Whole-house fan with blown-in cellulose insulation
I have been working on installing attic baffles in my attic in preparation to blow in cellulose insulation to a height of 18″ to achieve ~R60 for the majority of the attic. Per my calculations and manufacturer specs, my attic has 14 square feet of net free exhaust area 50 feet of ridge vent and 18 soffit vents.
I would like to install a Triangle Engineering whole house fan that requires 11 square feet of exhaust venting. My concern is whether or not the whole house fan will interact with the blown in insulation? Most websites state that it should not be an issue, but I saw a posting here at GBA saying otherwise.
If I frame around the fan with plywood/rigid foam and meet the exhaust requirement, do I have to worry about the blown cellulose going into the ridge vent? If I run the fan while I’m up there and observe dust and cellulose being kicked up, what are my options?
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