Parts Of A Timber Roof Frame

A horizontal timber or metal resting at the peak of the roof.

Parts of a timber roof frame.

Rafters are sloped beams that run from the roof s ridge to the eaves. Rafters have a tendency to flatten under gravity thrusting outwards on the walls. The rafters are not framed into the plate but are simply nailed to it. They provide the support for the external roofing material.

The rafters are really functional parts of both the walls and the roof. Roof sheathing material is usually plywood or oriented strand board osb that is just under half an inch. Pairs of opposing rafters were thus initially tied together by a horizontal tie. The entire roof frame is covered in a thin piece of wood called decking or roof sheathing.

This video covers one of the most exciting parts of roof framing installing rafters. A 45 degree flat edge planed or routed along the outer or leading edges of a timber. Also called minor rafter because it is smaller than the principal rafter major rafter. A non structural member of the truss where rafters can lean against and connect to.

For larger spans and thinner walls this can topple the walls. The rafters and trusses are connected to the ridge board for a cohesive framework. The wall and the roof. Part of a roof s frame a ridge board runs horizontally along the peak of a sloped roof.

Each bent forms an end wall in a bay. Ridge beams are long rectangular rigid pieces of wood metal or stone which are placed horizontally along the ridge of the roof. Like individual slices in a bread loaf bents extend completely through. Queen truss parts explained.

Some are cut to fit the plate whereas others in hasty. A short piece of timber that keeps the ends of struts and rafters in place. Key timber frame terminology. Wondering how to build the structure of your roof.

Decking is supported by the roof frame and the layers of a roof which we cover below and all rest on top of the decking. Essentially the spine of a conventional stick framed roof the ridge board is sandwiched between the meeting ends of the roof rafters. Wood used in. The structural relationship between the rafters and the wall is the same in all types of roofs.

Trusses usually occur at regular intervals linked by longitudinal timbers such as purlins. A composite decking made of solid materials. It resembles real wood and particularly strong and stable for bearing heavy load.