Construction Performance Guidelines
Article Number
Condition
EFFLORESCENCE (TYPICALLY A WHITE POWDERY FILM) IS PRESENT ON MASONRY EXTERIOR FINISHES
Acceptable Performance/Condition
Efflorescence commonly occurs on masonry surfaces and is normal. Localized concentrations of efflorescence on above grade masonry veneer walls visible from no less than 6 m may not be acceptable and may require further investigation.
Warranty
One-Year - Work and Materials. · Efflorescence resulting from additions, deletions or alterations made by the homeowner or improper maintenance is not covered by the statutory warranty.
Action
If it is determined that a defect in work or material is the cause of the efflorescence, repairs shall be made.
Remarks
Efflorescence is the formation of a typically white crystalline deposit on the surface of masonry when moisture evaporates from the surface. Efflorescence can be removed using a stiff bristle brush and water. Dark-coloured bricks tend to exaggerate the appearance of efflorescence. Localized areas of efflorescence may be linked to abnormal sources of moisture. Salt and de-icers may also contribute to efflorescence and in that case the item is not warrantable. See Also: 1.1 EFFLORESCENCE (TYPICALLY A WHITE POWDERY FILM) IS PRESENT ON CONCRETE OR MASONRY FOUNDATION SURFACES