Roof window with sealing system

Abstract

The utility model discloses a roof window (1) with a sealing system (5). The sealing system (5) comprises an inner gasket portion (521) and a main gasket (51) comprising a first protruding portion (511) and a second protruding portion (512). The first protruding portion is positioned closer to an inner side portion (211) of a frame of the roof window than the second protruding portion, and the inner gasket portion is positioned closer to the inner side portion of the frame than the first protruding portion. There is a release opening (54) at a free edge (5111) of the first protruding portion located at a distal end of an outer side (214) of the frame. A sealing space (50) is defined between a first sealing plane (523) formed by the inner gasket portion and a second sealing plane (514) formed by the second protruding portion, and a ventilation channel (57) extends through the second sealing plane.

Description

Technical Field

[0001] This utility model relates to roof windows. Background Technology

[0002] Such roof windows are known in the applicant's earlier patent application US2005 / 0126093A1 and are designed for use on roofs with a very low slope, often referred to as flat roofs. The use of a sealing gasket—with two protrusions, each defining a sealing plane between the interior and exterior of the building—means a double barrier against wind and water entering the building from the outside, and against warmer, more humid interior air entering the cooler area between the frame and the sash unit, which consists of sashes and panes. Even with careful installation and maintenance of the sealing gasket, condensation in the space between the frame and the sash unit remains a problem. This is especially true when the roof window is open, where the sash unit is movable relative to the frame, allowing it to disengage from the sealing gasket. Utility Model Content

[0003] Against this backdrop, the purpose of this invention is to provide a roof window that can reduce the risk of water accumulation in the space between the frame and the window panes and / or window sashes.

[0004] This and other objectives of the present invention can be achieved through a roof window as follows. The present invention provides a roof window comprising a frame, a sash, a window pane, and a sealing system; wherein the frame comprises a plurality of frame members defining a frame opening, each frame member being elongated and having a length axis extending along the frame opening, and each frame member having an inner side, an outer side, an inner side, and an outer side, the inner side facing the frame opening, the outer side opposite to the inner side and facing away from the frame opening, the inner side being adapted to face the interior of the building in the installed state of the roof window, and the outer side opposite to the inner side and facing away from the interior of the building in the installed state of the roof window; wherein the window pane is attached to the sash and covers the frame opening, and wherein the sealing system includes a main gasket disposed on the outer side of at least one frame member, extending along a length axis, and the main gasket includes a base portion, a first protrusion, and a second protrusion, the base portion extending from the inner side to the outer side of at least one frame member and covering the outer side. The window has a side portion, and each of the first and second protruding portions protrudes away from at least one frame member, wherein the first protruding portion is positioned closer to the inside than the second protruding portion, and the second protruding portion contacts at least one of the sash and the window pane, and wherein a release opening is present at the free edge of the first protruding portion, the free edge being located at the distal end of the outer side of at least one frame member, and wherein the sealing system further includes an inner gasket portion protruding away from at least one frame member, the inner gasket portion contacting the window pane and positioned closer to the inside of at least one frame member than the first protruding portion, wherein each of the first, second, and inner gasket portions extends along a length axis, wherein the inner gasket portion surrounds the frame opening and forms a first sealing plane, wherein a sealing space is defined between the first sealing plane and a second sealing plane formed by the second protruding portion, and wherein a ventilation channel extends through the second sealing plane.

[0005] The release opening is located either between the first protrusion and the interior side of the window pane facing the building interior when the roof window is installed, or between the first protrusion and a portion of the window sash protruding along the interior side of the window pane.

[0006] Between the interior and exterior of the building, an inner gasket portion forms a first sealing plane, and a second protrusion portion forms a second sealing plane. Therefore, the inner gasket portion and the second protrusion portion create a sealed space between the first and second sealing planes, with the first protrusion portion dividing this sealed space into two chambers. The division into two chambers interconnected via release openings allows each chamber to act as a pressure relief section for the other, thereby reducing the risk of fluid flowing from the interior to the exterior along the width direction or vice versa. This reduces the risk of moisture entering the colder areas of the space between the frame and window sash unit from the building interior, where the coldest areas are typically located furthest from the interior. Furthermore, the sealed space with two chambers can help improve the thermal insulation properties of the roof window, thereby improving its U-value.

[0007] Given that the inner gasket partially surrounds the frame opening, preventing humid, hot air from inside the building from passing through the first sealing plane, and that at least a portion of the main gasket is wholly or partially interrupted, a ventilation channel connecting to the outside is formed. This allows any moisture that has entered the sealed space to escape to the outside, i.e., the surrounding area of ​​the building. Since the amount of moisture entering the sealed space is usually limited, ventilation is generally sufficient to remove the moisture. However, it should be understood that the ventilation channel can also be used to drain liquid water.

