EP3779094A2 - A skylight window - Google Patents
A skylight window Download PDFInfo
- Publication number
- EP3779094A2 EP3779094A2 EP20210451.9A EP20210451A EP3779094A2 EP 3779094 A2 EP3779094 A2 EP 3779094A2 EP 20210451 A EP20210451 A EP 20210451A EP 3779094 A2 EP3779094 A2 EP 3779094A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- igu
- edge
- window
- skylight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 239000012080 ambient air Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 229910052743 krypton Inorganic materials 0.000 claims description 2
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 7
- 239000011810 insulating material Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000012216 screening Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002318 adhesion promoter Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/03—Sky-lights; Domes; Ventilating sky-lights
- E04D13/0305—Supports or connecting means for sky-lights of flat or domed shape
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/03—Sky-lights; Domes; Ventilating sky-lights
- E04D13/0305—Supports or connecting means for sky-lights of flat or domed shape
- E04D13/0315—Supports or connecting means for sky-lights of flat or domed shape characterised by a curb frame
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/03—Sky-lights; Domes; Ventilating sky-lights
- E04D13/033—Sky-lights; Domes; Ventilating sky-lights provided with means for controlling the light-transmission or the heat-reflection, (e.g. shields, reflectors, cleaning devices)
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/03—Sky-lights; Domes; Ventilating sky-lights
- E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts
- E04D13/0351—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis
- E04D13/0352—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis the parts being of domed or pyramidal shape
Definitions
- the present invention relates to a skylight window for being installed in or on a roof of a building, wherein the skylight window comprises:
- skylight windows originates from industry buildings, where it was desired to provide more daylight to the interior of the building in a cost-efficient way.
- Many industry buildings are made with substantially flat roofs and the most cost-efficient way to provide more daylight in such a building was to cut a hole in the roof and cover it with a translucent or transparent material.
- proper skylight windows were developed with a particular view to improving the water tightness by improving the exterior integration of skylight windows with the roofing covering of the roof structure and improving thermal insulation of the skylight window has also been a focus area.
- Interior integration with ceilings etc. has, however, not been given much attention, and it is also desired to increase the amount of daylight reaching the interior of the building relative to the pane area.
- a roof window of the kind mentioned in the introduction which is furthermore characterised in that an exposed frame surface of the frame side member extends between the groove and the IGU, said exposed frame surface having a first edge extending in the longitudinal direction along the groove and a second edge extending in the longitudinal direction along an interior side of the IGU, and that the exposed frame surface has an overall width between the first edge and the second edge measured perpendicular to the longitudinal direction of 40 mm or less.
- the IGU comes very close to the lining panel, which covers the inwards facing surface created in the roof structure when making the opening in the roof.
- the majority of the window frame can be made from materials, which are not suitable for being exposed towards the interior of the building, for example because they are not resistant to UV radiation or not easily cleaned.
- the skylight window itself appears less bulky when seen from the inside. Fourthly, that a possible difference between colour or texture of the exposed frame surface and of the lining panel will not be easily seen.
- the overall width is to be understood as the total distance between the first edge and the second edge measured along the exposed surface.
- the exposed surface may be composed of two or more sections extending in continuation of each other, the width is not necessary measured along a straight line but may be the total of the widths of the two or more sections. Minor irregularities, such as holes for the reception of screws, pins, or like fasteners, are, however, not to be considered when determining the overall width.
- the exposed frame surface has an overall width in the interval of 3-38 mm, specifically in the interval of 12-36 mm, and more specifically in the interval of 18-24 mm.
- the exposed frame surface has an overall width between the first edge and the second edge measured perpendicular to the longitudinal direction being 30% or less of the overall frame height (H), such as 20% or less of the overall frame height (H).
- the exposed frame surface may be curved and/or composed of two or more sections extending in continuation of each other when seen in a cross-section perpendicular to the longitudinal direction of the frame side member. This may allow the distance between the first edges of two frame side members located on opposite sides of the IGU to be larger than the distance between the second edges thereof. This means that the two lining panels attached to these side frame members will be slightly retracted in relation to the frame opening and that the area between the lining panels in parallel with the frame plane may be larger than the exposed interior surface of the IGU. This may contribute to increasing the amount of daylight reaching the room underneath the skylight window as less light will be blocked by the lining panel and as the exposed frame surface may reflect light into the room.
- the exposed frame surface being inclined with respect to the height direction so that the second edge is located at a distance from the first edge in a direction parallel to the frame plane. It is presently preferred that this distance is 15mm or less to achieve an optimal transition between the exposed frame surface and the lining panel.
- the exposed frame surface may be provided with light reflecting coating.
- each frame side member comprises a first leg projecting in the height direction along an edge of the IGU and a second leg projecting substantially in parallel with the frame plane along an interior side of the IGU.
- each frame side member having a cross-sectional shape resembling the letter L in a plane extending perpendicular to the longitudinal direction. It is, however, also possible to provide each frame member with a third leg projecting opposite the second leg, i.e. away from the frame opening. Such a third leg may contribute to the stability of the window frame in the mounted state and/or be used for the attachment of a roofing material to the window frame.
