EP1760220A1 - Roof window frame and method of manufacturing thereof - Google Patents
Roof window frame and method of manufacturing thereof Download PDFInfo
- Publication number
- EP1760220A1 EP1760220A1 EP05388077A EP05388077A EP1760220A1 EP 1760220 A1 EP1760220 A1 EP 1760220A1 EP 05388077 A EP05388077 A EP 05388077A EP 05388077 A EP05388077 A EP 05388077A EP 1760220 A1 EP1760220 A1 EP 1760220A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- window frame
- supporting member
- insulating
- members
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000010276 construction Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 9
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000011496 polyurethane foam Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000010097 foam moulding Methods 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 18
- 239000000463 material Substances 0.000 description 12
- 239000011810 insulating material Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 210000002268 wool Anatomy 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
- E04D13/031—Supports or connecting means for sky-lights of flat or domed shape characterised by a frame for connection to an inclined roof
Definitions
- the present invention relates to a roof window frame having top, bottom and side parts surrounding an opening, which side parts are made up as a sandwich construction comprising a first insulating member secured to a first supporting member on a side opposite the opening.
- Attics and lofts are increasingly being used for living, which requires installation of roof windows.
- Recently increasing prices of energy there is a growing demand for energy saving solutions for roof windows, and various solutions have been proposed in recent years.
- a frame box for roof windows is the subject of EP-B1-0 679 773 .
- This frame box comprises a window frame, which carries the window sash, and a window frame carrier, which carries the window frame and is insertable in the roof.
- the carrier is a sandwich construction made up of heat insulating material with a supporting member. This construction is depicted in Fig. 2 and will be described in more detail with reference to the drawing. It is found, however, that the insulating property of the frame is mediocre.
- US patent no. 6,263,624 discloses a skylight assembly comprising a curb of a plastic sheet material. The sheet further extends to form an integral surrounding flashing portion. Strips of rigid foam insulation material are adhesively attached to the inner peripheral portions of the curb, and wood trim strips are adhesively attached to the inner peripheral portions of the foam strips. This construction is a light-weight dome type of skylight without a separate frame, and is hence not suited for roof windows.
- a further example of related art is WO-A1-98/31896 , which relates to an insulation and installation frame for a roof window.
- An embodiment comprises insulating frame elements provided with reinforcing and supporting strips.
- a conventional roof window frame can be installed on the installation frame, whereby installation of the roof window is facilitated and insulation of the window construction in the installed position is improved.
- the installation frame is somewhat delicate, and in addition relatively bulky, so there is a risk that the installation frame will be damaged, thereby increasing the cost and time necessary for handling and installation of the frame.
- EP-A1-1 061 199 Another insulation and installation frame is described in EP-A1-1 061 199 .
- This document relates to an insulating installation frame for a roof window, where the frame is made up of insulating elements.
- the installation frame is adapted for attachment to a roof construction, and will provide a seat for the roof window for installation of the roof window.
- This insulation and installation frame is delicate and subject to damage.
- the roof window frame outlined in the introduction is characterized in that the first supporting member of at least the two side parts are secured to a second supporting member along a substantial length of the side parts.
- the second supporting member makes it possible to provide an integral, self-supporting window frame with improved insulating properties.
- a separate insulating and installation frame is not needed, and hence installation of the window frame is facilitated.
- the window frame can be produced cost efficiently in an automated process to be ready for installation in one operation. Further the resulting integral window frame is also relatively robust compared to the relatively delicate insulating and installation frames discussed above.
- the second supporting member of the roof window frame in a mounted position of the frame, is arranged exterior to a building in which the roof window frame is mounted.
- the second supporting member which will typically be made of a material having poor insulating properties, in a region exterior to the building, i.e. remote from the warm interior of the building, the second supporting member will only have a very limited effect on the insulating properties of the window frame. Further the amount of insulating material may be increased in regions that affect the insulating properties of the window frame.
- the second supporting member may be made from any suitable high-strength material, e.g. plastics or reinforced plastics, but it is presently preferred that the second supporting member is made of metal, such as a U-shaped steel profile, which will provide a relatively cheap and high-strength member.
- the U-shape inherently provides favourable strength properties and further allows hinges etc. to be accommodated within the supporting member.
