Baffling and blocking
The trusses are up, so now I have a better idea of what I am dealing with in my attic. First off, all attic spaces will be ventilated and there will be no HVAC up there and few penetrations (no can lights!).
For the “regular” attic, I plan for R-40 or so with blown cellulose (could be more, but that’s my minimum goal). At the exterior wall top plate, I have 20-24″ of heel, so a lot of space. However, I want to prevent the insulation from getting into the soffits and stopping any windwashing. So, with 24″ on center trusses, what is my best (easiest, cheapest, longest lasting, most energy efficient) way of sealing this area, while letting it ventilate?
I am thinking of using SmartBaffle in the vaulted sections (will address that in a later question), and I see it can be bent to accomplish this windwashing function, but don;t know if that is the “best”. If so, I would install this so it is on the outside of the top plate, thus allowing the top plate to be insulated.
CZ 3A – Greenville, SC
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