Roof Strut Spacing

Standard roof truss spacing.

Roof strut spacing.

The trusses should be a little longer than the exact width to allow for overhang and you will need sufficient trusses to mount across the length. Typical roof truss. Rafters have a tendency to flatten under gravity thrusting outwards on the walls. 4 5 maximum for both sheet and tile roof.

These standards are as follows. Maximum supported roof area 5 4m 2. The spacing between rafters in a given building is part of the engineering calculations that determine the required structure of the roof. Struts should be adequately supported over studs in timber walls.

They should have anti slip blocks where necessary to prevent them sliding horizontally. Maximum strut spacing 2 1m. 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. Follow this guide to ensure the spacing and stability of your diy roof trusses.

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. To determine how many trusses to create you will first need to measure both the width and the length of the structure you are building. Sheet roof tile roof strut length.

Maximum supported roof area 7 0m 2.