How many inches of blown fiberglass insulation is r38?
|R-Value||Minimum Thickness||Bags per 1000 Sq Ft|
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In this regard, how many inches of insulation is r38?
An R-38 fiberglass batt should be approximately 12 inches thick, while the thickness of cellulose insulation of a finished, fitted product will larger.
Likewise, what is the R value of 12 inches of blown insulation?
|R-value of Materials and Depths|
|Fiberglass blown (attic)||2.2 - 4.3||26.4 - 51.6|
|Fiberglass blown (wall)||3.7 - 4.3||44.4 - 51.6|
|Mineral Wool (batt)||3.1 - 3.4||37.2 - 40.8|
Likewise, how many inches of blown insulation is r40?
Blown and batt insulation have different r-values based on depth. R-25 is approx. 7 inches of blown insulation R-40 is 12 inches of blown insulation.
How many inches of blown fiberglass insulation is r60?
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.