[0008] In one embodiment, individual main washers extend along each frame member, extending along the length of the inner portion. The lengths of these main washers along the outer portion of the respective frame member may correspond to the outer portion length, and the ends of each of these main washers extend at a 45-degree angle, such that the main washers are joined in a miter joint manner. In another embodiment, the length of a first set of main washers corresponds to the outer portion length of the respective frame member, and the length of a second set of main washers corresponds to the inner portion length of the respective frame member, such that the first set of main washers covers each corner of the frame. In another embodiment, the length of each main washer is longer than the inner portion length of the respective frame member and shorter than the outer portion length of the respective frame member, such that each main washer covers the length of the respective frame member along the inner portion and covers one corner of the frame. In yet another embodiment, the length of each main washer corresponds to the inner portion length of the respective frame member, and individual corner washers cover each corner of the frame.

[0009] If a single corner washer is used—one that does not have a portion corresponding to the second protrusion of the main washer—the entire corner washer can serve as a ventilation channel. If the length of at least one main washer corresponds to the outer length of the corresponding frame member, and if the main washer has a substantially uniform cross-sectional shape over its entire length, the second protrusion will be interrupted at the end, thus forming a ventilation channel at that end that extends continuously along the length axis. If the main washers are joined at each corner by a miter joint, the second protrusion of at least one of the joined main washers can be interrupted to form a ventilation channel. The ventilation channel does not necessarily have to be located at one or more corners of the roof window. The second protrusion can also be alternatively or additionally interrupted at a distance from the corner to form a vent on one side of the roof window.

[0010] Each of the main washers may extend along at least the entire length of the inner portion of the corresponding frame member, but it is also convenient or necessary to completely interrupt one or more of these main washers, for example, to make room for a hinge or for an actuator for opening and closing a roof window. Partial interruptions may also be used, i.e., interruptions of only a portion of the main washer, such as interrupting only the base portion to allow the actuator to pass through the base portion, or interrupting only the second protrusion to make room for a hinge.

[0011] In embodiments where the main washers are joined together, a ventilation channel can be provided at the joint between the main washers. Similarly, a ventilation channel can be provided at the joint between the main washers and the corner washers. Alternatively or additionally, an opening can be provided in the second protrusion, which is configured to serve as a ventilation channel.

[0012] In embodiments including individual corner washers, each corner washer may be provided with one or more engagement flanges configured to overlap with the main washer of the sealing system. This can help improve watertightness, which is particularly important where ventilation channels are provided at the joint, and / or it can help keep the gaskets of the sealing system in their intended position. Alternatively or alternatively, an adhesive tape or engagement sealing compound may be provided between the corner washer and the main washer. Butyl rubber, for example, can be used for this purpose.

[0013] Corner washers may be provided with deflectors, such as elongated protrusions, configured to redirect water and / or air. For example, a deflector can help direct liquid water toward a ventilation channel. In one embodiment, the deflector extends from the inside of the frame toward the outside of the frame. One or more deflectors may also be provided on the main washer.

[0014] While it is currently considered advantageous to combine multiple main washers with corner washers, it should be understood that a single main washer can extend along all frame members such that it surrounds frame openings. Such a main washer may include corner segments that provide the same function as the described corner washers.

[0015] The inner washer portion can be a third protrusion of the main washer or part of a separate auxiliary washer attached to the frame. Advantages of making the inner washer portion part of the main washer include: the relative positions of the first protrusion, the second protrusion, and the inner washer portion are clearly defined and durable; and there are fewer joints compared to the case of a separate auxiliary washer. Advantages of making the inner washer portion part of a separate auxiliary washer include: increased design freedom; and increased possibility of replacing the inner washer portion without affecting the main washer, and vice versa. A separate auxiliary washer can be a single washer extending along the length of the inner side of all frame members to surround the frame opening.

[0016] In one embodiment, the first protrusion is a lip projecting from the base portion. The lip may project perpendicular to the base portion, but it is currently considered advantageous, at least for use in cold climates, that the lip be resilient and project at an acute angle relative to the base portion, thus projecting toward the inner side of at least one frame member. When roof windows are installed in cold climates, the internal temperature inside the building will typically be higher than the external temperature outside the building. This can cause overpressure on the inner side, which can force hot, humid air into the sealed space. The resilient lip angled toward the inner side of the frame can provide counterpressure and / or deflect air away from the release opening.

[0017] In one embodiment, the second protrusion is hollow, thus including an inner cavity extending along its length axis. This provides good sealing properties by offering a higher degree of compressibility compared to the lip and a relatively large contact area with the window pane and / or sash. A wall or similar element may be provided within the cavity to provide the required compressibility to the second protrusion, and potentially provide higher strength or stiffness to prevent deformation in a particular direction, allowing the second protrusion to deform as desired upon compression.

[0018] In one embodiment, at least one of the main washer, corner washer, and auxiliary washer includes at least one attachment member configured for attachment to the frame. For example, the attachment member may be a resilient protrusion fitted into an opening in the frame member, such as an elongated protrusion fitted into a recess.

[0019] In one embodiment, the frame includes an adapter member attached to the inside of at least one frame member. For example, the adapter may be used for securing a main washer, attaching an auxiliary washer, and / or receiving a liner.

[0020] The frame members may be made of wood or wood-based materials, and / or may include a core made of insulating material. Since the main gasket covers the outer sides, the frame members may be a sandwich structure having layers extending perpendicularly to the plane defined by the frame openings.

