ARCHIVED - 9.25.2.5.(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This information has been archived because it is outdated and no longer relevant.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.

9.25.2.5.(1)


Objective	OH1 Indoor Conditions
Attribution	[F51,F41,F63-OH1.1] [F51,F63-OH1.2]
Application	Application 1: Installation of spray-applied polyurethane insulation in walls, ceilings, roofs and floors separating heated space from unheated space, the exterior air or the exterior soil, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
	Top of Page
Intent	Intent 1: To limit the probability that the installation of spray-applied polyurethane will fall significantly below expectations with regard to: spray equipment and operating parameters, chemicals or storage conditions, application procedures (including climatic conditions), physical properties (such as density, cohesion and adhesion), and substrate type, condition and preparation. This is to limit the probability of: improperly constituted or applied polyurethane insulation, which could lead to the emission of gases, or inadequate thermal resistance, which could lead to excessively low temperatures of interior surfaces or within assemblies. This is to limit the probability of condensation, which could lead to: an inadequate control of the temperature of interior spaces or relative humidity, the generation of pollutants from biological growth or from materials that become unstable on wetting, or deterioration, which could lead to compromised integrity of assemblies acting as environmental separators. This is to limit the probability of: negative effects on the air quality of indoor spaces, and the inadequate thermal comfort of persons. This is to limit the probability of harm to persons.
	Top of Page