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Before and after installation of "Clean Space" matting and sprayfoam to a basement crawl space in Oshkosh, WI.
Most chimneys have an air gap around them that we seal using metal flashing and fire caulk. The chimney is then wrapped with RockWool, a product that is fire resistant, allowing our installers to blow cellulose insulation up tight to the chimney without creating a fire hazard.
Before and after; remove old fiberglass batting insulation from attic and install R60 blown in cellulose insulation to improve home comfort and efficiency.