[0021] Frame members can have a roughly rectangular cross-sectional shape, while one or more adapter members are used to give the frame a more complex shape.

[0022] An adapter member can be used to secure the main washer, for example, by clamping the main washer between the adapter member and the frame member. In one embodiment, the adapter member includes an outer leg extending on an outer side of the frame member, and the main washer is clamped between the outer leg and the frame member. The outer leg may include an opening that allows fasteners such as screws to pass through the outer leg, through the main washer, and into the frame member. However, the main washer may also be directly attached to the adapter member, for example, by inserting a resilient protrusion on the main washer into an opening on the adapter member, or by inserting a resilient protrusion on the adapter member into an opening on the main washer.

[0023] The adapter member can be used for attaching the auxiliary gasket by attaching it to the adapter member, for example, by extending it into a groove within the adapter member. Positioning the auxiliary gasket on the outer side of the adapter member away from the frame member allows the auxiliary gasket to be raised above the outer side of the frame member. This, in turn, allows the auxiliary gasket to have a smaller cross-sectional dimension, at least along the height axis, compared to the cross-sectional dimension of the sealing space. Generally, the deformation of a gasket with a smaller cross-sectional dimension is easier to control than that of a gasket with a larger cross-sectional dimension. Therefore, a smaller dimension is considered advantageous for inner gasket portions that require a waterproof and vapor-tight seal to the interior of a building.

[0024] By forming a groove between the frame member and the adapter member, the adapter member can be used to receive the liner. For this purpose, the adapter member may include legs that extend parallel to and at a certain distance from the inner side of the frame member.

[0025] The adapter component preferably includes a heat-conducting element made of a material with a high thermal conductivity, for example, exceeding 50 W / (m·K). Such a heat-conducting element will be able to transfer heat from hotter areas to cooler areas. When the external temperature is lower than the internal temperature of the building, the adapter component will allow heat to be distributed from the building interior to the point where the auxiliary gasket meets the window pane, potentially raising the temperature at the window pane by 1°C to 4°C. This temperature increase at the window pane reduces condensation formation in areas along the frame, thereby reducing the risk of frame damage due to moisture.

[0026] In one embodiment, the heat conductor component is made of a material with a thermal conductivity between 30 W / (m·K) and 430 W / (m·K), more preferably between 90 W / (m·K) and 350 W / (m·K), and even more preferably between 150 W / (m·K) and 300 W / (m·K).

[0027] Thermal conductivity is expressed here as the k-value, also known as the λ-value, and is measured in W / (m·K) according to ISO 8302 standard. The U-value, also known as thermal transmittance, is expressed in W / m². 2 • K is a unit of measurement and can also be used to represent the thermal properties of components or structures. However, the U value depends on the dimensions of the building structure and is therefore not an inherent property of the material.

[0028] In one embodiment, the heat conductor component is made of aluminum, copper, other metals, polymers, mixtures of polymers, or composite materials. While aluminum is currently the preferred material, with a k-value of approximately 150 W / (m·K) to 250 W / (m·K), the heat conductor component can also be made of other materials with similar thermal conductivity. Pure aluminum has relatively high thermal conductivity and is therefore preferred for this purpose, but recycled aluminum or aluminum alloys may also be preferred because they can provide other desired properties beyond just thermal conductivity.

[0029] The heat-conducting component may be a smaller portion of the adapter component, preferably located on or within the inner surface of the adapter component, which is exposed to the interior of the building in the installed state of a roof window. However, the entire adapter component or substantially the entire adapter component may also be made of a highly thermally conductive material such as aluminum.

[0030] In one embodiment, the adapter component is made of a polymer composition and has a heat conductor component in the form of an aluminum plate disposed on the inner side of the adapter component and forming the exposed surface of the adapter component.

[0031] In another embodiment, the adapter component is an extruded aluminum profile having an inner cavity filled with another material, such as thermal insulation material.

[0032] The adapter component is made almost entirely of a highly thermally conductive material, such as an extruded aluminum profile with a hollow interior, which means that the entire adapter component is used as a heat conductor.

[0033] The adapter components may have surface treatments, such as paint or varnish. Depending on the material chosen, the surface treatment may improve or reduce thermal conductivity.

[0034] The embodiments and advantages described with reference to the adapter component are also advantageous in other types of roof windows and therefore should not be considered as limited to use with roof windows according to this utility model. The use of the adapter component may be beneficial for any roof window including a frame, sash, pane, and sealing system, wherein the frame includes a plurality of frame members defining a frame opening, each frame member being elongated and having a length axis extending along the frame opening, and each frame member having an inner side, an outer side, an inner side, and an outer side, the inner side facing the frame opening, the outer side opposite to the inner side and facing away from the frame opening, the inner side being adapted to face the interior of the building in the installed state of the roof window, and the outer side opposite to the inner side and facing away from the interior of the building in the installed state of the roof window, and wherein the pane is attached to the sash and covers the frame opening.

[0035] In one embodiment, the roof window includes a set of hinges that connect the window sash to the frame and allow the window sash to move relative to the frame between a closed state and an open state of the roof window, wherein the window pane covers the frame opening when the roof window is closed.

