Roof Wall Plate Size

This will provide extra room for the wires making installation easier.

Roof wall plate size.

This is to let the common rafter fit in between later. 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. When constructing a gable roof the ceiling joists are laid out slightly differently. These rest on wooden wall plates and are designed to span the walls of the house.

For electrical boxes crowded with wires you may want a wall plate with greater depth. Where trussed rafter roofs are not subject to uplift a minimum of two 4 5mm x 100mm galvanized round wire nails skew nailed one on each side of the trussed rafter or truss clips fixed in accordance with the manufacturer s instructions are acceptable. The picture below shows the ceiling joist starts 50mm away from the brickwork gable wall. Gable roof plate top layout.

Upper wall plate top plate or ceiling plate upper wall plate which is fastened along the top of the wall studs before the wall is lifted into position and on which the platform of the next story or the ceiling and roof assembly rest and are attached. More often than not the roof structure is assembled from a series of roof trusses. These are typically 1 2 m long with a cranked end and are fixed to the wall plate at 2 m centres. As the mortar does not bond the wall plate to the wall steel straps are used to ensure that the roof structure remains secure.

Fixings used to connect the roof structure to the wall plate should be specified according to the roof construction and exposure of the site.