Waterproof assembly for roofing element and roofing element system

Abstract

The utility model relates to a waterproof assembly for a roof element and a roof element system. In the waterproof assembly (11), the top waterproof device comprises at least one pair of inner top waterproof elements (111) and outer top waterproof elements (112), and each inner top waterproof element (111) and the associated outer top waterproof element (112) are configured to be interconnected in a telescopic connection (115).

Description

Technical Field

[0001] The present utility model relates to a waterproof assembly for roof elements, such as roof windows, which is configured to be installed in an inclined roof structure that defines an inclined direction and includes a frame having a top frame member and a bottom frame member that both extend horizontally in the width direction in the installed state of the roof element, and two side frame members that extend in the inclined direction in the installed state of the roof element. The waterproof assembly includes a top waterproof device that is configured to extend along the top frame member in the installed state of the waterproof assembly. In addition, the present utility model relates to a roof element system and a method for manufacturing a waterproof assembly. Background Art

[0002] When a roof element, such as a roof window, is installed in an inclined roof, an opening is cut in the roof structure, and the roof made of tiles or similar roofing materials is interrupted. After the roof element is installed in the opening, a waterproof assembly is used to seal the connection between the roof window and the roof, and thus ensure a waterproof transition between the roof element and the surrounding roof. Each waterproof element typically includes an inner portion that is arranged to extend upward along the frame of the roof window; and an outer portion that is arranged to extend away from the frame.

[0003] When roof elements are to be installed in a larger or more complex group, such as in a matrix layout where roof elements are installed side by side and also one above the other in the inclined direction, the waterproof assembly can be manufactured according to a special order. In turn, the number of different components that need to be manufactured, stored, and delivered is relatively high.

[0004] The applicant's earlier EP 3 480 388A1 and WO 95 / 28535A1 are examples of well-performing waterproof assemblies that to some extent alleviate the challenges of different installation configurations of such roof elements. However, there is still room for improvement. Summary of the Utility Model

[0005] Therefore, in this context, the object of the present utility model is to provide a waterproof assembly that can adapt to a larger number of different configurations in the installation of roof elements.

[0006] In a first aspect, this object and other objects are met by a waterproof assembly of the type mentioned in the introduction. In addition, the waterproof assembly is characterized in that the top waterproof device includes at least a pair of inner top waterproof elements and outer top waterproof elements, and each inner top waterproof element and the associated outer top waterproof element are interconnected in a nested connection portion.

[0007] With this design, when two roof elements are installed side by side, one and the same top waterproofing device can be used, where the top frame members are at different heights in the slope direction of the roof. Any connection that allows adjustment of the relative positions of two components with respect to each other between the two components is understood by means of a telescopic connection. This is particularly advantageous in view of the increasing concern for sustainability, partly because the number of different components that need to be manufactured and kept in stock is reduced, and partly because the present utility model enables the installation of not only conventional roof windows adjacent to, for example, solar panels and / or solar collectors, but also roof windows with a smaller or larger height in the inclination direction. Although hitherto, providing suitable waterproofing for roof elements with different positions in the inclination direction has been a considerable challenge, the present utility model provides a well-functioning, adaptable and reliable adjustment.

[0008] In one embodiment, each inner top waterproof element includes: a first leg configured to extend upward along the outer side portion of the top frame member; and a second leg configured to extend substantially in a plane with the roof structure, and the second leg includes a joining device configured to form part of a telescopic connection. In this way, the outer top waterproof element can be placed on top of the second leg of the inner top waterproof element so as to cover these joining devices. In this way, the best flexibility of the adaptability of the top waterproofing device is achieved.

[0009] In another embodiment, each outer top waterproof element includes a substantially planar base provided with a top joining device at an inner edge portion configured to form part of a telescopic connection. In particular in combination with the configuration of the inner top waterproof element including a substantially planar second leg, the telescopic connection achieved is particularly easy to establish during the installation of the waterproofing assembly on the roof element.

[0010] In a further refinement of these embodiments, the outer edge portion of the second leg is bent to form a joining device of the inner top waterproof element to engage with the joining device formed by the bent inner edge portion of the outer top waterproof element. This provides a mechanically simple and reliable connection.

