Roof Steel Frame Construction Details

A frames are tall symmetrical frames requiring only one type of rafter to be constructed.

Roof steel frame construction details.

B shape and dimensions in accordance with gypsum association fire resistance and sound control design manual page 14 as shown at left. Steel framing offers marketing advantages because consumers recognize steel as a superior framing product for its fundamental characteristics. And the line length measurement from the roof peak to the building wall is the hypotenuse. Materials a light gauge steel meeting the physical and galvanization requirements of a s t m.

Steel framing is easier to handle because steel studs weigh 1 less than wood studs and can be installed at 4 on center. Column a structural element that usually carries its primary loads in compression or tension parallel its axis. Wall cladding or sheeting roof cladding or sheeting rake or gable trim eave strut end wall girt sidewall girt purlin rigid frame end wall frame portal frame framed openings x bracing roof x bracing ridge cap valley multiple span columns mezzanine. Metal should not be re bent once it has been formed nor should it be folded back on itself.

Having a manual for warm flat roof construction with details and a summary of rules to follow helps. 13 30 box gable 13 endlap rain carrying table 14 eaves 15 16 ridges 16 18 gables 18 19 flying gable 20 endwall 21 sidewall valley 22 gambrel transition 23 outside corner 24. The rise or height of the roof at its peak is the altitude of the triangle. A gable is an extended section of roof that extends from one wall perpendicular to the roof.

The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. When a metal roofing sheet. Aluminum and steel roofing and siding sheets are rollformed from hardened tempered metal for maximum strength. Available flanges of 1 1 4 and extra wide 1 1 2.

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Published by the american institute of steel construction. The parts of this building include. For additional stability you can also use steel joists that are built into one or both of the walls.

Hover over the orange circles on the building below to see the names of each building element. The run or half the building span is the base of the triangle. If a sheet must be bent a gentle 90 degree bend is the maximum recom mended.