PVC / Capped Composite Deck Maintenance

21 gable pavilion overhang above pvc deck
27 brown pvc deck with white Azek cellular PVC and dark gray drink rail

Dirt & Debris

Your new PVC deck should be periodically cleaned. Dirt and oils from shoes, airborne dust, plant pollens, shingle particles, grill grease, tree sap, leaves, and other debris can all attribute to the uncleanliness of your deck. The frequency of which your deck will need to be cleaned will depend upon its level of exposure to dirt and debris.

Mold & Mildew

PVC materials are not a source for mold and mildew to grow. However, if debris is left on the deck, under low light and moist conditions, mold and mildew can use it as a food source to grow. If debris is left on the deck for long periods of time (several years), oxidation can begin to occur.

25 brown pvc deck with white Azek cellular PVC and dark gray drink rail
25 brown pvc deck with white Azek cellular PVC and dark gray drink rail

Mold & Mildew

PVC materials are not a source for mold and mildew to grow. However, if debris is left on the deck, under low light and moist conditions, mold and mildew can use it as a food source to grow. If debris is left on the deck for long periods of time (several years), oxidation can begin to occur.

71 tree surrounded by TimberTech Coastline cellular PVC deck boards

How to Clean

Clean your deck using dish soap or car soap, a hose, and a soft bristle brush. For stubborn stains like clay, soils, or grease, use Simple Green diluted with water by at least 50% (do not use at full strength). Scrub areas with a stiff natural fiber brush or towel. Always clean smaller, manageable areas and rinse often. Do not allow cleaner or soap residue to dry back to surface prior to thoroughly rinsing.

NOTE: Composite deck cleaners such as Corte Clean, Thompson’s Water Seal-Oxy Action, Olympic Deck Cleaner, and other cleaners specified as composite deck cleaners, whether in powder or liquid form, should NOT be used with your Capped Composite or Cellular PVC deck. These cleaners are made for wood/plastic composites that have not been capped.