- a third leg to which a roofing material is connected is also known as a curb flange and usually has a triangular cross-sectional shape in a plane perpendicular to the longitudinal direction.
- the IGU extends beyond the groove in a direction parallel to the frame plane, so that the groove is located underneath an interior side of the IGU when seen in the height direction.
- This provides good thermal insulating properties as the IGU will usually provide better insulation than most common frame materials.
- Another potential advantage is that the edge of the IGU will be hidden from view from inside the building, which may not only be advantageous from an aesthetic point of view. It may also allow an increased inflow of light, since the distance keepers, sealings, and protective maskings usually found at the edges of an IGU will be located above the frame side members, not on the exposed interior surface of the IGU.
- the IGU may be connected to the window frame by an adhesive bond, such as an adhesive applied directly onto the window frame and/or the IGU or adhesive tape applied to one or both surfaces to be joined. It is also possible to use a glue or to locally soften the material of the window frame so that it may adhere to the surface of the IGU. Adhesion promoters may be applied to the window frame and/or the IGU, one example being the application of a masking on the IGU, another being a roughening of the surface of the frame side member to which the IGU is to be attached. The adhesive or glue bond may be supplemented with a mechanical retainment of the IGU.
- an adhesive bond such as an adhesive applied directly onto the window frame and/or the IGU or adhesive tape applied to one or both surfaces to be joined. It is also possible to use a glue or to locally soften the material of the window frame so that it may adhere to the surface of the IGU. Adhesion promoters may be applied to the window frame and/or the IGU, one example being the application of a mask
- the adhesive bond provides better mechanical rigidity of the window by allowing a uniform transmission of loads from the IGU to the window frame, whereby the IGU will hinder deformation of the window frame.
- the adhesive bond also ensures a durable air tightness of the window by providing a continuous airtight connection along the periphery of the IGU. Furthermore, the adhesive bond enhances the burglary resistance as it will not be immediately possible for a burglar to detach the IGU from the window frame.
- the frame side member may in principle be made from any suitable material, but in one embodiment at least one of them comprises an extruded profile with hollow chambers, preferably made from polyvinylchloride (PVC), or a pultruded profile, made for example from polyurethane (PUR) reinforced with glass fibres.
- Insulating members made for example from expanded polystyrene (EPS) or mineral wool may be arranged in the hollow chambers or recesses in the frame side members.
- EPS expanded polystyrene
- mineral wool may be arranged in the hollow chambers or recesses in the frame side members.
- the weather shield pane may be curved, forming a dome above the IGU and the window frame, protecting them from precipitation, dirt, etc., but it is also possible to use a planar weather shield pane. It may be of glass or clear polymer and may comprise only a single layer.
- the height of the space between the weather shield pane and the IGU is bigger than the height of the IGU measured in the height direction, and the space is filled with ambient air. It is, however, also possible to have a shorter distance between the weather shield pane and the IGU and/or to provide an inert gas, such as argon, an aerogel, or a vacuum in the space between them.
- an inert gas such as argon, an aerogel, or a vacuum in the space between them.
- the weather shield pane may be provided as a unitary structure, which is detachably attached to the window frame. This may have the effect of providing for easy access to clean the IGU and/or be of advantage during installation of the skylight window, e.g. when positioning or attaching the window frame or when attaching roofing felt to cover a joint between the window frame and the roof structure.
- Mechanical fasteners or fittings are preferably used for fastening a weather shield pane to the window frame in a detachable manner.
- the skylight window further comprises a weather shield skirt extending along an edge of the weather shield pane.
- the weather shield skirt preferably extends toward the interior down to or past a most exterior surface of the frame side member.
- the weather shield skirt preferably extends along all sides of weather shield pane, i.e. surrounding the window frame on an outward side of all four sides of the window frame.
- the weather shield skirt may comprise an L-shaped profile, wherein one leg of the L-shape is attached to the exterior or interior side of the weather shield pane and the other extends down along an outer surface of the frame side member.
- Weather shield skirt may be manufactured from or include metal and/or may be attached to the weather shield pane by means of an adhesive.
- the translucent layers of the IGU may be of glass or a polymer, such as polycarbonate, and for most purposes they are preferably transparent.
- One or more of the layers may be laminated and/or tempered.
- a prior art skylight window 1 is shown installed on a flat roof 2 of a building and covering an opening (not shown) in the roof.
- the skylight window 1 comprises a weather shield 3 protecting a window portion 4, which includes an Insulating Glazing Unit (IGU) 5 and a frame 7 supporting the IGU.
- IGU Insulating Glazing Unit
- a roofing felt may in a conventional manner be positioned to seal the joint between the window frame 7 and the roof 2.
- an inclined curb flange 40 is provided on the window frame 7 for this purpose.
- the weather shield 3 is attached to the window frame 7 so as to protect the window portion 4 of the skylight window 1.
