WebJun 11, 2024 · The average recommended level is 17 inches of R60. How deep is R60 cellulose? In temperate coastal areas such as Zone 3, attic insulation of at least R30 up to a maximum of R60 is recommended. For loose-fill cellulose, this translates to a total depth ranging from 8 inches up to 16 inches. What is the average thickness of attic insulation? WebNov 11, 2024 · Beside above, how much Atticat insulation do I need? Fiberglass and cellulose insulation have R-values of 2.9 to 3.8 per inch while sprayed foam insulation can go as high as 8.0 per inch. According to the U.S. Department of Energy, it’s recommended that attics have an R-38 to R-49, or about 12 to 15 of fiberglass or cellulose insulation.
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WebJan 12, 2024 · When it comes installing cellulose, the usual advice is to “pile it on.” Cellulose rated at R-60 is about 16 or 17 inches deep. Cellulose rated at R-100 is about 27 or 28 inches deep. That’s a lot of cellulose — so much, in fact, that some builders ask, “Is my drywall ceiling going to sag?” Recommendations of drywall manufacturers Web8 rows · Recommended insulation levels for retrofitting existing wood-framed buildings. … can a tree survive a split trunk
What is the R-Value of 10 inches of blown insulation?
WebJan 30, 2009 · Cellulose insulation has an R value of approximately 3 to 3.5 per inch. So we have between R36 and R56 in the attic. The depth varies quite a bit because we have attic trusses and a floor in the attic. The floor … WebApr 19, 2011 · Here are the R-values per inch of the most common types of insulation: Fiberglass ... Cellulose (blown): 3.1 – 3.8; Rock Wool (loose): 2.2 – 3.3; Foam (sprayed): 3.6 – 8.2; As you can see, there’s some variation in R-value depending on the particular type and brand of products used. Depending on where you live, it’s recommended that ... WebJan 4, 2024 · “Cellulose is usually about 3.5 R-value per inch, where fiberglass is about 2.5 R-value per inch,” says Taylor Webb, a construction consultant and insulation expert with … can a tree bleed