Roof Truss Gable End Bracing

View the following detail guides.

Roof truss gable end bracing.

This is done by plumbing the truss and securing as described above for the first gable end. This type of failure is shown in figure 7. Wind bracing truss clusters at both gable ends and at least every 20 add wind bracing green for truss. The completed gable end bracing accomplished using the steps outlined below should look like the light colored framing shown in the picture below.

If so the building designer might design a balloon framed end wall which eliminates the need for a gable end truss. Run over minimum 3 trusses. Click on gable end overhangs for suggestions concerning additional bracing issues for gable roof overhangs. Flange at each gable brace connection to strongback gable end truss 90x45 gable brace standard truss spacing 90x45 runner over bottom chords of trusses.

Some of these standard details may be sealed upon request. Stagger top and bottom cord bracing so the lumber ends on different trusses for additional rigidity as you work your way down the building. In the photo below on the left notice that wind pressure has pulled out the bottom of the gable end triangle and partially pulled out the rectangular wall below. The top chord of the gable is dropped so that the framer can run a series of outlookers or ladders from the fascia back to the first common truss.

Attach tool box to board that will span over the space between. For more information on gable end frame bracing see the following. Fix strongback gable brace and runner as below stud wall as per nzs 3604 2011 full height brick veneer max. In some cases the expected loads will be too high for the gable end frame end wall studs or ceiling diaphragm.

To assist the building designer in determining the bracing requirements to transfer lateral loads from the gable end frame into the roof and or ceiling diaphragm many truss designers provide standard design tables and details based on typical design assumptions used by building designers figure 12. Strengthen the gable end wall studs. Contact mitek engineering support for any questions. Height 5 5m on gable end wall clause 1 1 2 o nzs.

When winds blow against the gable end they push it towards the interior of the house and push up on the roof overhanging the gable end. Connections at the base of the gable wall. Roof truss repair details. Begin with the second gable end truss and work back towards the first gable end.

Truss clusters for maximum strength this image shows a cluster of three trusses tied together. Brace the top of the gable end wall by tying it to the rafters or tops of the trusses. First the most common type of failure is loss of roof sheathing from the gable end that results in the gable wall loosing its bracing along the top edge. Bracing the second gable end is advisable.