Whats the difference between rigid fiberglass board (like Owens Corning 703) and Sound Attenuating Fire Batts (SAFB)?
There are no significant differences in acoustical properties (how they absorb sound). There are two significant differences in physical/mechanical properties. 1) Density. SAFB has a density (weight) of 2.5 pounds per cubic foot, which is the most cost-effective density for absorbing sound. Higher densities absorb sound only slightly better, so they are not worth the extra cost of material in most cases. 703 is the Owens Corning rigid fiberglass board product and is commonly used for sound absorption. It has a similar density at 3.0 pounds per cubic foot, and nearly identical acoustical properties to SAFB. 2) Rigidity. SAFB is a thick batt, like a heavier version of common household insulation batts. Rigid Fiberglass board is manufactured as a relatively rigid board that holds it’s shape.
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- Whats the difference between rigid fiberglass board (like Owens Corning 703) and Sound Attenuating Fire Batts (SAFB)?
