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    Construction Performance Guidelines

About the Guidelines

These helpful guidelines outline work and material deficiencies in new homes and residential condominium units covered under the statutory warranty [...]

Wood or Hardboard or Panel-Type Siding is Bowed or Wavy

Article Number

4.1

Condition

WOOD OR HARDBOARD OR PANEL-TYPE SIDING IS BOWED OR WAVY

Acceptable Performance/Condition

Siding shall be installed to accommodate thermal movement and anticipated shrinkage of the structure to which it is attached. Siding shall be free from bows and waviness when installed in accordance with the manufacturer’s specifications. Where local distortion is caused by bowed framing, the deviation of the bow shall not exceed 20 mm from the specified plane.

Warranty

Two-Year - Cladding Detachment, Displacement or Deterioration. · Defects in materials, work or design supplied by the homeowner or damage resulting from improper maintenance are excluded from the statutory warranty.

Action

Bowed or wavy siding exceeding the acceptable condition shall be repaired.

Remarks

Siding that is intended to have paint and/or sealer requires regular inspection and maintenance to ensure continuity of the protective layer. Elevated moisture levels can cause wood or hardboard siding to bow. Varying lighting conditions can exaggerate minor variations in siding profile and texture. Minor waviness due to normal fluctuations in humidity is acceptable. See Also: 3.2 WALL IS BOWED

  

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