A lightweight universal panel mat (100, 400, 500, 600, 700, 800, 1100, 1500, 1800, 2005, 2010, 2015, 2020) made of plastic or elastomeric material and having a first section that provides a relatively flat, textured or structured top surface to facilitate movement over the mat and a second section having geometry that includes a plurality of cells having top surfaces that support the first section. The panel mats have first, second, third and fourth sides (110,120,135,145) that are configured to matingly engage or connect to the second, third, fourth and first sides, respectively. The connection can be by insertion or snap-locking of one side to another, or by the use of fastening elements that more securely holds the sides together. Thus, similarly configured panel mats can be connected by interlocking to form a temporary support surface, deck, walkway or roadway. Additional side ramps (2030) and adapters (2050) can be used to facilitate installation of the mats (2005, 2010, 2015, 2020) and access to the upper surfaces of the joined mats.

An insulation system and method comprising an insulation layer, an atmospheric regulation layer, a structural support, and an external surface; wherein the atmospheric regulation layer is supported by the structural support, wherein the insulation layer is located between the atmospheric regulation layer and the external surface, wherein the atmospheric regulation layer has a water vapor permeability of not greater than 3 perms at a relative humidity of 25% as measured by ASTM E96 Procedure A Dry Cup, and a water vapor permeability of at least 6 perms at a relative humidity of 75% as measured by ASTM E96 Procedure B Wet Cup, wherein the atmospheric regulation layer has a fire class A rating as measured by ASTM E84, and wherein the continuous atmospheric regulation layer has a ACH50 value of not greater than 10, wherein ACH50 represents an air exchange at 50 Pascals.

A nut to be used as part of a fastener to be used in multiple ways in various industries or methods has a drive mechanism and stud extending from the drive mechanism with a threaded bore. In addition the nut can be specifically used as a method and as part of special fastener that can be used to join cut, hard-wood members, other naturally occurring manufactured mat members or synthetically man made members, referred to as timber(s) or laminated, in forming a mat used for heavy construction equipment to run on over ground which is not stable. These mats are commonly referred to as Crane Mats or Laminated Mats in the construction, mining, pipeline, and oil and gas industries among others.

An under deck drainage system is mounted on rail members connected to the bottom of deck stringers in a transverse orientation thereto. The rail members increase incrementally in thickness from the proximal end of the deck to the distal end of the deck where the water is discharged from the under deck drainage system so as to provide proper slope for the drainage of water by the under deck drainage system. A ventilation panel is mounted to the periphery of the deck to enclose the under deck drainage system yet provide an adequate supply of air to the system for drying water therefrom. The ventilation panel is formed with a ventilation portion that is located below the level of the deck stringers, and with a hem portion that has sufficient length to cover the under deck drainage system from view even at the distal end of the deck.

An insulation system and method comprising an insulation layer, an atmospheric regulation layer, a structural support, and an external surface; wherein the atmospheric regulation layer is supported by the structural support, wherein the insulation layer is located between the atmospheric regulation layer and the external surface, wherein the atmospheric regulation layer has a water vapor permeability of not greater than 3 perms at a relative humidity of 25% as measured by ASTM E96 Procedure A Dry Cup, and a water vapor permeability of at least 6 perms at a relative humidity of 75% as measured by ASTM E96 Procedure B Wet Cup, wherein the atmospheric regulation layer has a fire class A rating as measured by ASTM E84, and wherein the continuous atmospheric regulation layer has a ACH50 value of not greater than 10, wherein ACH50 represents an air exchange at 50 Pascals.

A modular floor platform includes a floor made of a plurality of individual interconnected composite floor panels. The composite floor panels have a foam core and a rigid cover over the foam core. A frame upwardly supports the floor. Legs are beneath the frame.

The present invention relates to a system and floor panel for use in forming a graded floor, wet area, pathway or decking and to methods of use thereof. The panel has two opposed surfaces including a lower surface and an opposed upper surface. The opposed surfaces are interconnected by opposing edges, including opposed end edges and opposed side edges. The panel tapers in thickness from a first said end edge to an opposed second said end edge with a gradient ranging from about 0.1% to about 2.0%.

A nut to be used as part of a fastener to be used in multiple ways in various industries or methods has a drive mechanism and stud extending from the drive mechanism with a threaded bore. In addition the nut can be specifically used as a method and as part of special fastener that can be used to join cut, hard-wood members, other naturally occurring manufactured mat members or synthetically man made members, referred to as timber(s) or laminated, in forming a mat used for heavy construction equipment to run on over ground which is not stable. These mats are commonly referred to as Crane Mats or Laminated Mats in the construction, mining, pipeline, and oil and gas industries among others.

An arena apparatus for staging a sport with at least one athlete is provided. The arena apparatus includes a floor having a perimeter; and at least one wall at the perimeter and extending upwardly and outwardly from the floor at an angle greater than or equal to fifteen degrees measured from an axis perpendicular to the floor, wherein the angle of the wall prevents the athlete from standing on the wall.

A modular floor platform includes a floor made of a plurality of individual composite floor panels interconnected by tongue and groove joints. The individual composite floor panels have a foam core and a rigid cover over the foam core. A frame attaches the floor panels together along a perimeter of the floor. Legs beneath the frame and upwardly support the floor.