Timber Roof Framing Terminology

Terminology timber framing page 1 terminology timber framing roof structures note.

Timber roof framing terminology.

What was once a pole or timber is now a milled board typically a 1 by 6 or larger for houses hence today s use of the term ridge board. A bearing timber spanning an area to which a ceiling is fixed to the underside only. Like individual slices in a bread loaf bents extend completely through. Horizontal timbers used to support floors and ceilings.

The primary vertical timbers in a timber frame. Terminology timber framing system terminology. In the 17th and 18th centuries ridge piece and ridge pole were used respectively to designate a horizontal timber or a pole at the ridge of a roof. An axe like tool with its blade at right angles to its handle used to shape or dress timbers.

What s the difference between a bent and bay system and a post and beam system. Framing terms knowing the basic vocabulary is a necessary part of your work as a builder. The most commonly used joinery in timber framing systems. Collar ties rafter ties tension beams structural ridge beams.

A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework. Series of timbers that are used to support roofs. A diagonal piece of timber used to support beams. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams.

Some of these can support the roof and prevent ridge sagging and wall spreading. Key timber frame terminology. Below is a list of terms related to the timber frame industry. In the following section we ll cover some of the more common roof and rafter terms you ll need.

Timber framing can be confusing if you re unfamiliar with the terminology used. It is a waterproofing layer made of regular felt stacked above the solid. Common timber frame terms adze. Roof features associated with basic roof framing terms are shown in figure 2 2.

A bearing timber forming part of a suspended timber floor to which the floor boards are nailed to the top and a ceiling may be attached beneath or 2 ceiling joist. Each bent forms an end wall in a bay. Roof framing terms are related to the parts of a triangle. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.

The mortise is the notching into a. Wood used in. A 45 degree flat edge planed or routed along the outer or leading edges of a timber.