Method for installing a roof window, kit used in the method, and roof window

Abstract

A method for installing a roof window (1) in a roof structure (11) comprising roof material (112), the roof window comprising a frame (2), a sash (3) carrying pane elements (4), wherein the method comprises the steps of: A) arranging the roof window (1) in an opening in the roof structure (11), B) arranging a plurality of waterproofing members such that they cover the joint between the frame (2) of the roof window (1) and the roof structure (11), wherein a top waterproofing member (1011) extends along a top frame member (21), a bottom waterproofing member (1014) extends along a bottom frame member (24), and at least two side waterproofing members (1012, 1013) extend along side frame members (22, 23), and during step B) a flange (1017) of at least one side waterproofing member (1012, 1013) is inserted into a waterproofing member receiving recess (85) in an outer side (20o) of at least one side frame member (22, 23), the waterproofing member receiving recess extending in the length direction (L) of the side frame member.

Description

TECHNICAL FIELD

[0001] The invention relates to a method for installing a roof window in a roof structure comprising a roof material, the roof window comprising a frame, a sash carrying a pane element, and the frame comprising a top frame member, two side frame members and a bottom frame member, the frame members together defining a frame opening and a frame plane, and each frame member extending in a length direction and each frame member having an outer side facing away from the frame opening, wherein the method comprises the steps of: A) arranging the roof window in an opening in the roof structure; and B) arranging a plurality of waterproofing members such that they cover the joint between the frame of the roof window and the roof structure, wherein a top waterproofing member extends along the top frame member, a bottom waterproofing member extends along the bottom frame member, and at least two side waterproofing members extend along the side frame members, each waterproofing member being arranged to have an inner section adjacent to the frame member and an outer section extending away from the inner section and from the frame. The invention also relates to a kit for use in the method and to a roof window. BACKGROUND

[0002] When installing a window in a roof structure of a building, it is necessary to make an opening in the roof structure and subsequently to re-establish the weather resistance of the building that was originally provided by the roof structure. For this purpose, the joint between the roof window and the roof structure is covered by a covering assembly comprising waterproofing members and cladding members. In order to achieve optimal weather resistance, the covering assembly must be installed correctly and subsequently remains in place even during high winds and when subjected to large temperature variations. SUMMARY

[0003] In this context, it is therefore an object of the invention to provide an improved method for installing a roof window with a covering assembly and a roof window with an improved covering assembly.

[0004] This and other objects are achieved by the method of the type mentioned in the introduction, which method is further characterized in that, during step B), a flange of at least one side waterproofing member is inserted into a waterproofing-receiving recess in the outer side of at least one side frame member, the waterproofing-receiving recess extending in the length direction of the side frame member.

[0005] By inserting the flange of the side water barrier member in one or more water barrier member receiving recesses, such as grooves, extending in the length direction of the side frame member, the side water barrier member can be precisely arranged in the intended height in the height direction extending perpendicular to the frame plane. This ensures that the side water barrier member is arranged in the intended height relative to the roof structure and can also contribute to the correct arrangement of adjacent water barrier members relative to each other. As is known to the person skilled in the art, adjacent water barrier members usually overlap and the close contact between the overlapping parts of the water barrier members can contribute to the tightness of the completed covering assembly. For this purpose, two or more water barrier members can be arranged such that their flanges protrude into the same water barrier member receiving recess and such that the flanges overlap in the water barrier member receiving recess.

[0006] It is currently considered advantageous that the water barrier member is displaced in a direction parallel to the frame plane for inserting the flange into the water barrier member receiving recess. For this purpose, the flange extends in the installed state in a direction parallel to the frame plane. This will for example allow the flange on the corner section of the top water barrier member to be inserted into the same water barrier member receiving recess in the side frame member as the side water barrier member is inserted into by displacement of the top water barrier member in a direction parallel to the side frame member. However, other insertion angles are also possible, which for example depend on the shape of the side water barrier member and the depth of the roof window in the roof structure, including a swing movement, i.e. a turning of the side water barrier member about the length direction during insertion.

[0007] The water barrier member receiving recesses can be provided in a conventional frame, such as a wooden frame member, a frame member made of a wood-based core encapsulated in a polymer or a frame member made by extrusion, but also a frame can be provided with engagement units and the water barrier member receiving recesses are formed in the frame. The engagement units can for example be elongated members, such as rails, which are provided on the outer sides of the conventional frame members and extend in the length direction of the conventional frame members.

