Hi All, I am hanging ijoists from a ledger for a porch project. I am going to demo the stucco and attach the ledger(PT) to CMU. My question is Do you use a membrane behind the ledger like a lot of people do on deck ledgers? Or is that just if you are using non PT lumber.
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Go tight to CMU, no worries. It will be flashed from above and will never see water. Ledgers on decks get wet, so different precautions are taken.
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