Capstock's advocates regularly say that adding this armor coat to the board significantly improves its long-term performance. What they bring up less often is that using capstock could make it possible to slack off a bit on what's inside?Cthere's no need to put in coloring there, for instance. Whether firms actually are cheapening the insides remains an open question that likely will take years of field testing to determine.
For its part, Trex maintains that the core of its capped decking, Transcend, is exactly the same as its uncapped Accents line. "We don't have the philosphy that you can junk up the core," says Kyle Lancaster, Trex's director of technical services.