[0008] In one embodiment, the method further comprises the step of C) shaping the outer sections of the side flashing members so that they match the shape of the roof structure and / or the roof material. Thus, the side flashing can for example be provided with outer sections extending perpendicular to the flanges, and arranged with outer sections initially extending perpendicular to the frame plane. This can for example be advantageous in a roof with flat roof material, such as slabs, where it is common practice to use a number of smaller side flashing members arranged alternating with the slabs of the roof material. The slabs of the roof material can then be arranged while the outer sections protrude upwards perpendicular to the frame plane and the roof plane, and the outer sections can then be folded down onto the slabs of the roof material and shaped to follow the slabs of the roof material exactly. In this way, not only can natural variations in the shape of the roof material be compensated for, but also minor differences in the position of the roof material relative to the roof window and thus the height of the flashing receiving recess of the flashing, which can for example be caused by different building traditions, such as the use of different sizes of slats in different countries. The shaping of the outer sections can also be advantageous in the case of a roof with a relief roof material, such as tiles, in which the side flashing members will normally protrude below the roof material. The shaping can then be used to adapt the shape of the side flashing members to the shape of the roof structure supporting the roof material.

[0009] The shaping can be done by hand or using a tool, such as a rubber hammer, depending on the material used for the flashing members. Flashing members made of aluminium can normally be deformed simply by pushing them firmly against the roof material and / or the roof structure by hand.

[0010] The top flashing member and / or the bottom flashing member can be arranged with corner sections extending in continuation of the side flashing members when viewed in the direction of the inclination of the roof structure, and it can also be advantageous to shape such corner sections as described above with reference to the side flashing members.

[0011] In one embodiment, three or more side flashing members are inserted into the flashing receiving recess in the outer side of each side frame member, and each side flashing member is arranged so that it overlaps another side flashing member. In this case, a continuous groove extending along the length of the side frame member can be formed if the inner section of each side flashing member comprises a groove extending in the length direction, and the groove has the same depth along the entire extension of the side flashing member and in all side flashing members. From a distance, the groove can appear to be formed by a single side flashing member, for example if viewed by a person standing on the ground and looking upwards at the roof.

[0012] To facilitate installation of the waterproofing member, the flange can comprise a marking indicating an intended insertion depth of the flange into the waterproofing member receiving recess. During installation, displacement of the waterproofing member continues until the flange is inserted in the waterproofing member receiving recess so deep that the marking reaches or is hidden by the side frame member. The marking can for example be a printed indication on the flange, but can also be in the form of a perforation or a protrusion on the flange. The perforation can have the additional advantage of reducing heat transfer via the flange. A click function can also be provided, which provides an audible and / or tactile feedback when proper insertion has been achieved.

[0013] Alternatively or additionally, if the inner section of the side waterproofing member comprises a groove extending in the length direction and configured for extending between the frame and the roof material along the side frame member in the installed state, insertion of the flange can continue until the groove engages with the outer side of the side frame member.

[0014] The method can comprise the further step D) of displacing the side waterproofing member in a direction parallel to the length direction of the side frame member, if applicable, after step B) and before step C). This step can be performed to achieve an overlap between the waterproofing members, for example for interconnecting the grooves into one continuous groove as described above.

[0015] To facilitate shaping of the outer section of the side waterproofing member, a tool can be used to hold the inner section during step C). This can for example help to prevent the flange from being pulled out of the waterproofing member receiving recess during the shaping process and / or to prevent the inner section of the side waterproofing member from deforming.

[0016] If the inner section comprises a groove, the tool can be arranged in the groove during use, and it is presently considered advantageous if the tool has a width corresponding to the width of the groove in a direction perpendicular to the length direction, as this can help to prevent the groove from deforming. However, the tool can also be used to form the groove before, during or after the shaping in step C).

[0017] The length of the tool, measured in the length direction during use, can correspond to the length of the side waterproofing member. It can be advantageous to use a shorter tool for a side waterproofing member extending substantially along the entire length of the side frame member. It can be advantageous to use a longer tool when installing a plurality of shorter side waterproofing members, where mutual adaptation can be required. The tool can comprise a scale or length indication, which can be used to determine whether the intended overlap between adjacent waterproofing members has been achieved.

[0018] In a second aspect of the application, the object is achieved by a kit for installing a roof window using the above described method, the kit comprising: a roof window; a plurality of flashing members and a tool for holding the inner section of the side flashing members during shaping of the outer section of the flashing members.

