Read the manufacturer’s directions for best results. Give stubborn stains ... WD-40 to the rescue, again! Plan to clean composite decking at least once a year, preferably twice.

And even a composite deck that resists staining will need to be cleaned periodically to rid it of everyday dirt and grime. Cleaning guidance varies, especially with regard to pressure washing ...

There are several effective ways to remove algae from decking, but experts warn you'll need to be careful with certain ...