate to use them again.
Groundworks
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Reviewed in March 2022
We enjoyed the process so far from Brady the sales guy to Josh the Production Manager. Brady worked to save us a few bucks and fit our budget. We are excited to see our new bathroom installed.
Your Home Improvement Company, LLC
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Reviewed in October 2021
Efficient and cleanly. Good communication and friendly!
American Waterworks
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Reviewed in February 2021
My house and driveway look brand new and I never thought my back deck would ever look the way it does. My wife couldnâ t be more happy. Couldnâ t beat the price they charged me either. Cheapest anywhere around Phoenix. Had to tip! Thanks again.
Dust Doctors, LLC
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Reviewed in June 2014
I could write a novel on how horrible their services were. First off, the salesman lied about the windows and how it would help my heating bill. He claimed the company had different areas of expertise, with trained professionals in each area. My windows would be measured to fit perfectly. Day of...
Your Home Improvement Co
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Doorbell Installation questions, answered by experts

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.

For standard 2x4 walls, the ideal insulation has an R-value between R-13 and R-15. This level of insulation, typically around 3.5 inches thick, fits well within the wall cavity. Common options include fiberglass batts and spray foam. The best choice for your home can depend on your climate; use R-value maps, like those from Energy Star, to determine the recommended level for your region. For colder climates, you might also consider adding exterior insulation for greater efficiency. Always check with your local building codes to ensure you meet any required standards.

Open-cell foam insulation has a life span ranging between 15 to 25 years when well cared for. However, the material may degrade sooner in areas with high humidity or after prolonged water exposure. Proper installation and maintenance can maximize its longevity but requires close monitoring. Closed-cell foam insulation has a longer life span of 30 to 50 years.

For your safety, you should always wear a mask when cutting batts of fiberglass insulation. We also recommend wearing eye protection, safety gloves, and long sleeves to protect your skin. Properly suiting up helps you avoid several fiberglass issues, such as cuts from the tiny shards of glass and inhaling small bits of fiberglass.

Fiberglass is considered a favorite garage insulation choice due to its combination of affordability, ease of installation, and overall effectiveness. Fiberglass provides good thermal resistance, helping regulate garage temperatures and minimize heat transfer. Additionally, fiberglass is moisture-resistant, reducing the risk of mold or mildew formation.

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