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How Can I Clean Composite Decking?

Deck colours can weather over time and how this happens depends greatly on the environmental conditions and natural weathering process. Allowing decks to be exposed to excessive heat such as reflecting sunlight, fire or any other heat sources, may damage them. These can far exceed the exposure of normal direct sunlight and cause increased expansion contraction, warping, distorted surface discolouration, unusual weathering, sagging and melting. Static electricity may occur if certain environmental conditions are present. TimberTech decks are a lot cooler than most similar products, but it is important to be aware that the darker shaded decks will always feel hotter than those that are lighter in colour.

It is vital that the TimberTech Decks are kept free of the accumulation of airborne dust from masonry or landscape blocks, as this can damage the surface. Maintain a safe distance when cutting products in the same area. Be sure to quickly remove clay, site dust, mud, dirt and any other construction residue from TimberTech decks. Hot metal debris from cutting close by, can become embedded in the deck causing permanent damage and stains.

If you were wondering, ''How can I clean composite decking?'' look no further. The cleaning procedure is as follows:- 

You will need to keep the area you are cleaning fully saturated until you are ready to rise. Ensure that you only work on small manageable areas one at a time. Allow the area to soak after saturating, without evaporating or drying out. Using moderate downward pressure, scrub with a brush along the grain and then against the grain, ensuring that you access the texture of the surface. Cleaner residue will leave a haze or film on the deck surface when drying if it is not thoroughly rinsed. 

All TimberTech decks have been made to minimize staining and inhibit the growth of mildew. You no longer have to wonder how to clean your composite deck when rinsing your decks periodically with a hose to prevent a build-up of debris or pollen, is always a good idea, even if it appears to be clean. Where pollens, dirt or moisture are found, mildew stains can occur. Make sure that your deck always drains water effectively. Wood resins, wood, debris, dirt, pollens and grass can be a good food source for growing mildew. Mildew is easily controlled through maintaining a clean and dry surface.

You may need to tread with caution on your TimberTech deck during the winter months as they can become slippery. Although most products containing calcium chloride may leave a white residue that can be removed, they are safe to use without damaging the surfaces of decks and porches. Plastic shovels with a metal edge or metal shovels can damage the TimberTech decking surface and are not the best tools for clearing snow on your composite decking. Power washing is another recommended cleaning option and specialized cleaning products are listed on the site which you can visit at


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