R11 3 1/2 in Unfaced Insulation

PART R11U

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A high-quality fiberglass batt or roll used in residential construction for thermal and acoustical insulation of walls, ceilings and floors.

Unfaced insulation is manufactured in increased widths to permit friction-fit installation in wall cavities.

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For California Residents:

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov