Pre-cut blankets of fluffy insulation material installed between wall studs and ceiling joists.
Batt insulation consists of flexible blankets or rolls of insulating material, typically fiberglass or mineral wool, sized to fit between standard wall studs and floor joists. It is one of the most common insulation types used in residential and light commercial construction. R-value per inch varies by material, with fiberglass batts typically achieving R-3 to R-4 per inch.
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