[0036] In some open roof windows, the sash unit remains in contact with the frame even when the window is open. In such roof windows, the frame member extending along the hinge axis, i.e., the frame member containing the hinge, may not have a main washer.

[0037] In one embodiment, the roof window includes an actuator extending between the frame and the window sash, and the main washer is at least partially interrupted at the actuator. The actuator can be motor-driven to allow opening and closing of roof windows that are inaccessible and / or too heavy to be operated manually.

[0038] Although the main gasket can be completely or partially interrupted, it is currently considered advantageous that the outer sides of the frame, formed by the outer sides of the frame members, are substantially completely covered by the main gasket. This protects the frame members and potentially allows for the construction of a wider range of materials with lower moisture resistance. Furthermore, it can facilitate cleaning and maintenance. Attached Figure Description

[0039] In the following description, embodiments of the present invention will be described with reference to schematic diagrams, in which...

[0040] Figure 1 It is a 3D diagram of the roof windows.

[0041] Figure 2 Corresponding to Figure 1 However, only the frame of the roof window is shown.

[0042] Figure 3 Corresponding to along Figure 1 The cross-section of line III-III in the diagram only shows different implementations with a higher frame.

[0043] Figure 4 Corresponding to Figure 3 ,but Figure 4 It is seen from different angles and shown Figure 1 The roof windows in the middle,

[0044] Figure 5a It shows Figure 2 Details marked with V in the middle

[0045] Figure 5b It shows Figure 2 An alternative version of the details marked with V in the middle.

[0046] Figure 6 It is a 3D view of the corner washer attached to the frame.

[0047] Figure 7 This is a perspective view showing the connection between the main washer and the corner washer as seen from two different angles.

[0048] Figure 8 This is a perspective view showing the engagement between the main washer and the corner washer when mounted on the frame.

[0049] Figure 9 Is along Figure 1 The partial cross-sectional cross-sections corresponding to the cross-sections of line IX-IX in the diagram only show different embodiments with a higher frame.

[0050] Figure 10 It shows Figure 2 Details marked with X in the middle

[0051] Figure 11 and Figure 12 Showing views along from two different angles Figure 1 The main washer in the cross-sectional view of line IX-IX in the middle.

[0052] Figure 13 The isotherms in the cross-section of the roof window are shown.

[0053] Figure 14 Corresponding to Figure 13 However, they have different adapter components, and

[0054] Figure 15a , Figure 15b , Figure 15c A cross-sectional schematic diagram of the adapter component is shown. Detailed Implementation

[0055] First refer to Figure 1 The diagram shows a roof window 1 installed on the roof 10 of a building. The roof window 1 includes a frame 2, a sash 3, and a pane 4. A waterproof component (not shown) will be installed to cover the joint 11 between the roof 10 and the frame 2 of the roof window.

[0056] Figure 2 The frame 2 shown separately includes a plurality of frame members 21 defining a frame opening 22, each frame member being elongated and having a length axis L extending along the frame opening. Each frame member 21 has an inner portion 211 facing the frame opening 22 and an outer portion 212 opposite to the inner portion and away from the frame opening. Furthermore, as... Figure 3 As shown, each frame member 21 has an inner side 213 facing the interior 7 of the building, the inner side being... Figure 3 The inner side faces downward; and the outer side 214 is opposite to the inner side and faces away from the interior of the building. A covering profile 23 is provided on the outer side 212 of the frame member 21. The covering profile 23 is configured to overlap with the waterproof member (not shown) to create a waterproof joint between the roof window 1 and the roof 10.

[0057] For example, a roof window with a higher frame 2 is also shown. Figure 3 As seen in the image, the window pane 4 is attached to the window sash 3 and covers the frame opening 22 and the outer side 214 of the frame member 21. Figure 1 and Figure 3 The roof window 1 shown is an openable window, in which a set of hinges connects the window sash 3 to the frame 2. Figure 3 One of the hinges in hinge 6 can be seen in the image. This allows the window sash unit, including sash 3 and pane 4, to move relative to the frame between the closed and open states of the roof window, as shown. Figure 1 As shown in the image.

[0058] The following will only describe Figure 1 and Figure 3 The differences between the roof windows are as follows. All other features should be understood to be the same in both roof windows.

[0059] The sealing system 5 seals the gap between the frame 2 and the window sash unit. In the illustrated embodiment, the sealing system includes a main washer 51 extending on the outer side 214 of each frame member 21 and an auxiliary washer 52 attached to the adapter member 24 at the inner side 211 of the frame member 21. The adapter member is attached to the frame member 21 and forms part of the frame 2. Figure 2 As seen in the diagram, the sealing system 5 here comprises four individual main washers 51 and four corner washers 53, each main washer 51 extending along the length axis L of the corresponding frame member 21. The length of each of the four main washers 51 corresponds to the length of the inner portion 211 of the corresponding frame member 21 and thus corresponds to the size of the frame opening 22. However, it should be understood that one or more corner washers may be replaced by corner segments (not shown) integrally formed with the main washers, or a rectangular main washer (not shown) may surround the frame opening, thereby replacing... Figure 2 All the main washers and corner washers shown.

