Applying Stucco over Foil faced foam
I am building a new home in Park City Utah at 7500 feet with an average winter high in the mid 30’s and lows in the high teens to low twenties…low humidity. I am planning to use 2” Hunter XCI
Polyisocyanurate foam core panel bonded to an impermeable foil facing material with a foil face providing an R value of 14.1. The foam is installed over tyvex and the interior walls will use a bib R23 system.
The lower portion of the house will be covered in masonry stone and the upper portion with Stucco. The stucco will be installed over the foam using a metal woven wire for the stucco to adhere to. May or may not use weather resident paper under the woven wire as it seems like overkill.
My questions are:
1) Is there issue applying stucco over foil based foam which is impermeable?
2) Do you have any suggestions regarding the Stucco prep and application?
3) Are there any issues regarding the install of the masonry stone?