FlowGuard Gold®, the most widely used CPVC plumbing system in North America, has come on board as Build Underhill's newest sponsor! Lubrizol, maker of the CPVC that goes into FlowGuard products, will be donating all the supply water pipe & fittings for the house. It marks the beginning of a terrific partnership between a manufacturer that has billions of feet of installed product, and New Jersey's newest green roof house. And on a personal note: I have worked with both CPVC pipe (which is cement-welded at room temperature) and copper pipe (which has to be sweated with a propane torch), and I'm delighted that our water supply system will come together without heat! Special thanks to Lubrizol's superb consultant, Dave DeAngelis.