Roofing Terms Explained: A Complete Guide for Homeowners

Learn the Basics of Roofing Terms and Systems

This roofing terminology guide is designed to simplify common roofing terms and help you better understand how roofing systems work. Whether you’re planning repairs yourself or hiring a professional, knowing these terms makes it easier to understand what needs to be done and why.

It also gives you greater confidence when reviewing roofing quotes and recommendations. Below are some of the most common roofing terms and their definitions.

Roof Structure Components

BATTEN

A piece of timber or metal channel installed horizontally on top of the rafters to allow sheet metal to be laid and fastened.

RAFTER

A rafter is a parallel beam that supports the roof and is part of the truss. It is the principal support for roofing material.

ROOF TRUSS

The structural framework designed to carry the loads of a roof. It covers the full span without intermediate support.

SARKING

A moisture proof foil material that is placed over the roof battens and installed beneath the external roof covering (usually tiles).

Roof Coverings & Materials

COLOURBOND

A popular steel roofing product made from a Zincalume® base for corrosion resistance, finished with protective coatings and a durable painted top layer.

BOX GUTTER

A rain gutter on a roof concealed between the slopes of a roof.

DOWNPIPE

A pipe for carrying rainwater from a roof gutter to the ground or to a drain.

ZINCALUME®

A steel roof product that is durable and strong, with superior corrosion resistance. Available in different profiles and comes only in it’s natural grey colour.