will spray foam insulation open or closed cell void certain manufactures warranties ?
It won’t void any roofing manufacturers’ warranties if it is in the walls and on the ceiling.
If it fills the rafter bays so you cant ventilate, it will void ALL comp.shingle warranties. The OC rep sent me the report from ASTM. I can email it too ya if needed.-Ray
Yeah send the report on over.
I would like to see it i sent you a pm with my email