A composite construction element or panel system for use in construction of multi-storey structures, either as a prefabricated panelized system or as a modular system. The composite construction element comprises two mass timber subpanels joined at a distance to form a hollow core, through which various building services (e.g. HVAC or electrical systems) and/or insulation may be integrated. When used as a modular system, after assembly, the two subpanels become one structural entity of increased structural capacity while providing a hollow core to provide/deliver desired building services.

A wall structure having a horizontal base stud, which wall structure has an upper wall panel, and a horizontal base stud, wherein the base stud has openings to allow for liquids to escape in the event of a plumbing leak, and additional openings to allow for air flow from the exterior to the interior of the wall structure.

A floor and column structure consists of floors and columns in a building, wherein each of the floors is composed of a floor iron sheet, square pipes, a floor steel grating, a lower impermeable membrane, rigid plastic foam, an upper impermeable membrane and cement stone concrete; each of the columns is composed of a column iron sheet, column steel gratings, steel posts and cement stone concrete; the floor iron sheet, the square pipes and the floor steel grating and the column iron sheets, the column steel gratings and the steel posts are welded into a framework; the lower impermeable membrane, the rigid plastic foam and the upper impermeable membrane are provided over the floor steel grating; Various pipelines are installed in the plastic foam layer; the cement stone concrete is provided over the upper impermeable membrane; and a colored cement talc layer is provided over the cement stone concrete. The inventive floors and columns do not need to be supported and reinforced by concrete beams, do not need to be enclosed by supporting timber boards during casting, can isolate vibration, insulate sound and heat, greatly shorten engineering time, prevent leakage, and facilitate pipeline installation, have smooth, bright, visually pleasant, sanitary and freshening surfaces, and can replace floors and columns in existing large buildings and be applied to the construction field.

A building system in which each panel of each four-panel foldable section and each end panel has preinstalled wiring with plug and play connectors at least at the electrical wiring limits of each such panel. Preferably, each wall panel has a prewired lighting circuit and a prewired convenience electrical outlet. Particular panels may have additional wiring variously for the switch box, the service door motors, fans, and the incoming primary electrical power source. The plug and play connectors for connecting between panels and between panels within four-panel sections include slack cable ends that enable the plug and play connectors to be stowed and secured (tape, bundle ties, etc.) during transport and storage of the folding building. Preferably, field-installed cable trays run the length of the building and field-installed cabling therein connects to preinstalled wiring using plug and play connectors.

The insulating barrier of a panel including has a first stratum and a second stratum, each having a plurality of ridges that face each other, and run athwart of each other. Clearance between at least some adjacent pairs of the ridges provide a mechanical chase that reaches across at least most of the panel. A cladding overlaying at least one side of the insulating barrier is denser than the barrier. The mechanical chase is in the form of a groove through which a utility feed can be routed when the panel is to be mounted in a building.

A construction assembly for a prefabricated building, comprises horizontal elements and vertical elements as well as assembly elements. The horizontal, vertical and assembly elements are formed by a first panel forming one of the longitudinal faces, a second panel forming a structuring layer on the opposite longitudinal face, and an insulating layer disposed between the longitudinal faces. The thickness U of the vertical elements corresponds to the cross-section of the assembly elements, the length of the vertical elements is a multiple of U, and at least some of the assembly elements further comprise fluid pipes and/or electrical cabling.

Generally, the present disclosure of embodiments of Disclosed is a construction element of a null-energy system. Such a construction element can include a body on which the construction element can further include a porous material compartment with porous material to store water and evaporate the stored water outwards from the porous material through a holding layer on the opposite side of the porous material compartment to the body. The disclosure relates also to a null-energy system using a construction element of null-energy system as embodied therein.

A building structure comprising a main steel frame structure 3 and roof 41, wall 74, window and door portions 137, 166, 142, 152 directly or indirectly attachable to the main structural support and are configured, in use, to combine to form a thermally insulative barrier 34, 37, 21 between the interior of the building and the external atmosphere, the barrier also acting to at least partially inhibit travel of air therebetween.

A wall structure having a horizontal base stud, which wall structure has an upper wall panel, and a horizontal base stud, wherein the base stud has openings to allow for liquids to escape in the event of a plumbing leak, and additional openings to allow for air flow from the exterior to the interior of the wall structure.

A composite construction element or panel system for use in construction of multi-storey structures, either as a prefabricated panelized system or as a modular system. The composite construction element comprises two mass timber subpanels joined at a distance to form a hollow core, through which various building services (e.g. HVAC or electrical systems) and/or insulation may be integrated. When used as a modular system, after assembly, the two subpanels become one structural entity of increased structural capacity while providing a hollow core to provide/deliver desired building services.