Flat roof, non vented — What about furred space for slope?
I am building a non-vented flat roof in CEC zone 8/ DOE zone 3-92705. Roof structure will be structural sheathing on 12" I-joist. For slope, sheathing over 2x furring strips (1/4"/12"). I have read all the posts about various ways to insulate.
If the actual roof is something like a 2-ply SBS membrane and the insulation under the structural sheathing is a closed-cell flash-and-batt system, should I worry about the spaces between the 2x furring strips used over the structural sheathing for slope?
This space will not be vented. Will this space trap moisture?
Posted Fri, 03/14/2014 - 10:33
Edited Fri, 03/14/2014 - 11:40
Other Questions in Building Code Questions