Question

 How thick is R-30 ceiling insulation?

Answer Owens Corning manufactures R-30 pink fiberglass insulation. It comes in various sizes, but the thickness for all sizes is 9/12 inch. It is available in widths from 15 1/2 inches to 24 inches and is... Read More »
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Top Q&A For: How thick is R-30 ceiling insulation

How do i cover pink insulation when the basement ceiling is too low to install a drop ceiling?

It's a good idea to cover overhead insulation in a basement area, since pink insulation is actually fiberglass. This fiberglass can fall onto a workbench or into a laundry basket over time. Keeping... Read More »
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How Thick is R25 insulation?

R25 can be many different thicknesses. It depends on the insulation product. Styrofoam SM would need to be 5" thick. Pink fiberglass would need to be about 7" thick. White (beadboard) styrofoam wou... Read More »
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How thick is r28 insulation?

An R-value indicates an insulation's resistance to heat flow. So, thickness will depend on the material used.
http://wiki.answers.com/Q/How_thick_is_r28_insulation

How thick is R-38 cellulose insulation?

The R-value is a measure of how well a substance acts as insulation. Blown-in cellulose insulation has a value of about R-3.5 to R-3.7 per square inch. So to get R-38 protection, you'll need a laye... Read More »
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