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4.1.6.2.(1)
OS2OP2
ObjectiveOP2 Structural Sufficiency of the Building
Attribution
Application
Application 1: 
Formula for calculating the specified snow load on roofs and other building surfaces subject to snow accumulation.
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A and to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9] that are required to be designed in accordance with the requirements of Part 4.
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Intent
Intent 1: 
To limit the probability that the calculation of snow load will not take into account all the factors that affect the accumulation and distribution of snow on roofs or other building surfaces subject to snow accumulation, which could lead to the excessive deformation of, or excessive stress in, structural elements, which could lead to damage to the building.
Intent 2: 
To limit the probability that the ground snow load and associated rain load values will not be compatible with the geographic characteristics by directing Code users to Sentence 1.1.3.1.(1) [Appendix C], which could lead to the excessive deformation of, or excessive stress in, structural elements, which could lead to damage to the building.
Intent 3: 
To limit the probability that the calculation of snow load used for the design will not take into account the level of reliability appropriate for deflection serviceability, which could lead to the excessive deformation of, or excessive stress in, structural elements, which could lead to damage to the building.
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