Question: How are you venting your roof? Or are you venting it at all? Vapor drive from inside the cabin will go where?
I love your design and I'm envious (in a proud for you kinda way)!
Thanks for your comments. This issue has vexed me for some time and there seem to be two schools of thought as far as an insulated "cathedral" ceiling. I'm going with the non vented school of thought.
I have done quite a bit of research as you can imagine and it seemed to me that in my application it was difficult to work out some kind of vent on a single sloping roof without it allowing some kind of rain water incursion. Had I used shingles instead of a metal roof I think venting - so the roof wouldn't get do hot in the summer - would have been more important.
So basically my roof is going to be similar to the walls in the house... two barriers and two sheathing layers encapsulating a layer of insulation space. It is based on several proven designs that I have seen... I certainly hope it works...
"When I say ever thing I mean ever thing." - Frankie
