Housewrap/Drainage Plane Behind Fiberfaced Polyiso or in Front?
I am about to begin residing my house. I was wondering what everyone’s input was on where the housewrap should go in this case.
House is located in North NJ (zone 5-6 border).
-Framing is 2×4
-Fiberglass Batt Insulation R-13 in studs
-Polyiso 1.5″ (fiberglass faced polyisocyanurate)(permeability <1.0) less than 1.0 according to a buildingscience article. Design & Construction Option 1: -Vinyl Siding -Polyiso 1.5″ (permeability <1.0) -Housewrap (Tyvek or Dow)(Drainage Plane) -1/2″ Plywood -2×4 Studs (Fiberglass Batt Insulation R13) Design & Construction Option 2: -Vinyl Siding -Housewrap (Tyvek or Dow)(Drainage Plane) -Polyiso 1.5″ (permeability <1.0) -1/2″ Plywood -2×4 Studs (Fiberglass Batt Insulation R13) I am still a bit unsure of where the housewrap/drainage plane should be in my particular situation. Thoughts/comments?
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