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Knauf R-30 is a kraft-faced fiberglass batt for attics, walls and floors where you need R-30 of thermal resistance. The facing works as a vapor retarder and gives you a surface to staple to studs or joists. It is GREENGUARD certified for low emissions, which matters for indoor air in living spaces. Shoppers rate it 4.6 out of 5 across 252 ratings.
Lowest price we've seen: $99.99 on Nov 7 at True Value. Tracked across 3 stores since Nov 7.
Buyers rate the batts highly, mostly for fit, coverage and value. Complaints center on handling irritation and batts arriving compressed or torn.
