NuCedar Mills. An addition to the Classic Clapboard line of solar-reflective, prefinished cellular PVC siding, Classic Beaded Weatherboard offers the look and milled edge of traditional Carolina weatherboard, says the firm. The product is 100% recyclable. Endorsed by Oak Ridge National Laboratory, the panels include Sherwin-Williams’ Polane two-part polyurethane finish with UV-reflective pigments, the company says, which keeps the walls cooler and helps lower cooling costs by up to 21%. 866.393.8883. http://www.nucedar.com”>www.nucedar.com.>