[0060] Figures 2 to 4 The main gaskets 51 shown each include a base portion 510, a first protrusion 511, and a second protrusion 512, which extend along the length axis L and the height axis H, respectively.

[0061] The base portion 510 extends from the inner portion 211 to the outer portion 212 over and covers the outer portion 214 of the frame member 21, and is held between the adapter member 24 and the outer portion of the frame member at the inner portion. At the outer portion 212, the resilient attachment member 513 on the base portion 510 is inserted into a groove in the frame member 21.

[0062] like Figure 3 As seen in the diagram, the frame member 21 is a sandwich structure, in which two plate members 215 surround the insulation core 216 and rest on the roof 10. The second protrusion 512 and the adapter member 24 are each arranged directly above one of the plate members, so that they both contribute to supporting the weight of the window sash unit consisting of the window sash 3 and the window pane 4, thereby transferring the load to the roof through the plate members. However, it is currently preferred that substantially the entire weight of the window sash unit is supported by the second protrusion 512. In this embodiment, the insulation core does not need to bear any substantial load and, because the insulation core is covered by the main gasket 51, it is not exposed to moisture or sunlight. This allows for the selection of insulation materials based on their insulation properties.

[0063] Both the first protrusion 511 and the second protrusion 512 project from the base portion 510 away from the frame member 21 toward the window pane 4. Viewed along the width axis W, the first protrusion 511 is positioned closer to the inner side 211 than the second protrusion 512, and the second protrusion makes sealing contact with the leg 31 of the window sash projecting below the window pane 4, thereby forming a sealing plane at the outer side 212 of the frame. However, it should be understood that the second protrusion may alternatively contact the inner side 41 of the window pane.

[0064] exist Figure 4 In this design, the first protrusion 511 is a lip, and the second protrusion 512 has a square cross-sectional shape with four cavities extending along the length axis L. The four cavities are separated from each other by X-shaped reinforcements within the second protrusion. The square shape and cavities provide surface area and compressibility, thereby allowing for good sealing contact with the window sash 3. The reinforcements prevent over-compression, thus allowing the second protrusion to maintain a height above the base portion 510, thereby maintaining the desired distance between the inner side 41 of the window pane 4 and the outer side 214 of the frame member 21. The reinforcements and / or external shape of the second protrusion can be implemented differently as long as these functions are maintained, and it should be understood that the reinforcements can potentially be omitted. As an example, Figure 3 The X-shaped reinforcement is omitted in the second protruding part 512, leaving a hollow central part, and the vertical wall is thicker to maintain the load-bearing capacity.

[0065] The auxiliary washer 52 also extends along the length axis L of each frame member 21 and includes an inner washer portion 521 that contacts the inner side 41 of the window pane and a resilient attachment member 522 that inserts into a groove in the adapter member 24. The auxiliary washer 52 completely surrounds the frame opening 22, forming a continuous first sealing plane 523 on the inner side 211 of the frame. Therefore, it prevents humid, hot air from the interior 7 of the building from entering the sealing space 50 defined between the first sealing plane formed by the inner washer portion 521 and the second sealing plane 514 formed by the second protrusion 512. The first protrusion 511 separates the sealing space 50, but it does not form a third sealing plane because a release opening 54 exists between the inner side 41 of the window pane and the free edge 5111 of the lip located at the distal end of the frame member. Figure 4The release opening 54 is best seen in the middle, and the release opening 54 allows air to move from a portion 501 of the sealed space 50 located between the first protrusion 511 and the second protrusion 512, and from a portion 502 of the sealed space located between the first protrusion 511 and the auxiliary washer 52. In the illustrated embodiment, the first protrusion 511 is an elastic lip that protrudes at an acute angle toward the inner side 211 of the frame relative to the base portion 510. This angle can counteract overpressure in the portion 502 of the sealed space located between the first protrusion 511 and the auxiliary washer 52. However, the primary function of the first protrusion 511 is to separate the sealed space 50 to increase the U-value of the roof window.

[0066] Now go to Figure 5a Detailed Figure 2 The corner is marked with a "V". As can be seen, the two adapter components 24 are slightly shorter than the main washer 51 and are connected to each other via adapter component connector 25. The auxiliary washer 52 can be a continuous washer passing through the adapter component connector 25, or the adapter component connector can be provided with a washer portion extending continuously from the individual auxiliary washer on either side. The former is currently preferred because it eliminates the risk of moisture leakage at the connection between the washer portion on the adapter component connector and the individual auxiliary washer.

[0067] As in Figure 2 and Figure 5a As seen in the figures, the main washer 51 is interrupted at its junction with the corner washer 53. In embodiments where the corner washer and the main washer are integrally formed, only the first protrusion 511 and the second protrusion 512 may be interrupted, or only the second protrusion may be interrupted. It should be understood that the first and second protrusions may extend further than shown in the figures, and they may have different lengths. The interruption of at least the second protrusion 512 results in the interruption of the sealing space 50, which in turn allows any water that has reached the sealing space or condensed in the sealing space to be drained.

