Attics shall be ventilated in accordance with the Building Code.
Two-Year - Ontario Building Code Health & Safety Violations. ยท Damage caused by dampness or condensation due to failure by the homeowner to maintain adequate ventilation is excluded from the statutory warranty.
Attics not meeting the acceptable condition shall be repaired.
Roof vents should be kept free of obstructions. Inadequate attic ventilation can lead to heat and moisture problems. Snow covering roof vents can obstruct ventilation. See Also: 8.4 CONDENSATION IN ATTIC SPACE
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