[0019] In a third aspect of the application, the object is achieved by a roof window installed in a roof structure comprising a roof material, the roof window comprising: a frame, a sash carrying a pane element, and a covering assembly, the frame comprising: a top frame member, two side frame members and a bottom frame member, the frame members together defining a frame opening and a frame plane, and each frame member extending in a length direction and having an outer side facing away from the frame opening, and the covering assembly comprising a plurality of flashing members covering a joint between the frame and the roof structure and a plurality of cladding members covering a part of the sash, wherein a top flashing member extends along the top frame member, a bottom flashing member extends along the bottom frame member, and at least two side flashing members extend along the side frame members, and wherein each flashing member is arranged to have an inner section adjacent to a frame member and an outer section extending away from the inner section and away from the frame, characterized in that each of the side frame members comprises a flashing member receiving recess in the outer side, the flashing member receiving recess extending in the length direction of the side frame member, and at least one side flashing member comprises a flange inserted into the flashing member receiving recess.

[0020] The embodiments and advantages described with reference to one aspect of the application are also applicable to the other aspects of the application, and the embodiments and advantages described with reference to the other aspects of the application are also applicable to one aspect of the application. BRIEF DESCRIPTION OF DRAWINGS

[0021] In the following description, embodiments of the application will be described with reference to the schematic drawings, in which:

[0022] Figure 1 is a perspective view of a roof window with a covering assembly,

[0023] Figure 2 is a perspective view illustrating the installation of a bottom flashing member,

[0024] Figure 3 is a perspective view illustrating a first step of installing the lowermost side flashing member,

[0025] Figure 4 is a perspective view illustrating a second step of installing the lowermost side flashing member,

[0026] Figure 5is a perspective view showing a third step of the installation of the lowermost side water barrier member,

[0027] Figure 6 is a perspective view of the lowermost side water barrier member,

[0028] Figure 7 corresponds to Figure 2 but shows a subsequent installation of the side water barrier member,

[0029] Figure 8 is a perspective view showing a further stage of the installation of the side water barrier member,

[0030] Figure 9 corresponds to Figure 8 but shows the use of another tool,

[0031] Figure 10 is a cross-sectional view showing the right-hand side water barrier member in the installed state,

[0032] Figure 11 is a cross-sectional view along the line IX-IX in Figure 1

[0033] is a perspective view of the side water barrier member, Figure 12

[0034] corresponds to Figure 13 but shows a subsequent installation of the top water barrier member, Figure 7

[0035] is a perspective view of the top water barrier member; and Figure 14

[0036] is a perspective view showing a further stage of the installation of the top water barrier member. Figure 15 DETAILED DESCRIPTION

[0037] Reference is first made to Figure 1 , the roof window 1 is shown with a covering assembly 10 in which the right-hand side of the top water barrier member 1011 is shown in a delivery state before being adapted to the shape of the roof covering used in juxtaposition with the roof window, as will be explained later. The roof window 1 is shown in an inclined position as it is intended for being installed in an inclined roof structure.

[0038] In addition to comprising the top water barrier member 1011, the covering assembly comprises a plurality of side water barrier members 1012, 1013, a bottom water barrier member 1014 and a plurality of cladding members 1021, 1022, 1023, 1024, each of which clads a portion of the sash carrying the covering pair of pane elements 4.

[0039] The roof window 1 comprises a frame (in​Figure 1 The top, side and bottom waterproofing members 1011, 1012, 1013, 1014 extend along the respective lengths L of the top, side and bottom frame members, respectively. These frame members together define a frame opening which is covered by the pane element 4 and the frame plane F.

[0040] In the embodiment in Figure 1 , the top waterproofing member 1011 comprises at each end a corner section 1011a which extends along a side of the roof window and overlaps the waterproofing members 1012, 1013. Thus, when installed in a sloping roof structure, the top waterproofing member can be said to have an inverted U-shape around the upper part of the roof window, i.e. this part is arranged uppermost when seen in the direction of the slope of the roof structure (cf. also Figure 2 , Figure 7 and Figure 13 ).

[0041] The cladding members 1021, 1022 of the cladding assembly 10 can be pre-installed on the roof window 1 or installed after the waterproofing members. This is not essential to the present invention and will therefore not be described in further detail here.

[0042] The installation of the waterproofing members starts with the installation of the bottom waterproofing member 1014, and as shown in Figure 2 , the bottom waterproofing member is displaced in a direction parallel to the frame plane F and perpendicular to the length direction L of the bottom frame member 24.

