Construction Performance Guidelines
CONDENSATION IN ATTIC SPACE
Condensation may occur in attics but these occurrences should be infrequent and without any adverse effect on the building.
Two-Year - Ontario Building Code Health & Safety Violations. · Damage caused by dampness or condensation due to failure by the homeowner to maintain adequate ventilation is excluded from the statutory warranty.
Adequate ventilation equipment shall be installed in accordance with the Building Code.
Attic spaces shall be ventilated in accordance with the Building Code. Condensation in attics may indicate either a lack of ventilation through the attic or a source of moisture within the attic space. See Also: 8.7 INSUFFICIENT INSULATION