[0011] In another embodiment, each inner top waterproof element includes a corner section at each side portion, which is separated from the second leg by a ridge portion. Incorporating such a corner section into the top waterproofing device provides sufficient weather resistance at the corners of the frame element and also provides the opportunity to connect to the waterproofing at the sides of the frame.

[0012] To ensure an easy and reliable connection between the outer top waterproof element and the corner section, each outer top waterproof element may include a first side joint device and a second side joint device, which are located at opposite side edge portions of the base to engage with a third side joint device of the corner section of the inner top waterproof element. The said third side joint device of the corner section is preferably formed by an edge portion of the corner section.

[0013] In a preferred further improvement of the latter embodiment, the outer top waterproof element may be provided with a cutout, the extension of which in the width direction substantially corresponds to or exceeds the width of the corner section.

[0014] Alternatively or additionally, the width of the cutout may substantially correspond to the spacing between the end of the top joint device and the first side joint device. In this way, optimal joint conditions and adaptation conditions are achieved.

[0015] In the currently preferred embodiment, the inner top waterproof element is configured to cooperate with the side waterproof element, optionally at the corner section.

[0016] In a particularly advantageous further improvement of this preferred embodiment, the inner top waterproof element, the outer top waterproof element and the side waterproof element are configured to cooperate with an extension waterproof element, preferably by the engagement of the side edge of the extension waterproof element with a slit-shaped recess formed between the lower outer edge and the edge portion of the corner section. The extension waterproof element may constitute a groove element positioned between adjacent roof elements, or a transition element with the surrounding roof. In addition, the extension waterproof element can be used as a locking element for fixing the outer top waterproof element and the inner top waterproof element in their selected relative positions.

[0017] The degree of adaptation of the top waterproof device can be selected according to specific requirements. Preferably, the inner top waterproof element and the outer waterproof element define a maximum measured value (Dmax) in the inclined direction, which corresponds to the position where the outer waterproof element and the inner waterproof element overlap to a lesser extent and a nested connection portion is fully established.

[0018] Although the sizes of the inner top waterproof element and the outer top waterproof element can in principle be selected independently of each other, preferably, the inner top waterproof element and the outer waterproof element define a minimum measured value in the inclined direction, which corresponds to the position where the outer waterproof element and the inner waterproof element overlap to a greater extent and the nested connection portion does not function. In particular, preferably, the sizes in the inclined direction are within the same size range.

[0019] Examples of suitable values are given in embodiments where the maximum measurement is in the range of 200 mm to 250 mm, and where the minimum measurement is preferably in the range of 100 mm to 125 mm, and / or the measurement of the connecting part is in the range of 20 mm to 80 mm.

[0020] In a second aspect, a roof element system is designed.

[0021] In a third aspect, a manufacturing method is designed.

[0022] Other currently preferred embodiments and further advantages will become apparent from the following detailed description and the drawings.

[0023] Features described with respect to one aspect among the aspects may also be included in another aspect, and the advantages of the feature apply to all aspects in which it is included. Description of the Drawings

[0024] In the following description, embodiments of the present invention will be described with reference to schematic diagrams, in which:

[0025] Figure 1 is a schematic plan view of a roof element system for use with a waterproof component according to the present invention;

[0026] Figure 2 is an exploded perspective view of a waterproof component in an embodiment of the present invention;

[0027] Figure 3 is of the Figure 2 waterproof component in a first engagement position;

[0028] Figure 4 is of the Figure 2 waterproof component in a second engagement position;

[0029] Figure 5 is a view corresponding to Figure 2 from another angle;

[0030] Figure 6 is a partial perspective view of an embodiment of a waterproof component according to the present invention;

[0031] Figure 7 is a partial perspective view of an embodiment of a waterproof component according to the present invention;

[0032] Figure 8 is a perspective view of another embodiment of a waterproof component according to the present invention;

[0033] Figure 9 and Figure 10is a perspective view of yet another embodiment of the waterproof component according to the present utility model;

[0034] Figure 11 is a cross-sectional perspective view of the waterproof component in an embodiment of the present utility model; and

[0035] Figure 12 is an overview of the waterproof component in three different engagement positions in the embodiment. Detailed Embodiment

[0036] In the following detailed description, preferred embodiments of the present utility model will be described. However, it should be understood that, unless otherwise specifically indicated, the features of different embodiments are interchangeable between the embodiments and can be combined in different ways. It should also be noted that, for clarity, the dimensions of some components illustrated in the drawings may be different from the corresponding dimensions in actual implementations.

