MFM Building Products Corp., Coshocton, Ohio, offers WindowWrap™ Flex, an extremely flexible waterproof tape for sealing around windows, doors and building joints in new construction or replacement installations. Because the product is a durable, self-adhered membrane consisting of rubberized asphalt laminated to a cross-laminated polyethylene crepe film, it easily stretches around arched windows, doorways and other curved or irregular shapes. Properly applied to house wrap, OSB and wood sheathing under exterior surfaces of brick, stucco, vinyl or metal siding, it creates an excellent weatherproofing barrier. Self-sealing around nails, screws and staples, the product is easy to apply. For more information, call 800-882-ROOF or e-mail