New home: wall design help please
Ok, so we probably should have worked out the details on this sooner, but here goes....
We have a new home under construction, the framers are sheeting the roof as we speak. We are in the PNW (zone 4c) and have 2x6 walls. They were designed and engineered with studs on 16 inch centers. I wish we had 24 inch centers, but did not want to go back to engineering. They are sheeted with 7/16 plywood. The current plan is to use Tyvek Drainwrap, an inch of rigid foam, a 3/8 inch rain screen, and either fiber cement board or cedar faced plywood cladding. When looking through the details for wall/windows and flashing on GBA, every one I found shows the foam acting as both sheathing and water resistant barrier. So it got me to wondering: is my wall design fundamentally flawed? Do I need a WRB if I have foam? Will it cause problems to do it this way, or is it just redundant? And finally, where can I find details drawings for the window flashing for MY wall? I am going to do the exterior envelope myself, so any help would be greatly appreciated.
Posted Tue, 12/03/2013 - 12:01
Other Questions in Plans Review