Window installation details
I wanted to get some advice on installing the windows in a house with exterior rigid foam. The walls will be standard wood construction with OSB sheathing. We are going to install 3/4” rigid foam over the OSB sheathing with Tyvek over the foam. A rain screen will be built over the Tyvek using 1 x 4 furring strips for the fiber cement siding. I planned on installing a 2 x 4 flat against the OSB sheathing around the window openings so that the windows will sit flush with the siding and provide a solid surface for nailing the windows. The rigid foam and Tyvek will butt into the side of the 2 x 4. Flashing tape will be installed over the window flange and the 2×4 to the Tyvek. The outside edge of the 2×4 will be flush with the outside edge of the 1 x 4 furring strip so the trim and siding boards can be installed up to the windows. Will this design work? Is there a better/easier way to install the windows?
Climate Zone is 2a, hot humid.
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