Vented vs. hot roof for addition with steel roof
We are adding onto an existing 1.5 story bungalow (10:12 roof / cathedral ceiling, 4:12 dormer) which as far as I can tell is a hot roof. I see no roof vents and I don’t believe there is a ridge vent.
We are making an addition which will have a full second story, all 4:12 pitch with steel roof throughout. This will use trusses so we will get as much cellulose as we can in there, at least R60.
What would be the pros and cons doing a hot roof on the addition vs. venting to the ridge?
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