Fiberglass Vs Cellulose Insulation For Attics

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What Does Asbestos Insulation Look Like Attic Insulation Attic Renovation Attic Rooms

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Worker Spraying Blown Fiberglass Insulation Between Attic Trusses Attic Insulation Blown In Insulation Attic Renovation

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This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to.

Fiberglass vs cellulose insulation for attics.

When tested at 110 cellulose will retain 97 of the listed r value while fiberglass loses 12 or more. Both fibreglass and cellulose are the two most inexpensive insulation products that you could use. It does not pollute the air during manufacture or use as much energy to produce as fiberglass. If you check with the cellulose insulation manufacturers association they ll assure you that cellulose is definitely your best choice for insulation.

Yes newspaper is very flammable. Fibreglass is perhaps the most common product available in the market for insulation outpacing its close competitor cellulose by 50 1. Thus creating a more energy efficient home. You can get to the same place with either material.

Overall both materials improve the energy efficiency of your home but do so in different ways. You can now purchase fiberglass batt insulation that has a combination plastic and kraft paper covering. At sub zero temps the r value of cellulose improves where fiberglass will lose half of its stated r value. Loose fill fiberglass seems to dominate attic insulation in new construction homes and has an r value of approximately 2 5 per inch.

Framing members aren t always spaced per fectly and it s awkward to fit batts into irregularly shaped cavities and around electrical wires and boxes. Cellulose insulation is considered a greener material than fiberglass and being made of paper does not pose any health issues to the installer or home occupants. Fiberglass fibers may become airborne which can be considered a pollutant. The back side usually has small perforations in the plastic to prevent the buildup of water vapor within the insulation.

Fiberglass is a suspected carcinogen. Or 7 inches of cellulose. Cellulose provides better sound insulation than fiberglass i e homes are less noisy with it. Sources many fiberglass installers fluff the fiber with extra air so you don t get as much insulation as you re supposed to.

Cellulose insulation is made primarily from recycled newspaper. Cellulose has 38 better air infiltration than fiberglass. Cellulose forms a dense continuous mat of insulation in your attic. Like cellulose you need a big machine to blow it in.

Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Assuming your current attic insulation is made from fiberglass and has a value of r 13 you d have to add roughly 10 inches of additional fiberglass to hit r 38. Blown insulation for attics. It is made from paper that has a minimum of 85 recycled content such as newspaper.

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Why Mike Holmes Likes Spray Foam Insulation With Images Home Insulation Insulation

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