Roof Truss Lateral Support

This condition generally applies when trusses are spaced at 2 feet.

Roof truss lateral support.

Workshops warehouses industrial buildings etc. Roof trusses become necessary when sloping roofs have to be provided. The clr must be properly braced to prevent the simultaneous lateral deformation and or buckling of the series of truss members to which it is attached due to laterally imposed loads on and or the accumulation of buckling forces within the. Roof sheathing plywood osb provides effective lateral bracing when sheathing is nailed directly to top chords.

Continuous lateral bracing or restraint is very important. Continuous lateral brace clr. The images below show these critical components and their recommended placement. There are two separate types of bracing to be concerned about.

At places of heavy rainfall or heavy snowfall sloping roofs are necessary which have to be supported by roof trusses. Permanent bracing listed on the truss design drawing for specific web members and permanent bracing for the roof or floor system. In this situation the walls of a finished attic space or room would go with the roof line. A line of continuous structural members to a chord or web member of a truss to reduce the laterally unsupported length of the truss member.

Certain truss members require bracing in order to carry the full design load. The number of trusses clustered depends on building span and truss spacing. Wind bracing should be placed at 30 60 angles. Part of a truss that extends beyond its support exclusive of overhang.

At both gable ends and at least every 20 add wind bracing green for truss clusters.