Draft Details

Designation:S505
Source:CSA
Review start date:Aug 8, 2019
Review end date:Oct 8, 2019
Contact email:ken.phu(at)csagroup.org
Draft Scope/Description:

Scope and Application

1.1 General

This Standard addresses risks to Northern infrastructure due to wind, snow, and snow drifting.  It incorporates various themes, all in the context of Canada’s North and climate change:

weather data, climate variables, and relevant projections and forecasts

reduce risk of damage

climate adaptation strategies

Improve function and accessibility

design construction techniques

1.2 Application

This standard provides guidance to Northern infrastructure designers, builders, operators, and owners to address the increased risk of damage to the built environment including potential effects of climate change – specifically, risks from higher and more frequent wind loads and from associated snow drifting. 

1.3  Exclusions

This Standard does not address:

uniform snow load on existing roofs covered under CSA S502

decommissioning of buildings subjected to snow or wind overload

Detailed design of Infrastructure

1.4 Terminology

In CSA Standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability.

  Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

  Notes to tables and figures are considered part of the table or figure and may be written as requirements.

  Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

 

 

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