The following Solution Center guides provide specific guidance for sealing ducts, flues, shafts, plumbing, piping, wiring, exhaust fans, & other penetrations to unconditioned space:
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4.1 Ducts, flues, shafts, plumbing, piping, wiring, exhaust fans, & other penetrations to unconditioned space sealed, with blocking/flashing as needed
4.1 Ducts, flues, shafts, plumbing, piping, wiring, exhaust fans, & other penetrations to unconditioned space sealed, with blocking/flashing as needed