A solar panel system comprising a plurality of joists, and a set of rectangular solar panels, each solar panel supported along opposing sides by two supporting joists. Each joist is formed with a plurality of wedge-shaped recesses, each recess having an end surface and a flat, sloping supporting surface meeting with a bottom edge of the end surface, the plurality of recesses together forming a saw-tooth contour. Each solar panel is received in the recesses of its supporting joists, resting on the supporting surfaces of the recesses with an upper edge of the solar panel meeting the end surfaces of the recesses, such that an upper solar panel has a lower edge which protrudes over an upper edge of a lower solar panel. With this design, the recesses provide guiding and fixation during the mounting, which saves time and ensures a reliable mounting process.

A roof system includes a roof deck, a weighted cover board disposed upwardly adjacent the roof deck and a plurality of fasteners coupling the weighted cover board to the roof deck.

A method of constructing a building comprising the steps of attaching a first panel to a second panel. The first panel is one of a single plenum panel and a multi-plenum panel and the second panel is one of a single plenum panel and a multi-plenum panel.

A reinforced notched sub-purlin is formed by a top flange, one or more vertical webs, one or more base flanges, one or more notches, and at least one reinforcement. The top flange extends the entire length of the reinforced notched sub-purlin. The vertical web(s) extend from the top flange, and the one or more notches are formed by removing a portion of the vertical web (where only one vertical web is used) or by separating adjacent vertical webs (where a plurality of vertical webs are used). A base flange extends from the vertical web(s) in a direction opposite the direction in which the top flange extends from the vertical web. The at least one reinforcement is provided on the vertical web(s) and provides enhanced stiffness, thus improving ability of the reinforced notched sub-purlin (and a roof or wall panel installed thereon) to resist forces resulting from, for example, wind and snow.

A reinforced notched sub-purlin is formed by a top flange, one or more vertical webs, one or more base flanges, one or more notches, and at least one reinforcement. The top flange extends the entire length of the reinforced notched sub-purlin. The vertical web(s) extend from the top flange, and the one or more notches are formed by removing a portion of the vertical web (where only one vertical web is used) or by separating adjacent vertical webs (where a plurality of vertical webs are used). A base flange extends from the vertical web(s) in a direction opposite the direction in which the top flange extends from the vertical web. The at least one reinforcement is provided on the vertical web(s) and provides enhanced stiffness, thus improving ability of the reinforced notched sub-purlin (and a roof or wall panel installed thereon) to resist forces resulting from, for example, wind and snow.

A hook and loop system for attaching a roofing membrane into the top of a building insulation board including a roofing membrane with a fleece backing having a release sheet on the fleece backing. The release sheet is manually removed in the field to attach the fleece backing directly onto a layer of hooks that have been pre-attached onto the top of the insulation board. The release layer may be somewhat sticky, yet not adhere too tightly to the fleece layer such that its removal does not damage the fleece backing. The release layer may also be pre-rolled together with the fleece backed roofing membrane and shipped together as a unit into the field.

A device (2) for thermally insulating a building wall (1) from the outside, being applicable in particular to walls and roofs, includes, starting from the wall, a layer (3) of impermeable rigid insulation, spacers (4) and a perforated rigid facing sheet (6) at a distance from the layer (3) of rigid insulation so as to form an air gap (7) between the facing sheet and the layer (3) of rigid insulation. A layer (8) of granular insulation (9) in divided form is contained in synthetic textile bags (10) placed in the air gap (7). A method for implementing such a device is also described.

A roof system includes a roof deck, a weighted cover board disposed upwardly adjacent the roof deck and a plurality of fasteners coupling the weighted cover board to the roof deck.

A roofing system that is configured to be superposed upon an existing roof and further be mechanically coupled to the purlins of the structure on which the roofing system is being installed. The present invention includes a plurality of support spacing members wherein the support spacing members are axially aligned with purlins of the structure and mechanically secured thereto. The support spacing members include a center portion that is elevated with respect to the existing roof. A plurality of roof panel members are provided wherein the roof panel members further include longitudinal edge formations. The longitudinal edge formations of the roof panel are configured to couple with longitudinal clip members in order to operably couple adjacent roof panel members during installation of the roofing system of the present invention. The longitudinal clip members are mateably shaped to facilitate coupling with the roof panel members.

A reinforced notched sub-purlin is formed by a top flange, one or more vertical webs, one or more base flanges, one or more notches, and at least one reinforcement. The top flange extends the entire length of the reinforced notched sub-purlin. The vertical web(s) extend from the top flange, and the one or more notches are formed by removing a portion of the vertical web (where only one vertical web is used) or by separating adjacent vertical webs (where a plurality of vertical webs are used). A base flange extends from the vertical web(s) in a direction opposite the direction in which the top flange extends from the vertical web. The at least one reinforcement is provided on the vertical web(s) and provides enhanced stiffness, thus improving ability of the reinforced notched sub-purlin (and a roof or wall panel installed thereon) to resist forces resulting from, for example, wind and snow.