- the U-shaped profile provides outer surfaces for attachment of mounting brackets and the like.
- the second supporting member may be massive or for example L-shaped, although such embodiments presently are considered to be less than optimum.
- the second supporting member will allow the dimension of the first supporting member to be reduced, thereby reducing the effect of heat conduction through the first supporting member, so the effect of the second supporting member as a thermal bridge is reduced. Further the second supporting member will relieve the first supporting member, whereby alternative materials can be used for the first supporting member, e.g. materials of reduced strength and low thermal conductivity, thereby improving the insulating properties of the window frame construction.
- the first supporting member may, on a side facing the opening, carry a second insulating member.
- the second insulating member may also provide be considered as trim, and may further provide an abutment face for a lining.
- the roof window frame further comprises a slat arranged interior to the first insulating member to facilitate aesthetical building-in of the window frame, e.g. by plaster.
- the present invention also relates to a method for manufacturing the window frame outlined above.
- the method comprises the steps of providing a set of first supporting members, and assembling the first supporting members to sub-frame of first supporting members surrounding an opening, providing a set of second supporting members at a side of the first supporting members opposite the opening along a substantial part of side parts of the window frame, and providing first insulating members at a side of the first supporting members opposite the opening.
- the step of providing first insulating members is performed by placing the sub-frame in a mould and foam moulding in-situ.
- This embodiment will especially be advantageous when manufacturing the window frame in relatively large numbers, as the production time per unit can be low, and the cost per unit hence also low. Furthermore a consistent quality can easily be achieved.
- first insulating members are cut in shape and attached to the first supporting member. This embodiment is particularly attractive when manufacturing relatively small numbers of window frames, as the cost of production tooling is small.
- the first insulating members are made of polyurethane foam having a density in the range of 100-150 kg/m 3 , which is found to provide advantageous results with regard to insulating properties and this material is easy to use in the production.
- a film is provided to the outer surface of the first insulating members to protect the surface of the first insulating members, although it may be superfluous depending on the material of the first insulating members and the environment in which the window frame is installed. If provided, the film would protect the first insulating members from exposure to e.g. moisture, and hence reduce the risk of deterioration of the first insulating members. Further the film would encapsulate the first insulating members and reduce the risk of release of any potentially harmful particles, such as fibres.
- a roof window is illustrated in perspective in Fig. 1.
- the roof window comprises a frame 1 and a sash 11 provided with a pane 13.
- FIG. 2 is a cross-sectional view of a side of the prior art window construction known from EP-B1-0 679 773 .
- This prior art construction comprises a mounting frame 140, which is a sandwich construction comprising a supporting member 103 and an insulating member 104.
- the mounting frame 140 is secured to the roof rafter 143 by means of a screw 130.
- the supporting member 103 of the mounting frame 140 is provided with a step 141 for supporting a window frame 102.
- the window frame 102 is secured to the mounting frame 140 by a screw 109, and a lining 120 is provided.
- a window frame construction according to an embodiment of the invention can be seen in the cross-sectional view of Fig. 3 and 4.
- the window frame 1 side part is a sandwich construction comprising a first insulating member 4 attached to a first supporting member 3.
- the window frame side parts are loaded more than the top and bottom frame parts, and further the space available for insulating material at the side parts is relatively restricted compared to the situation at the top and bottom parts, and hence the side parts normally have the greatest influence on the overall insulating property of the window frame.
- the first insulating member 4 is arranged to a side of the first supporting member 3 opposite the window frame opening.
- the first insulating member 4 consists of a foam material, such as polyurethane foam.
- Polyurethane foam having a density of 110-120 kg/m 3 was used with favourable result in a prototype of the invention.
- suitable materials for the first insulating member include common insulating materials, such as stone wool, glass wool or the like.
- plywood which is a suitably strong and relatively cheap material, although other materials could be envisaged, such as plastic materials, wood, fibre board etc.
- a board of plywood having a thickness of approximately 6-7 mm and a height of for example approximately 150 mm will normally provide a first supporting member 3 of sufficient thickness.
- the frame 1 further comprises an outwardly open U-shaped steel profile doing duty as a second supporting member 5 attached to the first supporting member 3.
