Taping Exterior Foam Insulation Around Window Flashing
We are almost done doing the insulation on our new house.
Walls consist of:
Blueskin + 1 1/2″ GPS foam + 1×4 strapping + siding
The decision to add insulation was done after the initial design of the house, therefore we had to use custom metal flashing around the windows to accommodate the extra thickness of insulation and to have the sidings butt against the metal.
Before installing the insulation, the top and sides seams of the windows were flashed with some quality tape.
I started taping the insulation with the metal flashing, I did that only for the top of the window, so it prevents water from leaking back towards the wall.
I am wondering if this is necessary, and also if the sides of the window should be taped with the insulation.
Let me know your suggestions!
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