DIRT AND DEBRIS - The affected area should be sprayed off with a hose to remove surface debris. Use warm soapy water and a soft bristle brush to remove dirt and debris from the embossing pattern.
USING A PRESSURE WASHER (GENERAL CLEANING ISSUES) - A pressure washer with no greater than 3100 psi** that has a fan attachment/adjustment and soap dispenser may be used to remove dirt or mud from Transcend, Enhance, or Select composite decking. Spray deck with soap, then follow by gently scrubbing each deck board with a soft bristle brush. Spray/rinse each individual deck board using a fan tip no closer than 8 in. (203 mm) from the decking surface. RINSE THOROUGHLY. If dirty water from cleaning is left to dry, a film will remain on the decking surface.
ISSUES WITH CONCRETE, CEMENT, MORTAR, OR STUCCO DUST - When working with cement, concrete, mortar, or stucco, protect the decking as much as possible in order to not get dust particles on the decking surface. These particles, once they get hot or wet, can cause a reaction on the decking surface and are very difficult to remove. If particles get on the decking surface, Trex recommends using Sakrete™ Concrete Dissolver. BE SURE TO FOLLOW MANUFACTURER'S INSTRUCTIONS.
HARD WATER STAINING - Hard water is water with high amounts of mineral deposits like lime, silica and calcium. When the water dries, deposits are left behind, leaving unsightly spots on surfaces. This is not a defect of Trex products but an issue with the water itself. Generally, these deposits can be cleaned on composite decking surfaces with white vinegar. Rinsing is required, so care should be taken to not use hard water for this purpose. If hard water must be used, dry with a cloth or use a blower to dry surfaces. In some cases a deck brightener product may also be used to help clean hard water stains.
ICE AND SNOW - A plastic shovel may be used to remove snow from composite decking. Use calcium chloride or rock salt to melt the snow and ice from the deck surface.
OIL, GREASE, AND FOOD - All food spills should be removed as soon as possible. The surface must be cleaned within seven days to maintain the stain warranty on Trex decking. To remove, spray off with a hose and use warm, soapy water and a soft bristle brush to remove spills from the embossing pattern.
MOLD AND MILDEW - If debris such as pollen and dirt remains on your composite decking surface for an extended period of time, mold can feed on the biofilm. Using a hose and warm, soapy water with a soft bristle brush is recommended to remove the food source and mold.