NL2023175B1 - Underlay for roofing or facade cladding elements - Google Patents

Abstract

Excerpt The invention relates to an underlay element for sealing a seam between two adjacent roofing or facade cladding elements, comprising a flat guide part 5 which extends parallel to the seam under the roofing or facade cladding elements and which is bounded on both sides by in the direction of the roofing or facade cladding elements have upright side walls, and a suspension part arranged near an upper end edge of the guide part, in the same direction as the side walls, which suspension part extends transversely to the seam. The invention also relates to an assembly of two adjacent roofing or facade cladding elements and such a supporting element. The invention further relates to a roof covering or wall cladding which is made up of a large number of such assemblies. And finally, the invention relates to a roofing or facade cladding element intended for use in such an assembly.

Description

The invention relates to an underlay element for sealing a seam between two adjacent roofing or cladding elements, in particular roofing or cladding elements of ceramic material.

It is known to cover roofs with elements of ceramic material, such as roof tiles. The roofing elements or roof tiles are placed one above the other in rows, partly overlapping. To prevent the penetration of moisture, such as rain water or melt water, between adjacent roof tiles, the side edges of roof tiles are often provided with complementary profiles that can interlock. This means that roof tiles are often asymmetrical, with an upper profile on one side and an underlying profile on the other side. Roof coverings are also known in which use is made of two different types of roof tiles, which are laid alternately.

In recent years, the facades of buildings are also increasingly clad with elements that overlap each other in a roof tile manner. These are elements that, just as with roof coverings, are suspended in partly overlapping rows one above the other on a facade. Compared to conventional masonry, façades covered in this way have the advantage that joints are not necessary. This makes the facade cladding more durable and requires less maintenance. In contrast to conventional roof tiles, however, such facade cladding elements do not have profiled side edges, but adjacent cladding elements are attached abuttingly against each other with their side edges. For architectural reasons, such facade coverings usually continue into the roof covering, which is then designed in a corresponding manner. Because there is a risk of moisture penetrating through the seams between two adjacent, non-overlapping cladding elements, additional measures must be taken in this case to seal the roof and facade moisture-tight. To this end, an additional moisture-proof layer often has to be applied over the entire surface of the roof covering and / or facade cladding, making the construction complex and expensive. GB 2 131 060 A already describes a water drainage element for use under a slate roof covering. This element consists of a relatively wide plate that can extend under several slates. The plate is provided with a number of parallel recessed parts and a hanging edge extending downwards over the entire width of the plate. With this hanging edge, the plate is hung on a batten of a roof construction.

GB 2 454 368 A describes a sealing element for use at the transition between a frame for solar panels and a regular roof covering with roof tiles. The sealing element is approximately W-shaped in cross section and is folded from a single sheet. An upright wall on one side of the element engages under a side edge of the solar panel frame, while an angled inward side wall on the other side supports an edge of a roof tile. A central wall is formed between the side walls.

WO 97/37387 A describes a support element for use under solar panels. The underlay element is relatively wide and asymmetrical, with a wide gutter on one side and a number of support backs next to it. The element is provided with a number of suspension cams at the bottom. Lowered drainage channels are formed between the gutter and the ridges.

The object of the invention is to provide an underlay element with which a seam between two adjacent roofing or facade cladding elements can be sealed quickly and simply, which underlay element can be produced in large numbers at relatively low cost and is easy to handle for a roofer or facade cladding.

According to the invention this is achieved by such a support element comprising a substantially flat guide part which is arranged to extend substantially parallel to the seam under the roofing or cladding elements, and which is bounded on either side by in the direction of the roofing or facade cladding elements upright side walls, as well as at least one suspension part arranged near an upper end edge of the guide part, in the same direction as the side walls, upright suspension part, which is adapted to extend substantially transversely of the seam.

By making use of a base element with an upright suspension part near the top edge, this element can be fitted quickly and easily under two adjacent roofing or facade cladding elements. Due to the upright side walls, moisture that penetrates through the seam between the elements is retained on the guide part and thus discharged to a lower end edge of the underlay element, which will be located above a next row of roofing or cladding elements. Because the roofing or facade cladding elements are staggered in successive rows, there is never another seam under a seam in a particular row. The moisture thus flows from the underlay element over an underlying roofing or facade cladding element at a point where there is no seam.

