A structural insulation panel (SIP) is made of a central insulation material or block core covered with cementitious material. The layers of cementitious material are reinforced with fiber mesh sheets, rebar and corner blocks. The corner blocks are held in thickened cementitious material edges by reinforcement pins that are fixed to the corner blocks. The corner blocks are accessible for lifting the panel and for assembling multiple panels to build a wall.

A construction element includes superposed wooden structural boards that are provided with grooved patterns at the contact interface between the boards in order to prevent the first board and the second board from sliding relative to each other along at least one axis. The construction element further includes a retention system for retaining the boards against each other at the contact interface. The grooved patterns are pre-pressed against each other and the retention system includes at least one metal threaded rod component at least partially passing through at least two of the wooden structural boards at the contact interface.

Novel structural shear panels used for construction of shear walls and shear diaphragms, as well as sheathings and deckings, and similar constructions, where the structural shear panels have novel shapes formed in a grid pattern, comprised of an ordered series of voids, and material in the form of a grid, called grid pattern structural shear panels, where the ordered series of voids reduce the amount of raw material and weight in said grid pattern structural shear panels, and the material in the form of a grid is configured so that it resists the design loads required for the structural use of said grid pattern structural shear panels, and is also configured so that it provides a surface for the connection of said grid pattern structural shear panels to framing members and other building components by the means of fasteners, consistent with standardized construction industry spacings for said fasteners, and where said ordered series of voids provides points of graspability throughout the plane of said grid pattern structural shear panels, as well as the benefits of ventilation, visibility, the passage of light, and facilitates the penetration of small conduits throughout the plane of said grid pattern structural shear panels, without interrupting said material in the form of a grid.

Novel structural shear panels used for construction of shear walls and shear diaphragms, as well as sheathings and deckings, and similar constructions, where the structural shear panels have novel shapes formed in a grid pattern, comprised of an ordered series of voids, and material in the form of a grid, called grid pattern structural shear panels, where the ordered series of voids reduce the amount of raw material and weight in said grid pattern structural shear panels, and the material in the form of a grid is configured so that it resists the design loads required for the structural use of said grid pattern structural shear panels, and is also configured so that it provides a surface for the connection of said grid pattern structural shear panels to framing members and other building components by the means of fasteners, consistent with standardized construction industry spacings for said fasteners, and where said ordered series of voids provides points of graspability throughout the plane of said grid pattern structural shear panels, as well as the benefits of ventilation, visibility, the passage of light, and facilitates the penetration of small conduits throughout the plane of said grid pattern structural shear panels, without interrupting said material in the form of a grid.

A drainage and ventilation mat for use in building exterior walls, roofs and basement assemblies that addresses all three of the following major concerns: drainage, cross ventilation/air flow, and compressive strength. The drainage and ventilation mat includes two layers of parallel, square strands that are overlaid at angles to create a diamond-shaped netting of two layers which provides an air space for horizontal and vertical air movement and protects the drainage plane behind it. The mat features a high compressive strength that creates an air space that can withstand extreme construction and environmental forces. The netting is configured with or without a scrim to accommodate a variety of exterior wall, roof and basement assemblies drainage and ventilation needs.

A drainage and ventilation mat for use in building exterior walls, roofs and basement assemblies that addresses all three of the following major concerns: drainage, cross ventilation/air flow, and compressive strength. The drainage and ventilation mat includes two layers of parallel, square strands that are overlaid at angles to create a diamond-shaped netting of two layers which provides an air space for horizontal and vertical air movement and protects the drainage plane behind it. The mat features a high compressive strength that creates an air space that can withstand extreme construction and environmental forces. The netting is configured with or without a scrim to accommodate a variety of exterior wall, roof and basement assemblies drainage and ventilation needs.

A ceiling module and method of constructing the same, the ceiling module mountable on a suspended ceiling grid structure and including a plurality of elongate blade members having opposing faces, at least a part of each face of at least two blade members being substantially mutually opposed, at least one elongate cross member extending at least between at least two blade members such that the plurality of blade members are connected to form an arrangement; and at least one support member, releasably engageable with the suspended grid ceiling structure and associated with at least one of the blade members to support the plurality of blade members from the suspended ceiling grid structure.

A portable building is disclosed, having a wall section including a first upwardly extending support member, a second upwardly extending support member and a header supported by the first upwardly extending support member and the second upwardly extending support member, the header having a header channel. The wall section also includes a floor beam secured to the first upwardly extending support member and the second upwardly extending support member, the floor beam having a floor beam channel. Further, the wall section includes a plurality of wall panels, where each of the plurality of wall panels are removably retained within the header channel and the floor beam channel, such that each of the plurality of wall panels are slidable along the floor beam and the header while retained within the header channel and the floor beam channel. Each of the plurality of wall panels are configured to interlockingly engage an immediately adjacent wall panel and an exterior surface of each of the plurality of wall panels form a continuous exterior wall surface.

A construction system for a wall or floor or roof uses a set of studs having panel engagement features protruding from opposed edges of the stud. Panel elements having apertures receive these features so that they protrude through the panel element apertures. Retainers engage the panel engagement features and press against an outside surface of a panel element and towards the studs with a compression force to form a compression joint. There may be rails to form a mesh with the studs, and the panel elements may not be wide enough to abut each other, narrow panel elements providing sufficient structural strength in combination with the compression joints and the studs.

Apparatus and process for securing a grating over an atmospheric opening of a ventilation shaft fluidly communicating through the ventilation shaft to an underground ventilation duct. A vertically extending support for arrangement in the shaft has horizontal flanges for projecting across a top of at least two opposing sides of said shaft to hang said support in said shaft for over topping by said grating. An anchoring member is supported in the support at a level below the flanges and proximate the atmospheric opening. A hold-down connects to the anchoring member to secure the hold-down and the grating to the anchoring member.