[0043] In Figure 3 , the lowermost side waterproofing member 1013a is installed at the left-hand side of the roof window by displacing it upwards along the direction of slope I of the roof structure 11, inserting the flange 1017 into a waterproofing member receiving recess in the form of a groove arranged in the engagement unit 8 on the side frame member. In Figure 6 , the lowermost side waterproofing member 1012a for use at the right-hand side of the roof window is shown.

[0044] In Figure 4 , the outer section 1013o, which initially is in an upright state as shown in Figure 3 , is bent down by hand, thereby bringing the outer section 1013o into contact with the roof material 112, here a slate, shaping the lowermost side waterproofing member 1013a to the shape of the roof material.

[0045] In Figure 5In the middle, the closure flap 1013c is bent downwards towards the bottom waterproofing member 1014, thereby facilitating waterproofing of the joint between the waterproofing members and ensuring the position of the side waterproofing member 1013a. The corresponding closure flap 1012c on the side waterproofing member 1012a on the right-hand side is more easily visible.

[0046] As also seen in Figure 6 the lowermost side waterproofing member 1012a comprises a groove 1012g extending in parallel with the flange 1017 and thus in parallel with the side frame member in the mounted state, and a series of perforations 1017i in the flange. Both will be described in further detail below.

[0047] As shown in Figure 7 the remaining side waterproofing members 1012, 1013 are mounted by displacement from the side, i.e. in a direction perpendicular to the side frame member. In the illustrated embodiment, a plurality of side waterproofing members are used at each side of the roof window 1, but it will be understood that the present application is also suitable for a roof window in which the covering assembly comprises only two regular side waterproofing members 1012, 1013, i.e. one at each side of the roof window.

[0048] Figure 7 The side waterproofing members shown in Figure 8 or Figure 9 are initially mounted in a state in which the outer sections 1012o, 1013o are in an upright position, configured for resting on the roof structure 11, and the outer sections are then folded down onto the roof material 112, as shown in Figure 10 , so as to finally have the shape shown in . This embodiment is particularly well suited for use with flat roof material, such as slates, whereas waterproofing members for use with undulating roof material, such as tiles, will typically protrude below the roof material and can thus be mounted without such a folding-down step. However, the folding-down can also be used to adapt the shape of the side waterproofing members to the shape of the roof structure supporting the undulating roof material.

[0049] Figure 4 The folding-down can be performed by hand, as in Figure 8 , by using a rubber hammer, as shown in Figure 9 , or by using a special tool. The special tool is here arranged on the part of the outer section adjoining the groove (not visible in Figure 9 ), thereby preventing deformation of the side of the groove closest to the outer section. However, the tool can also be arranged in the groove, thereby holding the groove in place and possibly preventing deformation of the groove during shaping.

[0050] As Figure 10 And Figure 11 can be seen, the flanges 1017 on the side water barrier member 1012 have been inserted into the water barrier member receiving recesses 85 in the side elements 82 of the junction unit of the frame 2, and it will be appreciated that both the junction unit and the water barrier member receiving recesses 85 in the junction unit extend along the length direction L of the frame side member 22. Inside the water barrier member receiving recess 85, resilient protrusions 85a engage both sides of the flanges 1017, thereby helping to keep the flanges in place in the water barrier member receiving recess. In addition to providing a frictional force against the flanges, the protrusions can also provide a sealing function. If the flanges are inserted into water barrier member receiving recesses in a conventional frame member, a similar protrusion can be provided by inserting a grommet into the water barrier member receiving recess before the flanges are inserted.

[0051] The water barrier member receiving recesses 85 have a height that allows them to accommodate at least two flanges of a side water barrier member, which as illustrated here by the dashed lines overlap each other and overlap the top water barrier member 1011. The side water barrier members can overlap in the same way. In this way, a continuous channel can be formed that extends all the way along the side of the roof window.

[0052] An example of a side water barrier member 1012 is shown in Figure 11 In addition to having an outer section 1012o, a groove 1012g and flanges 1017, the side water barrier member 1012 also has a series of markings 1017i in the flanges, as also referred to in Figure 6 During installation, these markings are used to visually indicate whether the flanges have been inserted far enough into the water barrier member receiving recesses 85 for the side water barrier member to be in the intended position. In the illustrated embodiment, the markings will align with the sides of the junction unit when correctly inserted, but the markings can also be positioned so that they are hidden inside the water barrier member receiving recesses when correctly inserted. It is particularly advantageous if the markings are perforations. Printed lines or dots, depressions, protrusions or other similar markings can also be used.

