San Francisco : Architect and Engineer, Inc · leaf 191
T •■•■■■■rT vtiimiauimm^ p JOINTS NEVER BREAK A JOINT DIRECTLY NES OF HEARTS | ?ELOW CENTEB-I.INES OF HEAR DON T HIT THE NAIL AGAINAfTEn THE HEAD IS FLUSHWITH FACE OF THE SHINGLEDONT CRUSH THE WOOD NAILS SHOULD NEVER BE MORE THAN 2 INCHES ABOVE FLAT GRAIN SHINGLES IN GRADES NO. 2 AND NO. 3 THE… … A FORCE OF 85 POUNDS IS REQUIRED BEFORE A PROPERLYNAILED CEDAR SHINGLE OF AVERAGE WIDTH CAN BEPULLED FROM A ROOF, SHOWING REAL WIND RESISTANCE THE CORRECT SIDE LAP AND PROPER BREAKING OF JOINTSIS IMPORTANT, BUT EASILY ACCOMPLISHED ARCHITECT AND ENGINEER
Architecture · Building
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