Building construction and superintendence, by F.E. Kidder ... (1896)
Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, W.T. Comstock · leaf 199
uperior to tin, and is verycommonly used. The roofers in Colorado claim that in that Statethere is a certain amount of alkali in the rain water which eats awaythe zinc but does not affect tin. Whether this is true or not theauthor does not know, but no zinc is used there for flashings, and… … Fig. 173- Fig. 174. Fig- i75- For slate roofs 16-ounce copper should be used, as it is much moredurable than tin or zinc, but for shingle roofs it would hardly be inkeeping. For all counter flashings built or let into mason work sheet leadshould always be specified. For open valleys on large roofs…
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