Photo of knee wall. Source John Paul Rossie (author). Granted use by owner/photographer John Paul Rossie. This knee wall of 2 x 4 framing sits atop the rafter ends of the lower roof structure and acts as a structural brace for the higher, secondary roof that extends much further. The area now showing the 2x4 vertical framing was open prior to insertion of the knee wall. Photo courtesy of John Paul Rossie.

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