Bracing Garage Roof Trusses

1 the elements of roof bracing.

Bracing garage roof trusses.

Fix restraint straps where necessary. Product data sheet sheet no 4 may 2007 fig. They are designed to withstand vertical pressure but not horizontal pressure. Temporary bracing is required to temporarily stabilize the trusses until the permanent bracing can be applied.

Small trusses can be installed by a crew of two to three workers. Outside view of garage showing roof line truss orientations and brace orientation. To allow high level bracing to be fixed without injury install safe and secure temporary access. Truss stability bracing this is permanent bracing which holds the trusses upright straight and prevents any out of plane buckling of the members.

With some planning portions of the temporary bracing can be left in place and will function as permanent bracing. Roof trusses must be handled gently and from the top down. However installation of trusses longer than 60 feet requires a professionally engineered bracing system. Wind bracing truss clusters at both gable ends and at least every 20 add wind bracing green for truss clusters.

Fix all high level bracing as per the roof detail. Wind or wall bracingthis bracing is installed in the roof in addition to the truss stability bracing and its purpose is to stabilise the gable walls under the action of wind loading. These braces hold the end trusses vertically plumb until they can be secured to the walls and braced against the other trusses on the roof. 04 follow these final steps to ensure the trusses are braced correctly and safely.

Permanent lateral bracing system roof fully recessed purlins and bottom chord continuous. The images below show these critical components and their recommended placement. The number of trusses clustered depends on building span and truss spacing. Diagonal rafter bracing should be approximately 45 to the rafters on plan.

Bracing for larger roofs. Internal trusses are sometimes braced temporarily with boards nailed diagonally between trusses. Small structures such as sheds and garages often get lateral bracing end to end with. Fix lower bracing as per the roof detail.

Bracing for roofs that are approximately square. Wind bracing should be placed at 30 60 angles.