Wall Plate In Roof Construction

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.

Wall plate in roof construction.

The ridge is a long board at the top that the rafters are nailed to. As the mortar does not bond the wall plate to the wall steel straps are used to ensure that the roof structure remains secure. Wall plate 1 a horizontal member usually timber bolted or otherwise fixed to the top of a wall to which the roof framing is fixed. Each truss is lifted into position and fixed to the plate.

In order for all the roof components to work they must be square parallel level and fixed down properly. Wall plates and the roof structure shall be bedded and fixed to distribute and transmit loads and to prevent uplift. A trussed roof will often rest on a timber wall plate as with a conventional one. As with rafter style roofs toenailing is one of the most common ways of attaching a truss style roof to a wall plate.

Toenail a truss into the top of the wall plate by nailing through the sides of the bottom chord at a 30 degree angle. Each rafter has a small triangular section referred to as birdsmouth joints cut out of them to allow them to fit neatly over the wall plate. Trussed rafter roofs and traditional cut roofs should be supported on timber wall plates. Building a pitched roof prefabricated trusses the latter stages of construction felt battening tiling remain the same regardless of the framing method used.

Generally wall plates are in lengths of not less than 3 m. The rafter is cut so it sits down onto the wall plate which is in turn fixed down onto the inside skin of a cavity wall. The ceiling joists span from wall plate to wall plate and are sometimes bolted to the rafters to help stop the ridge dropping and the roof rafters spreading. These are typically 1 2 m long with a cranked end and are fixed to the wall plate at 2 m centres.

A second layer of dimensional lumber is always fastened to the top plates of the erected. The wall plate timbers along the top of each wall should be joined with a half lap joint where they meet. Framing in construction is the fitting together of pieces to give a structure support and shape. Framing materials are usually wood engineered wood or structural steel the alternative to framed construction is generally called mass wall construction where horizontal layers of stacked materials such as log building masonry rammed earth adobe etc.