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скат крыши с уклоном в 26,5 градусов (Considering the construction of the roof and the weight of the trusses, the most economical pitch for a roof is about 1/4 the span, or what is commonly called a quarter pitch, the rise of the rafters being 6" in 12" or 26 degrees and 34 minutes.  chestofbooks.com) | |||
| quarter pitch: 3 phrases in 1 subject |
| General | 3 |