A method is provided for forming an adhered membrane roof system that meets Factory Mutual (FM) 4470/4474 standards for wind uplift. The method comprises applying a bond adhesive to a substrate on a roof to form an adhesive layer and applying a membrane directly to the adhesive layer. The bond adhesive includes a moisture-curable polymer.

Interlocking laminated structural roofing panels have a lightweight foamed core sandwiched between outer and inner layers of materials such as wood, polymer materials, fire resistant and/or waterproof membranes, and metal layers. At least one layer is a self-gripping metal sheet that grips and bonds mechanically to adjacent layers such as wood layers. A self-gripping metal sheet may be used on both sides of the roofing panels to form a panel that is strong, structurally robust, and able to span between relatively widely spaced roof rafters with little or no mid-span support. Interlocking features along the edges of the panels interlock adjacent panels together to form a strong monolithic roof covering for a roof.

Nail sealable materials comprising a matrix material and bentonite embedded within the matrix material are described herein in accordance with non-limiting embodiments of the present disclosure. In some embodiments, the nail sealable material comprises a sufficient amount of bentonite, such that the nail sealable material passes ASTM D1970 at a specified nail sealable material test thickness. Some embodiments relate to systems and methods utilizing the nail sealable materials described herein.

A roof apparatus provides a uniquely configured clip assembly or interface that connects upper roof panels to under supporting beams. In one embodiment, the clip or interface provides multidirectional movement of roof panels to under support beams. In one embodiment, a specially configured U-beam can be an understructure beam that carries utilities such as piping or electricity.

A roof pan with raised ridges along lateral edges, where the raised ridges of one pan cooperate raised ridges of another pan to prevent water movement. A formed edge that is offset from the roof surface when the pan is installed on the roof allows a flashing to slide under the formed edge when the roof pan is installed on the roof surface.

A roof pan with raised ridges along lateral edges, where the raised ridges of one pan cooperate raised ridges of another pan to prevent water movement. A formed edge that is offset from the roof surface when the pan is installed on the roof allows a flashing to slide under the formed edge when the roof pan is installed on the roof surface.

A hook and loop system for attaching a roofing membrane into the top of a building insulation board including a roofing membrane with a fleece backing having a release sheet on the fleece backing. The release sheet is manually removed in the field to attach the fleece backing directly onto a layer of hooks that have been pre-attached onto the top of the insulation board. The release layer may be somewhat sticky, yet not adhere too tightly to the fleece layer such that its removal does not damage the fleece backing. The release layer may also be pre-rolled together with the fleece backed roofing membrane and shipped together as a unit into the field.

A hook and loop system for attaching a roofing membrane into the top of a building insulation board including a roofing membrane with a fleece backing having a release sheet on the fleece backing. The release sheet is manually removed in the field to attach the fleece backing directly onto a layer of hooks that have been pre-attached onto the top of the insulation board. The release layer may be somewhat sticky, yet not adhere too tightly to the fleece layer such that its removal does not damage the fleece backing. The release layer may also be pre-rolled together with the fleece backed roofing membrane and shipped together as a unit into the field.

A roof system includes a roof deck, a weighted cover board disposed upwardly adjacent the roof deck and a plurality of fasteners coupling the weighted cover board to the roof deck.

or Wall Hole Closing Device A roof or wall hole closing device 1 comprises an expanding part 3 which, in its contracted condition, is passed through the hole from one side. The expanded part 3, when expanded, closes the hole from one side. A rod 5 passes into the expanding part 3. The expanding part 3 is expanded by the user pulling the rod 5 through the hole. A lower seal engages against a second side of the hole to prevent movement of the expanding part 3 from its closing position. The device when used in a roof can be installed from below, which avoids the dangers of the user needing to go up onto the roof.