- the weather shield 3 comprises a transparent weather shield pane 8 and a weather shield skirt 9, which projects down towards the roof 2 along outer sides of the window frame 7 on all four sides of the window frame 7.
- the weather shield pane 8 is flat, but it may also be slightly curved.
- the entire window frame 7 is positioned above the exterior surface of the roof 2, said frame resting on the roof surface, but it may also be positioned so that a part of the window frame 7 is embedded in the roof, i.e. positioned below the exterior roof surface level.
- the space between the IGU 5 and the weather shield pane 8 may be sealed and filled with an inert gas to provide the skylight window with desired thermal insulating properties, but in the embodiments shown in the drawing the space is ventilated.
- the frame side member 10 of the window frame 7 of the prior art skylight window comprises a hollow-box structure, which can for example be made from polyvinylchloride (PVC) by extrusion, and blocks of insulating material 81 are inserted in some of the hollow boxes.
- PVC polyvinylchloride
- the weather shield pane 8 is attached to an exterior side 10t of the frame side member 10 and the IGU 5 is supported by a leg 72 of the window frame extending in an inwards direction.
- a sealing gasket 76 is arranged between the frame leg 72 and the interior major surface 5d of the IGU 5.
- a groove 50 is provided for receiving a lining panel (not shown).
- lining panels are used for covering the inwards facing surface of the opening in the roof structure, i.e. the surface extending between a ceiling on the interior side of the building and the skylight window, and will therefore not be described in further detail here.
- FIG. 3 a cross-sectional view corresponding to Fig. 2 but showing a window according to the invention is shown.
- the frame member etc. extending perpendicularly to the one shown, i.e. in the background in a true cross-section, have been removed for clarity reasons.
- the IGU 5 of the window in Fig. 3 is positioned considerably deeper in the window frame 7 and the width of the exposed frame surface 77, i.e. the distance between the lining panel reception groove 50 and the interior major surface 5d of the IGU is considerably smaller.
- the IGU is attached to the window frame 7 by a strip of adhesive material 78 replacing the sealing gasket 76 in the prior art window.
- the exposed frame surface 77 is composed of first section 77a adjacent to the groove 50 and a second section 77b adjacent to the IGU 5 meeting at an edge 73 and extending in continuation of each other, but it could have been straight or following a continuous curve.
- the total width, also called the overall width, of the exposed frame surface 77 measured perpendicular to the longitudinal direction L of the frame side member 10, i.e. in plane with the paper in Fig. 3 , is 36 mm, said first section 77a measuring 5 mm and said second section 77b measuring 31 mm. This corresponds to about 20% of the overall height H of the window frame 7.
- the deep position of the IGU compared to the prior art window in Fig. 2 provides improved thermal insulating properties and makes room for a screening device, such as a roller blind (not shown), to be mounted in the protected spacing between the weather shield pane 8 and the IGU 5.
- a screening device such as a roller blind (not shown)
- Fig. 4 showing a more detailed view of a window as in Fig. 3 , this may allow the load bearing frame side member 20 to be designed as a fairly slim L-shaped profile, where a block of insulating material 81 is arranged between the vertical leg 25 of the frame side member 10 and the IGU 5, but the space occupied by the block of insulating material 81 could also be occupied by other things, such as a screening device, a motor for driving a screening device, or a ventilation unit.
- the weather shield pane 8 is supported by a hollow frame extension profile 27 attached to the vertical leg 25 of the frame side member 10, but it could also have been supported directly on the load bearing frame side member 20.
- Cover members 80, 82 cover the frame extension profile 27 and the block of insulating material 81, respectively, protecting them from view and from UV radiation.
- weather shield skirt 9 is shown as attached to the exterior side of the weather shield pane 8 in Fig. 2 , it is here attached to the interior side of the weather shield.
- Fig. 5 shows a second embodiment of the invention, where the overall shape of the window frame 7 is the same as in Fig. 3 and Fig. 4 , but where the frame extension profile 27 and the cover member 82 have been replaced by one continuous stepped profile 14.
- the profile 14 supports the weather shield pane 8 and extends down to the IGU 5, where a leg 79 of the stepped profile 14 extends underneath the outermost edge of IGU.
- This embodiment allows the skylight window to also be provided in an openable version, where the IGU is attached to the stepped profile 14 instead of to the window frame 7 and where the stepped profile 14 is connected to the window frame 7 by one or more hinges (not shown). Is this way the same components can be used for both fixed and openable skylight windows.
- FIG. 6 A further embodiment of the invention is shown in Fig. 6 .
- the lining panel reception groove 50 is located higher on the frame side member 10 such that the main part of the window frame 7 is positioned below the IGU 5, but the exposed frame surface 77 remains substantially the same.
- the weather shield pane 8 is here curved and located closer to the IGU 5, and this skylight window too can be made openable by connecting the frame extension profile 27 to the load bearing frame side member 20 using one or more hinges (not shown), such that the frame extension profile 27 can be used as a sash.