For a simple mounting of the support element, the at least one suspension part can extend substantially along the entire end edge of the guide part. In this way the support element is evenly supported.

The side walls of the underlay element can be spaced from the at least one suspension part. Thus, space is formed between the suspension part and the side walls for a protruding top edge or nose of the roofing or facade cladding element to be discussed below.

In order to prevent moisture leakage from the underlay element into the construction, the side walls may extend to near a lower end edge of the guide member opposite the upper end edge.

In order to prevent “flooding” of the underlay element with large amounts of moisture, for example in case of heavy rainfall, the lower end edge of the guide part can be longer than the upper end edge, and the side walls can move from the top end edge in the direction of the lower end edge. diverge. Thus, a channel is formed between the side walls with a cross-section increasing in the direction of flow.

Each side wall may have a height viewed from the guide portion, and the height of each side wall may increase from the top end edge towards the bottom end edge. This measure also increases the cross-section of the channel bounded by the side walls in the direction of flow.

From the top end edge. an upright partition wall can extend substantially parallel to the seam. By placing this partition wall in the seam between the adjacent roofing or facade cladding elements, the underlay element can be accurately positioned.

The dividing wall can extend to near the lower end edge of the guide part and be placed in the seam over its entire length. The wall then actually separates the moisture on the guiding surface into two partial flows. On the other hand, it is also conceivable that a short dividing wall is formed only in the vicinity of the suspension part, solely for positioning the support element.

The support element can further be provided with at least one rib protruding from the guide part opposite to the side walls. The guide surface is supported and reinforced by such a rib, so that the risk of deformation is less.

The at least one rib can herein be adapted to extend substantially parallel to the seam.

The guide portion may be substantially planar between the top and bottom end edges. An easy-to-construct support element is thus obtained.

On the other hand, the guide part can be kinked or stepped between the top and bottom end edges. As a result, the underlay element can be adapted to the shape of the roofing or facade cladding elements, and the drainage of moisture can be improved.

The pad may be substantially symmetrical with respect to a median longitudinal plane adapted to enclose the seam. By designing the support element symmetrical, it can be manufactured and installed in a simple manner.

A greatest distance between the side walls of the underlay element can be smaller than a width of a roofing or cladding element. In this way, a support element is obtained which extends over only a small part of the width of the roofing or facade cladding elements, only in the vicinity of the seam between them. As a result, the material consumption and thus also the costs of the support element is limited.

The support element can be made of plastic or metal. These are materials that are liquid-tight. The underlay element can be manufactured as a whole, for instance by bending or bending. In addition, a plastic underlay element can also be manufactured by injection molding or 3D printing.

The invention further relates to an assembly of two adjacent roofing or facade cladding elements and a supporting element as described above.

In one embodiment of the assembly, each of the roofing or facade cladding elements may have at least one recess near its side facing the other roofing or facade cladding element for receiving a part of the underlay element. In this way it is prevented that the roof covering or wall cladding element will locally come loose from the underlying construction due to the presence of the underlay element.

When each roofing or facade cladding element has a visible side, the at least one recess can be formed in an underside of the roofing or facade cladding element remote from the visible side. The underlay element is thus not visible on the visible side of the roof covering or facade cladding.

Each roofing or facade cladding element can have a suspension edge extending in a direction away from the visible side at least near a top side thereof, and the at least one recess can be formed in said suspension edge. In any case, the underlay element is suitably received at the top of the roofing or facade cladding element.

Furthermore, each roofing or facade cladding element can have at least near an underside thereof a support edge extending in the direction away from the visible side, in which a recess can optionally also be formed. For instance, the underlay element could be completely incorporated into both edges of the roofing or facade cladding element.

The invention also relates to a roof covering or wall covering which is built up from a large number of assemblies of roof covering or wall covering elements and underlay elements of the above described type.

Finally, the invention also relates to a roofing or facade cladding element which is apparently intended for use in an assembly as described above.

