An arch building structure includes a plurality of structural arch assemblies, a plurality of purlins, and a plurality of flat roofing sections. The plurality of structural arch assemblies is positioned parallel and offset from each other upon the length of the building. The plurality of purlins is positioned perpendicular to the plurality of structural arch assemblies and radially positioned on the vertexes of the plurality of structural arch assemblies to further strengthen the building. Each of the plurality of flat roofing sections is mounted across a corresponding pair of adjacent purlins from the plurality of purlins so that the building roof can be completed.

The detailed principle, structure, manufacture and designing method of a retractable roof for large stadiums or other huge spaces are established. This roof is formed by using a number of connected and paralleled inflatable arc shaped tubes (called “air beams”) made of soft material (membrane). Using successive inflation to the tubes can realize deploying of the roof, and using successive deflation of tubes can realize retraction of the roof. All these processes can be completed by an automatically controlled program. A rigorous mathematics derivation and mechanics proof show that, the retractable air beam roof with durable membrane of ordinary durability can have a large span of over 100 meters, and can withstand in a regularly extreme (critical) weather (heavy wind, rain, snow and hail). The outstanding strong point of this kind of retractable roof is absolutely safe for spectators and performers (or competitors) inside the stadium.

A method of forming a leakproof pitched wall or roof section with the use of solar panels includes arranging the solar panels in rows so that at least one panel on the second row is offset upwardly relative to at least one panel on the first row. Seals are provided to prevent the leakage of liquid through the pitched wall or roof section formed by the solar panels.

A method of forming a leakproof pitched wall or roof section with the use of solar panels includes arranging the solar panels in rows so that at least one panel on the second row is offset upwardly relative to at least one panel on the first row. Seals are provided to prevent the leakage of liquid through the pitched wall or roof section formed by the solar panels.

An arch building structure includes a plurality of structural arch assemblies, a plurality of purlins, and a plurality of flat roofing sections. The plurality of structural arch assemblies is positioned parallel and offset from each other upon the length of the building. The plurality of purlins is positioned perpendicular to the plurality of structural arch assemblies and radially positioned on the vertexes of the plurality of structural arch assemblies to further strengthen the building. Each of the plurality of flat roofing sections is mounted across a corresponding pair of adjacent purlins from the plurality of purlins so that the building roof can be completed.

An arch building structure includes a plurality of structural arch assemblies, a plurality of purlins, and a plurality of flat roofing sections. The plurality of structural arch assemblies is positioned parallel and offset from each other upon the length of the building. The plurality of purlins is positioned perpendicular to the plurality of structural arch assemblies and radially positioned on the vertexes of the plurality of structural arch assemblies to further strengthen the building. Each of the plurality of flat roofing sections is mounted across a corresponding pair of adjacent purlins from the plurality of purlins so that the building roof can be completed.

At least first and second rows of panels may be mounted onto, or to form, at least part of a pitched roof, wall or other structure by mounting a panel support framework onto an underlying structure and arranging the panels so that each panel on the second row is offset upwardly relative to each panel on the first row in a stepped fashion.

At least first and second rows of panels may be mounted onto, or to form, at least part of a pitched roof, wall or other structure by mounting a panel support framework onto an underlying structure and arranging the panels so that each panel on the second row is offset upwardly relative to each panel on the first row in a stepped fashion.

A permanent spacing beam for the rapid deployment of roofing trusses on site. Such permanent spacing beams and truss ties as described may utilize a mount end, a retention end, and an elongate portion which spans the distance between the mount end and the retention end. The mount end may have a mount slot and the retention end may have a retention slot. The mount slot and the retention slot may be configured to permanently couple and mount to a first truss timber stud and an adjacent truss timber stud used in residential and commercial roof construction. Such a configuration results in a permanent truss tie being spanned between two roofing trusses thereby creating a more robust and sturdy roof construction.

A permanent spacing beam for the rapid deployment of roofing trusses on site. Such permanent spacing beams and truss ties as described may utilize a mount end, a retention end, and an elongate portion which spans the distance between the mount end and the retention end. The mount end may have a mount slot and the retention end may have a retention slot. The mount slot and the retention slot may be configured to permanently couple and mount to a first truss timber stud and an adjacent truss timber stud used in residential and commercial roof construction. Such a configuration results in a permanent truss tie being spanned between two roofing trusses thereby creating a more robust and sturdy roof construction.