Name: Division B: Part 9: Housing and Small Buildings
Author: Guides Team

9.18.1. General

9.18.1.	General
9.18.1.1.	Application This Section applies to crawl spaces whose exterior walls have less than 25% of their total area above exterior ground level open to the outdoors.
9.18.1.2.	Foundations Foundations enclosing crawl spaces shall conform to Section 9.15.
9.18.1.3.	Heated and Unheated Crawl Spaces Crawl spaces shall be considered to be heated where the space is used as a hot air plenum, contains heating ducts that are not sealed and insulated to minimize heat loss to the space, or is not separated from heated space in accordance with Section 9.25. Heating of heated crawl spaces shall conform to Section 9.33. Insulation, an air barrier system and a vapour barrier shall be installed in the walls of heated crawl spaces in accordance with Section 9.25.