- the second supporting member 5 is the primary supporting member of the frame 1 at the side parts and is arranged at the outer side of the frame in a frame region, which in the mounted state of the frame on a roof construction of a building is situated exterior to the building.
- the second supporting members extend for a substantial length of the side parts, such as at least 50% of the length of the side parts, at least 80%, or even 100%.
- the relative length of the second supporting member can be chosen dependent on the size and load of the window frame, as a large window frame carrying a heavy window sash will normally require a large relative length of the second supporting member, whereas a small window frame carrying a light window sash may require only a small relative length of the second supporting member.
- Suitable dimensions of the U-shaped profile made of 2 mm steel plate is a height of approximately 60 mm and a width of approximately 25-27 mm.
- the second supporting member 5 can be used for anchoring of mounting brackets (not shown) for installation to a roof structure of a building.
- the cavity 7 of the second supporting member 5 can advantageously accommodate a pivot hinge (not shown) for a moveable window sash.
- the second insulating member 2 may be a board of wood as illustrated in Fig. 3 or alternatively a board comprising a hard outer shell 9 of a plastic material, such as high density polyurethane, filled with an insulating core 10 of low density polyurethane foam.
- a plastic material such as high density polyurethane
- the member 2 comprises a groove 8 adapted for receiving a key of a lining for the opening.
- a slat 6 may be arranged to the interior side of the frame 1 at the first insulating member 4 to provide a suitable surface for plaster, if considered necessary or convenient.
- Fig. 5 illustrates a similar, but slightly different embodiment of the frame 1 in a cross-sectional view of a side part thereof.
- the frame 1 is shown with a sash 11 carrying an insulating pane 13 covering the opening 12 of the frame 1.
- a collar 14 is provided for connection to an underroof.
- a covering 15 is arranged to cover the outer surface of the sash 11 and frame 1.
- a bottom part of the frame 1 and sash 11 is seen in cross-sectional view in Fig. 6.
- the bottom part comprises a first insulating member 4, a first supporting member 3 and a second insulating member 2.
- a second supporting member will normally not be necessary to provide a frame bottom part of sufficient strength, but can of course be provided if it is considered convenient.
- the bottom part may be provided as a massive part or a sort of sandwich construction as illustrated.
- a top part of the frame 1 and sash 11 is seen in cross-section in Fig. 7.
- the top part comprises a first insulating member 4, a first supporting member 3 and a second insulating member 2.
- a second supporting member will normally not be necessary to provide a frame top part of sufficient strength, but can of course be provided if it is considered convenient.
- the top part may be provided as a massive part or a sort of sandwich construction as illustrated.
- a housing 14 for a roller shutter 15 may be integrated at the frame top part, and a guiding rail 16 may be arranged for guiding the roller shutter 15.
- Such a roller shutter 15 may be provided initially or be retrofitted to an installed window.
- Fig. 8 is a cross-sectional view of a side part of a window frame
- FIG. 9 A plot of isotherms 17 in a cross-sectional view of a side part of the window can be seen in Fig. 9. It is evident to the skilled person that the isotherms 17 follow advantageous paths.
- the second supporting member 7 is positioned in an exterior region of the frame 1, i.e. a relatively cold region of the construction, and hence the relatively poor insulating properties of the second supporting member 7 does not influence the insulating properties of the window construction negatively in any serious degree. This is illustrated by the relatively smooth course of the isotherms in the first insulating member 4.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Wing Frames And Configurations (AREA)
- Door And Window Frames Mounted To Openings (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Building Environments (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Description
- The present invention relates to a roof window frame having top, bottom and side parts surrounding an opening, which side parts are made up as a sandwich construction comprising a first insulating member secured to a first supporting member on a side opposite the opening.
- Attics and lofts are increasingly being used for living, which requires installation of roof windows. With increasing prices of energy there is a growing demand for energy saving solutions for roof windows, and various solutions have been proposed in recent years.
