Curious on thoughts about insulation on a new house.
Will be building a house in southern ontario, cold in the winter hot in the summer. Been reading up on insulation techniques, as i like the idea of thermal bridging but hate the idea of trapping moisture in the walls as i have seen some ugly things over the years in renovations and what moisture can do. Im unwilling to put foam board on the outside and vapor barrier on the inside. Just seems wrong. So here is my thought. Build the walls, apply a one inch foam straight to the studs with a layer of plywood fastened overtop with tyvek. Once the walls are stood i would spray foam 2 inchs with closed cell. Then after my wiring is done fill the rest of the 2×6 wall with batt insulation and drywall. Im not worried about the shear strenth of the plywood as i can add wind braces. I think the three inchs of foam would avoid a dew point. Thoughts please! Thanks for your time
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