R-25 rigid insulated roof deck with cold metal roof above question
Zone 6 remodel in design phase. If anyone has links to similar design pics/blog building a cold/insulated roof it would be much appreciated.
Insulating roof deck to R-25 or greater with combo of reclaimed rigid foam.
I would like to then create a vent space (my question), followed by Plywood, then metal roofing.
What is the best way to create the vent space and how deep does it need to be (roof pitch varies 7 to 9).
is a criss cross pattern of 1×3 screwed to rafters followed by another horizontal to the ridge the best approach?