Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 69
nches and thevalley is made of zinc or tin, often in long strips locked and solderedat the joints and running under the shingles from four to six inches.The defect in this method of a continuous piece of metal is that thereis no chance for the metal to expand and contract in its length, with-out… … Fig. 37. Ridge Finish, 51 44 BUILDING SUPERINTENDENCE course, is to be preferred. These are bent, and lapped in the sameway as the shingles without soldering and are free to expand andcontract without damage. In the case of the close valley the shingles are laid close to-gether at the angle and…
Architecture · Building
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