Parts Of A Timber Frame Roof

Horizontal beams supported by posts and used to support the mid span of rafters to cover longer spans.

Parts of a timber frame roof.

A super basic a frame roof will require anywhere between 4 and 8 depending on the size of the rafters with plumb cuts necessary for each angle in the brace. Their function is similar to that of a fascia board however it runs parallel to the rafters on an angle at the skillion end of a gable. There is a hierarchy of timber framing at work here with trusses supporting the ridge and purlin beams. Ceiling joists are the lengths of timber or metal that the ceiling is attached to.

A composite decking made of solid materials. Rafters and purlins are sometimes used in combination. A horizontal timber or metal resting at the peak of the roof. A barge board disguises the rafters closest to the end of of a gable roof.

The hybrid roof system combines the conventional framing systems with false heavy timber beams. It resembles real wood and particularly strong and stable for bearing heavy load. A timber frame truss roof with ridge beam purlins and common rafters is a stunning combination that creates visual interest and structural complexity. These are used in large buildings like the traditional large old barns in the us.

3 06 timber frame timber flat roof 3 07 timber frame timber flat roof with parapet 3 08 timber frame lintel at window head 3 09 timber frame windows and doors jambs and cills specification within an example should 3 10 timber frame ground bearing floor insulation above slab 3 11 timber frame ground bearing floor. Above these components is a rack of common rafters. The rafters and trusses are connected to the ridge board for a cohesive framework. 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.

Very simple trusses work on a principle of thirds. The sloping timbers include. Trusses the slanting timbers forming the triangular framework at gables and roof braces slanting beams giving extra support between horizontal or vertical members of the timber frame herringbone bracing a decorative and supporting style of frame usually at 45 to. Principal rafters form the sloping gable roof line on each bent.

This horizontal member otherwise known as a ridge beam or ridge plate connects the bents at the apex of a timber frame gable. Ridge beams are not always required and may be omitted in some structures. Roof support timbers that extend upward from the wall plate to the topmost ridge beam are called rafters.