Gearing up to do this exact project in my house. Prep this week boxing all the recessed light cans, installing proper vents in the bays where soffits vents are, etc. Also putting insulated AC hose on the bathroom fan to the roof vent to prevent the moist air from condensing when it hits the cold air in the attic space. From all I have read, this Atticat system is almost fun to do. (as usual, the devil is in the prep work...) Matt, how much did your heating/cooling costs change?
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