I have an attic that I am renovating with 7 in rafters that I need to insulate to meet code. Code requires R-38 insulation. In order to get the depth need for insulation I need to widen the rafters to accept about 12in depth of fiberglass insulation and a 1 in roof vent. ( about 13 in). By adding a 2 x 6 to each rafter between the knee wall to the ceiling joist, I can get the width needed, but what is the best way to do this structually? The knee wall is not load bearing.
Crucial elements such as improved drainage, earthquake resistance, and a curbless shower enable this couple to live on the same property as family members.
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