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Air-seal around all plumbing and piping installed through walls, ceilings, and flooring adjacent to unconditioned space to prevent air leakage.
Right - The pipe penetration is properly flashed and furring strips are installed on each side in preparation for installing cladding
Right - The water and air control layers are properly integrated around the hose bib
Wrong – Fibrous insulation is not an air barrier and cannot be used for sealing holes.
Wrong – These holes have been cut larger than needed, making them difficult to seal.
Wrong – These plumbing penetrations have been cut larger than needed, making them difficult to seal.