Building construction and superintendence, by F.E. Kidder ... (1896)
Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, W.T. Comstock · leaf 200
lining should beat least 18 inches wide, and on roofs of less pitch at least 20 incheswide. The second method gives what is called a close vailey. Trap-ezoidal pieces of tin or zinc are cut out, usually 15 inches at the top,10 inches at the bottom, and 9 inches long for 16-inch shingles,… … AMvi i!IIH|lll|li] ^ \ Wm^A inn pearance shown at B. Close valleys look rather neater than openvalleys, and on a steep roof they make tight work, but open valleysare the more common for shingle roofs, and when the pitch is lessthan 45 degrees are the safer to use. Flashing against wooden dormers or…
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