- A frame box for roof windows is the subject of
EP-B1-0 679 773 . This frame box comprises a window frame, which carries the window sash, and a window frame carrier, which carries the window frame and is insertable in the roof. The carrier is a sandwich construction made up of heat insulating material with a supporting member. This construction is depicted in Fig. 2 and will be described in more detail with reference to the drawing. It is found, however, that the insulating property of the frame is mediocre. -
US patent no. 6,263,624 discloses a skylight assembly comprising a curb of a plastic sheet material. The sheet further extends to form an integral surrounding flashing portion. Strips of rigid foam insulation material are adhesively attached to the inner peripheral portions of the curb, and wood trim strips are adhesively attached to the inner peripheral portions of the foam strips. This construction is a light-weight dome type of skylight without a separate frame, and is hence not suited for roof windows. - A further example of related art is
WO-A1-98/31896 - Another insulation and installation frame is described in
EP-A1-1 061 199 . This document relates to an insulating installation frame for a roof window, where the frame is made up of insulating elements. The installation frame is adapted for attachment to a roof construction, and will provide a seat for the roof window for installation of the roof window. This insulation and installation frame is delicate and subject to damage. - Although these known constructions are all steps in the right direction, they all have some drawbacks and they appear as half measures resulting in sub-optimization of the insulating properties.
- It is an object of the present invention to provide a roof window frame with improved insulating properties.
- To meet this object, the roof window frame outlined in the introduction is characterized in that the first supporting member of at least the two side parts are secured to a second supporting member along a substantial length of the side parts. The second supporting member makes it possible to provide an integral, self-supporting window frame with improved insulating properties. Hereby a separate insulating and installation frame is not needed, and hence installation of the window frame is facilitated. The window frame can be produced cost efficiently in an automated process to be ready for installation in one operation. Further the resulting integral window frame is also relatively robust compared to the relatively delicate insulating and installation frames discussed above.
- In an embodiment of the invention, the second supporting member of the roof window frame, in a mounted position of the frame, is arranged exterior to a building in which the roof window frame is mounted. By arranging the second supporting member, which will typically be made of a material having poor insulating properties, in a region exterior to the building, i.e. remote from the warm interior of the building, the second supporting member will only have a very limited effect on the insulating properties of the window frame. Further the amount of insulating material may be increased in regions that affect the insulating properties of the window frame.
- The second supporting member may be made from any suitable high-strength material, e.g. plastics or reinforced plastics, but it is presently preferred that the second supporting member is made of metal, such as a U-shaped steel profile, which will provide a relatively cheap and high-strength member. The U-shape inherently provides favourable strength properties and further allows hinges etc. to be accommodated within the supporting member. Moreover the U-shaped profile provides outer surfaces for attachment of mounting brackets and the like. Alternatively the second supporting member may be massive or for example L-shaped, although such embodiments presently are considered to be less than optimum. The second supporting member will allow the dimension of the first supporting member to be reduced, thereby reducing the effect of heat conduction through the first supporting member, so the effect of the second supporting member as a thermal bridge is reduced. Further the second supporting member will relieve the first supporting member, whereby alternative materials can be used for the first supporting member, e.g. materials of reduced strength and low thermal conductivity, thereby improving the insulating properties of the window frame construction.
- To further increase the insulating capabilities of the roof window frame the first supporting member may, on a side facing the opening, carry a second insulating member. The second insulating member may also provide be considered as trim, and may further provide an abutment face for a lining.
- In an embodiment the roof window frame further comprises a slat arranged interior to the first insulating member to facilitate aesthetical building-in of the window frame, e.g. by plaster.
- The present invention also relates to a method for manufacturing the window frame outlined above. The method comprises the steps of providing a set of first supporting members, and assembling the first supporting members to sub-frame of first supporting members surrounding an opening, providing a set of second supporting members at a side of the first supporting members opposite the opening along a substantial part of side parts of the window frame, and providing first insulating members at a side of the first supporting members opposite the opening.
- In an easily automated embodiment, the step of providing first insulating members is performed by placing the sub-frame in a mould and foam moulding in-situ. This embodiment will especially be advantageous when manufacturing the window frame in relatively large numbers, as the production time per unit can be low, and the cost per unit hence also low. Furthermore a consistent quality can easily be achieved.
- In an alternative embodiment, the first insulating members are cut in shape and attached to the first supporting member. This embodiment is particularly attractive when manufacturing relatively small numbers of window frames, as the cost of production tooling is small.
