Thread: Layered fiberglass batt different R value than loose fill ?
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Old 07-02-2009, 06:52 PM
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Jerry Peck Jerry Peck is offline
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Re: Layered fiberglass batt different R value than loose fill ?
This is why there is no way of knowing what the R-value is for a given number of inches of loose fill fiberglass without knowing the manufacturer and the number of bags/square foot coverage: ColoradoENERGY.org - R-Value Table

R-Value Table
- Fiberglass Blown (Attic) R/Inch = 2.2 to 4.3

That is a pretty darn big spread in R-value per inch.
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