ARCHIVED - 9.15.2.2.(1)

This information has been archived because it is outdated and no longer relevant.

Archived Content

Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards. As per the Communications Policy of the Government of Canada, you can request alternate formats on the "Contact Us" page.

9.15.2.2.(1)


Objective	OH1 Indoor Conditions
Attribution	[F20,F21,F61-OH1.1,OH1.2,OH1.3] Applies to elements that support or are part of an environmental separator.
Application	Application 1: Concrete block used in foundations for buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], where the foundations are: not subject to surcharge, and erected on stable soils with: for standard foundation construction and for buildings of wood-frame construction [see Article 9.23.1.1.] or masonry construction, an allowable bearing pressure of 75 kPa or greater, and for flat insulating concrete form foundation walls and for buildings of light-frame construction [see Article 9.4.2.1.] or flat insulating concrete form construction that are not more than 2 storeys in building height, with a maximum floor-to-floor height of 3 m, and contain only a single dwelling unit, an allowable bearing pressure of 100 kPa or greater. Exceptions: except as stated in Sentence 9.15.1.2.(1), which applies to foundations and footings for buildings erected on permafrost.
	Top of Page
Intent	Intent 1: To limit the probability that concrete block of inadequate compressive strength will be used, which could lead to: an inadequate resistance to water absorption, which could lead to excessive water absorption, which could lead to blocks cracking due to freeze-thaw stresses, or an inability to support loads, which could lead to blocks cracking. Where elements support or are part of an environmental separator, this is to limit the probability of damage to the foundation and the superstructure, which could lead to: condensation, rainwater ingress, or compromised thermal performance of components intended to provide resistance to heat transfer. This is to limit the probability of: an inadequate control of temperatures of interior spaces, relative humidity, or water ingress and accumulation, the generation of pollutants from biological growth or from materials that become unstable on wetting, or compromised integrity of the environmental separator, which could lead to the deterioration of building elements. This is to limit the probability of: negative effects on the air quality of indoor spaces, the inadequate thermal comfort of persons, and contact with moisture. This is to limit the probability of harm to persons.
	Top of Page