King, Charles A. (Charles Albert), b. 1865 · New York, Cincinnati [etc.] American book company · leaf 139
ctly straight,is necessary. 80. Dome roof.—Inboarding a dome roof, itis the usual custom tolay the boards ver-tically, as shown inFig. 117, as it ismore economicalthan to cover ithorizontally, since by the latter method each course ofboards has to be cut to a different sweep, causing a greatwaste… … Fig. 117. — boakdingRoof. BOARDING IN. OUTSIDE FINISH 125 In laying out the boarding for a dome roof vertically, theelevation of the dome, acb, should be drawn, and points1, 2, 3, etc., marked at any convenient distance upon thesurface of the dome. These points should be projectedto the diameter of…
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