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Existing roofed deck & retrofitting exterior insulation

SouthDakotaRoof | Posted in Green Building Techniques on

I’m in a zone 6a area where exterior insulation & rainscreens are rare. I have a crew hired to retrofit both but this is their first experience. Tomorrow they will be stripping this side and I’m sure there will be questions on just how to proceed with the fitting. May I please get some instructions on how to handle adding 2″ eps, furred out rainscreen, lp smartside and reattaching this deck with roof?

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  1. Expert Member
    Akos | | #1

    You generally want these details figured out a bit before hand. Here is an article that might help. There is no difference if it is a roof or a deck, the details are the same:

    https://www.deckmagazine.com/design-construction/framing/installing-deck-ledgers-over-exterior-insulation_o

    You can insulate the ledger underneath with spray SPF.

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