How To Cross Brace Roof Trusses

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

How to cross brace roof trusses.

Without bracing it is almost impossible to install trusses. Then nail the brace securely to the other trusses. Nail braces vertically every 4 feet along the top and bottom of a gable truss. When several trusses are in place nail the end of the brace over the second gable end truss.

Use a t brace to support the truss vertically. It is very important that the contractor or homeowner responsible for truss erection read through all documents inside the job packet. The remainder of the trusses should be braced with 1x4s. Stagger top and bottom cord bracing so the lumber ends on different trusses for additional rigidity as you work your way down the building.

Install 2x4s at a 45 degree angle. Slide the rest of the truss up using a 2x4 as a ramp if necessary. Turn the truss upside down and place on corner on the roof surface. Lifting trusses higher than one story may require a crane.

The rafters are nailed to the vertical supports but those supports are not laterally braced. Step 3 brace first truss to ground. Using the same 24 inch on center measurements that you marked on the wall plates earlier mark each truss for bracing. Drive no less than two 16d galvanized nails through the brace at each floor joist.

The cross braces sit on top of the vertical supports but are not fixed to it they are nailed at each end to rafters. For a full explanation of the western wood truss association recommendations download the full. The flooring joists appear to run the full width of the roof laterally bracing the rafters. You can see the two diagonal braces on the underside of the deck floor joists.

Some bracing provides a way to put up the trusses evenly while holding them and other bracing supports them after they are put up. Trusses which are not braced or which are not braced correctly are subject to toppling over or collapse. Visual 3d description of lateral anchor and bottom bracing. Be sure the nails have the proper coating to match the treated lumber you re using to prevent corrosion.