- Condition
- FH 5.2: Roof Appears Wavy
- Article Type
- Freehold
- Article Number
- 5.2
- Warranty Year(s)
- One Year
- Performance
- Roof sheathing shall be sized and installed in accordance with the Building Code.
- Warranty
- One-Year - Work and Materials. Two-Year - Ontario Building Code Violations
- Action
- Roof sheathing not meeting the acceptable performance shall be repaired.
- Condition
- FH 5.3: Leaks Due To Snow Or Rain Driven Into The Attic Through Louvres Or Vents
- Article Type
- Freehold
- Article Number
- 5.3
- Warranty Year(s)
- One Year
- Performance
Attic vents shall be installed in accordance with the Building Code, and prevent the entry of rain, snow and insects.
- Warranty
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.
- Action
Defective material or improper vent installation resulting in water penetration shall be repaired.
- Condition
- FH 5.4 : Roof or Flashing Leaks
- Article Type
- Freehold
- Article Number
- 5.4
- Warranty Year(s)
- One Year
- Performance
Roofs and their flashings at intersections shall prevent water penetration and shall be installed in accordance with the Building Code.
- Warranty
One-Year - Ontario Building Code Violations. Two-Year - Building Envelope Water Penetration. · Water leakage resulting from improper maintenance or an act of God is excluded from the statutory warranty. Secondary damage to property or any personal injury resulting from the water penetration is also excluded from the statutory warranty. Water penetration may occur during extreme weather conditions.
- Action
Defects allowing water penetration through the roof or any associated flashings shall be repaired.
- Condition
- FH 5.5: Inadequate Attic Ventilation
- Article Type
- Freehold
- Article Number
- 5.5
- Warranty Year(s)
- Two Year
- Performance
Attics shall be ventilated in accordance with the Building Code.
- Warranty
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.
- Action
Attics not meeting the acceptable condition shall be repaired.
- Condition
- FH 5.6: Ice Buildup on the Roof
- Article Type
- Freehold
- Article Number
- 5.6
- Warranty Year(s)
- One Year
- Performance
Roofs and attics shall be constructed with sufficient ventilation (if designed to include ventilation), air sealing and thermal insulation to minimize ice buildup on roof surfaces.
- Warranty
One-Year - Work and Materials One-Year – Ontario Building Code Violations Two – Year – Ontario Building Code Health and Safety Violations • A complete list of “CONDITIONS NOT COVERED UNDER WARRANTY” is on p.15 of the Guidelines.
- Action
Ice buildup resulting from a Building Code violation or a defect in work or materials supplied by the builder shall be repaired.
- Condition
- FH 5.14: Uneven Roof Sheathing Causing Visible Irregularities in the Roof Surface
- Article Type
- Freehold
- Article Number
- 5.14
- Warranty Year(s)
- One Year
- Performance
Asphalt shingle surfaces need not be completely flat. The roof sheathing shall provide an even surface free from thickness variations, holes, and debris that produce visible irregularities in the finished roof. The roof shall be viewed from a normal viewing position on the ground without magnification by reflected light.
- Warranty
One-Year - Work and Materials
- Action
Roofs not meeting the acceptable condition shall be repaired.
- Condition
- FH 5.17: Water is Trapped Under Roofing Membrane
- Article Type
- Freehold
- Article Number
- 5.17
- Warranty Year(s)
- One Year
- Performance
Water shall not become trapped under built-up or single-ply roofing membranes.
- Warranty
One-Year - Work and Materials. Two-Year - Building Envelope Water Penetration
- Action
Roofing not meeting the acceptable condition shall be repaired.
- Condition
- FH 7.6: Exhaust Fan Duct Terminates in Attic or Crawl Space
- Article Type
- Freehold
- Article Number
- 7.6
- Warranty Year(s)
- Two Year
- Performance
Exhaust fans shall be ducted to the exterior in accordance with the Building Code.
- Warranty
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.
- Action
Exhaust fans not meeting the acceptable performance shall be repaired.
- Condition
- FH 8.4: Condensation In Attic Space
- Article Type
- Freehold
- Article Number
- 8.4
- Warranty Year(s)
- Two Year
- Performance
- Condensation may occur in attics but these occurrences should be infrequent and without any adverse effect on the building.
- Warranty
- 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.
- Action
- Adequate ventilation equipment shall be installed in accordance with the Building Code.
