A construction technique, for example for residential, light commercial and multifamily building construction, involving pre-fabricated elements. The elements include prefabricated structural components and prefabricated surface components. A technique of incremental building includes assembling a building structure using these pre-fabricated elements.

A cover device for gratings, having a planar support (1) and a plurality of holding elements (20) which protrude at a bottom side (7) of the support (1), wherein a plurality of elevations (10) and recesses (11) are provided on an upper side (6) of the support (1).

A flooring substrate system that uses one of three substrate components upon which various types of finish flooring may be attached above a deck structure. The deck structure may be open lumber framed or may be a waterproofed planar surface. Affixation of the flooring system may be by direct connection or by gravitational placement. Height and slope adjustable components interlock through a plunge, twist and locking teeth arrangement to form supporting members beneath the substrate components. A base mounting plate acts as a pivotal point in the system, having recesses and engageable configurations on both its faces for other system components.

A deck board support bracket includes a drainage channel in a top surface of the bracket and deck boards are secured in an end to end manner with a space between two deck board ends centered over the drainage channel. Water presented on the deck surface at two deck board ends passes therebetween and to one side of a supporting joist. The deck board support bracket can be used with various deck board fastening arrangements and preferably is made of an injection molded plastic material.

A flooring substrate system of polymer, open cell structural panels that may be attached to framing members beneath or placed atop of a waterproof membrane roof or deck structure. The panels are attached by a clip with a mechanical fastener that can be screwed into the lower framing members at a range of angles relative to the plane of the panel while the mechanical fastener and clip remain in complete mating engagement. The panels may also be operationally positioned using a disk that either has a threaded post that is bolted to the panel through a pin block and washer, a fixed pin or a pair of spring arms that lock onto rabbets in the panel's top face.

A deck board support bracket includes a drainage channel in a top surface of the bracket and deck boards are secured in an end to end manner with a space between two deck board ends centered over the drainage channel. Water presented on the deck surface at two deck board ends passes therebetween and to one side of a supporting joist. The deck board support bracket can be used with various deck board fastening arrangements and preferably is made of an injection molded plastic material.

A flooring assembly comprising a flooring unit comprising a stability core layer having a plurality of edge surfaces, two of which have an interlocking mechanism for attachment to the edge surfaces of the stability core of adjacent flooring units; a plurality of sound attenuating acoustic layers attached to the bottom surface of the stability core layer; and a finish layer attached to the top surface of said stability core layer.

A detectable warning tile system has a tile base with an upper surface and a lower surface. The upper surface has a plurality of upward projections therefrom. The tile base has two side edges for alignment with corresponding side edges of other tiles, and front and rear edges. An area of the upper surface of the tile base is formed free of the detectable warnings and may include a trough into or over which a replaceable tile section may be placed. The tile base and/or replaceable tile section may be configured to receive one or more individually-installable detectable warnings.

Multiple components of a floor mat system may each be formed of a resilient material such as foamed polyurethane. First and second channels are formed in the respective lower surfaces of first and second mat components, so as to inwardly extend from lateral boundaries thereof. The roofs of the channels are spaced above the general lower surfaces of the mat components. A first socket is formed to upwardly extend from the roof of the first channel, and a second socket is formed to upwardly extend from the roof of a second channel. A connector is used to join the mat components. Posts of the connector are received in the sockets, while a strap joining the posts is received within the first and second channels.

A flooring system includes a plurality of individual flooring pieces, such as floor panels, each having a wear surface, an opposing mounting surface and a retention groove disposed within the mounting surface. A floor panel connector used to interconnect at least two of the floor panels has a base, at least one mast extending from an upper surface of the base and a pair of flexible arms. Each flexible arm extends transversely from opposing sides of the at least one mast and has an extending end. Contacting portions extending from a lower surface of the base are configured to engage the support surface and create a spacing between each flexible arm and the support surface to permit each flexible arm to elastically deflect toward the support surface when pressure is exerted on a floor panel. This deflection enables the extending end of each flexible arm to engage the retention groove of a corresponding floor panel.