These rest on wooden wall plates and are designed to span the walls of the house.
Roof wall plate size.
Roof design depends on a number of factors including the type of covering you are going to use and the span over which the roof structure is to be supported.
Fixings used to connect the roof structure to the wall plate should be specified according to the roof construction and exposure of the site.
As the mortar does not bond the wall plate to the wall steel straps are used to ensure that the roof structure remains secure.
Gable roof plate top layout.
When constructing a gable roof the ceiling joists are laid out slightly differently.
For electrical boxes crowded with wires you may want a wall plate with greater depth.
This will provide extra room for the wires making installation easier.
More often than not the roof structure is assembled from a series of roof trusses.
The picture below shows the ceiling joist starts 50mm away from the brickwork gable wall.
A second layer of dimensional lumber is always fastened to the top plates of the erected.
This is to let the common rafter fit in between later.
Despard wall plates also known as interchangeable wall plates or stacked wall plates are a type of space saving wall plate popular in homes built pre 1950.
Generally wall plates are in lengths of not less than 3 m.