- Condition
- FH 8.7: Insufficient Insulation
- Article Type
- Freehold
- Article Number
- 8.7
- Warranty Year(s)
- One Year
- Performance
Performance/Condition: Insulation shall be installed in accordance with the Building Code.
- Warranty
One-Year - Work and Materials. Two-Year - Ontario Building Code Health & Safety Violations
- Action
Insulation levels not meeting the acceptable condition shall be repaired.
- Condition
- FH 8.8: Heating, ventilating or air conditioning (HVAC) systems not installed properly
- Article Type
- Freehold
- Article Number
- 8.8
- Warranty Year(s)
- One Year
- Performance
- HVAC appliances shall be installed to meet the manufacturer’s specifications and the Building Code. Ductwork and piping shall be joined and supported to maintain joint integrity.
- Warranty
- One-Year - Work and Materials.Two-Year - Ontario Building Code Health & Safety Violations.Two-Year - Heating Delivery and Distribution SystemsDamage resulting from alterations, deletions or additions by the homeowner, or improper maintenance, is excluded from the statutory warranty.
- Action
- Where builder-supplied and installed appliances, ductwork and piping do not meet the acceptable performance, repairs shall be made.
During high wind pressures, precipitation may be driven into roof vents. This condition is warranted only where there is a demonstrated defect in work or material supplied by the builder.
Ice dams can cause water leakage during the winter. This condition is warranted only if the ice dam results from a demonstrated defect in work or material supplied by the builder. The homeowner must take immediate steps to prevent damage to their property and report any losses to their home insurance provider. See Also: 5.3 LEAKS DUE TO SNOW OR RAIN DRIVEN INTO THE ATTIC THROUGH LOUVRES OR VENTS 13.2 ROOF FLASHING LEAKS AT CHIMNEY
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
Ice buildup on roofs may occur when the roof surface is warm enough to melt the snow, but the air temperature is cold enough to re-freeze the melt water. The roof surface temperature may increase due to building exposure, orientation, or elevated attic temperatures resulting from the insulating effects of snow accumulation on the roof, air leakage and/or heat loss from the interior of the building into the attic space. Precipitation patterns and roof design may also contribute to snow and/or ice buildup on roofs. Where ice buildup on the roof is the result of a Building Code violation or a defect in work or materials provided by the builder, the defect shall be repaired. For a list of contributing factors to ice buildup on roofs that are regulated by the Building Code, see Appendix A7 “OBC Requirements & Construction Considerations to Minimize Ice Buildup on Roofs." Eavestroughs and downspouts should be kept clear of debris and dirt by the homeowner to ensure efficient water flow and drainage from the roof. This prevents water accumulation that can freeze and contribute to the formation of ice buildup on the roof. Cleaning these components is recommended during both fall and spring as part of the home maintenance routine. For articles in the Guidelines on conditions relating to these components, please refer to the “See also” section below. For areas in the province with frequent and heavy snowfalls, where snow removal from roofs is part of winter home maintenance, professional removal of snow accumulation can help reduce the likelihood of ice buildup and water ingress into building assemblies. For water leakage or leakage resulting from ice buildup on roofs, please see section 5.4 “Roof or Flashing Leaks.” See also: 5.4 ROOF OR FLASHING LEAKS 5.5 INADEQUATE ATTIC VENTILATION 5.22 EAVESTROUGHS OR DOWNSPOUTS NOT PERFORMING PROPERLY 5.24 SKYLIGHT LEAKS 8.7 INSUFICIENT INSULATION 13.2 ROOF FLASHING LEAKS AT CHIMNEY Appendix A7 “OBC Requirements & Construction Considerations to Minimize Ice Buildup on Roofs". Notes Words in italics are defined in the “TERMINOLOGY” section on page 19. This article was revised on May 24, 2024.
Visible irregularities shall be significant enough to suggest a defective condition. See Also: 5.1 ROOF TRUSSES OR RAFTERS ARE BOWED 5.2 ROOF APPEARS WAVY
None
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.
Several factors affect living space temperatures: a) Proper installation of insulation shall include correct placement behind electrical boxes, backing studs, corner framing and wiring, and around window and door openings. b) Directional orientation - north-facing rooms are generally cooler than south-facing rooms. c) Windows - glass has little insulating value and allows more heat to escape from the room. d) Rooms over garages - have insulated floors that lose heat to the unheated garage below. e) Airflow - free airflow from the supply outlet in a room to a return inlet or undercut door is essential. Generally, a minimum 25 mm space under interior doors above the finished floor covering should be provided.