Warm roof design
Happy new year!
This site an amazing help! I have a question regarding warm roof construction.
I’m in the process of making a low pitched warm lean to(mono pitch) roof. After watching the videos and reading the articles on this site, I feel that I have a design I’m happy with.
1/2 ply sheathing
weather proof barrier
2 layers of XPS(readily available in my area)
2×4 battens secured to framing
Metal roofing secured to battens.
If possible, I want to avoid laying another layer of ply on top of the battens. Is there any reason this is needed? I have attached a simple illustration(pdf) of the design.
Any info would be greatly appreciated!!