Airtightness Water Resistance and Wind Load Resistance

Windows in Canada are expected to conform to the CSA standard, CAN/CSA-A440-M, Windows. The standard includes a window classification system that rates windows according to their airtightness, water resistance and wind load resistance characteristics. Normally, the ratings achieved by each window are marked on the window. Windows installed In houses should be identified as meeting the Ai (airtightness), Bi(water resistance), and Ci (wind load resistance) ratings of the CSA standard.

Boating Secrets Uncovered

Boating Secrets Uncovered

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