- According to an embodiment, the first insulating members are made of polyurethane foam having a density in the range of 100-150 kg/m3, which is found to provide advantageous results with regard to insulating properties and this material is easy to use in the production.
- In an embodiment a film is provided to the outer surface of the first insulating members to protect the surface of the first insulating members, although it may be superfluous depending on the material of the first insulating members and the environment in which the window frame is installed. If provided, the film would protect the first insulating members from exposure to e.g. moisture, and hence reduce the risk of deterioration of the first insulating members. Further the film would encapsulate the first insulating members and reduce the risk of release of any potentially harmful particles, such as fibres.
- In the following the invention will be described in more detail by way of example and with reference to the accompanying drawing, in which:
- Fig. 1 is a perspective view of a roof window,
- Fig. 2 is a cross-sectional view of a prior art installation frame,
- Fig. 3 is a cross-sectional view of a side part of an embodiment of a window frame according to the invention,
- Fig. 4 is a cross-sectional view corresponding to Fig. 3 of an alternative embodiment of the invention,
- Fig. 5 is a cross-sectional view of a side part according to another embodiment,
- Fig. 6 is a cross-sectional view of a bottom part of a frame according to the invention,
- Fig. 7 is a cross-sectional view of a top part,
- Fig. 8 is a cross-sectional view of a side part, and
- Fig. 9 is a cross-sectional view similar to Fig. 8 with isotherms plotted through the side part.
- A roof window is illustrated in perspective in Fig. 1. The roof window comprises a
frame 1 and asash 11 provided with apane 13. - A prior art window construction is illustrated in Fig. 2, which is a cross-sectional view of a side of the prior art window construction known from
EP-B1-0 679 773 . This prior art construction comprises amounting frame 140, which is a sandwich construction comprising a supportingmember 103 and aninsulating member 104. Themounting frame 140 is secured to theroof rafter 143 by means of ascrew 130. The supportingmember 103 of the mountingframe 140 is provided with astep 141 for supporting awindow frame 102. Thewindow frame 102 is secured to the mountingframe 140 by ascrew 109, and alining 120 is provided. - A window frame construction according to an embodiment of the invention can be seen in the cross-sectional view of Fig. 3 and 4. The
window frame 1 side part is a sandwich construction comprising a first insulatingmember 4 attached to a first supportingmember 3. Commonly the window frame side parts are loaded more than the top and bottom frame parts, and further the space available for insulating material at the side parts is relatively restricted compared to the situation at the top and bottom parts, and hence the side parts normally have the greatest influence on the overall insulating property of the window frame. - The first insulating
member 4 is arranged to a side of the first supportingmember 3 opposite the window frame opening. Typically the first insulatingmember 4 consists of a foam material, such as polyurethane foam. Polyurethane foam having a density of 110-120 kg/m3 was used with favourable result in a prototype of the invention. The skilled person will however appreciate that other suitable materials for the first insulating member include common insulating materials, such as stone wool, glass wool or the like. For the first supportingmember 3, it is presently preferred to use plywood, which is a suitably strong and relatively cheap material, although other materials could be envisaged, such as plastic materials, wood, fibre board etc. A board of plywood having a thickness of approximately 6-7 mm and a height of for example approximately 150 mm will normally provide a first supportingmember 3 of sufficient thickness. - The
frame 1 further comprises an outwardly open U-shaped steel profile doing duty as a second supportingmember 5 attached to the first supportingmember 3. The second supportingmember 5 is the primary supporting member of theframe 1 at the side parts and is arranged at the outer side of the frame in a frame region, which in the mounted state of the frame on a roof construction of a building is situated exterior to the building. The second supporting members extend for a substantial length of the side parts, such as at least 50% of the length of the side parts, at least 80%, or even 100%. The relative length of the second supporting member can be chosen dependent on the size and load of the window frame, as a large window frame carrying a heavy window sash will normally require a large relative length of the second supporting member, whereas a small window frame carrying a light window sash may require only a small relative length of the second supporting member. Suitable dimensions of the U-shaped profile made of 2 mm steel plate is a height of approximately 60 mm and a width of approximately 25-27 mm. - The second supporting
