An underroof collar for use in water-proofing the joint between a roof structure and a window frame is disclosed. It includes a plurality of collar members adapted for extending along frame member of the window frame, and each collar member includes an inner rim part and an outer skirt part intended for coming into engagement with the roof structure. The underroof collar is provided with at least one first engagement zone for positioning the underroof collar by bringing the first engagement zone into contact with a second engagement zone on another object, said first engagement zone being exposed in a packed state of the underroof collar. The first engagement zone may include a fastener and/or a cover layer. A packed underroof collar and a method for providing an underroof collar is also disclosed.

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 connector element for a flashing assembly for use in a roof window arrangement is disclosed. The exterior side of the connector element comprises a gutter with two longitudinal edges configured for engagement with an engagement section of a flashing member. A connecting section is configured for being connected to a bracket used for connecting a roof window to a load-bearing structure of the roof structure. The connector element is configured for being arranged with a first end at an outer side of a bottom frame member of a first roof window and a second end at a second roof window. At least one attachment element is provided on an end surface at the second end, said attachment element being adapted for engagement with a supporting element of a flashing assembly. A method for weather proofing a roof window arrangement is also disclosed.

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.

A middle flashing assembly for use in a roof window arrangement with a first roof window located above a second roof window when seen in the direction of inclination of the roof structure is disclosed. It comprises a middle flashing member configured for extending between the roof windows and having at least one engagement section configured for engagement with a connector element extending from the first roof window towards the second roof window. It further comprises an edge supporting rail and an edge gasket both extending on the interior side of the middle flashing member in parallel with a longitudinal edge. The edge gasket is located between the middle flashing member and the edge supporting rail in the mounted state. An end section extends beyond the middle flashing member in the length direction for engagement with the connector element. A method for weather-proofing a roof window arrangement is also disclosed.

An end closure for a cladding for a first roof window forming part of a roof window arrangement mounted in an inclined roof structure, where said first roof window is above a second roof window when seen in the direction of inclination of the roof structure and where a middle flashing member is arranged between the roof windows is disclosed. The end closure comprises an end plug having a male connector section configured to be inserted in a hollow section of the cladding and an end gasket configured to come into a sealing engagement with the middle flashing member. The end gasket is arranged at the interior side of the end plug and extending from one side surface to the other. The end closure may further include a covering plug configured for interconnecting the end plug with a covering extending along a lower edge of the first roof window.

According to the invention, a skylight including a frame is disclosed. The skylight may include a frame. The frame may include a vertical curb and horizontal flashing integral with, and extending away from, a bottom of each exterior side of the vertical curb. The frame may also include a first vertical member extending upward from the horizontal flashing which extends from a first exterior side of the vertical curb, and a second vertical member extending upward from the horizontal flashing which extends from a second exterior side of the vertical curb, where the second exterior side is opposite the first exterior side. The frame may further include a first horizontal member extending from the first vertical member, and away from the vertical curb, as well as a second horizontal member extending from the second vertical member, and away from the vertical curb.

The invention provides a system for installing a load on a metal panel roof, the system comprising a rail and closure structure adapted to be supported by ribs defined by the roof panels, and a load adapted to be supported on the rail and closure structure. In some embodiments, standing seams on ribs, and side rails on the rail and closure structure, extend parallel to each other, and optionally parallel to opposing sides of a hole in the roof. In some embodiments, substantially all of a downwardly-directed force of the load passes downwardly through the rail and closure structure to the ribs, and from the ribs to underlying structural members of the building.

An underroof collar for use in water-proofing the joint between a roof structure and a window frame is disclosed. It includes a plurality of collar members adapted for extending along frame member of the window frame, and each collar member includes an inner rim part and an outer skirt part intended for coming into engagement with the roof structure. The underroof collar is provided with at least one first engagement zone for positioning the underroof collar by bringing the first engagement zone into contact with a second engagement zone on another object, said first engagement zone being exposed in a packed state of the underroof collar. The first engagement zone may include a fastener and/or a cover layer. A packed underroof collar and a method for providing an underroof collar is also disclosed.

The present disclosure concerns a skylight protection assembly to protect a skylight of a roof. The skylight protection assembly comprises a frame superposable to a mounting surface of the roof to surround at least partially the skylight and securable to the roof, the frame comprising at least one frame member having a roof-engaging portion, a screen-supporting portion and an outer side; a protection screen engageable with the screen-supporting portion of said at least one frame member to define with the frame a skylight protection chamber configured to contain the skylight. The frame member comprises an upper frame member, the outer side of the upper frame member having a water-flowing profile considered in a plane substantially parallel to the mounting surface of the roof. The present disclosure also concerns a method for protecting a skylight of a roof.