Patent ID: 7921620

Claim:
A method of affixing a window frame around a window box in a flat wall before siding panels are affixed to the wall, comprising: (a) selecting a window frame having a frame body defining a closed perimeter for the window box, the body having front and back faces and inner and outer edges, a primary channel extending along the outer edge of the frame body, and a flange extending along the outer edge of the frame body, between the primary channel and the back face; (b) placing the window frame around the window box, with the back face of the frame against the wall; (c) affixing the flange to the wall; (d) placing a first panel against the wall and inserting a vertical edge of the first panel into a primary channel of the frame; (e) affixing the first panel to the wall; (f) selecting a second panel and inserting a vertical edge of the second panel into the primary channel of the frame and engaging a longitudinal edge of the second panel with a longitudinal edge of the first panel; (g) affixing the second panel to the wall; and (h) repeating steps (d) through (g) multiple times.