The invention is now further elucidated on the basis of a number of examples, reference being made to the appended drawing, in which corresponding parts are indicated with the same reference numbers, and in which:

FIG. 1 is a front view of part of a facade cladding that has been built up

5 rows of facade cladding elements, partly overlapping each other, with an underlay element according to the invention under each seam;

FIG. 2 is a perspective bottom view of a facade cladding element from the facade cladding of FIG. 1;

FIG. 3 is a perspective view of a first embodiment of a supporting element for use in the facade cladding of FIG. 1, in which two adjacent facade cladding elements defining a seam therebetween are shown in dotted lines;

FIG. 4 shows an alternative embodiment of the support element of FIG. 3, which is provided with a rib protruding from its guide surface;

FIG. 5 shows a variant of the support element of FIG. 4, which is provided with a partition wall protruding from the guide surface opposite the rib;

FIG. 6 shows yet another embodiment of the underlay element, for use with facade cladding elements of a greater height, which has a longer guide surface, longer side walls and a longer partition wall;

FIG. 7 shows a variant of the support element of FIG. 6, which has three ribs at the rear of the guide surface;

FIG. 8 shows an embodiment of the underlay element in which the guide part between the top edge and the bottom edge is not flat but bent twice;

FIG. 9 shows a variant of the support element of FIG. 8 with a partition;

FIG. 10 shows a variant of the support element of FIG. 9 with a rib at the back;

FIG. 11 shows a variant of the support element of FIG. 9 with a plurality of flow guides on the inside of the side walls;

FIG. 12 shows a variant of the support element of FIG. 10 with three ribs at the back;

FIG. 13 shows an embodiment of the underlay element in which the guide part between the top edge and bottom edge is stepped once and kinked once;

FIG. 14 shows a variant of the support element of FIG. 9 with only a short partition wall at the location of the free space between the side walls and the suspension part;

FIG. 15 shows a variant of the support element of FIG. 14 with a rib at the back;

FIG. 16 shows a variant of the support element of FIG. 8 with a rib at the back; FIG. 17 shows a short variant of the support element of FIG. 9, for use with facade cladding elements with a lower height: fig. 18 shows an embodiment of the underlay element which is suitable for use with a bottom row of roofing or cladding elements that connect to a gutter; FIG. 19 shows a shorter variant of the support element of FIG. 18 for use on roofing or cladding elements with a reduced height; FIG. 20 is a section through the facade cladding along the line XX-XX in FIG. 1, wherein a support element according to FIG. 9 has been applied; FIG. 21 shows a perspective front view of a part of a facade cladding in which the cladding elements have been applied in stretcher bond; FIG. 22 is a rear perspective view of the siding of FIG. 21; and FIG. 23 and with FIG. 20 is a corresponding cross-section showing another method of attachment to the facade.

A facade cladding 1 is here formed by a number of rows of facade cladding elements 2 placed one above the other (Fig. 1). Each facade cladding element 2 has an upper edge. 4, a bottom edge 5 and two side edges 7, The adjacent facade cladding elements 2 in a row are placed abutting against each other with their side edges 7, so do not overlap each other in the horizontal direction, but define a seam in between each time 3. In the example shown, the facade cladding elements are arranged in three rows 1, IL, UI, wherein the bottom edges 5 of the facade cladding elements 2 in each row I, II overlap the top edges 4 of the facade cladding elements 2 in a row IL U1 located immediately below it in a vertical direction. The facade cladding elements 2 are thus arranged in a roof tile manner, so that no moisture can penetrate between two successive rows.

In order to prevent moisture from reaching a rear facade 8 through a seam 3 between two adjacent facade cladding elements 2, an underlay element 6 is arranged behind each seam 3, which will be explained in more detail below.

Each facade cladding element 2 here has, near its top side 4, a suspension edge or nose 11, which protrudes at the rear 9 of the element 2, opposite the front side or visible side 10 (Fig. 2). With the aid of this hanging edge or nose 11, the facade cladding element 2 is suspended from a horizontal batten 12 (Fig. 20-22), which in turn is attached by means of screws 13 to a frame 14 attached to the facade 8. 2 hangs almost vertically here, it is not only hung but also attached to the horizontal batten 12. To this end, a number of holes 15 are formed in the facade cladding element 2, through which screws 16 are inserted which are screwed into the horizontal batten 12.

