Aluminum Trusses

Sheathing panels and joists are supported by aluminum trusses. Aluminum trusses and joists are always used because of their light weight. However, steel trusses and joists are used for longer spans and heavier loads. Aluminum trusses are braced in pairs at the ground level to provide lateral stability in the direction perpendicu­lar to the trusses (Figure 4.3).

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