[0053] Turning now to Figure 13 , the installation of the top water barrier member 1011 is shown. As can be seen, the top water barrier member 1011 is installed in the same way as described for the bottom water barrier member in the description with reference to Figure 2 , only with the top water barrier member 1011 being displaced downwards instead of upwards, as seen in the inclination direction I of the roof structure 11.

[0054] As Figure 14As shown in Fig. 1 1, the corner section 1011a of the top flashing member 1011 can be in the upright initial state as described above, or be folded to this state prior to installation. However, the corner section 1011a can also be in an initial state that requires less deformation, as shown on the right-hand side in Figs. 1 1 and 1 2. Figure 1 and Figure 13 as shown on the right-hand side in Figs. 1 1 and 1 2.

[0055] As shown in Fig. 1 1, the corner section 1011a of the top flashing member 1011 can be in the upright initial state as described above, or be folded to this state prior to installation. However, the corner section 1011a can also be in an initial state that requires less deformation, as shown on the right-hand side in Figs. 1 1 and 1 2. Figure 15 To complete the installation of the flashing members, the corner section 1011a is folded down onto the roof material 1 12 in the same way as described with reference to the outer section of the side flashing member. In Fig. 1 1, the folding is shown as being done by hand, but it can also be done using a tool. Figure 15 To complete the installation of the flashing members, the corner section 1011a is folded down onto the roof material 1 12 in the same way as described with reference to the outer section of the side flashing member. In Fig. 1 1, the folding is shown as being done by hand, but it can also be done using a tool.

[0056] The top flashing member 1014 also comprises grooves 1011g which, in the installed state, are arranged to be continuous with the grooves 1012g, 1013g in the side flashing members 1012, 1013. Thus, in the installed state, these grooves 1011g, 1012g, 1013g form one continuous groove, allowing water to run off along the sides of the roof window 1.

[0057] The grooves 1011g, 1012g, 1013g can facilitate correct alignment of the flashing members relative to each other.

[0058] The top flashing member 1011 and the bottom flashing member 1014 also comprise flanges 1017 which, as described above with reference to the side flashing members, are inserted into the flashing-receiving recesses along the top and bottom frame members, respectively.

[0059] The components of the roof window 1 are easily disassembled, and each component can in principle be reused, recycled by suitable environmentally responsible disposal means, or the material recycled for other uses.

