Construction Performance Guidelines
EXHAUST FAN DUCT TERMINATES IN ATTIC OR CRAWL SPACE
Exhaust fans shall be ducted to the exterior in accordance with the Building Code.
Two-Year - Ontario Building Code Health and Safety Violations. • Damage resulting from improper maintenance or additions, deletions or alterations made by the homeowner is excluded from the statutory warranty.
Exhaust fans not meeting the acceptable performance shall be repaired.
Exhaust fans and clothes dryers should never be ducted into heated or unheated enclosed spaces such as basements, attics and soffits, or attached garages. Moisture buildup in these areas can cause damage.