Roof Truss Wall Plate Detail

Pitches it is more economical to standardise the range of pitches between 15 40 degrees however trusses may be supplied outside this range.

Roof truss wall plate detail.

Toenail a truss into the top of the wall plate by nailing through the sides of the bottom chord at a 30 degree angle. 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. If the truss bundle is to be stored for more. However anchor bolt spacing must be reduced 24 in.

Each part explained in detail. 1k 2x plate flush with inside face of wall or beam. 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. In scotland 100mm x 25mm wall plates should be used in long lengths butt jointed.

A truss frame consists of a roof truss and a floor truss joined by exterior wall studs. Standard trusses can be designed up to 11 metres in 35mm timber and 15 metres in 47mm timber. Wall plates should be joined using half lapped joints at corners and in running lengths. 4 storage trusses should be stored in a stable position to prevent toppling and or shifting.

610 mm maximum because the top plate is loaded in its weak direction. I joist construction details performance rated i joists in floor and roof framing truss. Joist attachment per detail 1b load bearing wall above shall align vertically with the wall below. As an alternate to the roof truss anchor a bolted top plate may be used for the roof to wall connection see figure 5.

As with rafter style roofs toenailing is one of the most common ways of attaching a truss style roof to a wall plate. The wide variety of possible roof and floor truss designs and combinations is illustrated by figure 1. If trusses are stored horizontally the blocking should be eight to ten foot centers to prevent lateral bending. End walls may be truss framed with field assembled stud infill prefabricated in.

Spans in excess of these can be designed but are often supplied as multiple trusses fixed together. There are many types of roof trusses as wall as many types of roofs more types than there are parts. Metal plate connected wood trusses hib 91 by permission of truss plate institute inc. The roof truss structure and design is integral to roof structural integrity and shape.