In addition, in the example shown, each facade cladding element 2 has a support edge 17 near its underside 5, which also protrudes at the rear 9. This support edge 17 bears on the visible side 10 of a facade cladding element 2 in a lower row, which is furthermore similarly attached to the facade 8 is attached. The facade cladding element 2 thus has the shape of a bridge in cross-section.

The supporting edges 17 of the elements 2 in the bottom row of the facade cladding 1 no longer rest on elements in a bottom row. That is why the lower horizontal slat 19 (Fig. 21, 22) is made thicker than the other slats 12. Thus, the rear sides 9 of the facade cladding elements 2 in the bottom row can rest directly on the lower slat 19, whereby the visible sides 10 of these elements 2 nevertheless run parallel to those of the elements 2 arranged above it. There where, in each case, between the adjacent facade cladding elements 2 in the higher rows, a support element 6 according to FIG. 9 is arranged, between each pair of elements 2 in the bottom row of the facade cladding 1 a support element 6 according to FIG. 18 is applied, which can conduct the moisture to a gutter arranged under that row (not shown here).

In another variant, the facade cladding elements 2 can be suspended and attached to horizontal profiles 12, which are attached to vertical profiles 14 by means of screws 13 (Fig. 23).

As stated, a support element 6 extends underneath (and in this example at an angle behind) a seam 3 between two adjacent facade cladding elements 2. As shown in Fig. 22, in the example shown, this support element 6 is received in recesses 18 in the suspension edge 11, so that the facade cladding element 2 does not come loose from the rear construction at the location of the support element 6. These recesses 18 are schematically shown in the rear view of a facade cladding element 2 in FIG. 2, where it can be seen that they extend from the side edge 7 over only a small part of the hanging edge 11.

The support element 6 comprises a flat guide part 20 which, in the assembled state, extends substantially parallel to the rear side 9 of the facade cladding element 2 (and thus also to the seam 3). This guide part 20 has side edges 21 and is bounded on either side by side walls 22 (Fig. 3) standing up from the side edges 21 and extending to the facade cladding element 2. Furthermore, the guide part 20 has an upper edge 23 and a lower edge 24. From the top edge 23 extends an upright suspension part 25, which extends substantially transversely of the side walls 22 and transversely of the seam 3. The suspension part 25 stands upright, and thus, like the side walls 22, extends towards the facade cladding element 2. The suspension part 25 is therefore not intended for cooperation with the horizontal lath 12 attached to the facade 8, but is suspended from an outside 26 of the wall. the suspension edge 11 of the facade cladding element 2. The suspension part 25 is situated at some distance from the side walls 22, so that a receiving space 27 is formed between them for the suspension edge 11 of the facade cladding element 2.

In order to give the guide part 20 and thus the entire bearing element 6 more rigidity and strength, a rib 28 can protrude from the underside or rear side of the guide part 20 (Fig. 4). This rib 28 thus extends in opposite directions to the side walls 22 and the suspension part 25.

Opposite the rib 28, in the center of the guide part 20, an upright partition wall 29 can be formed (Fig. 5), which is directed transversely to the suspension part 25. The partition wall 29 thus runs parallel to the seam 3 and can protrude therein when the underlay element 6 is arranged under two adjacent facade cladding elements 2. The partition wall 29 can extend to near the bottom edge 24 of the guide part 20, but when the guide part 20 is longer the partition wall 29 also end at a distance from the bottom edge 24 (Fig. 6).

The number of ribs 28 can be varied depending on the requirements imposed on the support element 6. In fig. 7, a reinforced embodiment with three ribs 28 is shown.

When the underlay element 6 is used in combination with a facade cladding element 2 of which the hanging edge and supporting edge have different heights, the guide part 2 can be designed in a double-kinked design (Fig. 8). In addition to a flat part defining the free space 27, the element 6 here has an inclined part 30, followed by another flat part 31, which is parallel to the part 27. The side walls 22 are here also made inclined, with a height that is from the top edge 23 to the bottom edge 24 increases evenly.

Also in this embodiment of the underlay element 6, a partition wall 29 can be provided (Fig. 9), optionally in combination with a single rib 28 (Fig. 10) or even three ribs 28 (Fig. 12). For optimum conduction of moisture that is discharged by the support element 6, inclined current conductors 32 can protrude from the side walls 22 near the bottom edge 24.