[0068] like Figure 6 and Figure 7 As seen in the image, the corner washer 53 is provided with a flange 531, which is configured to extend below the main washer 51 to establish a waterproof joint.

[0069] exist Figure 5a and Figure 7 In this configuration, flange 531 is located slightly below the outer surface of the body 530 of corner washer 53, and there is a small distance between the main washer and the body of corner washer. This forms a drainage gap 56 between the main washer 51 and the body 530 of corner washer 53. Figure 8Such a gap is shown in more detail. This drainage gap allows water to drain from the sealing system 5 onto the outer side 212 of the frame member 21.

[0070] In the illustrated embodiment, a ridge-shaped deflector extends diagonally on the corner washer 53. This deflector impedes the movement of water on the surface of the corner washer. The corner washer is also provided with a resilient attachment member 533, which is configured, like the attachment member 513 of the main washer 51, to be inserted into the same groove in the frame 2.

[0071] The open end of the sealed space 50, created by the interruption of the main washer 51, combines with the open space above the corner washer 53 to form a ventilation channel 57, which allows air exchange between the sealed space and the outside. The deflector 532 can help guide the air above the corner washer 53, and in the illustrated embodiment, the air will follow... Figure 5a The general path is indicated by the dashed arrow in the diagram. Ventilation of the sealed space 50 can dry any water that enters or condenses within the sealed space and can further remove moisture, thus reducing the risk of condensation. This ventilation will be primarily driven by the thermal gradient over the roof windows, and therefore the ventilation will reach its maximum when the temperature inside the building 7 is significantly higher or lower than the outside temperature. This is advantageous because these are also the situations with the highest risk of condensation.

[0072] Figure 5b An alternative embodiment without individual corner washers is shown. Here, individual main washers 51 also extend along each frame member 21, but the length of each of these main washers corresponds to the length of the outer side of the respective frame member, and the ends of each of these main washers extend at a 45-degree angle, such that they meet in a miter joint manner. Only the base portion 510 extends to these ends, while the first protrusion 511 and the second protrusion 512 are interrupted, thus forming a connection with… Figure 5a The ventilation channels 57 are of the same size. It should be understood that the first protrusion and the second protrusion may extend further to form a smaller ventilation channel, or extend shorter to form a larger ventilation channel; and / or the first protrusion and the second protrusion may be interrupted at different locations. It would also be possible to interrupt only the second protrusion 512. Furthermore, only a portion of the first protrusion 511 and / or the second protrusion 512 may be removed along the height axis, for example, by reducing the height of the first protrusion by 50% and completely removing the second protrusion.

[0073] Figure 1The type of roof window shown is typically very large, with heavy sash units, and is usually installed in a location inaccessible to building occupants. Therefore, as... Figure 9 As shown, the roof window 1 is equipped with a motor-driven actuator 8, which is housed in an upwardly opening cavity 26 within the frame 2. To open the roof window, the actuator 8 includes a chain 81 that pushes a bracket 82 connected to a leg 31 protruding along the inner side 41 of the window sash 3. A pressure pad 83 is arranged between the bracket 82 and the inner side of the window sash to distribute the load. It should be understood that the chain actuator is only one example of an actuator, and other actuators may be used. Many suitable actuators are known to those skilled in the art and will therefore not be described in detail here.

[0074] To make room for the actuator 8 and the bracket 82, the main washer 51 is partially interrupted, such as... Figures 10 to 12 As shown in the illustration. In the illustrated embodiment, the hole in the base portion 510 allows the operator's chain 81 to pass through the main washer, and a section of the second protrusion 512 has been removed to make room for the bracket 82. The first protrusion 511 is intact here and is compressed only below the bracket 82 when the roof window is closed. This provides structural stability to the main washer 51, helping to hold the main washer 51 in its intended position on the frame 2, and when the roof window is open, the first protrusion will deflect dirt and wind from the outside, thus protecting the operator. However, the main washer could also be completely interrupted at the operator.

[0075] The interruption at the operator 8 in the second protrusion 512 provides a ventilation channel that has essentially the same function as described with reference to the aforementioned corner. This is advantageous because the operator will typically be made of metal and other materials with high thermal conductivity, resulting in a relatively high risk of condensation in this area of ​​the roof window.

[0076] Details of main washer 51 Figure 11 and Figure 12 As shown in the image.

[0077] Figure 13 Showing the roof window with Figure 3 The isotherms in the cross-section shown correspond to the cross-section in which the adapter member 24 is made of extruded aluminum profile.

[0078] The aluminum alloy used for the adapter component 24 has a thermal conductivity of 160 W / (m·K). The window pane 4 has a thermal conductivity of 1.1 W / (m·K). 2The double-glazed insulated glass unit has a U-value of ·K. Frame 2 is made of a C60 type expanded polystyrene (EPS) core with a thermal conductivity of 0.033W / (m·K), which is sandwiched in a 500 kg / m³ density glass unit. 3 Between the inner and outer layers of cork.

[0079] The building's interior temperature is 20°C, and the exterior temperature is -5°C.

