[Clause 5.1.4.1.(4)(a)] Design for resistance to deterioration and structural loads such as:

• the structural loads identified in Part 4,
• air pressure loads imposed on air barrier systems,
• wind up-lift imposed on roofing, and
• hydrostatic pressure imposed on protection from moisture in the ground.

This applies to building materials, components, assemblies and their interfaces described in Sentence 5.1.2.1.(1) that are installed in buildings to which Part 5 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 5].

[Clause 5.1.4.1.(4)(b)] Common building materials, components and assemblies, which are subject to applicable individual structural loads, and the installation of such elements in building assemblies and their interfaces described in Sentence 5.1.2.1.(1) that are installed in buildings to which Part 5 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 5].

This also applies to cladding assemblies installed on buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9] where:

• the cladding assembly is not addressed in Section 9.27., or
• the cladding assembly does not comply with the prescriptive requirements of Section 9.27.

[Clause 5.1.4.1.(4)(a)] To expand the application of Subsection 5.2.2. to include individual loads that are not mentioned in Sentence 5.1.4.1.(3).

[Clause 5.1.4.1.(4)(b)] To exempt common materials and their installation from having to be structurally designed for individual applicable loads (those that are not mentioned in Sentence 5.1.4.1.(3)) in accordance with Subsection 5.2.2., if there is sufficient evidence of proven past performance over a period of several years.