- FIG. 7 A still further embodiment of the invention is shown in Fig. 7 .
- the exposed frame surface 77 has been inclined in the embodiments shown in Figs 3-6 , it is here composed of a horizontal first section 77a adjacent to the groove 50 and a vertical second section 77b adjacent to the IGU 5.
- weather shield pane 8 is here attached to the IGU 5 rather than to the window frame 7.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Abstract
Description
- The present invention relates to a skylight window for being installed in or on a roof of a building, wherein the skylight window comprises:
- a window frame having four frame side members delimiting a frame opening and defining a frame plane, and where at least some of said frame side members comprise a groove configured to receive an edge of a lining panel and extending in a longitudinal direction of the respective frame side member,
- an Insulating Glazing Unit (IGU) supported on the window frame and covering the frame opening with an exposed interior surface of the IGU extending between the frame side members, said IGU comprising at least two translucent layers with a sealed space between them, where an inert gas, such as argon or krypton, or a vacuum is present in the space(s) between the translucent layers, and
- a weather shield pane configured to protect a window portion of the skylight window, said window portion comprising the window frame and the IGU, and said weather shield pane being located at a distance from an exterior side of the IGU so that a space is present between them,
- where the window frame has an overall height in a height direction perpendicular to the frame plane, and where each frame side member has a longitudinal direction extending along a peripheral side of the IGU.
- The use of skylight windows originates from industry buildings, where it was desired to provide more daylight to the interior of the building in a cost-efficient way. Many industry buildings are made with substantially flat roofs and the most cost-efficient way to provide more daylight in such a building was to cut a hole in the roof and cover it with a translucent or transparent material. Over the years proper skylight windows were developed with a particular view to improving the water tightness by improving the exterior integration of skylight windows with the roofing covering of the roof structure and improving thermal insulation of the skylight window has also been a focus area. Interior integration with ceilings etc. has, however, not been given much attention, and it is also desired to increase the amount of daylight reaching the interior of the building relative to the pane area.
- With this background, it is therefore an object of the invention to provide to provide an alternative skylight window according to the introduction which with improved interior properties.
- This and further objects are achieved with a roof window of the kind mentioned in the introduction, which is furthermore characterised in that an exposed frame surface of the frame side member extends between the groove and the IGU, said exposed frame surface having a first edge extending in the longitudinal direction along the groove and a second edge extending in the longitudinal direction along an interior side of the IGU, and that the exposed frame surface has an overall width between the first edge and the second edge measured perpendicular to the longitudinal direction of 40 mm or less.
- By providing an exposed frame surface, which is 40 mm or less, the IGU comes very close to the lining panel, which covers the inwards facing surface created in the roof structure when making the opening in the roof. This has several advantages. Firstly, that the distance travelled by the daylight after passing through the IGU is low, potentially leading to an increased amount of light reaching the room below the skylight window. Secondly, that the majority of the window frame can be made from materials, which are not suitable for being exposed towards the interior of the building, for example because they are not resistant to UV radiation or not easily cleaned. Thirdly, that the skylight window itself appears less bulky when seen from the inside. Fourthly, that a possible difference between colour or texture of the exposed frame surface and of the lining panel will not be easily seen.
- The overall width is to be understood as the total distance between the first edge and the second edge measured along the exposed surface. As the exposed surface may be composed of two or more sections extending in continuation of each other, the width is not necessary measured along a straight line but may be the total of the widths of the two or more sections. Minor irregularities, such as holes for the reception of screws, pins, or like fasteners, are, however, not to be considered when determining the overall width.
- In one embodiment, the exposed frame surface has an overall width in the interval of 3-38 mm, specifically in the interval of 12-36 mm, and more specifically in the interval of 18-24 mm.
- It is presently preferred, that the exposed frame surface has an overall width between the first edge and the second edge measured perpendicular to the longitudinal direction being 30% or less of the overall frame height (H), such as 20% or less of the overall frame height (H).
- As also mentioned above the exposed frame surface may be curved and/or composed of two or more sections extending in continuation of each other when seen in a cross-section perpendicular to the longitudinal direction of the frame side member. This may allow the distance between the first edges of two frame side members located on opposite sides of the IGU to be larger than the distance between the second edges thereof. This means that the two lining panels attached to these side frame members will be slightly retracted in relation to the frame opening and that the area between the lining panels in parallel with the frame plane may be larger than the exposed interior surface of the IGU. This may contribute to increasing the amount of daylight reaching the room underneath the skylight window as less light will be blocked by the lining panel and as the exposed frame surface may reflect light into the room. Similar advantages may be achieved by the exposed frame surface being inclined with respect to the height direction so that the second edge is located at a distance from the first edge in a direction parallel to the frame plane. It is presently preferred that this distance is 15mm or less to achieve an optimal transition between the exposed frame surface and the lining panel.
- The exposed frame surface may be provided with light reflecting coating.
