11.3.16 Sheathing boards
Sheathing boards shall be durable and suitable for their intended purpose.
Where they are required, sheathing boards should be:
- of a suitable strength and quality
- compatible with the frame
- attached using suitably specified and durable fixings.
Sheathing boards contribute to many functions critical to the performance of the system and building and cannot be easily replaced, so should comply with Technical Requirement R3.
Timber frame backing walls
Sheathing boards to volumetric units with a timber frame backing wall should be in accordance with Clause 6.2.7.
Light steel frame backing walls
Sheathing boards should be appropriate for the exposure of the building and suitable for use in humid conditions.
Sheathing boards to volumetric units with a light steel frame backing wall should be in accordance with Clause 6.10.20.
Last updated: 2nd January 2025