| 5.2.2.1. |
Determination of Structural Loads and Effects
- Where materials, components or assemblies that separate dissimilar environments or are exposed to the exterior, or their connections, are required to be designed to withstand structural loads, these loads shall be determined in accordance with Part 4. (See also Subsection 2.2.5. of Division C.)
- Except as provided in Article 4.1.8.18., the structural loads referred to in Sentence (1) and their related effects shall include
- dead loads transferred from structural elements,
- wind, snow, rain, hydrostatic and earth pressures,
- earthquake effects for post-disaster buildings, depending on their intended function (see Note A-5.2.2.1.(2)(c)),
- live loads due to use and occupancy, and
- loads due to thermal or moisture-related expansion and contraction, deflection, deformation, creep, shrinkage, settlement, and differential movement.
- Where materials, components or assemblies that separate dissimilar environments or are exposed to the exterior, or their connections, can be expected to be subject to loads or other effects not described in this Subsection or in Part 4, such loads or effects shall be taken into account in the design based on the most current and applicable information available.
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| 5.2.2.2. |
Determination of Wind Load
(See Note A-5.2.2.2.)
- This Article applies to the determination of wind load to be used in the design of materials, components and assemblies, including their connections, that separate dissimilar environments or are exposed to the exterior, where these are
- subject to wind load, and
- required to be designed to resist wind load.
- Except as provided in Sentence (3), the wind load referred to in Sentence (1) shall be 100% of the specified wind load determined in accordance with Article 4.1.7.1.
- Where it can be shown by test or analysis that a material, component, assembly or connection referred to in Sentence (1) will be subject to less than 100% of the specified wind load, the wind load referred to in Sentence (1) shall be not less than the load determined by test or analysis.
- Except as provided in Sentence (5), the wind uplift resistance of membrane roofing assemblies shall be determined in accordance with the requirements of CAN/CSA-A123.21, "Dynamic Wind Uplift Resistance of Membrane-Roofing Systems."
(See Note A-5.2.2.2.(4).)
- Membrane roofing assemblies with proven past performance for the anticipated wind loads need not comply with Sentence (4).
(See Note A-5.1.4.1.(5).)
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