Before anyone from Northern California or Southern for that matter starts looking for 1/2 inch XPS. Don't waste your time. No one has it and no one will bring it in unless you buy 100 sheets.
Called Owens Corning and Dupont for dealers and nope...had to use 3/4 inch xps for floors.
Called Owens Corning and Dupont for dealers and nope...had to use 3/4 inch xps for floors.