member 5 can be used for anchoring of mounting brackets (not shown) for installation to a roof structure of a building. Thecavity 7 of the second supportingmember 5 can advantageously accommodate a pivot hinge (not shown) for a moveable window sash. - On the side of the first supporting
member 3 facing the opening of thewindow frame 1, the first supportingmember 3 carries a second insulatingmember 2. The second insulatingmember 2 may be a board of wood as illustrated in Fig. 3 or alternatively a board comprising a hardouter shell 9 of a plastic material, such as high density polyurethane, filled with an insulatingcore 10 of low density polyurethane foam. Common to the embodiments of the insulatingmember 2 illustrated in Fig. 3 and 4 is that themember 2 comprises agroove 8 adapted for receiving a key of a lining for the opening. - As illustrated a
slat 6 may be arranged to the interior side of theframe 1 at the first insulatingmember 4 to provide a suitable surface for plaster, if considered necessary or convenient. - Fig. 5 illustrates a similar, but slightly different embodiment of the
frame 1 in a cross-sectional view of a side part thereof. Theframe 1 is shown with asash 11 carrying an insulatingpane 13 covering theopening 12 of theframe 1. Acollar 14 is provided for connection to an underroof. A covering 15 is arranged to cover the outer surface of thesash 11 andframe 1. - A bottom part of the
frame 1 andsash 11 is seen in cross-sectional view in Fig. 6. The bottom part comprises a first insulatingmember 4, a first supportingmember 3 and a second insulatingmember 2. A second supporting member will normally not be necessary to provide a frame bottom part of sufficient strength, but can of course be provided if it is considered convenient. The bottom part may be provided as a massive part or a sort of sandwich construction as illustrated. - A top part of the
frame 1 andsash 11 is seen in cross-section in Fig. 7. The top part comprises a first insulatingmember 4, a first supportingmember 3 and a second insulatingmember 2. A second supporting member will normally not be necessary to provide a frame top part of sufficient strength, but can of course be provided if it is considered convenient. The top part may be provided as a massive part or a sort of sandwich construction as illustrated. Ahousing 14 for aroller shutter 15 may be integrated at the frame top part, and a guidingrail 16 may be arranged for guiding theroller shutter 15. Such aroller shutter 15 may be provided initially or be retrofitted to an installed window. - Fig. 8 is a cross-sectional view of a side part of a window frame
- 1. The second supporting
member 7 may accommodate aspring 18 serving as lifting assistance means for the sash. Thespring 18 is well protected in the U-shaped steel profile, and hidden, so thespring 18 does not negatively affect the appearance of the window. - A plot of
isotherms 17 in a cross-sectional view of a side part of the window can be seen in Fig. 9. It is evident to the skilled person that theisotherms 17 follow advantageous paths. The second supportingmember 7 is positioned in an exterior region of theframe 1, i.e. a relatively cold region of the construction, and hence the relatively poor insulating properties of the second supportingmember 7 does not influence the insulating properties of the window construction negatively in any serious degree. This is illustrated by the relatively smooth course of the isotherms in the first insulatingmember 4.
Claims (10)
- A roof window frame (1) having top, bottom and side parts surrounding an opening, which side parts are made up as a sandwich construction comprising a first insulating member (4) secured to a first supporting member (3) on a side opposite the opening, characterized in that the first supporting member (3) is secured to a second supporting member (5) along a substantial length of the side parts.
- A roof window frame (1) according to claim 1, wherein the second supporting member (5) of the roof window frame (1), in a mounted position of the frame, is arranged exterior to a building in which the roof window frame (1) is mounted.
- A roof window frame (1) according to claim 1 or 2, wherein the second supporting member (5) is made of metal, such as a U-shaped steel profile.
- A roof window frame (1) according to any of the claims above, wherein the first supporting member (3), on a side facing the opening, carries a second insulating member (2).
- A roof window frame (1) according to any of the claims above, further comprising a slat (6) arranged interior to the first insulating member (4).
