Div. B › Part 9 › 9.27 › 9.27.2 — Required Protection from Precipitation

9.27.2.2 — Minimum Protection from Precipitation Ingress

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(1) Exterior walls exposed to precipitation shall be protected against ingress of precipitation with an exterior cladding assembly consisting of a first plane of protection and a second plane of protection where the wall encloses spaces of residential occupancy or spaces that directly serve spaces of residential occupancy.

OBC Definitions

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exterior cladding

means those components of a building that are exposed to the outdoor environment and are intended to provide protection against wind, water or vapour.

occupancy

means the use or intended use of a building or part of a building for the shelter or support of persons, animals or property.

residential occupancy

means an occupancy in which sleeping accommodation is provided to residents who are not harboured for the purpose of receiving special care or treatment and are not involuntarily detained and includes an occupancy in which sleeping accommodation is provided to residents of a retirement home.

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