Timber Roof Truss Terminology

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Timber roof truss terminology.

A push compression or pull tension acting along the length of a member. Most timber frame owners quickly learn these terms because they take great pride in their homes which are often composed of signature arrangements of posts beams trusses embellishments and other framing options. Some myths about roof rafters. A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof trusses usually occur at regular intervals linked by longitudinal timbers such as purlins the space between each truss is known as a bay.

Stubbed duo with raised ends in support areas is used at higher loads because this design is able to withstand higher roofing and snow loads than duo timber trusses. The highest point on a truss where the sloping top chords meet figures 3 4 6. Floor joist a timber or steel beam which directly supports flooring in common with other joists or a ceiling lining as a roof joist types of floor joists generally used by gte are engineered timber or metalweb joists at 600mm centres or. Truss that supports creeper trusses and creates hip roof plane.

It is the highest point and is typically used to refer to the vertex opposite some base or lowest point. This includes not only the designing manufacturing and delivery of the timber roof trusses but also the supplying and installation of various types of roof covering such as concrete roof tiles and metal roof sheeting. 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. Apex the latin geometrical term for summit peak tip top or extreme end.

Structural support of trusses usually walls normally with a timber wall plate. Roof trusses manufacturers terminology apex peak. Truss terminology typical truss layout and truss types note. Rafters are considered by the public and often by professionals to be the most cost effective roofing solution but this is a misconception.

The manufacture and erection of timber roof trusses and in the roof. Barn roof a barn roof is known as a gambrel or. Some of these can support the roof and prevent ridge sagging and wall spreading. You don t have to be a timber framing expert to be able to identify the various parts of your home s structure or to appreciate the unique beauty of its various components.

Collar ties rafter ties tension beams structural ridge beams. Bracing not shown for clarity truss that creates roof planes and does not support other trusses truss that creates hip plane by truncating and allowing hip jacks truss top chords to fly over. Truss and roof terminology apex. The highest point on a truss where the sloping top chords meet.

Rafters are a cheaper solution for roof construction. Rafters have a tendency to flatten under gravity thrusting outwards on the walls.