Insulating a cathedral ceiling

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Insulating a cathedral ceiling

I live in an early Lindell cedar kit home. I shan't go into the construction method but it is far from conventional. I need to add insulation and also re- roof. I was thinking of stripping the roofing and sheathing, laying down either 2x4 or 2x6 rafters, filling the bays with Thermax insulation, sheathing and re-roofing. My question is if the rafter bay is not completely filled do I absolutely have to vent the bays. I understand that the reflective coating of the Thermax is only effective when used with an air gap, but to vent the roof, because of the original construction method, would be a total pain in the behind. Any and all ideas will be greatly appreciated.
Thanks ....Dave.

Asked by Dave Hodges
Posted Thu, 01/17/2013 - 19:27
Edited Thu, 01/17/2013 - 20:04

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