Venting Attic Over Loft
I am building a two story – well 1 story w loft with a 12:12 pitch gable roof. On the loft the ceiling pitches up to the 10 ft mark (ridge is about 14′) and on the side I have 5ft walls. So I have three mostly triangular spaces that run the length of the house (28′). I was thinking of just air vents/grills to let air in/out of these spaces – no ducts/fans etc. But am not clear on what code demands (IRC 2018) for this situation. The ceiling is 2×10 with rockwool inside and poly outside so no foam fire risk as I understand can be issue.
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