Kee Safety manufactures OSHA-compliant KeeGuard roof edge permanent railing systems and KeeGuard Contractor portable, temporary railing systems for construction, maintenance and repairs. Other rooftop safety systems include Kee Hatch railings for roof egress hatches, Kee Dome roof dome railings and KeeGuard Skylight Screens. Kee Safety, Inc.., www.wileyx.com, (800) 851-5181.