Roof Rafter Parts

The horizontal beam connecting two rafters that intersect at the ridge.

Roof rafter parts.

The larger rafter that sits directly on a tie beam and used to carry a purlin. They vary in size depending on length and spacing. Fascia this is the trim used to cover the eaves. The bottoms of the rafters rest on the plate member providing a connecting link between the wall and the roof.

Rafters these are wooden beams that run from the top of the roof to the bottom. The rafters when combined together help to form the truss. Parts of a roof the main structural parts of a roof are ceiling joists ridge board jack rafter hip rafter common rafters creeper rafters raking plates out riggers and noggings or last rafter overhang. A piece of lumber laid horizontally on a wall to support the rafter.

Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. The first step in building the roof rafters is to cut one rafter board to length with the ends angled properly and then to mark and cut the birds mouth and seat on the rafter. Part of a roof s frame a ridge board runs horizontally along the peak of a sloped roof. Rafters rafters make up the main framework of all roofs.

The tops of inclined rafters are fastened to the ridge or another rafter depending on the type of roof. The roof on this. The central vertical post in a king post roof truss. Rafters rest on the top wall plate.

Essentially the spine of a conventional stick framed roof the ridge board is sandwiched between the meeting ends of the roof rafters. The ridge end of the rafter and often the eve end will need to be cut to the angle of the roof slope. A chief structural member as it is a load bearing wall. Measure from the eve end of the rafter board to the long point that will be the ridge of the rafter and place a mark on.

They are inclined members spaced from 16 to 48 inches apart. The rafters are really functional parts of both the walls and the roof. Things you ll need roofing calculator recommended tape measure framing square stair gauges pencil safety goggles hand saw or circular saw. Step 1 mark and cut the first rafter ends the ridge end of the rafter and often the eve end will need to be cut to the angle of the roof slope.

Truss the truss is a framework comprised of wooden beams that helps to support the roof. One of a series of diagonal members of the truss that meet at the apex in order to support the roof deck and its loads.