Dirt pick up on exteriors

Accumulation of dirt, dust particles and/or other debris on the paint film; may resemble fungus or algae.

POSSIBLE CAUSES:

• Use of a low quality paint, especially lower grades of satin types.

• Air pollution, car exhaust fumes and flying dust collecting on houses.

SOLUTION:

• Wash off all surface dirt before priming and painting, using a scrub brush and detergent solution, followed by a thorough rinse. Heavier dirt accumulations may require the use of a power washer. While dirt pickup can't be eliminated entirely, top quality exterior water-based paints typically offer superior dirt pickup resistance and washability. Also, higher gloss paints are more resistant to dirt pickup than matt paints, which are more porous and can more easily entrap dirt.

• Regular wash down will give longevity to the paint film.