Timber Roof Truss Terminology

A glossary of terms to ensure you re always in the know.

Timber roof truss terminology.

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. The highest point on a truss where the sloping top chords meet. A tapered timber member used to give a fall to flat roof areas or adjust the pitch on a roof truss. 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.

Rafters are considered by the public and often by professionals to be the most cost effective roofing solution but this is a misconception. Structural support of trusses usually walls normally with a timber wall plate. Truss that supports creeper trusses and creates hip roof plane. Some of these can support the roof and prevent ridge sagging and wall spreading.

It is the highest point and is typically used to refer to the vertex opposite some base or lowest point. Some myths about roof rafters. Rafters are a cheaper solution for roof construction. 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.

Collar ties rafter ties tension beams structural ridge beams. On the truss layout. Roof trusses manufacturers terminology apex peak. Truss and roof terminology apex.

Truss terminology typical truss layout and truss types note. The highest point on a truss where the sloping top chords meet figures 3 4 6. Rafters have a tendency to flatten under gravity thrusting outwards on the walls. 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.

Apex the latin geometrical term for summit peak tip top or extreme end. 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. Lcp roofing offers a complete turn key roofing solution. Barn roof a barn roof is known as a gambrel or.

The manufacture and erection of timber roof trusses and in the roof. 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.