11.2.4 Structural design checking and certification
The closed panel system shall be adequately designed and the design certified. Design of the superstructure shall be adequately checked by an NHBC registered certifier.
Closed panel timber frame
Structural design checking and certification should be in accordance with Clause 6.2.3.
Structural insulated panels (SIPs)
Structural design checking and certification should be in accordance with Clause 6.2.3 where SIPs incorporate structural timber.
Closed panel light steel frame
Structural design checking and certification should be in accordance with Clause 6.10.3.
Last updated: 2nd January 2025