I installed a Timbertech deck 2 years ago. I would not recommend Timbertech as the product requires an excessive amount of maintenance. In the spring the dirt and mold spots will not come off without vigorous scrubbing with a cleaning solution. My deck is 32 X 16 so this kills a weekend. I have friends who have Trex, etc. and they clean much easier. The mold spots are particularly stubborn and appear to be below the surface and they are slightly visible after cleaning. The weep holes also have to be cleared of debris so the deck drains properly. This goes on from March to June as we have many trees in my area. I have used the JOMAX cleaner but will try some of the others mentioned. Good luck to everyone.