Wind Bracing Roof Trusses

Applicable to all trussed rafter roofs unless rigid sarking such as timber boarding or plywood is used.

Wind bracing roof trusses.

This condition generally applies when trusses are spaced at 2 feet. Wind or wall bracingthis bracing is installed in the roof in addition to the truss stability bracing and its purpose is to. They are designed to withstand vertical pressure but not horizontal pressure. Diagonal rafter bracing should be approximately 45 to the rafters on plan.

Truss stability bracing this is permanent bracing which holds the trusses upright straight and prevents any out of plane buckling of the members. Bracing for roofs that are approximately square. Bracing for larger roofs. Roof sheathing plywood osb provides effective lateral bracing when sheathing is nailed directly to top chords.

Wind bracing truss clusters at both gable ends and at least every 20 add wind bracing green for truss clusters. Small trusses can be installed by a crew of two to three workers. The images below show these critical components and their recommended placement. Bracing of top chords sloping top chord of roof trusses must resist compression force due to gravity downward load on the roof such as snow load.

Wind bracing keeps the roof trusses upright and square to the roof basically they stop the roof from being blown down when its being constructed but more importantly when its tiled. See product data sheet no 3 for more information. The functions of roof bracing roof bracing performs three distinct functions. Temporary bracingthis is used to restrain the trusses during erection.

However installation of trusses longer than 60 feet requires a professionally engineered bracing system. Bracing for roofs less than 6 6m wide on detached or staggered stepped buildings. It braces a roof laterally and diagonally.