Roof Assembly for Post-and-Beam House
I am building a post and beam house in New Brunswick, Canada next summer. I have decided not to use SIP for the roof because of potential problems down the road. I will be using 3 layers of 4” Sopra-XPS thermal insulation panels on top of T/G pine boards. Attached is a picture of the structure. To properly seal the roof from leaking, I plan to put an ice and water self adhesive membrane on the pine boards. Then start laying down 3 layers of 4” insulation panels. OSB will be placed on top of the final insulation panel. Then 1” strapping and steel roofing. Is the ice shield membrane in the right place or should that go on last before strapping? Any suggestions/comments?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part