초록 ▼

A built-up roof structure includes an insulating layer of expanded, foamed, closed cell, polystyrene insulation panels covering an entire roof. A water impermeable membrane is laid loosely over all of the insulation panels, and a protective layer of extruded, foamed, closed cell, polystyrene protect

A built-up roof structure includes an insulating layer of expanded, foamed, closed cell, polystyrene insulation panels covering an entire roof. A water impermeable membrane is laid loosely over all of the insulation panels, and a protective layer of extruded, foamed, closed cell, polystyrene protection panels is installed over the membrane to have fissures between each protection panel to allow rain water to run down to the upper face of the membrane. Downwardly open channels are provided in the bottom of each of the protection panels to facilitate runoff. The method of installing such a built-up roof structure includes first laying down the insulating layer made up of all of the insulation panels fit closely together over the entire roof, second loosely laying a water impermeable membrane over the top of the insulation layer, and third, laying down the protective layer made up of the protection panels spaced adjacent each other but far enough apart to allow water to run down between the edges of the protection panels to facilitate drainage.

대표청구항 ▼

A roof structure for installation on a roof deck having an upper surface, said roof structure including: A. an insulating layer of relatively soft surfaced, foamed, closed cell insulation panels supported by the upper surface of the deck; B. a water impermeable membrane laid loosely over the insulat

A roof structure for installation on a roof deck having an upper surface, said roof structure including: A. an insulating layer of relatively soft surfaced, foamed, closed cell insulation panels supported by the upper surface of the deck; B. a water impermeable membrane laid loosely over the insulating layer, said membrane having an upper face and a lower face; C. a protective layer of relatively strong, foamed, closed cell protection panels positioned over the membrane and having fissures therebetween, each of said protection panels having an upper and a lower face; and D. means for fixedly positioning the panels of the protective layer against displacement with respect to each other by wind or water.