- In one embodiment, each frame side member comprises a first leg projecting in the height direction along an edge of the IGU and a second leg projecting substantially in parallel with the frame plane along an interior side of the IGU. This allows the IGU to be located deep in the window frame, the second legs serving only to support the IGU, while other features of the window frame can be associated with the first legs of the frame side members. As described above, a deep location of the IGU has advantages with respect to light admission but may also contribute to improved thermal insulating properties of the skylight window.
- The embodiment with a first leg and a second leg may result in each frame side member having a cross-sectional shape resembling the letter L in a plane extending perpendicular to the longitudinal direction. It is, however, also possible to provide each frame member with a third leg projecting opposite the second leg, i.e. away from the frame opening. Such a third leg may contribute to the stability of the window frame in the mounted state and/or be used for the attachment of a roofing material to the window frame. A third leg to which a roofing material is connected is also known as a curb flange and usually has a triangular cross-sectional shape in a plane perpendicular to the longitudinal direction.
- In one embodiment, the IGU extends beyond the groove in a direction parallel to the frame plane, so that the groove is located underneath an interior side of the IGU when seen in the height direction. This provides good thermal insulating properties as the IGU will usually provide better insulation than most common frame materials. Another potential advantage is that the edge of the IGU will be hidden from view from inside the building, which may not only be advantageous from an aesthetic point of view. It may also allow an increased inflow of light, since the distance keepers, sealings, and protective maskings usually found at the edges of an IGU will be located above the frame side members, not on the exposed interior surface of the IGU.
- The IGU may be connected to the window frame by an adhesive bond, such as an adhesive applied directly onto the window frame and/or the IGU or adhesive tape applied to one or both surfaces to be joined. It is also possible to use a glue or to locally soften the material of the window frame so that it may adhere to the surface of the IGU. Adhesion promoters may be applied to the window frame and/or the IGU, one example being the application of a masking on the IGU, another being a roughening of the surface of the frame side member to which the IGU is to be attached. The adhesive or glue bond may be supplemented with a mechanical retainment of the IGU. The adhesive bond provides better mechanical rigidity of the window by allowing a uniform transmission of loads from the IGU to the window frame, whereby the IGU will hinder deformation of the window frame. The adhesive bond also ensures a durable air tightness of the window by providing a continuous airtight connection along the periphery of the IGU. Furthermore, the adhesive bond enhances the burglary resistance as it will not be immediately possible for a burglar to detach the IGU from the window frame.
- The frame side member may in principle be made from any suitable material, but in one embodiment at least one of them comprises an extruded profile with hollow chambers, preferably made from polyvinylchloride (PVC), or a pultruded profile, made for example from polyurethane (PUR) reinforced with glass fibres. Insulating members, made for example from expanded polystyrene (EPS) or mineral wool may be arranged in the hollow chambers or recesses in the frame side members.
- The weather shield pane may be curved, forming a dome above the IGU and the window frame, protecting them from precipitation, dirt, etc., but it is also possible to use a planar weather shield pane. It may be of glass or clear polymer and may comprise only a single layer.
- In one embodiment the height of the space between the weather shield pane and the IGU is bigger than the height of the IGU measured in the height direction, and the space is filled with ambient air. It is, however, also possible to have a shorter distance between the weather shield pane and the IGU and/or to provide an inert gas, such as argon, an aerogel, or a vacuum in the space between them.
- The weather shield pane may be provided as a unitary structure, which is detachably attached to the window frame. This may have the effect of providing for easy access to clean the IGU and/or be of advantage during installation of the skylight window, e.g. when positioning or attaching the window frame or when attaching roofing felt to cover a joint between the window frame and the roof structure. Mechanical fasteners or fittings are preferably used for fastening a weather shield pane to the window frame in a detachable manner.
- In some embodiments, the skylight window further comprises a weather shield skirt extending along an edge of the weather shield pane. The weather shield skirt preferably extends toward the interior down to or past a most exterior surface of the frame side member. The weather shield skirt preferably extends along all sides of weather shield pane, i.e. surrounding the window frame on an outward side of all four sides of the window frame.
- The weather shield skirt may comprise an L-shaped profile, wherein one leg of the L-shape is attached to the exterior or interior side of the weather shield pane and the other extends down along an outer surface of the frame side member.
- Weather shield skirt may be manufactured from or include metal and/or may be attached to the weather shield pane by means of an adhesive.
- The translucent layers of the IGU may be of glass or a polymer, such as polycarbonate, and for most purposes they are preferably transparent. One or more of the layers may be laminated and/or tempered.
