Are the Trex Basics boards mold/mildew/moss resistant?

Hello, and thank you for your interest in Trex! All of the current Trex decking lines including Enhance, Select, and Transcend are mold and mildew resistant as every board contains a high performance 3 sided outer shell capping. If mold or mildew gets on the surface of Trex boards it can be easily cleaned by scrubbing each board with warm soapy water using a mild dish detergent such as Dawn, and then rinse the boards thoroughly. I hope this helps answer your question! Thanks, Tori - Trex Customer Care Team