- A method for manufacturing a window frame according to any of the claims above, characterized in that the method comprises the steps of providing a set of first supporting members, and assembling the first supporting members to sub-frame of first supporting members surrounding an opening,
providing a set of second supporting members at a side of the first supporting members opposite the opening along a substantial part of side parts of the window frame, and
providing first insulating members at a side of the first supporting members opposite the opening. - A method according to claim 6, wherein the step of providing first insulating members is performed by placing the sub-frame in a mould and foam moulding in-situ.
- A method according to claim 6, wherein the first insulating members are cut in shape and attached to the first supporting member.
- A method according to any of the claims 6-8, wherein the first insulating members are made of polyurethane foam having a density in the range of 100-150 kg/m3.
- A method according to any of the claims 6-9, wherein a film is provided to the outer surface of the first insulating members.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05388077A EP1760220B1 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and method of manufacturing thereof |
DE602005014977T DE602005014977D1 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and its manufacturing process |
EP09160736A EP2088256B1 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and method of manufacturing thereof |
PL09160736T PL2088256T3 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and method of manufacturing thereof |
AT09160736T ATE555262T1 (en) | 2005-09-05 | 2005-09-05 | ROOF WINDOW FRAMES AND PRODUCTION PROCESS THEREOF |
AT05388077T ATE434094T1 (en) | 2005-09-05 | 2005-09-05 | ROOF WINDOW FRAME AND ITS MANUFACTURING PROCESS |
PL05388077T PL1760220T3 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and method of manufacturing thereof |
ES09160736T ES2385177T3 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05388077A EP1760220B1 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and method of manufacturing thereof |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09160736A Division EP2088256B1 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and method of manufacturing thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1760220A1 true EP1760220A1 (en) | 2007-03-07 |
EP1760220B1 EP1760220B1 (en) | 2009-06-17 |
Family
ID=35589664
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05388077A Not-in-force EP1760220B1 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and method of manufacturing thereof |
EP09160736A Not-in-force EP2088256B1 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and method of manufacturing thereof |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09160736A Not-in-force EP2088256B1 (en) | 2005-09-05 | 2005-09-05 | Roof window frame and method of manufacturing thereof |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP1760220B1 (en) |
AT (2) | ATE555262T1 (en) |
DE (1) | DE602005014977D1 (en) |
ES (1) | ES2385177T3 (en) |
PL (2) | PL2088256T3 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2466032A1 (en) * | 2010-12-17 | 2012-06-20 | VKR Holding A/S | An insulating member comprising two elements of different material and a method for insulating a window in an inclined roof structure with this insulating member |
EP2537995A1 (en) * | 2011-06-21 | 2012-12-26 | Keylite Roof Windows | An insulated roof window |
EP2843150B1 (en) | 2013-08-28 | 2015-12-23 | FAKRO PP Sp. z o.o. | Window frame with fitting for roof window |
EP3000949A1 (en) * | 2011-10-04 | 2016-03-30 | VKR Holding A/S | A frame for a window and a method for making a frame |
EP3128097A1 (en) * | 2015-08-04 | 2017-02-08 | VKR Holding A/S | An insulating member and a method for insulating a roof window |
EP3263797A1 (en) * | 2016-07-01 | 2018-01-03 | VKR Holding A/S | A roof window and a sloping roof structure |
US10513878B2 (en) | 2017-02-15 | 2019-12-24 | Vkr Holding A/S | Method for attaching a pane element to a sash and a pane module including a pane element |