[0037] It should be noted that terms such as "upper", "lower", "left side", "right side", "outer", "inner", "outside", "inside" are relative and refer to the perspective being discussed.

[0038] In Figure 1 a roof element system including two roof elements of an embodiment of the present utility model is shown. Hereinafter, the roof elements will be referred to as two roof windows 1.1, 1.2, but the roof elements can also be solar panels in the form of photovoltaic panels, or solar collectors. There can be more than two roof elements in the roof element system. The roof windows 1.1, 1.2 are shown in an installed state in the roof structure 3, adjacent to each other in the width direction W. Each of the roof windows 1.1 and 1.2 is represented by a frame 2.1, 2.2, and the frames 2.1, 2.2 have top frame members 2.11, 2.21, and the top frame members 2.11, 2.21 extend horizontally in the width direction in the installed state of the roof windows 1.1, 1.2. The frame also includes bottom frame members (not shown) extending parallel to the top frame members 2.11, 2.21, and two side frame members 2.12, 2.13, 2.22, 2.23 extending in the inclined direction D defined by the inclination of the roof structure 3.

[0039] The roof structure 3 is only represented by several rafters 31, battens 32 and a roof covering 33. The roof structure 3 can be constructed differently and / or include other components, such as boards, etc.

[0040] As Figure 1As shown in [the figure], in the illustrated embodiment, the top frame member 2.11 of a roof window 1.1 is located at a different position in the inclined direction D from the top frame member 2.21 of an adjacent roof window 1.2.

[0041] As will be described in further detail below, a waterproof assembly for use in a roof element system as shown in [the figure] is provided. The waterproof assembly of the present utility model is configured such that one and the same waterproof assembly can be used for two roof windows 1.1, 1.2. However, the waterproof assembly is also applicable to a single roof element. Figure 1 As shown in [the figure], in the illustrated embodiment, the top frame member 2.11 of a roof window 1.1 is located at a different position in the inclined direction D from the top frame member 2.21 of an adjacent roof window 1.2.

[0042] Now referring to Figures 2 to 7 , an embodiment of the waterproof assembly 11 including a top waterproof device will be described in detail.

[0043] Depending on the number of roof elements in the system, the top waterproof device includes an appropriate number of pairs of inner top waterproof elements 111 and outer top waterproof elements 112. Hereinafter, one top waterproof device will be referred to. It should be noted that the top waterproof device adapted to be associated with adjacent roof elements may include fewer or more components.

[0044] The inner top waterproof element 111 and the associated outer top waterproof element 112 are configured to be interconnected in a nested connection portion 115.

[0045] In the illustrated embodiment, each inner top waterproof element 111 includes: a first leg 1111 configured to extend upward along the outer side of the top frame member 2.11 or the outer side of the top frame member 2.21; and a second leg 1112 configured to extend substantially in a plane with the roof structure 3, and the second leg 1112 includes an engaging device 1112a configured to form a part of the nested connection portion 115. The first leg 1111 and the second leg 1112 extend substantially perpendicular to each other and are connected in a slightly curved transition portion such that an outward-facing concave side is formed.

[0046] The outer top waterproof element 112 includes a substantially planar base 1120 provided with a top engaging device 1120a at an inner edge portion configured to form a part of the nested connection portion 115.

[0047] The outer edge portion of the second leg 1112 bends upwardly and inwardly towards the recess to form a engaging device 1112a of the inner top waterproof element 111. The engaging device 1112a is adapted to engage with an engaging device 1120a formed by the bent inner edge portion of the outer top waterproof element 112. The inner edge portion bends downwardly and upwardly as indicated in the drawing position. The length of the bent portion and thus the length of the corresponding engaging device may vary according to the specific application field and will be described in further detail below. By the term "bending" is understood any manufacturing process suitable for forming a portion having a direction different from the main portion of the component. The bending process may result in a relatively sharp structure or a curved structure.

[0048] In the embodiment shown in the drawings, the inner top waterproof element 111 further includes corner sections 1113 located at each side portion. The corner sections 1113 are separated from the second leg 1112 by a ridge portion 1114, as Figure 7 indicated. The corner section 1113 abuts an upright portion 1113a connected to the first leg 1111 of the inner top waterproof element 111. The corner section 1113 is substantially positioned in the same plane as the second leg 1112 of the inner top waterproof element 111 and is configured to be located outside the end of the top frame member 2.11 or the end of the top frame member 2.21 in the installed state of the waterproof assembly.

