Timber Roof Framing Terminology
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.
Timber roof framing terminology. A diagonal piece of timber used to support beams. Framing terms knowing the basic vocabulary is a necessary part of your work as a builder. What s the difference between a bent and bay system and a post and beam system. Collar ties rafter ties tension beams structural ridge beams.
Wood used in. Like individual slices in a bread loaf bents extend completely through. The primary horizontal support timbers in a timber frame. Some of these can support the roof and prevent ridge sagging and wall spreading.
Horizontal timbers used to support floors and ceilings. Key timber frame terminology. A 45 degree flat edge planed or routed along the outer or leading edges of a timber. Each bent forms an end wall in a bay.
Terminology timber framing system terminology. Terminology timber framing page 1 terminology timber framing roof structures note. Roof features associated with basic roof framing terms are shown in figure 2 2. In the following section we ll cover some of the more common roof and rafter terms you ll need.
It is a waterproofing layer made of regular felt stacked above the solid. 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. The primary vertical timbers in a timber frame. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
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. The most commonly used joinery in timber framing systems. Below is a list of terms related to the timber frame industry. Roof framing terms are related to the parts of a triangle.
The mortise is the notching into a. 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. An axe like tool with its blade at right angles to its handle used to shape or dress timbers. 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.
Timber framing can be confusing if you re unfamiliar with the terminology used. A bearing timber spanning an area to which a ceiling is fixed to the underside only. The simplest form of pitched roof consisting of rafters inclined at 30ยบ.