Roof Platform and Staircases:-Is a structural frame, Mounted on top of the roof. It is designed to support heavy roof accessories such as A/C units, water tanks or others. It comprised of pipes, stub columns, structural framing made of buil-up or hot rolled sections. Grating is used and sometime handrails is required.The structural elements Includes roof monitors, roof extensions, canopies, parapets, interior partitions, framed openings, roof platforms, catwalks, staircases, handrails and cage ladders; and anchor bolts, sag rods and all connection bolts.