- Condition
- FH 4.7: Cedar Shakes or Shingles Have "Bled" Through paint or stain applied by builder
- Article Type
- Freehold
- Article Number
- 4.7
- Warranty Year(s)
- One Year
- Performance
Where full-covering or opaque stains are used over cedar shakes or shingles, bleed-through of resins or extractives shall not be visible when viewed, without magnification, from a minimum perpendicular distance of 6 m under normal lighting conditions and from a normal viewing position.
- Warranty
One-Year - Work and Materials. · Damage resulting from normal wear and tear is excluded from the statutory warranty.
- Action
Cedar shakes and shingles that do not meet 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 5.7: Roof Shingles Have Blown Off
- Article Type
- Freehold
- Article Number
- 5.7
- Warranty Year(s)
- One Year
- Performance
Roof shingles shall be installed according to the Building Code and the manufacturer’s specifications.
- Warranty
One-Year - Work and Materials. · Damage resulting from acts of God is not covered by the statutory warranty.
- Action
Roof shingles not meeting the acceptable performance shall be repaired.
- Condition
- FH 5.8: Tabs on Asphalt Shingles Are Not Lined Up
- Article Type
- Freehold
- Article Number
- 5.8
- Warranty Year(s)
- One Year
- Performance
Shingles shall be installed to provide a generally uniform pattern when viewed from a normal viewing position on the ground from any given location.
- Warranty
One-Year - Work and Materials
- Action
Shingles not meeting the acceptable condition shall be repaired.
- Condition
- FH 5.9: Asphalt Shingles Not Sealed
- Article Type
- Freehold
- Article Number
- 5.9
- Warranty Year(s)
- One Year
- Performance
Asphalt shingles and self-sealing asphalt shingles shall be secured according to the Building Code.
- Warranty
One-Year - Work and Materials
- Action
Shingles not meeting the acceptable condition shall be repaired.
- Condition
- FH 5.10: Asphalt Shingle Edges Are Curled or Cupped
- Article Type
- Freehold
- Article Number
- 5.10
- Warranty Year(s)
- One Year
- Performance
Asphalt shingle edges and corners need not be completely flat. Edges and corners that curl or cup to expose the uncoloured portion of the shingle below are not acceptable.
- Warranty
One-Year - Work and Materials. · Damage resulting from normal wear and tear is not covered by the statutory warranty.
- Action
Shingles not meeting the acceptable condition shall be repaired.
- Condition
- FH 5.11: Asphalt Shingles Either Do Not Overhang The Edge Of The Roof or Hang Over too Far
- Article Type
- Freehold
- Article Number
- 5.11
- Warranty Year(s)
- One Year
- Performance
Asphalt shingles shall overhang roof edges by not less than 12 mm according to the Building Code; they shall not overhang the roof edge to the extent that they curl.
- Warranty
One-Year - Work and Materials
- Action
Shingle overhangs not meeting the acceptable condition shall be repaired.
- Condition
- FH 5.12: Shading Pattern Is Visible on an Asphalt Shingle Roof
- Article Type
- Freehold
- Article Number
- 5.12
- Warranty Year(s)
- One Year
- Performance
At installation, asphalt shingle roofs shall be installed so that any dye lot difference is minimized to provide a uniform roof appearance, when viewed from a normal viewing position on the ground without magnification by reflected light.
- Warranty
One-Year - Work and Materials
- Action
Shingles not meeting the acceptable condition shall be repaired.
- Condition
- FH 5.13: Variation In Colour After Repairs
- Article Type
- Freehold
- Article Number
- 5.13
- Warranty Year(s)
- One Year
- Performance
Shingles used in local repairs shall be of similar type, texture and colour. Variation resulting from fading or different dye lot is acceptable.
- Warranty
One-Year - Work and Materials
- Action
Shingles not meeting the acceptable condition 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 5.15: Roofing Nails are Exposed
- Article Type
- Freehold
- Article Number
- 5.15
- Warranty Year(s)
- One Year
- Performance
Roofing nails shall be covered by overlapping shingles or by sealing.
- Warranty
One-Year - Work and Materials
- Action
Roofs with nails not meeting the acceptable condition shall be repaired.
- Condition
- FH 5.18: Asphalt Roll Roofing Is Blistered But Does Not Admit Water
- Article Type
- Freehold
- Article Number
- 5.18
- Warranty Year(s)
- One Year
- Performance
Roll roofing may blister under normal weather conditions. Blisters that result in water penetration are not acceptable.
- Warranty
One-Year - Work and Materials
- Action
Roofing not meeting the acceptable condition shall be repaired.
- Condition
- FH 13.2: Roof Flash Leaks at Chimney
- Article Type
- Freehold
- Article Number
- 13.2
- Warranty Year(s)
- Two Year
- Performance
Roof flashings at chimneys shall not leak under normal weather conditions.
- Warranty
Two-Year - Building Envelope Water Penetration. · Damage resulting from improper maintenance is not covered by the statutory warranty.
- Action
Roof flashings not meeting the acceptable performance shall be repaired.
Some bleed-through of knots or other naturally occurring features can be expected in cedar shakes over time. The reoccurrence of these features through full-covering or opaque stains may be dependent on the direction the roof faces and/or exposure to sunlight.
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.
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.
The primary role of roofing is to protect the building from the weather. Slight variation in the appearance of the roof is acceptable.
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.
Adequate attic ventilation is necessary to prevent excessive solar heat buildup in the attic that can contribute to curling and cupping. Shingles on top of flashing may not adhere and can lift. See Also: 5.5 INADEQUATE ATTIC VENTILATION
The edge of the roof includes the entire perimeter of the roof including gables.
Shading variations resulting from dye lot difference are acceptable.
The primary role of roofing is to protect the building from the weather. Slight variation in the colour of the roof after a local repair may be unavoidable. See Also: 5.12 SHADING PATTERN IS VISIBLE ON AN ASPHALT SHINGLE ROOF
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
The overlying shingle must cover the nails to ensure adequate weather protection. Sealant applied to nails shall not detract from the overall uniform roof appearance.
Surface blistering of roll roofing may be caused by solar heating and humidity.
Ice buildup around chimneys can contribute to water penetration. Keeping roofs clear of heavy snow and ice is important to help prevent ice buildup. Normal home maintenance should include professional removal of heavy buildups of ice and snow. See Also: 5.4 ROOF OR FLASHING LEAKS