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Attic Protector R- 19 Fiberglass Blown-In Insulation with Sound Barrier 109-sq ft per bag ( 25.2-lb )

Johns Manville Attic Protector R- 19 Fiberglass Blown-In Insulation with Sound Barrier 109-sq ft per bag ( 25.2-lb )

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IF I HAVE A ROOM THAT IS 24 X 26 AND I WANT TO BLOW IT 2 FEET THICK HOW MUCH WILL I NEED?


For Attic Protector, 2 feet of insulation will yield either an R-26 (11.5") or an R-30 (13.1") as shown on our coverage chart. Guessing that the 11.5" will be used, at that thickness, you will get about 73 sqft per bag for coverage. Doing a little math, you have a space that is 624sqft, and dividing that by the coverage of 73 sqft per bag, you should need approximately 9 bags (need to round up).

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