[0049] Specifically referring to Figure 5 , Figure 5 showing the top waterproof device from below, it can be seen how the outer top waterproof element 112 in the shown embodiment includes a first side engaging device 1120b and a second side engaging device 1120c at opposite side edge portions of the base 1120. As Figure 7 best shown, the shown first side engaging device 1120b is adapted to engage with a third side engaging device of the corner section 1113 of the inner top waterproof element 111. The third side engaging device of the corner section 1113 is here formed by an edge portion 1113b of the corner section 1113. The first side engaging device 1120b and the second side engaging device 1120c are formed by a suitable process such that the position of the outer top waterproof element 112 can be adjusted by sliding the first side engaging device 1120b and the second side engaging device 1120c along the edge portion 1113b and a mating edge portion at the other side, but it is preferably still maintained that the outer top waterproof element 112 is engaged with the inner top waterproof element 111.

[0050] To accommodate the corner section 1113 in a sliding joint, especially when there is a ridge portion 1114 as described above and the edge portion 1113b protrudes above the plane of the corner section 1114, the outer top waterproof element 112 is provided with a cutout 1120e, the extension of which in the width direction W substantially corresponds to or exceeds the width of the corner section 1113. This is shown in Figure 7 in particular detail.

[0051] The extension of the top engaging device 1120a of the outer top waterproof element 112 can be selected such that the engaging device extends over a length corresponding to the main part of the second leg 1112 of the inner top waterproof element 111. In this case, the width of the cutout 1120e substantially corresponds to the spacing between the end of the top engaging device 1120a and the first side engaging device 1120b.

[0052] Now turning to Figure 8 shows how, in another embodiment, the waterproof assembly also includes waterproof elements at the sides.

[0053] The inner top waterproof element 111 is configured to cooperate with the side waterproof element 113. In a manner known per se, the side waterproof element is provided with an upright portion and a protruding leg portion. Here, the side waterproof element 113 is configured to partially overlap at the corner section 1113 of the inner top waterproof element 111.

[0054] In Figure 9 and Figure 10 shown in yet another embodiment, the inner top waterproof element 111, the outer top waterproof element 112 and the side waterproof element 113 are configured to cooperate with an extension waterproof element 114. The extension waterproof element 114 can constitute a groove element to be positioned between adjacent roof elements, or a transition element to the surrounding roof. In addition, the extension waterproof element 114 can be used as a locking element for fixing the outer top waterproof element and the inner top waterproof element in their selected relative positions. The connection between the inner top waterproof element 111, the outer top waterproof element 112 and the side waterproof element 113 and the extension waterproof element 114 is provided in the shown embodiment by the engagement of the side edge 1114e of the extension waterproof element 114 with a slit-shaped recess 1113e formed between the lower outer edge 1113d and the edge portion 1113b of the corner section 1113.

[0055] The waterproof assembly can also include a bottom waterproof means (not shown) that is connected to the side waterproof element and any extension waterproof elements.

[0056] Now turning to Figure 11 and Figure 12, the dimensional adaptability of the top waterproof device in the inclined direction D will be described in detail. The inner top waterproof element 111 and the outer waterproof element 112 define a maximum measured value Dmax in the inclined direction D, which corresponds to the position where the outer waterproof element 112 overlaps with the inner waterproof element 111 to a lesser extent and the nested connecting portion 115 is fully established.

[0057] The inner top waterproof element 111 and the outer top waterproof element 112 define a minimum measured value Dmin in the inclined direction D, which corresponds to the position where the outer waterproof element 112 overlaps with the inner waterproof element 111 to a greater extent and the nested connecting portion 115 is ineffective.

[0058] The maximum measured value Dmax is generally in the range of 200 mm to 250 mm, and among them, the minimum measured value Dmin is preferably in the range of 100 mm to 125 mm and / or the measured value Dj of the connecting portion 115 is in the range of 20 mm to 80 mm.

