Wood Roof Truss Bracing

Install 2x4s at a 45 degree angle.

Wood roof truss bracing.

Overall truss length 1maximum spacing. This condition generally applies when trusses are spaced at 2 feet. Slide the rest of the truss up using a 2x4 as a ramp if necessary. Trusses which are not braced or which are not braced correctly are subject to toppling over or collapse.

Roof sheathing plywood osb provides effective lateral bracing when sheathing is nailed directly to top chords. Often temporary bracing and permanent bracing elements are the same but in other cases less overlap in function is evident. Wind bracing truss clusters at both gable ends and at least every 20 add wind bracing green for truss clusters. Since 1978 truspro has been manufacturing roof and floor trusses for san luis obispo santa barbara ventura monterey kings kern los angeles counties.

Nail braces vertically every 4 feet along the top and bottom of a gable truss. Diagonal rafter bracing should be approximately 45 to the rafters on plan. Complete details can be found in the building component safety information guide to good practice for handling installing restraining and bracing of metal plate connected wood trusses available through wtca wood. 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.

The overall truss length refers to the overall length of the truss including cantilevers exclusive of overhangs. Bracing of trusses is extremely important. Use a t brace to support the truss vertically. The installer is responsible for proper field assembly.

Applicable to all trussed rafter roofs unless rigid sarking such as timber boarding or plywood is used. It is best to brace the inside of the trusses before handling them. It is very important that the contractor or homeowner responsible for truss erection read through all documents inside the job packet. Bracing for larger roofs.

Up to 30 10 on center 30 45 8 on center 45 60 6 on center 60 80 24 on center. Lifting trusses higher than one story may require a crane. The distinction between permanent bracing and temporary bracing has been a gray area in the wood truss industry for many years. Turn the truss upside down and place on corner on the roof surface.

Of wood trusses is such that some field assembly is required. Stagger top and bottom cord bracing so the lumber ends on different trusses for additional rigidity as you work your way down the building. Bracing for roofs that are approximately square.