A closure may include a door configured to seal an opening. The door may include a section with an internal cavity. The closure may also include a core within a first portion of the internal cavity of the section. The core may be configured to expand from a relaxed state to an expanded state and provide a seal between the door and an edge of the opening when the core is in the expanded state.

A liftable closure element movable between a lowered and a raised configuration, is associated with a portal structure having a compartment for storing the closure element, delimited by a front wall, a space being provided which communicates with the compartment and with the outer environment between the wall and the closure element. An air seal device for the liftable closure includes first and second sealing members adapted to reach a facing position in which they adhere by magnetic attraction to close the transverse space, one connected to the wall for supporting a ferromagnetic plate, the other consisting of a magnetic member fixed to the closure element. The first sealing member includes a base structure which can be fixed to said wall by first and second adjustable fasteners in a position exactly corresponding to the position of the sealing member fixed to the surface of the closure element.

The enclosure comprises: a partition (1) of panels (2) provided with longitudinal grooves (3) and a space for mounting a door (6); and a door (6) comprising: an upper box (7); and two vertical posts (9) with vertical guides (30) for moving a closing element (10), in addition to longitudinal channels (15) defining passages, with the longitudinal grooves (3), for housing fastening elements (16, 17) that can be vertically moved between a position wherein the door (6) is held and a position wherein the door (6) is released. The door comprises means for ensuring peripheral tightness in the closed position.

A door assembly, for an opening in a building, comprising a sealing assembly, wherein the sealing assembly is configured to seal a gap (36) between the rolling shutter door (4), the opening, and a surface of the building proximal the opening. The seal comprises a resiliently deformable member (48), and a sealing member (46), mutually positioned such that the resiliently deformable member co-operates with the sealing member when the rolling shutter door is in the closed position to seal the gap, which prevents or mitigates passage of sound, smoke, heat, and the like through the gap. The door assembly is preferably an acoustically-insulating door assembly.

According to some embodiments curtain assemblies are provided having fabric curtains with brush edges that are mated to the fabric curtain. The brush edges are configured to extend laterally from the curtain to contact, for example, the side edges of the opening in which the curtain assembly is installed and remain in contact with the side edges during movement of the curtain. The brush edges can be configured to deflect along the plane of the motion of the curtain to maintain the contact between the curtain and the side edges. In some embodiments, the curtain assemblies can include optional side tracks configured to receive the brush edges, for example, to improve the connection between the brush edges and the side edges.

A closure may include a door configured to seal an opening. The door may include a section with an internal cavity. The closure may also include a core within a first portion of the internal cavity of the section. The core may be configured to expand from a relaxed state to an expanded state and provide a seal between the door and an edge of the opening when the core is in the expanded state.

An elongated support member is adapted to be connected to a wall portion or roof portion defining a space for housing an extendable or movable covering, wherein the support member is adapted for supporting a plate shaped cover in a way that the cover projects from the support member so that it at least partly can conceal the space for the covering. The support member includes a pivot arrangement for forming a pivot axis so that the cover may be pivoted between a non-connected state and a connected state in relation to the support member.

According to some embodiments curtain assemblies are provided having fabric curtains with brush edges that are mated to the fabric curtain. The brush edges are configured to extend laterally from the curtain to contact, for example, the side edges of the opening in which the curtain assembly is installed and remain in contact with the side edges during movement of the curtain. The brush edges can be configured to deflect along the plane of the motion of the curtain to maintain the contact between the curtain and the side edges. In some embodiments, the curtain assemblies can include optional side tracks configured to receive the brush edges, for example, to improve the connection between the brush edges and the side edges.

A portal structure has an air seal device including an air sealing element movable between a lowered and a raised configuration. The portal structure has a compartment for storing the closure element, delimited by a front wall. A space is provided which communicates with the compartment and with the outer environment between the wall and the closure element. The air seal device includes first and second sealing members adapted to reach a facing position in which they adhere by magnetic attraction to close the space, one connected to the wall for supporting a ferromagnetic plate, the other consisting of a magnetic member fixed to the closure element. The first sealing member includes a base structure which can be fixed to said wall by first and second adjustable fasteners in a position corresponding to the position of the sealing member fixed to the surface of the closure element.

The enclosure comprises: a partition (1) of panels (2) provided with longitudinal grooves (3) and a space for mounting a door (6); and a door (6) comprising: an upper box (7); and two vertical posts (9) with vertical guides (30) for moving a closing element (10), in addition to longitudinal channels (15) defining passages, with the longitudinal grooves (3), for housing fastening elements (16, 17) that can be vertically moved between a position wherein the door (6) is held and a position wherein the door (6) is released. The door comprises means for ensuring peripheral tightness in the closed position.