- In the following description embodiments of the invention will be described with reference to the schematic drawings, in which
-
Fig. 1 shows a perspective view of a skylight window, -
Fig. 2 shows a cross-sectional view along the line II-II inFig. 1 , -
Fig. 3 shows a cross-sectional view of a skylight window according to a first embodiment of the invention, -
Fig. 4 shows the cross-sectional view inFig. 3 with more details, -
Fig. 5 shows a cross-sectional view of a skylight window according to a second embodiment of the invention, -
Fig. 6 shows a cross-sectional view of a skylight window according to a third embodiment of the invention, and -
Fig. 7 shows a cross-sectional view of a skylight window according to a fourth embodiment of the invention. - Referring initially to
Figs 1 and 2 , a priorart skylight window 1 is shown installed on a flat roof 2 of a building and covering an opening (not shown) in the roof. Theskylight window 1 comprises a weather shield 3 protecting awindow portion 4, which includes an Insulating Glazing Unit (IGU) 5 and aframe 7 supporting the IGU. A roofing felt (not shown) may in a conventional manner be positioned to seal the joint between thewindow frame 7 and the roof 2. In this embodiment aninclined curb flange 40 is provided on thewindow frame 7 for this purpose. - The weather shield 3 is attached to the
window frame 7 so as to protect thewindow portion 4 of theskylight window 1. The weather shield 3 comprises a transparentweather shield pane 8 and a weather shield skirt 9, which projects down towards the roof 2 along outer sides of thewindow frame 7 on all four sides of thewindow frame 7. In this embodiment theweather shield pane 8 is flat, but it may also be slightly curved. - In
Fig. 1 , theentire window frame 7 is positioned above the exterior surface of the roof 2, said frame resting on the roof surface, but it may also be positioned so that a part of thewindow frame 7 is embedded in the roof, i.e. positioned below the exterior roof surface level. - The space between the
IGU 5 and theweather shield pane 8 may be sealed and filled with an inert gas to provide the skylight window with desired thermal insulating properties, but in the embodiments shown in the drawing the space is ventilated. - As is seen in
Fig. 2 theframe side member 10 of thewindow frame 7 of the prior art skylight window comprises a hollow-box structure, which can for example be made from polyvinylchloride (PVC) by extrusion, and blocks of insulatingmaterial 81 are inserted in some of the hollow boxes. - The
weather shield pane 8 is attached to anexterior side 10t of theframe side member 10 and theIGU 5 is supported by aleg 72 of the window frame extending in an inwards direction. A sealinggasket 76 is arranged between theframe leg 72 and the interiormajor surface 5d of theIGU 5. - On the interior surface 10a of the frame side member 10 a
groove 50 is provided for receiving a lining panel (not shown). As is well known to the skilled person, lining panels are used for covering the inwards facing surface of the opening in the roof structure, i.e. the surface extending between a ceiling on the interior side of the building and the skylight window, and will therefore not be described in further detail here. - When a lining panel is mounted in the lining
panel reception groove 50 only thesurface 77 of theframe side member 10 extending from the groove to the the interiormajor surface 5d of the IGU will be visible from the interior of the building on which theskylight window 1 is mounted. Thissurface 77 is referred to as the exposedframe surface 77 and is delimited by afirst edge 771 extending along thegroove 50 and a second edge 772 extending along the interior side of theIGU 5. - Turning now to
Fig. 3 , a cross-sectional view corresponding toFig. 2 but showing a window according to the invention is shown. In this figure as well as inFig. 2 andFigs 5-7 the frame member etc. extending perpendicularly to the one shown, i.e. in the background in a true cross-section, have been removed for clarity reasons. - Throughout this description, the same reference numbers will be used for features having substantially the same function, even if they are not identical, and only differences between the different embodiments will be described in detail.
- In comparison to the prior art window in
Fig. 2 , theIGU 5 of the window inFig. 3 is positioned considerably deeper in thewindow frame 7 and the width of the exposedframe surface 77, i.e. the distance between the liningpanel reception groove 50 and the interiormajor surface 5d of the IGU is considerably smaller. The IGU is attached to thewindow frame 7 by a strip ofadhesive material 78 replacing the sealinggasket 76 in the prior art window. - In this embodiment the exposed
frame surface 77 is composed offirst section 77a adjacent to thegroove 50 and asecond section 77b adjacent to theIGU 5 meeting at anedge 73 and extending in continuation of each other, but it could have been straight or following a continuous curve. - The total width, also called the overall width, of the exposed
frame surface 77 measured perpendicular to the longitudinal direction L of theframe side member 10, i.e. in plane with the paper inFig. 3 , is 36 mm, saidfirst section 77a measuring 5 mm and saidsecond section 77b measuring 31 mm. This corresponds to about 20% of the overall height H of thewindow frame 7. - The deep position of the IGU compared to the prior art window in
Fig. 2 provides improved thermal insulating properties and makes room for a screening device, such as a roller blind (not shown), to be mounted in the protected spacing between theweather shield pane 8 and theIGU 5. - With the exposed
frame surface 77 being comparatively short, most of thewindow frame 7 is hidden from view, which not only has aesthetic advantages, but also gives design freedom as described above. As is seen inFig. 4 , showing a more detailed view of a window as inFig. 3 , this may allow the load bearingframe side member 20 to be designed as a fairly slim L-shaped profile, where a block of insulatingmaterial 81 is arranged between thevertical leg 25 of theframe side member 10 and theIGU 5, but the space occupied by the block of insulatingmaterial 81 could also be occupied by other things, such as a screening device, a motor for driving a screening device, or a ventilation unit. - In this embodiment the
