Electrical outlets and switches shall be installed in accordance with manufacturer’s specifications and the Ontario Electrical Safety Code.

Two-Year - Delivery and Distribution Systems. · Damage resulting from improper maintenance or additions, deletions or alterations made by the homeowner is excluded from the statutory warranty. · Secondary damage caused by defects, such as property damage or personal injury, is excluded from the statutory warranty.

Electrical outlets and switches not meeting the acceptable performance shall be repaired.

Test the operation of electrical outlets and switches during the PDI and record damage on the PDI Form, to avoid any dispute about whether the damage was caused by the builder. Check the electrical circuit panel when a receptacle or switch fails to work. See Also: 7.2 GROUND-FAULT CIRCUIT INTERRUPTER (GFCI) TRIPS FREQUENTLY

Electrical circuits shall be installed in accordance with the Ontario Electrical Safety Code.

Two-Year - Delivery and Distribution Systems. · Damage resulting from improper maintenance or additions, deletions or alterations made by the homeowner is excluded from the statutory warranty. · Secondary damage caused by defects, such as property damage or personal injury, is excluded from the statutory warranty.

Electrical circuits not meeting the acceptable performance shall be repaired.

Circuit breakers protect electrical wiring from overloading. Frequent tripping of circuit breakers or blown fuses could result from faulty appliances and should be investigated. Some appliances have special power requirements. Care should be taken not to overload or bypass electrical circuits. Personal injury or fire can result. Typical household wiring is installed to accommodate residential electrical loads. Specific requirements should be discussed with the builder prior to installation.

Asphalt shingles and self-sealing asphalt shingles shall be secured according to the Building Code.

One-Year - Work and Materials

Shingles not meeting the acceptable condition shall be repaired.

Asphalt shingles installed in temperatures below 5°C will seal when warmer temperatures return. In the short term, unsealed shingles should not affect the weather protection provided by the roof. Where asphalt shingles intersect metal flashing, shingles may not seal. This condition is not a defect in work and materials.

Shingles shall be installed to provide a generally uniform pattern when viewed from a normal viewing position on the ground from any given location.

One-Year - Work and Materials

Shingles not meeting the acceptable condition shall be repaired.

The primary role of roofing is to protect the building from the weather. Slight variation in the appearance of the roof is acceptable.

Roof shingles shall be installed according to the Building Code and the manufacturer’s specifications.

One-Year - Work and Materials. · Damage resulting from acts of God is not covered by the statutory warranty.

Roof shingles not meeting the acceptable performance shall be repaired.

Severe weather and wind gusts can sometimes exceed the design limitations of the shingles. Different shingle types and materials have varying abilities to resist these forces.

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.

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.

Ice buildup resulting from a Building Code violation or a defect in work or materials supplied by the builder shall be repaired.

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.

Attics shall be ventilated in accordance with the Building Code.

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.

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

Roofs and their flashings at intersections shall prevent water penetration and shall be installed in accordance with the Building Code.

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.

Defects allowing water penetration through the roof or any associated flashings shall be repaired.

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

Attic vents shall be installed in accordance with the Building Code, and prevent the entry of rain, snow and insects.

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 vent installation resulting in water penetration shall be repaired.

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.