The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 155
The clauses of specifications, which apply to»materials and application,are as follow s : Pitch used shall bi pitch, which shall soften Fahr and mell al 11!l I degrees fahr . being a grade intherefrom shall have a pecific 1.105 The felt shall be Hydrex felt, manufactured bj I pole, M ass.,: i ir… … Figure I Pitch, when applied, shall be of a temperature of not less than 250 degrees fahr.The pitch shall be mopped on the surface of the masonry to a uniform thickness ofnot less than 1-16 inch. Each layer of pitch must completely cover the surface onwhich it is spread without cracks or blow…
Architecture · Building
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