Do manufactured rafter vents provide adequate ventilation?
For a simple gable roof, insulated amply with rock wool on the ceiling plane, in a cold snowy climate (upstate NY).
Are premanufactured baffles adequate ventilation channels at the eave? I have seem product spec sheets saying a 1.4″ channel – I need to measure them myself to confirm.
A lot of what I have read says 2″ minimum. Without special ordering something expensive, to get 2″ it seems I would need to rip down some rigid foam insulation and construct things myself in place.
Thanks for any advice, Nathan
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