Roof Truss Gable End Bracing

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

Roof truss gable end bracing.

The best way to find the answer to your specific situation is to call your truss designer to discuss the gable end bracing details for your project. However for design wind pressure lateral deflection of such studs without lateral bracing may still be enough such that the ceiling will attempt to act as a brace. Turn the truss upside down and place on corner on the roof surface. Nail braces vertically every 4 feet along the top and bottom of a gable truss.

Begin with the second gable end truss and work back towards the first gable end. The top and bottom of the gable end so that lateral loads are transmitted into the roof and ceiling diaphragms by the use of horizontal braces making connections between horizontal braces and retrofit studs by the use of straps and connecting the bottom of the gable end to the wall below to. Wind bracing should be placed at 30 60 angles. The use of full height wall studs from floor to roof line might be considered to eliminate the need for bracing top of wall below gable endwall.

Once the roof trusses are stacked into a place they can be positioned one at a time. This is done by plumbing the truss and securing as described above for the first gable end. Trusses which are not braced or which are not braced correctly are subject to toppling over or collapse. In the attic go to the gable end and examine the area where the triangular wall meets the rectangular wall below.

There are several methods for making these types of connections. Lifting trusses higher than one story may require a crane. Stagger top and bottom cord bracing so the lumber ends on different trusses for additional rigidity as you work your way down the building. The images below show these critical components and their recommended placement.

Article from structure magazine. It is very important that the contractor or homeowner responsible for truss erection read through all documents inside the job packet. Gable end walls need to be well connected to the wall below and to the roof structure or ceiling diaphragm. Bracing the second gable end is advisable.

The truss designer may suggest using l braces along the length of the individual verticals or horizontal braces that must be stabilized with a diagonal brace that extends into the diaphragms see figure 2.