[0060] List of reference signs

[0061] 1 roof window

[0062] 10 covering assembly

[0063] 1011 top flashing member

[0064] 1011a corner section

[0065] 1011g groove

[0066] 1012 side flashing member

[0067] 1012a lowermost side flashing member

[0068] 1012c closure flap

[0069] 1012g trench

[0070] 1012o outer section

[0071] 1013 side flashing

[0072] 1013a lowermost side flashing

[0073] 1013g trench

[0074] 1013o outer section

[0075] 1014 bottom flashing

[0076] 1014a corner section

[0077] 1017 flange

[0078] 1017a corner flange

[0079] 1017i indicia

[0080] 1021 cladding member

[0081] 1022 cladding member

[0082] 1023 cladding member

[0083] 1024 cladding member

[0084] 11 roof structure

[0085] 112 roof material

[0086] 112a slate panel

[0087] 2 frame

[0088] 20o outer side of frame member

[0089] 21 top frame member

[0090] 22, 23 side frame member

[0091] 24 bottom frame member

[0092] 200 frame opening

[0093] 4 sash element

[0094] 8 joining unit

[0095] 81 top element

[0096] 82 side element

[0097] 85 flashing receiving recess

[0098] 85a protrusion

[0099] F frame plane

[0100] I inclination direction

[0101] L length direction

Claims

1. A method for installing a roof window (1) in a roof structure (11) comprising a roof material (112), the roof window comprising: A frame (2), a sash (3) carrying a pane element (4), and the frame comprising a top frame member (21), two side frame members (22, 23) and a bottom frame member (24), all frame members together defining a frame opening (200) and a frame plane (F), and each frame member extending along a length direction (L) and each frame member having an outer side (20o) facing away from the frame opening, wherein the method comprises the steps of: A) arranging the roof window (1) in an opening in the roof structure (11), B) arranging a plurality of waterproofing members such that the plurality of waterproofing members covers a joint between the frame (2) of the roof window (1) and the roof structure (11), wherein a top waterproofing member (1011) extends along the top frame member (21), a bottom waterproofing member (1014) extends along the bottom frame member (24), and at least two side waterproofing members (1012, 1013) extend along the side frame members (22, 23), each waterproofing member being arranged to have an inner section adjacent to a frame member and an outer section extending away from the frame from the inner section, and During step B), a flange (1017) of at least one side waterproofing member (1012, 1013) is inserted into a waterproofing piece receiving groove (85) in the outer side (20o) of at least one side frame member (22, 23), the waterproofing piece receiving groove extending along the length direction (L) of the side frame member, three or more side waterproofing members (1012, 1013) being inserted into the waterproofing piece receiving groove (85) in the outer side (20o) of each side frame member (22, 23), each side waterproofing member being arranged such that it overlaps another side waterproofing member, characterized in that the inner section of each side waterproofing member (1012, 1013) comprises a groove (1012g, 1013g) extending along the length direction (L) and the groove has the same depth over the entire extension of the side waterproofing member and the same depth in all side waterproofing members, such that upon mounting of the side waterproofing members a continuous groove extending along the length of the side frame members is formed.

2. The method according to claim 1, further comprising the step of: C) shaping the outer section of the side waterproofing members (1012, 1013) such that it matches the shape of the roof structure (11) and / or the roof material (112).

3. The method of claim 1 or 2, wherein, the at least one side waterproofing member (1012, 1013) comprises a marking (1017i) on the flange (1017), and wherein the insertion of the flange in step B) is continued until the marking reaches or is hidden by the side frame member (22, 23).

4. The method of claim 1 or 2, wherein, The inner section comprises a groove (1012g, 1013g) extending in the length direction (L), and wherein the insertion of the flange (1017) in step B) is continued until the groove engages the outer side (20o) of the side frame member (22, 23).

5. The method according to claim 2, further comprising the step of: D) if applicable, displacing the side water barrier member in a direction parallel to the length direction of the side frame member after step B) and before step C).

6. The method of claim 2, wherein, The inner section comprises a groove (1012g, 1013g) extending in the length direction (L), and wherein the insertion of the flange (1017) in step B) is continued until the groove engages the outer side (20o) of the side frame member (22, 23).

7. The method of claim 6, wherein, The inner section comprises a groove (1012g, 1013g) extending in the length direction (L), and wherein the insertion of the flange (1017) in step B) is continued until the groove engages the outer side (20o) of the side frame member (22, 23).

8. A kit for installing a roof window using the method of claim 6 or 7, the kit comprising: The frame (2), the sash (3) carrying the pane element (4), and the covering assembly (10), the frame comprising a top frame member (21), two side frame members (22, 23) and a bottom frame member (24), all frame members together defining a frame opening (200) and a frame plane (F), and each frame member extending in a length direction (L) and each frame member having an outer side (20o) facing away from the frame opening, and the covering assembly (10) comprising a plurality of water barrier members covering a joint between the frame and the roof structure and a plurality of cladding members (1021, 1022) covering a part of the sash (3), wherein a top water barrier member (1011) extends along the top frame member (21), a bottom water barrier member (1014) extends along the bottom frame member (24), and at least two side water barrier members (1012, 1013) extend along the side frame members (22, 23), and wherein each water barrier member is arranged to have an inner section adjacent to a frame member and an outer section extending from the inner section away from the frame, and 9. A roof window (1) installed in a roof construction (11) comprising a roof material (112), the roof window comprising: Each of the side frame members comprises a water barrier receiving groove (85) in the outer side (20o) extending in the length direction (L) of the side frame member (22, 23), and at least one side water barrier member (1012, 1013) comprises a flange (1017) inserted into the water barrier receiving groove (85), characterized in that ​ Said inner section of at least two adjacent waterproofing members comprises a groove extending along a side frame member (22, 23) between said frame (2) and said roof material (112), said grooves of these two adjacent waterproofing members overlap and said grooves have the same depth over the entire extension of the side waterproofing members and the same depth in all side waterproofing members.

10. The roof window as claimed in claim 9, wherein, Said flange (1017) extends in a direction parallel to said frame plane (F).

11. The roof window according to claim 9 or 10, wherein, Said waterproofing member receiving groove (85) is provided in an engagement unit (8) extending in said length direction (L) of at least one frame member.

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