Anonymous wrote:ughh this sucks, I thought that composite / plastic decks are maintenance free. WTF seems as much maintenance, should've just gotten pressure treated and stain.
No exterior material is truly maintenance free. Wood and composites are all subject to mildew and general dirt stains, trex and early composites just show it more. But a wood deck and a trex deck in the same spot will have similar amounts of mildew. The trex (and really all of the composites) are easily cleaned using usually jus water, or a little bit of detergent(never bleach). The corte clean is great, a tad expensive though. For general areas, a few drops of dish detergent in water will get the job done. We have 2 decks - one mostlynshaded tha gets the mildew spots every year, one in full sun that has never had them. Shady deck gets corte clean annually. Sunny deck gets dawn. I have pressure washed both, but regular jet setting on the hose does just as good a job with less water and no chance of damage.
So once a year, 2 hours, and no other maintenance. That is about as maintenance free as it gets.