PERFORMANCE GUIDELINES: 1. FOUNDATION/BASEMENT

1.1 Efflorescence on Concrete or Masonry Surfaces

Efflorescence is the formation of a white crystalline or powdery deposit on the surface of concrete and masonry when moisture evaporates from the surface.

Visible efflorescence is an indication that moisture has moved from the material to its surface. A certain amount of initial post-construction efflorescence is a normal condition and can be removed with a stiff brush and water.

Acceptable Performance/Condition

Minor amounts of efflorescence may exist on concrete and masonry surfaces at completion of the building and should be removed as part of the normal construction process. Continued wetting under normal weather conditions can result in efflorescence.

Excessive amounts of efflorescence that recurs after construction related efflorescence has been removed may require investigation to determine the cause.

Warranty Coverage

• 12 months In-Home
• 15 month Common Property

Claim Response

Efflorescence not meeting the Acceptable Performance/Condition must be rectified.

Maintenance Tip

Do not leave taps or hoses running at foundations.