To fix the joists and rafters down on to the wall plates they should be toe or skew nailed to the top plate like below.
Fixing roof trusses to wall plate.
Localized damage to one or two trusses will typically not result in structural failure of the roof system but could cause the roof or ceiling to sag.
Level and nail fix both sides of the truss with a brace fixed to the structural timber on the adjacent table lift.
Align the truss to the marks you made on the wall plate.
The first thing you need to do is to assess the damage.
Wall plates should generally be in lengths of not less than 3m but shorter lengths should extend over at least 3 joists rafters or trusses.
This could lead to premature corrosion of nails and fixings.
A ledger is a horizontal board that is attached to the top of the the wall.
Roof trusses are engineered components.
The ledger is needed to properly attach the perpendicular roof trusses to the top of the structure.
These pre punched and formed galvanised steel timber connectors are ideal for.
Roof truss damage and repairs.
Walls that are constructed of concrete block that need to be covered with a roof will require the use of a ledger.
In scotland 100mm x 25mm wall plates should be used in long lengths butt jointed.
You can nail fix the truss into position using either method one opposite or method two below right.
Truss clips hold truss or rafter to the wall plate.
Wall plates should be joined using half lapped joints at corners and in running lengths.
The roof can suffer from localised condensation especially if not adequately ventilated.
If the roof truss has a small crack you will be using the two wooden boards to patch it up but if the crack is much more severe you should use the steel plates because they offer much stronger support to the damaged truss.
Faster and easier to fix than triple grip no need for left or right hand.
When damaged or altered this can effect structural integrity of th e roof system.
Set out the ceiling joists onto the wall plates the ceiling joists are installed before the rafters as they will stop the roof spreading and also give something for you to lay planks across to stand on when building the roof.
Carry the truss to the opposite end of the roof.
An alternative fixing to triple grip and multi grip in most cases for tiled roof.
Fixings used to connect the roof structure to the wall plate should be specified according to the roof construction and exposure of the site.
Otherwise setting roof trusses onto wall plates can be done by the average do it yourselfer usually in one to two days depending on the size and scope of the project.
Pre punched formed galvanised steel connector for securing timber rafters and trusses to timber top plates.
Step 1 get ready.
