Structural Steel Roof Framing Details

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Structural steel roof framing details.

Lightweight steel framing architectural design guide preface this publication is intended as a guide for designers speci ers and users of lightweight steel framing lsf. Standard details for metal roofing siding post frame and residential structures distributed by. Structural steel the structural elements that make up the frame that are essential to supporting the design loads e g. The strength and ductility of structural cold formed steel cfs framing along with the holding power of cfs connections make it the ideal material for construction in high wind speed and seismic.

In most modern construction things like trusses and other large framing elements are assembled offsite and then transported to the building site. That structural failures often begin with the roof. Steel framing is a practical code approved solution to many of the limitations that builders face today when using traditional building materials. Winds can remove roof coverings from the roof sheathing tear roof sheathing from supporting framing see figure 7 4 and rip roof framing from supporting walls.

Structural shapes standard steel configurations produced by steel mills such as wide flanges channels angles pipe tubes etc. Cfs light frame construction g500 11 guidelines for inspecting cfs structural framing in low rise buildings g800 12 astm standards for cfs g801 13 astm a1003 no cause for rejection g802 13 aisi section a2 2 other steels g900 15 design methodology for hole reinforcement of cfs bending members j100 11 cfs floor joists. R7 roof eave and soffit detail r8 rafter and joist bridging r9 collar tie at rafter detail r10 rafter brace connection detail r11 roof framing with wood tail extension r12 wood truss bearing on steel wall r13 collector block detail r14 non aligned roof wall framing r15 hip beam miscellaneous. Lsf products are cold formed structural members used as studs joists rafters purlins and girts and in assemblies such as steel roof trusses and panelized walls.

Beams columns braces plate trusses and fasteners. Domestic roof construction is the framing and roof covering which is found on most detached houses in cold and temperate climates. It does not include for example. Steel and aluminium are recyclable and unlike timber are often cut to the correct size before they reach the building site reducing waste.

Details for conventional wood frame construction the first approach to achieving a strong durable struc ture involving economical use of materials is to follow a. Post disaster evaluations of coastal buildings damaged during high wind events have consistently shown.