Roof Strut Spacing

Follow this guide to ensure the spacing and stability of your diy roof trusses.

Roof strut spacing.

Rafters have a tendency to flatten under gravity thrusting outwards on the walls. Maximum supported roof area 7 0m 2. The roof truss spacing standard is important because eighty percent of new homes are built with standard pre fabricated trusses. Other relevant factors include the type of wood being used for the rafters the size of the rafters and the load that the rafters need to support.

This means that if you re in charge of repairing or installing roofing trusses you ll be expected to hold to these standards. Sheet roof tile roof strut length. Typical roof truss. These standards are as follows.

The spacing between rafters in a given building is part of the engineering calculations that determine the required structure of 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. The struts are needed in the roof frame to transfer the loads from underpurlins and other beams to the load bearing walls. Struts should be adequately supported over studs in timber walls.

Maximum supported roof area 5 4m 2. Standard roof truss spacing. Maximum strut spacing 2 1m. 4 5 maximum for both sheet and tile roof.

They should have anti slip blocks where necessary to prevent them sliding horizontally.