[0059] In summary, the specific configuration requirements of the waterproof assembly 11 require the inner top waterproof element 111 and the outer top waterproof element 112 of the top waterproof device associated with one roof element 1.1 to be positioned in a nested relationship different from that of the top waterproof device associated with another roof element 1.2. For example, the top waterproof device of the waterproof assembly 11 located at the position shown in Figure 3 can be used for the roof window 1.1 on the left side in Figure 1 , while the waterproof assembly 11 located at the position shown in Figure 4 can be used for the roof window 1.2 on the right side.

[0060] Hereinafter, the method of manufacturing the waterproof assembly as described above will be described in more detail.

[0061] The inner top waterproof element 111 and the optional corner section 1113 are formed as an integral piece of sheet metal material, and the outer top waterproof element 112 is formed as a separate piece of sheet metal material. The inner top waterproof element 111 and the outer top waterproof element 112 are thus supplied in a disassembled state and are configured to be connected in the installed state by overlapping the outer top waterproof element 112 with the inner top waterproof element 111 and optionally engaging the nested connecting portion 115.

[0062] The present utility model is not limited to the embodiments shown and described above, but can be variously modified and combined.

[0063] The present utility model can also be understood from the following paragraphs:

[0064] 1. A method of manufacturing a waterproof component according to any one of the preceding paragraphs, characterized in that the inner top waterproof element (111) and optionally the corner section (1113) are formed as a single-piece metal sheet material part, and the outer top waterproof element (112) is formed as a separate metal sheet material part, the inner top waterproof element (111) and the outer top waterproof element (112) being thus supplied in a disassembled state and configured to be connected in the installed state by overlapping the outer top waterproof element (112) with the inner top waterproof element (111) and optionally engaging the nested connection part (115).

[0065] List of reference numerals

[0066] 1.1 Roof element / roof window

[0067] 1.2 Roof element / roof window

[0068] 2.1 Frame

[0069] 2.11 Top frame member

[0070] 2.12 Side frame member

[0071] 2.13 Side frame member

[0072] 2.2 Frame

[0073] 2.21 Top frame member

[0074] 2.22 Side frame member

[0075] 2.23 Side frame member

[0076] 3 Roof structure

[0077] 31 Rafter

[0078] 32 Lath

[0079] 33 Capping

[0080] 11 Waterproof component

[0081] 111 Inner top waterproof element

[0082] 1111 First leg

[0083] 1112 Second leg

[0084] 1112a Engaging device

[0085] 1113 Corner section

[0086] 1113a Upright part

[0087] The edge part of the 1113b corner section

[0088] 1113d Lower outer edge

[0089] 1113e Slit-shaped recess

[0090] 1114 Ridge part

[0091] 112 Outer top waterproof element

[0092] 1120 Base

[0093] 1120a Top joining device

[0094] 1120b First side joining device

[0095] 1120c Second side joining device

[0096] 1120d Curved outer edge part

[0097] 1120e Notch

[0098] 113 Side waterproof element

[0099] 114 Extended waterproof element

[0100] 1114e Side edge

[0101] 115 Telescoping connection part

[0102] D Tilt direction

[0103] W Width direction

[0104] H Height direction

[0105] Dmax Maximum measured value

[0106] Dmin Minimum measured value

[0107] Dj Measured value of the connection part

Claims

1. A flashing assembly (11) for a roof element (1.1, 1.2), the flashing assembly (11) being configured to be installed in an inclined roof structure (3), the roof structure (3) defining an inclined direction (D) and comprising a frame (2.1, 2.2), the frame (2.1, 2.2) having a top frame member (2.11, 2.21) and a bottom frame member both extending horizontally in a width direction (W) in an installed state of the roof element, and two side frame members (2.12, 2.13, 2.22, 2.23) extending in the inclined direction (D) in an installed state of the roof element, the flashing assembly (11) comprising a top flashing device, the top flashing device being configured to extend along the top frame member (2.21) in an installed state of the flashing assembly (11), It is characterized in that The top waterproof device comprises at least one pair of an inner top waterproof element (111) and an outer top waterproof element (112), and Each inner top flashing element (111) and the associated outer top flashing element (112) are configured to be interconnected in a telescopic joint (115).

2. The waterproof assembly according to claim 1, characterized in that: Each inner top flashing element (111) comprises a first leg (1111) configured to extend upwardly along the outer side of the top frame member (2.11, 2.21) and a second leg (1112) configured to extend substantially in a plane with the roof structure (3) and comprising a coupling device (1112a) configured to form a part of the telescopic connection (115).