weather shield pane 8 is supported by a hollowframe extension profile 27 attached to thevertical leg 25 of theframe side member 10, but it could also have been supported directly on the load bearingframe side member 20. -
Cover members frame extension profile 27 and the block of insulatingmaterial 81, respectively, protecting them from view and from UV radiation. - Whereas the weather shield skirt 9 is shown as attached to the exterior side of the
weather shield pane 8 inFig. 2 , it is here attached to the interior side of the weather shield. -
Fig. 5 shows a second embodiment of the invention, where the overall shape of thewindow frame 7 is the same as inFig. 3 and Fig. 4 , but where theframe extension profile 27 and thecover member 82 have been replaced by one continuous steppedprofile 14. Theprofile 14 supports theweather shield pane 8 and extends down to theIGU 5, where aleg 79 of the steppedprofile 14 extends underneath the outermost edge of IGU. This embodiment allows the skylight window to also be provided in an openable version, where the IGU is attached to the steppedprofile 14 instead of to thewindow frame 7 and where the steppedprofile 14 is connected to thewindow frame 7 by one or more hinges (not shown). Is this way the same components can be used for both fixed and openable skylight windows. - A further embodiment of the invention is shown in
Fig. 6 . Here the liningpanel reception groove 50 is located higher on theframe side member 10 such that the main part of thewindow frame 7 is positioned below theIGU 5, but the exposedframe surface 77 remains substantially the same. - The
weather shield pane 8 is here curved and located closer to theIGU 5, and this skylight window too can be made openable by connecting theframe extension profile 27 to the load bearingframe side member 20 using one or more hinges (not shown), such that theframe extension profile 27 can be used as a sash. - A still further embodiment of the invention is shown in
Fig. 7 . Whereas the exposedframe surface 77 has been inclined in the embodiments shown inFigs 3-6 , it is here composed of a horizontalfirst section 77a adjacent to thegroove 50 and a verticalsecond section 77b adjacent to theIGU 5. - Moreover, the
weather shield pane 8 is here attached to theIGU 5 rather than to thewindow frame 7.
Claims (11)
- A skylight window (1) for being installed in or on a roof (2) of a building, wherein the skylight window (1) comprises:a window frame (7) having four frame side members (10) delimiting a frame opening and defining a frame plane, and where at least some of said frame side members comprise a groove (50) configured to receive an edge of a lining panel and extending in a longitudinal direction of the respective frame side member,an Insulating Glazing Unit (IGU) (5) supported on the window frame and covering the frame opening, said IGU comprising at least two translucent layers (5c-5e) with a sealed space between them, where an inert gas, such as argon or krypton, or a vacuum is present in the space(s) between the translucent layers, anda weather shield pane (3) configured to protect a window portion (4) of the skylight window (1), said window portion (4) comprising the window frame (7) and the IGU (5), and said weather shield pane being located at a distance from an exterior side of the IGU so that a space is present between them,where the window frame has an overall height (H) in a height direction perpendicular to the frame plane, and where each frame side member has a longitudinal direction extending along a peripheral side (5a) of the IGU,characterised in thatan exposed frame surface (77) of the frame side member extends between the groove (50) and the IGU (5), said exposed frame surface having a first edge (771) extending in the longitudinal direction along the groove and a second edge (773) extending in the longitudinal direction along an interior side of the IGU, and that the exposed frame surface (77) has an overall width between the first edge and the second edge measured perpendicular to the longitudinal direction of 40 mm or less.
- A skylight window according to claim 1, wherein the exposed frame surface is curved and/or composed of two or more sections extending in continuation of each other.
- A skylight window according to claim 1 or 2, wherein the exposed frame surface is inclined with respect to the height direction so that the second edge is located at a distance from the first edge in a direction parallel to the frame plane.
- A skylight window according to claim 3, wherein the distance between the first edge and the second edge in a direction parallel to the frame plane is 15mm or less.
- A skylight window according to one or more of the preceding claims, wherein each frame side member comprises a first leg projecting in the height direction along an edge of the IGU and a second leg projecting substantially in parallel with the frame plane along an interior side of the IGU.
- A skylight window according to 7, where each frame side member comprises a cross-sectional shape resembling the letter L in a plane extending perpendicular to the longitudinal direction.
- A skylight window according to claim 5 or 6, wherein the IGU extends beyond the groove in a direction parallel to the frame plane, so that the groove is located underneath an interior side of the IGU when seen in the height direction.
- A skylight window according to one or more of the preceding claims, wherein the IGU is connected to the window frame by an adhesive bond.
- A skylight window according to one or more of the preceding claims, wherein each frame side member comprises an extruded profile with hollow chambers, preferably made from polyvinylchloride (PVC), or a pultruded profile, made for example from polyurethane reinforced with glass fibres.
