Roofs Framing (construction)

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a construction worker roofing home in phoenix, arizona.



a roof being framed in united states circa 1955


roofs built provide sloping surface intended shed rain or snow, slopes ranging 1:15 (less inch per linear foot of horizontal span), steep slopes of more 2:1. light-frame structure built inside sloping walls serve roof called a-frame.


roofs covered shingles made of asphalt, fiberglass , small gravel coating, wide range of materials used. molten tar used waterproof flatter roofs, newer materials include rubber , synthetic materials. steel panels popular roof coverings in areas, preferred durability. slate or tile roofs offer more historic coverings light-frame roofs.


light-frame methods allow easy construction of unique roof designs; hip roofs, example, slope toward walls on sides , joined @ hip rafters span corners ridge. valleys formed when 2 sloping roof sections drain toward each other. dormers small areas in vertical walls interrupt roof line, , topped off slopes @ right angles main roof section. gables formed when length-wise section of sloping roof ends form triangular wall section. clerestories formed interruption along slope of roof short vertical wall connects roof section. flat roofs, include @ least nominal slope shed water, surrounded parapet walls openings (called scuppers) allow water drain out. sloping crickets built roofs direct water away areas of poor drainage, such behind chimney @ bottom of sloping section.







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