To help architects and design engineers overcome problems with roof garden installation, water leakage and root penetration, Dow Hyperlast, a division of Dow Polyurethanes (PU), a business group of The Dow Chemical Company, has introduced VERDISEALâ„¢ Green Roof Waterproofing System. According to the company, VERDISEALâ„¢, comprised of a primer, elastomeric membrane and robust wear coat, balances economic high performance with flexibility in installation and use. For more information, visit www.dowhyperlast.com and www.verdiseal.com.