In certain embodiments, an apparatus includes a body, a first hook, and a second hook. The body of the apparatus includes a first surface and a second surface opposite to the first surface. The first hook extends from the first surface of the body, and the first hook and a portion of the body form a first channel. The first channel is adapted to receive a curtain wall member from a first direction. The second hook extends from the second surface of the body, and the second hook and the portion of the body form a second channel. The second channel is adapted to receive an intermediate member from a second direction that is opposite to the first direction.

[Object] To provide a fixture that can increase the degree of layout freedom of a contact fitting and facilitate construction and that can suppress a reduction in the strength and the durability of a building structure; and a wall structure for buildings. [Solution] A fixture 10 can be provided with a contact fitting 30. The fixture 10 includes a substrate portion 11, a first side wall portion 12, a second side wall portion 13, a support portion 14, a first locking portion 15, a second locking portion 16, and a fixing plate portion 17. The fixing plate portion 17 extends from a distal edge 13A of the second side wall portion 13 so as to face the substrate portion 11, and is disposed at a location closer than the support portion 14 to the substrate portion 11. The contact fitting 30 includes a mounting portion 31 that is fixable to the fixing plate portion 17, and an erect piece 32 that is erect in a direction that intersects the mounting portion 31.

A cladding clip comprising a lateral base, a head coupled to the lateral base, and a flexible lip upstanding from the lateral base and laterally spaced from the neck along the base is disclosed. The flexible lip is hooked so that a lateral part of the lip extends laterally spaced from the base.

A deck system including hold-down devices for attaching deck boards to deck support structures and a siding system including attachment devices for mounting siding boards to wall structures. Hold-down devices are attached to deck support structures by horizontally-extending fasteners and attach the deck boards to the deck support structures without fasteners providing paths for water to pass through the deck boards into the support structures. Deck board engagement members of the hold-down device extend into slots in deck boards. Siding board attachment devices are mounted on upright surfaces of wall structures using horizontally extending fasteners. Siding boards are mounted with a standoff distance providing ventilation space behind and between siding boards.

A kit for assembling prefabricated wall panels includes prefabricated wall panels and clips. Each side of the prefabricated wall panels is configured to form a side-lap joint and at least a tongue and groove joint upon assembly. Each clip includes a flange having a plurality of holes and a web that is connected to an edge of the flange and is at least 4 inches long. The clips may allow for greater panel spans and/or provide improved wind resistance. For assembling the prefabricated wall panels to a building structure, a clip is placed on a cheek surface of the side-lap joint of one of the prefabricated wall panels. Fasteners are threaded through the prefabricated wall panel to clamp an edge of the prefabricated wall panel between the clip and the building structure.

A fastener unit and related method for securing a board to a support is provided. The fastener unit includes a spacer block, a grip element extending from the spacer block and configured to fit in and engage a groove of the board, and one or more board engagement elements. The board engagement elements can engage the groove of the board, thereby securing the spacer block in a position adjacent the groove to establish a gap between the board and another board. Related methods of use also are provided.

Provided are a wall structure for a building, an attachment apparatus, and a board material construction method, according to which construction is simple and fast, and a board material can be stably supported. A bracket includes: a first portion 110; a second portion 120; a first side wall portion 101 that extends continuously from at least a portion of one side edge 111 of the first portion 110 to at least a portion of one side edge 121 of the second portion 120, and protrudes toward a narrow angle 1 side; a second side wall portion 102 that extends continuously from at least a portion of another side edge 112 of the first portion 110 to at least a portion of another side edge 122 of the second portion 120, and protrudes toward the narrow angle 1; and a mounting portion 125 that is provided on the second portion 120. A first support body 30 includes: a first joining portion 31 that is to be mounted on the mounting surface 126 of the mounting portion 125; and a second joining portion 32. A fastening member includes a first drill screw 91 that penetrates through and fastens the mounting portion 125 and the first joining portion 31 to each other.

A clamp (51) for connecting panels in a surface coating structure on a base frame comprises a fixable element (100) and a rotatable element (200) having an upper part (220), projecting after its rotation from the fixable element (100) and provided with end (21, 22) of engagement in lateral grooves of adjacent panels. The rotatable element (200) has an intermediate part (280) and a lower part (290) which are constituted by two coaxial discs, the disc of the intermediate part (280) having a smaller diameter than the disc of the lower part (290). The fixable element (100) has two communicating coaxial holes (10, 11) housing the intermediate part (280) and the lower part (290) with a wide coupling to allow rotation of the rotatable element (200) with respect to the fixable element (100). A manufacturing process of the clamp (51) is also described.

A set including a coupling element, a first building element, a first building panel and a second building panel, wherein the coupling element is configured for assembling the first building panel and the second building panel to the first building element, wherein the coupling element includes a primary coupling portion configured to cooperate with a first mechanical locking system of a first edge of the first building element to thereby lock the coupling element from displacement along a secondary axis and a perpendicular tertiary axis each being orthogonal the primary axis; wherein the coupling element includes a secondary coupling portion extending in a direction along the tertiary axis and configured to cooperate with a second mechanical locking system of the second building panels, wherein the second locking system is configured for locking the first and second panels by a folding displacement of the second panel about its second edge.

A system for mounting wall panels to an existing wall, includes a plurality of base assemblies adapted to be secured to the existing wall; a plurality of sliding support members slidably received in the base assemblies and adapted to be fixed therein by fastening members, each sliding support member including a central member slidably received within a respective base assembly, and at least one capture member extending from the central member; and a plurality of adjustment support members connected with the sliding support members for mounting the wall panels to the existing wall, wherein each adjustment support member includes an adjustment positioning member adjustably connected to a respective capture member; and wherein the at least one capture member includes a tubular member, and the at least one the adjustment positioning member includes a rod member adjustably received in the tubular member.