Metal Building Insulation Fiberglass That Holds Its R-Value
Fiberglass is the material most metal buildings are insulated with, sold in nominal R-values from roughly R-8 in a single faced layer up to about R-38 in layered or high-R systems. The number printed on the blanket, though, is rarely the number the building keeps. Drape a 6-inch R-19 blanket over bare purlins and the … Read more