Division B
Acceptable Solutions

Part 5 — Environmental Separation

Section 5.2. Loads and Procedures

(See Appendix A and Part 10.)

5.2.1. Environmental Loads and Design Procedures

5.2.1.1. Exterior Environmental Loads
1) Intent StatementAbove ground climatic loads shall be determined according to Subsection 1.1.3.
2) Intent StatementExcept as provided in Sentence (3), below ground exterior environmental loads not described in Subsection 1.1.3. shall be determined from existing geological and hydrological data or from site tests.
3) Intent StatementWhere local design and construction practice has shown soil temperature analysis to be unnecessary, soil temperatures need not be determined. (See Appendix A.)
5.2.1.2. Interior Environmental Loads
1) Intent StatementInterior environmental loads shall be determined in accordance with good practice as described in Sentence 6.2.1.1.(1) based on the intended use of the space. (See Appendix A.)
5.2.1.3. Environmental Load and Transfer Calculations
1) Intent StatementCalculations related to the transfer of heat, air and moisture and the transmission of sound shall conform to good practice such as that described in the ASHRAE Handbooks.
2) Intent StatementFor the purposes of any analysis conducted to indicate conformance to the thermal resistance levels required in Article 5.3.1.2., soil temperatures shall be determined based on annual average soil temperature, seasonal amplitude of variation and attenuation of variation with depth.
3) Intent StatementWind load calculations shall conform to Subsection 4.1.7.

5.2.2. Structural Loads and Design Procedures

5.2.2.1. Determination of Structural Loads change beginand Effectschange end
1) Intent StatementWhere 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.)
2) change beginExcept as provided in Article 4.1.8.18., thechange end structural loads referred to in Sentence (1) change beginand their related effectschange end shall include
a) dead loads transferred from structural elements,
b) wind, snow, rain, hydrostatic and earth pressures,
c) change beginearthquake effects for post-disaster buildings, depending on their intended function (see Appendix A),change end
d) live loads due to use and occupancy, and
e) loads due to thermal or moisture-related expansion and contraction, deflection, deformation, creep, shrinkage, settlement, and differential movement.

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3) Intent StatementWhere 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.
5.2.2.2. change beginDetermination ofchange end Wind Load
(See Appendix A.)
1) Intent StatementThis 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
a) subject to wind load, and
b) required to be designed to resist wind load.
2) Intent StatementExcept 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 change beginArticle 4.1.7.1.change end
3) Intent StatementWhere 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.
5.2.2.3. Design Procedures
1) Intent StatementStructural design shall be carried out in accordance with Subsection 4.1.3. and other applicable requirements in Part 4.