Instead of double-kinked, the guide part 20 can also be stepped and single-kinked (Fig. 13). Here, between the free space 27 and the part 30 bounded by the side walls 22, there is a wall 33 which is parallel to the suspension part 25.

And instead of a long partition wall, it is also possible to suffice with a short, in this case triangular partition wall 29 at the location of the suspension part 25 and the free space 27 (Fig. 14, 15).

When the underlay element 6 is used in a bottom Tij facade cladding element 2, which connects to a gutter, a downwardly directed part 34 can be formed on the bottom edge 24 (Fig. 18, 19). Although the invention has been elucidated above on the basis of a number of examples, it will be clear that it is not limited thereto.

Thus, the invention can be applied not only to a facade cladding, but also to a roof covering.

In that case, the word “under” should usually be read where “behind” was used for this.

In addition, the invention can be applied with roofing or facade cladding elements of very different shapes, with only a nose or hanging edge, or with protruding edges on the top and bottom.

The scope of the invention is defined solely by the following claims.

Claims (23)

Conclusions t. Underlay element for sealing a seam between two adjacent roofing or facade cladding elements, comprising a substantially planar guide part which is adapted to extend substantially parallel to the seam under the roofing or facade cladding elements and which is bounded on either side by in the upright side walls, and at least one upright hanging part arranged near an upper end edge of the guide part, in the same direction as the side walls, which is adapted to extend substantially transversely of the seam. 2. Support element according to claim 1, wherein the at least one suspension part extends substantially along the entire end edge of the guide part. 3. Support element as claimed in claim 1 or 2, wherein the side walls are spaced from the at least one suspension part. 4. Support element according to any one of the preceding claims, wherein the side walls extend to near a lower end edge of the guide part opposite the upper end edge. The pad according to claim 4, wherein the lower end edge of the guide member is longer than the upper end edge, and the side walls diverge from the upper end edge towards the lower end edge. Support element according to claim 4 or 5, wherein each side wall has a height viewed from the guide part, and the height of each side wall increases from the upper end edge towards the lower end edge. 7. Underlay element according to any one of the preceding claims, wherein an upright partition wall extends from the top end edge, substantially parallel to the seam. 8. Underlay element as claimed in claim 7, wherein the partition extends to near the lower end edge of the guide part. 9. Support element as claimed in any of the foregoing claims, further provided with at least one rib extending from the guide part opposite to the side walls. The pad of claim 9, wherein the at least one rib is arranged to extend substantially parallel to the seam. 11. Underlay element according to any one of the preceding claims, wherein the guide part between the upper and lower end edge is substantially flat. 12. Underlay element as claimed in any of the claims 1-10, wherein the guide part is kinked or stepped between the top and bottom end edge. Underlay element according to any one of the preceding claims, wherein the underlay element is substantially symmetrical with respect to a central longitudinal plane that is adapted to encompass the seam. Underlay element according to any one of the preceding claims, wherein a greatest distance between the side walls is smaller than a width of a roofing or facade cladding element. Support element as claimed in any of the foregoing claims, wherein the support element is made of a plastic or metal. Support element according to any one of the preceding claims, wherein the support element is manufactured as one whole. 17. Assembly of two adjacent roofing or facade cladding elements and a supporting element according to any one of the preceding claims. Assembly according to claim 17, wherein each of the roofing or facade cladding elements has at least one recess near its side facing the other roofing or facade cladding element for receiving a part of the underlay element. Assembly according to claim 18, wherein each roofing or facade cladding element has a visible side and the at least one recess is formed in an underside of the roofing or facade cladding element remote from the visible side. Assembly according to claim 19, wherein each roofing or facade cladding element has a suspension edge extending in the direction away from the visible side at least near one top side thereof, and the at least one recess is formed in the suspension edge. 21. Assembly according to claim 20, wherein each roofing or facade cladding element has a supporting edge extending in the direction away from the visible side at least near an underside thereof. 22. Roof covering or wall cladding that is built up from a large number of assemblies according to any one of claims 17-21, 23. Roof covering or facade cladding element, evidently intended for use in an assembly according to any one of claims 17-21.