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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 [...]

Roofing Membrane is Defective

Article Number

3.4

Condition

ROOFING MEMBRANE IS DEFECTIVE

Acceptable Performance/Condition

Membrane system must be installed in a good workmanlike manner free from damage and shall meet the requirements of the Ontario Building Code and the design.

Warranty

One -Year – Work and Materials. Two-Year - Building Envelope Water Penetration. Damage resulting from improper maintenance or additions, deletions or alterations made by the homeowner is excluded from the statutory warranty.

Action

Membrane systems not meeting the acceptable condition shall be repaired.

Remarks

Membrane thickness, number of layers, reinforcing etc. are generally defined by the manufacturer’s specifications if not covered by the design documents. These attributes affect the durability of the system.

  

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