Cellular PVC boards can be cut to size and attached just like wood. Watch this video to Caulking cellular PVC corner board to siding. Installing Cellular PVC.
Q: I've completed a couple of projects with cellular PVC trim boards, and in both of up in the joints even though we used both glue and nails during installation.
Royal Building Products (Actual: 0.75-in x 5.5-in x 12-ft) Common PVC Board. 19 Ratings Made from 100% PVC. Prefinished and ready to install. Reversible
Royal 1 x 4 x 16' White PVC Trim Board. Easy to install and backed by a Limited 25-year warranty. 100% PVC; No paint required, but is paintable with 100%
Watch this video to learn the advantages of solid PVC materials. Building Mat Caulking cellular PVC corner board to siding. Installing Cellular PVC