flightcrazed Posted March 12 Share Posted March 12 Hello, Anyone with experience putting rigid Polyiso board over sheathing and covering with Metal siding? Curious if this is a best practice (using the polyiso as WRB) or if better to put a barrier between it and the wood sheathing and/or the metal. Thanks! Shawn Link to comment Share on other sites More sharing options...
Gawdzira Posted March 13 Share Posted March 13 From the Hammer and Hand best practices https://hammerandhand.com/best-practices/manual/5-envelopes/5-4-exterior-continuous-insulation-ci-at-walls/ Link to comment Share on other sites More sharing options...
SHCanada2 Posted March 18 Share Posted March 18 Polyiso has different advice. From the link above Foil-Faced Polyisocyanurate (Polyiso) Exterior surface may be used as a WRB, with manufacturer approval. Install tape at seams per manufacturer specification. 1. Must use J-Roller on tape with good detailing to eliminate ‘Fish-Mouthing.’ 1 Link to comment Share on other sites More sharing options...
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