[0080] The temperature at the contact point where the auxiliary washer 52 contacts the window pane 4 is 12.06°C, and is marked as θmin AB in the diagram. The temperature level of each isotherm is represented by a small number along the edge of the roof window.

[0081] Figure 14 It shows the relationship with Figure 13 The isotherms in the cross-section of the roof window are identical to those in the building, and the interior and exterior temperatures, the placement of window 4, and the type of window 4 are all exactly the same. Frame 2 is also identical to... Figure 13 The same as in. With Figure 13 The difference is that, in Figure 14 In this context, the adapter component 24 is made of EPS with a thermal conductivity of 0.033 W / (m·K). This difference results in a minimum temperature θAB at the contact point where the window pane 4 contacts the auxiliary gasket 52, which is only 9.40°C, compared to... Figure 13 The aluminum adapter components were 2.66°C cooler. This means that, compared to... Figure 13 The implementation method, in Figure 14 In this implementation method, the risk of condensation forming at the contact point is significantly higher.

[0082] Figure 15a , Figure 15b , Figure 15c Three different embodiments of the adapter component are shown, all of which are shown in cross-section.

[0083] Figure 15a Showing more details Figure 3 The adapter component used herein is constructed from an extruded aluminum profile having a cavity 241 at its center. The cavity shown here is empty, but can be filled with another material, such as thermal insulation. The adapter component also includes a recess 242 configured to receive an auxiliary washer as shown in the reference. Figures 2 to 4 The attachment member shown and described. Furthermore, the adapter member includes three flanges 243, 244, and 245.

[0084] The first flange 243 is used as... Figures 2 to 4 The support member of the auxiliary washer 52 shown allows the washer to protrude into the sealing space 50 between the frame 2 and the window pane 4.

[0085] The second flange 244 is configured to extend on and rest on the outer side 214 of the frame 2, and to clamp the base portion 510 of the main washer 51 between the second flange and the frame, as also referred to Figures 2 to 4 As described. This section can also conduct heat to the sealed space 50 between frame 2 and window pane 4, thereby reducing the risk of condensation forming in the space.

[0086] The third flange 245 is, for example, Figure 3 In the installed state shown, it extends inward, thus forming a groove for receiving the liner between the frame 2 member and the adapter member 24. In this embodiment, a small protrusion 2451 is provided for retaining the liner. When the external temperature is lower than the internal temperature inside the building and the window 4 becomes cold, the third flange 245 conducts heat from inside the building toward the window 4.

[0087] Figure 15b An adapter component 24 is shown, comprising an insulation block 246 having a plate composed of heat-conducting components 247 attached, in the installed state, to the inner side facing away from the frame 2 and towards the building interior. For example, the heat-conducting components may be made of aluminum, and the block may be made of expanded polypropylene (EPP), expanded polyethylene (EPE), expanded polystyrene (EPS), mineral wool, or wood. The block may be configured with... Figure 15a The recess corresponding to the recess 242 in .

[0088] Figure 15c A third adapter member 24, made of extruded polymer profile, is shown. The third adapter member 24 has an inner cavity 241 filled with an insulating material such as polyurethane foam or one of the aforementioned materials. The profile is covered on its inner, inner, and outer sides by C-shaped heat-conducting components 247. Figure 15a The heat-conducting component in the middle only covers the inner part and transfers heat in a direction perpendicular to window 4. Figure 15c The heat conductor component 247 is also configured to transfer heat in a direction parallel to the window pane. This allows the heat conductor component 247 to conduct heat to the sealed space 50 between the frame 2 and the window pane 4 in the installed state and towards the inner side 211 of the frame. However, the inner leg portion 2471 of the heat conductor component is primarily used to conceal and protect the inner side of the polymer profile.

[0089] It should be understood that Figure 15c The heat conductor component shown can also be used Figure 15b The adapter component in, and Figure 15b The heat conductor component shown can also be used Figure 15c The adapter components in the three embodiments may use materials that can be combined in different ways.

[0090] Aluminum has been described as a preferred material for providing high thermal conductivity and is currently the preferred material. However, it should be understood that this invention is not limited to the use of aluminum.

[0091] List of reference numerals in the attached figures

[0092] 1. Roof window

[0093] 10 rooftops

[0094] 11 Joints

[0095] 2-framework

[0096] 21 Frame Components

[0097] 211 Inner side

[0098] 212 outer side

[0099] 213 Internal side

[0100] 214 External side

[0101] 215 slab components

[0102] 216 heat insulation core

[0103] 22 frame openings

[0104] 23 Covering Profiles

[0105] 24 adapter components

[0106] 25 adapter component connector

[0107] 3 window sashes

[0108] 31 Legs

[0109] 4 panes

[0110] 41. Inner side of the window

[0111] 5. Sealing System

[0112] 50 sealed space

[0113] Part of the 501 sealed space

[0114] Part of the 502 sealed space

[0115] 51 main washer

[0116] 510 base section

[0117] 511 First Protruding Part

[0118] 5111 Free Edge

[0119] 512 Second Prominent Part

[0120] 513 Attachment Members

[0121] 514 Second sealing plane

[0122] 52 auxiliary washer

[0123] 521 Inner Washer Part

[0124] 522 Attachment Components

[0125] 523 First sealing plane

[0126] 53 Corner Washer

[0127] 530 main body

[0128] 531 flange

[0129] 532 steering gear

[0130] 533 Attachment Members

[0131] 54 Release Opening

[0132] 56 Drainage gap

[0133] 57 ventilation ducts

[0134] 6 hinges

[0135] 7. The interior of the building

[0136] 8 operators

[0137] 81 chain

[0138] 82 stents

[0139] 83 pressure pad

[0140] H-height axis

[0141] L-length axis

[0142] W width axis.

