Venting a hip roof
I’m hoping someone can tell me if I’m asking for the impossible. We’re renovating an 1860’s building with a hip roof. Our intention is to insulate the roof with 6″ of rigid foam and leave the rafters exposed on the interior (meaning there will only be insulation above the existing roof deck and no sheetrock, insulation or paneling installed inside). The very narrow (approx. 5′) of ridge at the “peak” is broken up by skylights. So far only one of the 5 roofers I’ve spoken to has included any venting in his plan and he calls for prefabricated metal vents every other rafter bay.
Is there no other option? Are products such as Hipmaster, SmartRidge II, and others ineffective? Or are they not appropriate for this situation? What about a product like DCI’s RafterVent? Could this be used to allow air to flow towards a hip vent?
I’m open to any option that will work in this situation or will stop my search if you can give me a definitive, “sorry, no way, no how”.
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