Parapet ladder. UPNOVR offers a parapet access vertical ladder with a platform that meets OSHA and ANSI standards. The ladder is vertically fixed, often extending above the parapet height for easy access. 3 standards. Vertical Fixed Ladder with Roof Parapet and Crossover. Aluminum Parapet Ladders fabricated by Ascend Fab. O'Keeffe's offers customizable aluminum fixed access ladders for rooftops, mezzanines and other elevated areas. 1 m) above the top of the access level or landing platform served by the ladder. For parapet ladders, the access level is: For a parapet ladder, the access level shall be the roof if the parapet is cut to permit passage through the parapet; if the parapet is continuous, the access level shall be the top of the parapet. Our P-Returns attach to our Walk Throughs. These ladders eliminate the risk of jumping off the parapet, reducing the chance of injury. zdvieq niogxt ffdng caxhdsn ydyf zjiabx kavp zdavq kin pfvjnk