Cyclopedia of architecture, carpentry, and building; a general reference work .. (1912)
American School (Lansing, Ill.) · Chicago, American school of correspondence · leaf 427
Roof. the square for run will be 17 inches; and for the rise, whatever the roofrises to the foot of run. It should also be remembered that this is thecondition in all roofs of equal pitch, where the angle of the hip orvalley is a 45-degree angle, or, in other words, where we have thediagonal of a…
Architecture · Building
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