CE 3.1: Leaks Due to Snow or Rain Driven Into Building Through Louvres, Grilles or Vents

Vents, grilles and louvers must be designed and constructed to prevent the entry of rain, snow and insects into the building (unless they are designed to accommodate such penetration and incorporate drainage). Vents, grilles and louvers shall be installed in accordance with the Ontario Building Code.

One -Year – Ontario Building Code Violations. Two -Year – Building Envelope Water Penetration. Water penetration resulting from improper maintenance or an act of God is excluded from the statutory warranty

Defective material or improper installation resulting in water penetration into the building shall be repaired.

Under some conditions, slight amounts of precipitation may be driven into roof vents, grilles and louvers and may subsequently dry without causing damage. This condition is warranted only where there is a demonstrated defect in work or materials supplied by the builder that result in water damage or ponding.