Venting a low-slope shed roof
We’re in final planning phases (we’re the GC) of a passive house in upstate NY climate zone 6.
The house has a shed roof with 1:12 pitch (I know not great for snow, etc)
The roof assembly is to be (from inside->out)
-Intello smart membrane
-16″ TJI with dense-packed cellulose
-Solitex Mento WRB
-2 x 4″ strapping in plane of roof
-5/8″ CDX roof sheathing
-High-temp ice and water shield
-standing seam roof (using a specially high raised seam for the low slope)
*There will be low and high soffit vents.
My question is: will the roof effectively vent with such a low slope? Is there a better way of venting it then the proposed construction assembly (presuming a 16″ TJI rafter regardless)? Is it safer to do a compact roof?
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