Claims

1. A roof window (1) comprising a frame (2), a sash (3), a pane (4) and a sealing system (5), wherein the frame (2) comprising a plurality of frame members (21) delimiting a frame opening (22), each frame member being elongated and having a length axis (L) extending along the frame opening, and each frame member having an inner side (211) facing the frame opening, an outer side (212) opposite the inner side and facing away from the frame opening, an inner side portion (213) adapted to face an interior (7) of a building in an installed state of the roof window, and an outer side portion (214) opposite the inner side portion and facing away from the interior of the building in the installed state of the roof window, wherein the pane (4) is attached to the sash (3) and covers the frame opening (22), wherein the sealing system (5) comprises a main gasket (51) arranged on the outer side portion (214) of at least one frame member (21) extending along the length axis (L), and the main gasket (51) comprises a base portion (510) extending on the outer side portion (214) of at least one frame member (21) from the inner side (211) to the outer side (212) and covering the outer side portion (214), and a first (511) and a second (512) protruding portion, each protruding away from at least one of the frame members (21), wherein the first protruding portion (511) is positioned closer to the inner side (211) than the second protruding portion (512), and the second protruding portion (512) is in contact with at least one of the sash and the pane, and wherein a release opening (54) is present at a free edge (5111) of the first protruding portion (511) located distal to the outer side portion (214) of at least one of the frame members (21), and wherein the sealing system (5) further comprises an inner gasket portion (521) protruding away from at least one of the frame members (21), the inner gasket portion (521) being in contact with the pane (4) and positioned closer to the inner side (211) of at least one of the frame members (21) than the first protruding portion (511), characterized in that each of the first protruding portion (511), the second protruding portion (512) and the inner gasket portion (521) extends along the length axis (L), the inner gasket portion (521) surrounds the frame opening and forms a first sealing plane (523) between which and a second sealing plane (514) formed by the second protruding portion (512) a sealing space (50) is defined, and a ventilation channel (57) extends through the second sealing plane.

2. A roof window (1) according to claim 1, characterized in that The ventilation channel is formed by the second protruding portion of the main gasket being wholly or partially interrupted.

3. A roof window (1) according to claim 1 or 2, characterized in that A separate main gasket extends along each frame member.

4. A roof window (1) according to claim 3, characterized in that The sealing system (5) further comprises a corner gasket (53).

5. A roof window (1) according to claim 1 or 2, characterized in that The sealing system (5) further comprises an auxiliary gasket (52), and wherein the inner gasket portion (521) forms a part of the auxiliary gasket.

6. A roof window (1) according to claim 1 or 2, characterized in that The first protruding portion (511) is a lip protruding from the base portion (510).

7. A roof window (1) according to claim 1 or 2, characterized in that The second protruding portion (512) is hollow, thereby comprising an inner cavity extending along the length axis (L).

8. A roof window (1) according to claim 1 or 2, characterized in that At least one of the main gasket, the corner gasket and the auxiliary gasket comprises at least one attachment member configured for attachment to the frame (2).

9. A roof window (1) as claimed in claim 5, characterised in that The frame (2) comprises an adapter member (24) attached at the inner side (211) of at least one of the frame members.

10. A roof window (1) according to claim 9, characterized in that The main gasket is clamped between the adapter member and a frame member.

11. A roof window (1) according to claim 9, characterized in that The auxiliary gasket is attached to the adapter member.

12. A roof window (1) according to claim 9, characterized in that The adapter member (24) comprises a heat conductor part made of a material having a thermal conductivity between 30 W / (m K) and 430 W / (m K).

13. A roof window (1) according to claim 9, characterized in that The adapter member (24) is made of aluminum, copper or a polymer combined with a high thermally conductive material.

14. A roof window (1) according to claim 1 or 2, characterized in that Further comprising a set of hinges (6) connecting the sash (3) to the frame (2) and allowing the sash (3) to move relative to the frame (2) between a closed state of the roof window and an open state of the roof window, wherein the pane (4) covers the frame opening (22) in the closed state of the roof window.

15. A roof window (1) according to claim 1 or 2, characterized in that Further comprising an operator (8) extending between the frame (2) and the sash (3), and wherein the main gasket is at least partially interrupted at the operator.

16. A roof window (1) according to claim 12, characterized in that The heat conductor part is made of a material having a thermal conductivity between 90 W / (m K) and 350 W / (m K).

17. A roof window (1) according to claim 12, characterized in that The heat conductor part is made of a material having a thermal conductivity between 150 W / (m K) and 300 W / (m K).

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