Truss clusters for maximum strength this image shows a cluster of three trusses tied together.
Brace attic trusses.
This is done by plumbing the truss and securing as described above for the first gable end.
Temporary bracing this is used to restrain the trusses during erection.
Truss stability bracing this is permanent bracing which holds the trusses upright straight and prevents any out of plane buckling of the members.
Bracing the second gable end is advisable.
Use a hammer to knock the bottom end loose.
The remainder of the trusses should.
See product data sheet no 3 for more information.
Begin with the second gable end truss and work back towards the first gable end.
In from the gable end and brace it to the deck.
The help of a second or third person is necessary even to lift a truss onto a single story roof.
Then work away from the braced end filling in the open 8 to 12 ft.
Brace other rafters as they are installed down the roof by nailing temporary 2 by 4 supports to rafter edges and to roof joists if rafters are being installed separately.
Nail them to the rafters and angle nail the center support to the top edge of the horizontal brace.
Install 2x4s at a 45 degree angle.
The functions of roof bracing roof bracing performs three distinct functions.
Alternatively start the first truss 8 to 12 ft.
Nail these temporarily to the outside edges of the rafter sides starting with the third truss.
Start several trusses in.
Trusses form the roof line on buildings and provide support for the lumber that holds shingles or other form of roof cover.
Section last after permanently bracing the rest of the trusses.
Cut a 2 by 4 to fit horizontally from rafter to rafter on each truss.
Once the roof trusses are stacked into a place they can be positioned one at a time.
It is best to brace the inside of the trusses before handling them.
Some bracing provides a way to put up the trusses evenly while holding them and other bracing supports them after they are put up.
This can be done by bracing from the floor deck as shown below.
Use 1 by 4 inch boards called purlins as temporary braces for rafter trusses.
Without bracing it is almost impossible to install trusses.
Step 2 lift trusses onto roof.
To strengthen the roof system truss clustering cross bracing and wind bracing is recommended at both end of the buildings and every 20 for longer span buildings.
Cut any diagonal braces in the truss with a reciprocating saw.