Fiberglass Insulation

What are the disadvantages of cellulose insulation?

Disadvantages. Installation costs for cellulose can be higher than for fiberglass. Cellulose insulation creates an enormous amount of dust when it is installed, so a certified breathing mask is absolutely essential. Dry-blown cellulose sags and settles, reducing its R-value over time. Is cellulose insulation good for attic? Cellulose — recycled, ground-up paper with boric acid …

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Is fiberglass insulation good for attic?

Loose-fill fiberglass seems to dominate attic insulation in new-construction homes and has an R-value of approximately 2.5 per inch. If you check with the North American Insulation Manufacturers Association, they’ll assure you that fiberglass or mineral wool is definitely your best choice for attic insulation. Can you install fiberglass insulation yourself? With certain types of …

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Is fiberglass insulation heat resistant?

Fiberglass: Made of glass that is spun into fibers, then combined with plastic polymers, fiberglass insulation is naturally fire resistant. When treated with these fire-resistant chemicals, cellulose can withstand temperatures of up to 300 degrees before potentially catching on fire. Which fiber insulation will melt at a lower temperature? Fiber glass is another suitable insulation …

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Does fiberglass insulation need to be covered with drywall?

Don’t Worry About Covering Fiberglass Insulation in Unoccupied Spaces. Builders who leave existing fiberglass insulation exposed in Tampa are in compliance with building codes because as long as the insulation is undisturbed, it poses little to no health threat. The American Lung Association agrees on this point. Can fiberglass insulation touch electrical wires? Never mash …

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Is it OK to put cellulose insulation over fiberglass?

No. Even if you have moisture in your attic, once all bypasses are sealed (and/or your roof repaired by a qualified contractor, if necessary) cellulose is blown directly over the existing insulation. Adding new cellulose insulation on top of existing fiberglass insulation is called “capping”. What type of blown-in insulation is best? Fiberglass, cotton, and …

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