Acceptable Performance/Condition
Dark stains on carpet around room perimeters and at heating registers, commonly called carbon black, are an occupant use and house location issue. Sources of carbon rarely relate to work and material supplied by the builder.

Warranty
None.
Stains resulting from normal wear and tear or improper maintenance are excluded from the warranty.

Action
The homeowner shall ensure that furnaces, fireplaces, and other combustion appliances within the home are not leaking products of combustion.

Remarks
Dark staining often results from airborne carbon material settling out on synthetic or magnetic surfaces such as televisions screens, carpets and magnetic seals on refrigerators. Burning scented candles contributes to carpet staining. Light-coloured synthetic carpets accentuate this condition.