A device for fixing an item to a building structure, for example for use as a roof fixing, is disclosed. It consists of a base plate (30) having a projecting member projecting from one side of it, for example a threaded stud or bolt (40), and an impermeable cover member, for example in the form of a solid block (35) which can be threaded on to the projecting member. The cover member compresses a waterproof membrane located between it and the base plate (30) to form a waterproof seal. The waterproof membrane extends past the edges of the base plate (30) and its projecting edges are sealed to the structure.

A roofing membrane may include a main body, a first material, and a second material. The first material may be bonded to the main body and positioned toward a first edge thereof. The second material may be bonded to the main body and positioned toward a second edge thereof. The second edge may be positioned opposite the first edge such that the first and second materials are positioned toward opposite edges of the main body. At least one of the first material or the second material may include a first reactive material of a chemically reactive two-part cure system that is configured to chemically react upon contact of the first reactive material with a second reactive material of the chemically reactive two-part cure system.

A protected membrane roof system for installation on a roof decking comprising an upper insulation board having an upwardly-facing upper board top surface and an opposite downwardly-facing upper board bottom surface and at least one through-hole communicating therebetween, a ballast material positioned over the upper insulation board, a netting positioned over the ballast material, and at least one fastener assembly having a base seated substantially adjacent the upper board bottom surface, a rod extending substantially vertically from the base of sufficient size so as to extend through the through-hole of the upper insulation board, the ballast material, and the netting, and a cap engaged with the rod above the netting, whereby the wind uplift resistance of the protected membrane roof system is improved and scour of the ballast material is reduced by effectively anchoring the netting to the upper insulation board beneath the ballast material.

A mounting device for covering a roof penetration in a roof includes a base having a hub, an outer perimeter structure, a top which is open, a bottom which is open, and a dome extending from the hub to the outer perimeter structure. An internal reservoir extends between the hub and the outer perimeter structure for holding a sealant against and in cooperation with the roof. A rib is formed to an underside of the dome and extends radially outward from the hub toward the outer perimeter structure.

A roofing membrane may include a main body, a first material, and a second material. The first material may be bonded to the main body and positioned toward a first edge thereof. The second material may be bonded to the main body and positioned toward a second edge thereof. The second edge may be positioned opposite the first edge such that the first and second materials are positioned toward opposite edges of the main body. At least one of the first material or the second material may include a first reactive material of a chemically reactive two-part cure system that is configured to chemically react upon contact of the first reactive material with a second reactive material of the chemically reactive two-part cure system.

A holding plate for sheet material is described, the holding plate comprising a disk-shaped plate, and an aperture formed by an inner edge of the disk-shaped plate, wherein the inner edge of the disk-shaped plate has a contour that comprises a plurality of fins, wherein each fin of the plurality of fins extends at least partially towards a center of the aperture, and wherein each of the plurality of fins is configured to allow a bending of the respective fin.

A seam plate for securing a post-installation incision of a roofing membrane, wherein seam plate provides a first portion and a second portion joined so as to define a lemniscate shape. A fastener aperture centrally disposed in each of the first and second portion. The seam plate dimensioned and adapted to secure the incision by spanning the incision so that the first and second portions are on opposites sides of the incision, and then fastening the first and second portions to structure subjacent the 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 fastener cap system can include a rigid cap and a sealing member which forms a liquid barrier so moisture is impaired from entering a space under the rigid cap and/or around a fastener installed through it. The sealing member can include a central seal disposed on an upper surface of the cap, the seal extending beyond a head of a fastener, which extends through the cap and sealing member, so that moisture is impaired from entering the cap under the head. The sealing member can be above and below respective lowermost and uppermost cap surfaces so the cap system can be fed cleanly and efficiently through a cap feeder during installation via a tool. The sealing member, which can have a higher coefficient of friction than the rigid cap, thereby does not drag along a cap feeder and cause feeding issues. Related methods are provided.

A roof assembly, including a roof including a first top surface and an outer surface, a first membrane arranged on the first top surface, a base plate arranged on the first membrane and connected to the roof, a second membrane arranged on the base plate, and a bracket arranged on the second membrane and at least partially aligned with the base plate, wherein the bracket is secured to the base plate.