A method for mounting an appliance to a membrane-covered roof involves (a) mounting two or more rails or appendages to the appliance, the rails or appendages placed to lie flat on the membrane-covered roof, supporting the appliance, and to extend away from the appliance, (b) installing two reinforced attachments, each incorporating a metal plate fastened into decking below the membrane of the membrane-covered roof, and covered by transition membrane heat welded to the membrane of the membrane-covered roof, one attachment installed on each side of each rail to be secured to the roof; and (c) fastening a bridge between the two attachments and over the rail at each rail point to be secured to the roof.

A roof assembly comprising: a roof deck; a thermoplastic membrane covering the deck; and a fabric having disposed thereon expandable graphite.

The invention provides a detailing process with waterproofing membrane parts and prefabricated accessories which includes below steps: place the first layer membrane on the base template while the edge of the first layer membrane beveled; place the edge of the second layer membrane partially overlapped with the edge of the first layer membrane and then fix the position, and place the membrane edge with bevel to the surface of the second layer membrane fittingly; the edge of the second layer is beveled; and the second bevel is directed towards the direction of the first layer membrane. Press together and make the second chamfered surface fixedly connected to the surface of the first layer. The waterproofing parts connection based on this process has high structural strength, a more complete and unified appearance, improves the waterproofing performance of the parts and accessories, and significantly enhances the service life of the membrane.

A method comprises selecting a mounting bracket having opposite horizontal, parallel wings, and a raised portion between the wings, applying a coating of an uncured first sealant material to a first area of a roof surface above decking of the roof, the first area having an outer perimeter greater than overall area of the bracket, urging undersurfaces of wings of the bracket into the uncured sealant material, securing the mounting bracket to the roof by screws applied into the roof decking through holes provided in the wings of the bracket, and applying a second sealant material over heads of the screws on upper surfaces of the wings of the bracket.

A method for mounting a fixture on a membrane-covered roof involves a bracket with wings coated on upper surfaces with a material rendering the wings heat weldable to roofing membrane. The bracket is placed on the roof membrane, and a transition membrane with a cutout for a raised portion of the bracket is placed over the bracket and heat welded to both the upper wing surfaces of the bracket and to the roof membrane.

A method of installing thermoplastic roof membranes within a roofing system, the method comprising (i) providing a first membrane composite and positioning the membrane on a surface of the roof system, where the membrane composite includes a-protective film (ii) providing a second membrane composite and positioning the second membrane composite adjacent to the first membrane composite in an overlapping manner to provide a pre-seamed lap, where the second membrane composite includes a protective film (iii) heat welding the first and second membrane composites together at the pre-seamed lap, where heat welding incorporates a portion of the protective film of the first membrane composite into the seam; and (iv) removing the remaining portion of the protective film from the first membrane composite.

A roof assembly comprising a roof deck; a thermoplastic membrane covering the deck; and a fabric having disposed thereon expandable graphite.

A system for using magnetic induction to weld roofing membranes together without having to use metal induction plates. One roofing membrane is formed with metal particles, a metal mesh or a metal layer therein. When a magnetic field is applied to this membrane, the metal will be heated, thereby causing the membrane to melt and fuse to a second (and optionally third) roofing membrane.

An induction heating tool that holds voltage or current supplied to the induction tank circuit constant and tracks changes in the other of voltage or current during each induction heating cycle. The disclosed induction heating tool exploits the fact that the resistance an attachment plate increases along with the temperature of the attachment plate. During an induction heating cycle, the attachment plate is magnetically coupled to a work coil and the resistance of the attachment plate is reflected to the circuit. Changes in the resistance of the attachment plate alter the pattern of energy delivery from the work coil to the attachment plate in a predictable way. Calculations accurately predict the temperature of the attachment plate over a wide variety of ambient conditions, including the presence of moisture at the membrane/attachment plate interface. The disclosed induction heating tool produces consistent results without calibration for ambient conditions.

A roofing membrane composite includes a roofing membrane and a protective film removable affixed to a top major surface of the roofing membrane without an adhesive layer between the protective film and the roofing membrane, wherein the protective film includes at least one layer with at least one polyolefin. A method for producing a roofing membrane composite and a method for waterproofing a roof substrate.