Gable Roof Truss Bracing

Gable end walls need to be well connected to the wall below and to the roof structure or ceiling diaphragm.

Gable roof truss bracing.

Wind bracing truss clusters at both gable ends and at least every 20 add wind bracing green for truss clusters. Then nail the brace securely to the other trusses. There are several methods for making these types of connections. The remainder of the trusses should be braced with 1x4s.

Applicable to all trussed rafter roofs unless rigid sarking such as timber boarding or plywood is used. When several trusses are in place nail the end of the brace over the second gable end truss. Lifting trusses higher than one story may require a crane. Turn the truss upside down and place on corner on the roof surface.

The webs are studs oriented vertically and usually spaced at 12 16 or 24 in. Gable end bracing retrofitting gable ends to improve their resistance to hurricanes the following prescriptive methods are intended for applications where the gable end wall framing is provided by a wood gable end wall truss or a conventionally framed rafter system. It is best to brace the inside of the trusses before handling them. Install 2x4s at a 45 degree angle.

The images below show these critical components and their recommended placement. Bracing for roofs that are approximately square. Gable end walls and the roof sheathing at the gable end can take a tremendous beating during a hurricane and if not properly attached and braced they fail. Bracing for roofs less than 6 6m wide on detached or staggered stepped buildings.

The number of trusses clustered depends on building span and truss spacing. Manufactured gable ends are actually frames even though they are often referred to as trusses. In the attic go to the gable end and examine the area where the triangular wall meets the rectangular wall below. Use a t brace to support the truss vertically.

Nail braces vertically every 4 feet along the top and bottom of a gable truss. Wind bracing should be placed at 30 60 angles. The gable end frame is designed to transfer vertical loads from the roof to the continuous bearing wall below. Slide the rest of the truss up using a 2x4 as a ramp if necessary.

Bracing for larger roofs.