EP3783161A1 (en) * | 2020-02-03 | 2021-02-24 | VKR Holding | A skylight window |
WO2021080445A1 (en) * | 2019-10-24 | 2021-04-29 | Glogowski Henryk | Roof window with window leaf reinforcement |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3417527A (en) * | 1967-01-12 | 1968-12-24 | Brunswick Corp | Skylight dome |
FR2697272A1 (en) * | 1992-10-22 | 1994-04-29 | Haras Ste Ind | Double skinned metal curb for domed skylight - with insulation between the two skins and block attached to inner edges of two skins forming a cross bar |
EP0679773A1 (en) * | 1994-04-26 | 1995-11-02 | ROTO FRANK Aktiengesellschaft | Skylight frame |
US6052956A (en) * | 1997-01-02 | 2000-04-25 | Fox Lite, Inc. | Skylight assembly |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH674545A5 (en) * | 1988-02-19 | 1990-06-15 | Marquart Daecher Ag | Skylight-installation equipment - comprises hollow top and bottom frames fitting together and containing insulating material |
US6263624B1 (en) | 1997-01-02 | 2001-07-24 | Fox Lite, Inc. | Skylight assembly |
ATE222982T1 (en) | 1997-01-14 | 2002-09-15 | Vkr Holding As | INSULATION AND INSTALLATION FRAME FOR A SKYLIGHT AND METHOD FOR INSTALLING A SKYLIGHT WITH SUCH FRAME |
DK199900873A (en) | 1999-06-18 | 2001-04-02 | Vkr Holding As | Insulation frame for a skylight |
-
2005
- 2005-09-05 ES ES09160736T patent/ES2385177T3/en active Active
- 2005-09-05 EP EP05388077A patent/EP1760220B1/en not_active Not-in-force
- 2005-09-05 PL PL09160736T patent/PL2088256T3/en unknown
- 2005-09-05 PL PL05388077T patent/PL1760220T3/en unknown
- 2005-09-05 AT AT09160736T patent/ATE555262T1/en active
- 2005-09-05 EP EP09160736A patent/EP2088256B1/en not_active Not-in-force
- 2005-09-05 AT AT05388077T patent/ATE434094T1/en not_active IP Right Cessation
- 2005-09-05 DE DE602005014977T patent/DE602005014977D1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3417527A (en) * | 1967-01-12 | 1968-12-24 | Brunswick Corp | Skylight dome |
FR2697272A1 (en) * | 1992-10-22 | 1994-04-29 | Haras Ste Ind | Double skinned metal curb for domed skylight - with insulation between the two skins and block attached to inner edges of two skins forming a cross bar |
EP0679773A1 (en) * | 1994-04-26 | 1995-11-02 | ROTO FRANK Aktiengesellschaft | Skylight frame |
US6052956A (en) * | 1997-01-02 | 2000-04-25 | Fox Lite, Inc. | Skylight assembly |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2466032A1 (en) * | 2010-12-17 | 2012-06-20 | VKR Holding A/S | An insulating member comprising two elements of different material and a method for insulating a window in an inclined roof structure with this insulating member |
EP3181776A1 (en) * | 2010-12-17 | 2017-06-21 | VKR Holding A/S | A flashing and a tile supprort for a roof window |
EP2537995A1 (en) * | 2011-06-21 | 2012-12-26 | Keylite Roof Windows | An insulated roof window |
US20120324809A1 (en) * | 2011-06-21 | 2012-12-27 | John Duffin | Insulated roof window |
EP3000949A1 (en) * | 2011-10-04 | 2016-03-30 | VKR Holding A/S | A frame for a window and a method for making a frame |
EP2843150B1 (en) | 2013-08-28 | 2015-12-23 | FAKRO PP Sp. z o.o. | Window frame with fitting for roof window |
EP3128097A1 (en) * | 2015-08-04 | 2017-02-08 | VKR Holding A/S | An insulating member and a method for insulating a roof window |
EP3263797A1 (en) * | 2016-07-01 | 2018-01-03 | VKR Holding A/S | A roof window and a sloping roof structure |
US10513878B2 (en) | 2017-02-15 | 2019-12-24 | Vkr Holding A/S | Method for attaching a pane element to a sash and a pane module including a pane element |
WO2021080445A1 (en) * | 2019-10-24 | 2021-04-29 | Glogowski Henryk | Roof window with window leaf reinforcement |
EP3783161A1 (en) * | 2020-02-03 | 2021-02-24 | VKR Holding | A skylight window |
Also Published As
Publication number | Publication date |
---|---|
EP2088256B1 (en) | 2012-04-25 |
EP1760220B1 (en) | 2009-06-17 |
PL2088256T3 (en) | 2012-09-28 |
ATE434094T1 (en) | 2009-07-15 |
PL1760220T3 (en) | 2009-11-30 |
ATE555262T1 (en) | 2012-05-15 |
ES2385177T3 (en) | 2012-07-19 |
DE602005014977D1 (en) | 2009-07-30 |
EP2088256A1 (en) | 2009-08-12 |
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