A building aperture cover frame, such as a window frame, having at least one frame profile for framing an insulated glass unit, where the frame profile includes: an insulating core of insulating polyurethane foam core material enclosed by a core surface of the insulating core, where the insulating polyurethane foam core material having at least 85% by weight polyurethane, and where the insulating polyurethane foam core material is of a material density of less than 60 kg/m.sup.3, such as less than 50 kg/m.sup.3, preferably less than 40 kg/m.sup.3, a profile shell encapsulating the insulating core and having an inner shell surface facing the core surface, where the profile shell is made of at least 90% by weight polyurethane, and where the profile shell is of a material density of at least 600 kg/m.sup.3, such as at least 750 kg/m.sup.3, preferably at least 850 kg/m.sup.3, and one or more metal reinforcement element(s) located between opposing parts of the inner shell surface and the core surface.

A fenestration system includes one or more of a light modulation controller or ventilation modulation controller. The light modulation controller is in communication with at least one light modulation element of a fenestration assembly having a frame and a panel. The light modulation controller includes a light prescription module configured to provide a specified light prescription for the building interior. A lighting difference module is configured to determine a prescription difference between the specified light prescription and ambient light. A dynamic light module of the light modulation controller operates the at least one light modulation element according to the prescription difference. The ventilation modulation controller is in communication with at least one operator configured to open and close the panel. A ventilation prescription module provides a specified ventilation prescription for the building interior, and a dynamic ventilation module implements panel closing and opening according to the specified ventilation prescription.

In a roof window system, the housing (6) of the ventilation unit (5) is prepared for accommodation of a standard ventilator and/or a regenerator allowing an air current through a ventilation passage (28), from an exterior grating (18) to a ventilation panel (3) integrated into or in continuation of a lining panel of a room in the interior of the building in which the roof window is installed.

A connector bracket for interconnecting roof windows mounted adjacent to each other in an inclined roof structure, one roof window being located below the other roof window when seen in the direction of inclination of the roof structure, is disclosed. A first connecting section of the connector bracket extends in a first direction from a centre section of the connector bracket and is configured for being connected to the mounting bracket on the first roof window in a pivot connection. A second connecting section extends in a second direction from a centre section of the connector bracket and is configured for being connected to the mounting bracket on the second roof window in a fixed connection. The first and second directions are non-parallel. A roof window arrangement where roof windows are interconnected by such a connector bracket and a method for mounting at least two roof windows are also disclosed.

The window arrangement comprises a plurality of neighboring window systems, each window system comprising a frame structure (1, 101) including a plurality of frame members including a pair of opposed side frame members (3, 105), and at least one accessory element (200). Each side frame member comprises a groove such that two grooves of juxtaposed side frame members of two neighboring window systems form a track (100). The accessory element or elements (200) is connected to the window systems by means of the track.

In a roof window system, the roof window (1) has a frame with a frame top member (21), and a sash with a sash top member (31), and further a ventilation device (40) for connection to a ventilation assembly by means of transition means provided between the ventilation assembly and the frame top member (21) and the sash top member (31) of the roof window (1) to accommodate a set of flow paths for air to and from the ventilation assembly. The transition means comprise a plurality of apertures (2102) extending through the frame top member (21).

A curb-mounted skylight designed for mounting on a framing protruding from the roof and forming part of its construction. The skylight has a glazing unit (1) and a support frame (2), where the distance (H2) from the skylight support surface to the outermost edge of the protective wall (22) of the section profile of the support frame (2) is not longer than the distance (H1) from the skylight support surface to the outside surface of the glazing unit (1). There is an adhesive sealing joint (5) between the glazing unit (1) and the protective wall (2).

The present disclosure relates to a roof window (1) with a vacuum insulated glass unit (3). The roof window (1) comprises a VIG unit (3) and a frame arrangement (2). The frame arrangement 2 comprises a fixation frame (7) and a sash (6) fixed to the a VIG unit (3), and the sash (6) is movably connected to the fixation frame (7) by means of a hinge connection (80) so that a top end part (16a) of the sash (6) is configured to move inwards and a bottom end part (16b) of the sash is configured to move outwards when opening the sash (6) from a closed position. The bottom end part (16b) of the sash (6) comprises an elongated, structural bottom member (6c) having an inner surface (41) facing towards the top end part (16a) of the sash, and an opposite exterior surface (42) facing away from the top end part (16a). The VIG unit (3) comprises an overlapping part (9b) where the evacuated gap (4) overlaps the elongated, structural bottom member (6c) of the sash (6). The overlapping part (9b) of the VIG unit moreover overlaps at least a part of an elongated bottom frame member (7c) of the fixation frame 7.

A fenestration system includes one or more of a light modulation controller or ventilation modulation controller. The light modulation controller is in communication with at least one light modulation element of a fenestration assembly having a frame and a panel. The light modulation controller includes a light prescription module configured to provide a specified light prescription for the building interior. A lighting difference module is configured to determine a prescription difference between the specified light prescription and ambient light. A dynamic light module of the light modulation controller operates the at least one light modulation element according to the prescription difference. The ventilation modulation controller is in communication with at least one operator configured to open and close the panel. A ventilation prescription module provides a specified ventilation prescription for the building interior, and a dynamic ventilation module implements panel closing and opening according to the specified ventilation prescription.

In a roof window system, the housing (6) of the ventilation unit (5) is prepared for accommodation of a standard ventilator and/or a regenerator allowing an air current through a ventilation passage (28), from an exterior grating (18) to a ventilation panel (3) integrated into or in continuation of a lining panel of a room in the interior of the building in which the roof window is installed.