Roof Sill Plate

Joist hangers can help you mount each rafter to the house.

Roof sill plate.

A rotten sill plate is a common occurrence in old houses and a big problem. Cut through the nails that hold the studs to the sill plate in the area it will be removed with a reciprocating saw. The second joist should still be 600mm to the center and so on so that the plasterboard. Rotted ledger boards or sill plates must be replaced to prevent structure failure.

Gable roof plate top layout. Sill plates a lower wall plate which is bolted or strapped securely to the top of a foundation wall or concrete slab. The sill plate or piece of wood that secures the supports to the roof should sit flush to the top edges of the roof support columns. Velux c01 c04 c06 shingle roof aluminum deck mount skylight flashing kit.

A sill plate sits on top of the foundation and serves as the structural base for the floor joist frame. The sill plate usually a treated 2 by 8 board rests flat on top of the foundation and the ledger board usually a 2 by 10 board rests upright on top of the sill plate in an upright position. Cut the section of sill plate that needs removed with the saw. These hold the house down against heavy winds.

The picture below shows the ceiling joist starts 50mm away from the brickwork gable wall. Sill plates are made from treated wood since they are exposed to the masonry foundation. Measure and mark the top plate of the walls on either side of your structure running in line with the proposed roof s ridge every 24 inches. The sill is the piece of wood closest to the ground either on a foundation or piers and is usually a timber sized board.

Step 4 position the rafters on top of the sill plate. Start from the same end on both walls so that the sets of marks are parallel. When constructing a gable roof the ceiling joists are laid out slightly differently. This is to let the common rafter fit in between later.

Step 2 stand the first truss on the end of the wall flush with the outside end of the wall. Bob vila explains how to install a sill plate or seal on top of a foundation wall.