Events d'aeration de batiments

Numéro de référence:
A93
Catégorie de norme:
Norme nationale du Canada - Norme canadienne
Type d’activité d’élaboration de normes:
Nouvelle version
Statut:
En cours d'élaboration
Date de début de la période de commentaires OEN:
Date de fin de la période de commentaires des OEN:
Affiché le:

Porté:

Note: Scope updated August 28, 2018 as per a request from the responsible SDO. (NOI originally published to CNS on April 17, 2017)

This Standard gives minimum requirements for ventilators used in buildings which are designed to permit venting of unoccupied spaces to the exterior so as to minimize the unwanted accumulation of condensation, moisture, and heat gain in the building component or assembly.  These include:

 

a)            Natural airflow ventilators for buildings

b)            Mechanically operated ventilators or air turbine ventilators for buildings

 

This Standard includes the physical, performance, and marking requirements.  It also includes Appendices giving recommendations for installation of ventilators to ventilate buildings spaces, a guide for determining net ventilating area, recommended properties of exterior apertures of ducted forced-air ventilation systems, and the mitigation of ingress of fire embers in areas of high fire risk.

Raison d’être du projet

The third edition of standard CAN3-A93-M82 Natural airflow ventilators for buildings was published in 1982. Since that time, the content of the standard has remained unchanged and the standard was reaffirmed numerous times by the CSA Technical Committee on Ventilators for Buildings, most recently in 2003. In 2008, the CAN3-A93-M82 standard was withdrawn and it ceased to undergo regular maintenance and review by industry experts. As a result, some of the content of the CAN3-A93-M82 has become outdated and some of the provisions in the standard are no longer appropriate for modern products. Despite being withdrawn, CAN3-A93-M82 continues to be referenced in the NBCC 2015 edition, and is used heavily in the certification of building ventilation products. As the standard becomes increasingly outdated, it is becoming difficult for producers to meet the specified requirements, leading to certification delays. A new edition of the standard is required to bring it in line with current industry needs and ensure it reflects recent technological advances

Note : L’information ci-dessus a été recueillie et est diffusée par le Conseil canadien des normes (CCN) pour les besoins de son système de notification centralisé et transparent pour l’élaboration de nouvelles normes. Le système permet aux organismes d’élaboration de normes (OEN) accrédités par le CCN et aux membres du public d’être informés des nouveaux travaux d’élaboration de normes au Canada. Il donne aussi aux OEN accrédités la possibilité de repérer et de résoudre les cas de doubles emplois éventuels dans les normes et les travaux de normalisation.

Les OEN sont eux-mêmes responsables du contenu et de l’exactitude de l’information présentée ici. Cette information n’existe que dans la langue dans laquelle elle a été fournie au CCN.