3. The waterproof assembly according to claim 2, characterized in that: Each outer top flashing element (112) comprises a substantially planar base (1120) provided with top engaging means (1120a) at an inner edge portion configured to form a part of the telescopic joint (115).

4. The waterproof assembly according to claim 2 or 3, characterized in that: The outer edge portion of the second leg (1112) is bent to form the engaging device (1112a) of the inner top waterproof element (111) to engage with the engaging device (1112a) formed by the bent inner edge portion of the outer top waterproof element (112).

5. The waterproof assembly according to claim 3, characterized in that: Each inner top flashing element (111) comprises, at each side, a corner section (1113), which is separated from the second leg (1112) by a ridge portion (1114).

6. The waterproof assembly according to claim 5, characterized in that: Each outer top waterproofing element (112) includes a first side joining device (1120b) and a second side joining device (1120c), wherein the first side joining device (1120b) and the second side joining device (1120c) are located at opposite side edge portions of the base (1120) to engage with a third side joining device of the corner segment (1113) of the inner top waterproofing element (111), wherein the third side joining device of the corner segment (1113) is formed by an edge portion (1113b) of the corner segment (1113).

7. The waterproof assembly according to claim 6, characterized in that: Each outer top waterproofing element (112) is provided with a cutout (1120e), the extension of the cutout (1120e) in the width direction (W) substantially corresponding to or exceeding the width of the corner section (1113).

8. The waterproof assembly according to claim 7, characterized in that: The width of the cutout (1120e) substantially corresponds to the spacing between the end of the top engaging means (1120a) and the first side engaging means (1120b).

9. The waterproof assembly according to any one of claims 1 to 3, characterized in that: The inner top flashing element (111) is configured to cooperate with the side flashing elements (113), optionally at the corner sections (1113).

10. The waterproof assembly according to claim 9, characterized in that: The inner top waterproof element (111), the outer top waterproof element (112) and the side waterproof element (113) are configured to cooperate with the extension waterproof element (114).

11. The waterproof assembly according to any one of claims 1 to 3, characterized in that: The inner top waterproofing element (111) and the outer top waterproofing element (112) define a maximum measurement (Dmax) in the inclination direction (D), the maximum measurement (Dmax) corresponding to a position in which the outer top waterproofing element (112) overlaps the inner top waterproofing element (111) to a lesser extent and the telescopic connection (115) is fully established.

12. The waterproof assembly according to claim 11, characterized in that: The inner top waterproofing element (111) and the outer top waterproofing element (112) define a minimum measurement value (Dmin) in the inclination direction (D), and the minimum measurement value (Dmin) corresponds to a position in which the outer top waterproofing element (112) overlaps the inner top waterproofing element (111) to a large extent and the telescopic connection (115) is inactive.

13. The waterproof assembly according to claim 12, characterized in that: The maximum measurement value (Dmax) is in the range of 200 mm to 250 mm, and wherein the minimum measurement value (Dmin) is in the range of 100 mm to 125 mm and / or the measurement value (Dj) of the connecting portion (115) is in the range of 20 mm to 80 mm.

14. The waterproof assembly according to claim 10, characterized in that: The inner top waterproof element (111), the outer top waterproof element (112) and the side waterproof element (113) are configured to cooperate with the extended waterproof element (114) by engaging the side edge (1114e) of the extended waterproof element (114) with a slit-shaped recess (1113e) formed between the lower outer edge (1113d) and the edge portion (1113b) of the corner section (1113).

15. A roof element system, characterized in that The roof element system comprises at least two roof elements (1.1, 1.2), the at least two roof elements (1.1, 1.2) being configured to be installed adjacent to each other in a width direction (W), each roof element comprising a frame (2.1, 2.2), the frame (2.1, 2.2) having a top frame member (2.11, 2.21) extending horizontally in an installed state of the roof elements, wherein the top frame member (2.11) of one roof element (1.1) is located at a different position in the inclined direction (D) than the top frame member (2.21) of an adjacent roof element (1.2), and wherein the flashing assembly (11) according to any one of claims 1 to 13 is arranged and configured so that the inner top flashing element (111) and the outer top flashing element (112) of the top flashing device associated with one roof element (1.1) are positioned in a different overlapping relationship than the top flashing device associated with another roof element (1.2).

Images