Windows in Thick Walls

Placing a window in the outer third of a thick wall puts the window in the colder part of the opening and carries the risk of creating a cold microclimate in the window pocket on the interior.

When a window is placed in the center of a thick wall, special attention needs to be paid to drainage on the outside.

Locating a window away from the outside of the wall requires exterior jamb extensions made from either the trim material or exterior siding.

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