Low-slope roof Climate Zone 6
Climate zone 6 entertaining roof options. Any concerns with performance or compliance of this assembly?
5/8″ Gypsum Board
3.5″ service cavity (with fiberglass R-13 Batts)
14″ TJI sloped to 3/8:12 (with blown in fiber glass R-53)
Henry VP100 self adhered membrane
2 layers 3/4″ furring strips (one layer vertical, one horizontal)
1/2″ Advantech **
Peel and Stick roof membrane
For the wall assembly I decided on 3/4″ rainscreen, Henry VP100 self adhered membrane, 1/2″ Advantech, 2×6-2×4 double stud with blown in fiberglass R38, Intello membrane, 1/2″ Gypsum board
If the roof works the idea is tying the wall/roof membranes together similar to the “Perfect Wall House”
**I considered Densdeck but don’t know if it can be installed over furring strips or requires a solid underlayment.
I searched section 9 in the IRC but couldn’t find specifics. If I omit overhangs on the roof, is a parapet required?
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