Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 133
ds and for temporarypurposes shown in section by Fig. 431.. 114 CARPENTRY AND JOINERY. They are also largely used for covering theback -and side additions to all kinds ofbuildings, the spans varying from a few-feet up to 20 ft. or more. Fig. 432 is aconventional view of an ordinary lean-toroof over… … Fig. 433.—Section through Trussed Lean-to Roof for Span of 16 Feet. introduced. The span for these is unlimitedwithin reason, but, as in other forms ofroofs, the rafters should be supported bypurlins at about every 7 ft. In the largerspans for important work, framed trussesirom 8 ft. to 10 ft.…
Carpentry · Joinery
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