- A skylight window according to one or more of the preceding claims, wherein the height of the space between the weather shield pane and the IGU is bigger than the height of the IGU measured in the height direction, and wherein the space is filled with ambient air.
- A skylight window according to one or more of the preceding claims, wherein the exposed frame surface has an overall width between the first edge and the second edge measured perpendicular to the longitudinal direction being 30% or less of the overall frame height (H), such as 20% or less of the overall frame height (H).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20155247.8A EP3779090A1 (en) | 2020-02-03 | 2020-02-03 | A skylight window |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3779094A2 true EP3779094A2 (en) | 2021-02-17 |
EP3779094A3 EP3779094A3 (en) | 2021-04-07 |
Family
ID=69468360
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20155247.8A Pending EP3779090A1 (en) | 2020-02-03 | 2020-02-03 | A skylight window |
EP20210451.9A Pending EP3779094A3 (en) | 2020-02-03 | 2020-11-27 | A skylight window |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20155247.8A Pending EP3779090A1 (en) | 2020-02-03 | 2020-02-03 | A skylight window |
Country Status (1)
Country | Link |
---|---|
EP (2) | EP3779090A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4242396A1 (en) * | 2022-03-03 | 2023-09-13 | FAKRO PP Sp. z o.o. | Roof window with a glazing unit |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1029229B1 (en) * | 2021-03-22 | 2022-10-18 | Skylux N V | ROOF OR WINDOW ASSEMBLY WITH INSERT |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4972638A (en) * | 1989-04-21 | 1990-11-27 | Rolscreen Company | Skylight flashing |
GB2439319A (en) * | 2006-06-22 | 2007-12-27 | Metal Window Co Ltd | Rooflight comprising a water deflector |
EP2231956B1 (en) | 2007-12-20 | 2015-08-05 | VKR Holding A/S | A weather shield attached to a sash of a skylight window and use of it for a skylight window |
US20100269426A1 (en) | 2009-04-22 | 2010-10-28 | Crystalite Inc. | Glazed skylight assembly |
GB2492380B (en) * | 2011-06-30 | 2017-01-25 | The Metal Window Co Ltd | Window thermal shield |
EP2868831B1 (en) * | 2013-10-31 | 2016-08-10 | JET Tageslicht und RWA GmbH | Lighting dome, flap and/or smoke extraction device |
EP3101195A1 (en) * | 2015-06-01 | 2016-12-07 | FAKRO PP Sp. z o.o. | Rooflight with glazed unit |
EP3346071B1 (en) * | 2017-01-06 | 2021-03-10 | VKR Holding A/S | A window assembly |
PL126314U1 (en) * | 2017-04-28 | 2018-11-05 | Ryszard Florek | Flat roof window with external screen |
-
2020
- 2020-02-03 EP EP20155247.8A patent/EP3779090A1/en active Pending
- 2020-11-27 EP EP20210451.9A patent/EP3779094A3/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4242396A1 (en) * | 2022-03-03 | 2023-09-13 | FAKRO PP Sp. z o.o. | Roof window with a glazing unit |
Also Published As
Publication number | Publication date |
---|---|
EP3779094A3 (en) | 2021-04-07 |
EP3779090A1 (en) | 2021-02-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6401428B1 (en) | Fenestration sealed frame, insulating glazing panels | |
EP3911829B1 (en) | Building aperture cover with vig unit connected to fixation profile | |
US9016009B2 (en) | Pane module for use in a window | |
US4776141A (en) | Skylights | |
US4449340A (en) | Ventilating skylight | |
CA2142074E (en) | Bead for retaining and air sealing a windowpane, and window assembly therewith | |
EP2318634B1 (en) | Sealing membrane for sealing gaps between frames of a window and rough openings | |
EP3779094A2 (en) | A skylight window | |
US4780998A (en) | Decorative window assembly | |
US4570394A (en) | Ventilating skylight | |
WO2021156313A1 (en) | A skylight window | |
EP3101195A1 (en) | Rooflight with glazed unit | |
EP3795770B1 (en) | Skylight window | |
US20050000173A1 (en) | Skylight with sealing gasket | |
US20120079788A1 (en) | Window installation system and method | |
EP3779088B1 (en) | A skylight window with an igu close to the window frame | |
EP3779089B1 (en) | A skylight window frame for being installed in or on a roof of a building, a system comprising a skylight window and a method for fastening a skylight window frame | |
EP3795771B1 (en) | Skylight window | |
JPH05113078A (en) | Support structure of double glazing | |
US5993925A (en) | Protective windows for ornamental windows | |
EP3783164A1 (en) | A skylight window | |
EP3779093A1 (en) | A skylight window | |
CZ264096A3 (en) | Dormer-window | |
CN113802779A (en) | Panel system comprising a panel with a profile element surrounding a panel element | |
CN113802749A (en) | Panel for use in a panel system comprising a plurality of panels and method for manufacturing the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: E04D 13/03 20060101AFI20210304BHEP Ipc: E04D 13/035 20060101ALI20210304BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20211007 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |