ES2525370T3 - Cover for corrugated roof - Google Patents

Abstract

A flashing for corrugated roofing (1) or corrugated roofing materials, arranged in the transition between the roofing material (1) and an outstanding structure (2) of the building, p. eg, a chimney, a skylight frame or a wall, where said flashing comprises a first outer layer (4) of a water-tight laminated material that is plastically deformable, characterized in that the flashing includes a second layer (6 ) of laminated material that is substantially non-deformable and is disposed under the first plastically deformable material (4) and located on the cover material, and where the second layer (6) of laminated material is attached to the top of the ridges (1 ') of the material of the corrugated roof (1) in an area adjacent to the structure (2), where at least part of the second layer extends through the top of the ridges (1') to form a substantially flat surface (7) on the ridges (1 ') in the area adjacent to the structure (2) of the building.

Description

E13154373

03-12-2014

DESCRIPTION

Cover for corrugated roof

Field of the Invention

The present invention relates to a flashing for a corrugated roof, which is provided in the transition between the roof and an outstanding structure of the building, e.g. eg, a fireplace, a skylight frame, a wall or the like. The invention also relates to a method for installing said flashing.

Background of the invention

Flashes have been used for centuries to keep the transition between building structures and the adjacent roof airtight against water. Previously, lead was widely used in laminated form, although it has been banned for sanitary reasons, and other materials are currently used

flexible and deformable.

When applying flashing on corrugated roofs there is the problem of depressions in the flashing near the building structure. The flashing adapts to the contour of the corrugated roof so it has ridges and grooves similar to those of the roof. When the flashing adapts to the structure of the

In a straight or non-wavy building, there will be a border surface where the wavy contour changes to a different profile, often to a smooth or straight surface. In the transition, a concave contour will appear as a hollow or depression, where rainwater can accumulate. This is not desirable since any crack in the flashing material, possibly caused by mechanical stress or even walking on the roof, will cause water to seep into the building through the transition. In addition the presence of water (liquid) will cause a deterioration of the

20 material even in so-called non-corrosive materials, due to the influence of water often combined with corrosive pollutants from the air, such as, for example, fumes from leaks etc.

Object of the invention

The object of the invention is to mitigate the problems of the prior art and to provide a flashing without gaps or depressions in the transition between a corrugated roof and a non-corrugated building structure. In addition, it is the object of the invention to provide a flashing that can withstand mechanical actions on its

upper and outer surface without yielding or cracking.

Description of the invention

The flashing provided in the transition between a cover and a structure according to the invention is unique since said flashing includes a second layer of laminated material, which is

30 substantially non-deformable and is disposed below the first plastically deformable material, and is used on the cover or structure, and this second layer of laminated material during use is attached to the top of the ridges of the corrugated cover in an area adjacent to the structure, where at least part of the second layer extends along the top of the ridges so that it forms a substantially flat surface over the ridges in the area adjacent to the building structure.

The method of installing a flashing according to the invention uses an outer layer of plastically deformable and water-proof laminated material and an inner layer of a substantially non-deformable laminated material, where the method includes the following steps:

a) place and fasten a strip or section of non-deformable laminated material on the ridges of the corrugated roof, so that a substantially flat surface of the inner layer of material is installed

40 non-deformable laminate adjacent to the building structure;

b) apply the outer layer of plastically deformable and water-resistant laminated material in the transition between the roof and the building structure, so that the strip or section of non-deformable laminated material is completely covered.

By providing a piece of a substantially non-deformable and rigid laminate material below the

It is possible to provide an approximately smooth surface in an area near and adjacent to the building structure. Therefore, a gap or depression is avoided and the water that falls from top to bottom on a corrugated roof is not accumulated in the area near the structure of the building. On the one hand, the second layer of non-deformable material is preferably arranged directly on the cover, with the first deformable layer directly in contact with the

First layer, although some embodiments with additional layers are possible within the scope of the invention. Similarly, it is possible to use an additional layer between the second deformable layer and the cover, within the scope of the invention.

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The piece of non-deformable material can simply be a rectangular strip or section, and the transition between the smooth zone that occurs in the non-deformable material and the corrugated cover can be covered with the layer of deformable material.

However, a smoother transition can be achieved in a preferred embodiment of the flashing.

5 arranged in the transition between a roof and a structure according to the invention, where the second layer of laminated material is provided as a section or strip that includes an adaptable area on a side edge away from the structure of the building, where the edge Side has a plurality of grooves that extend a length from the side edge towards the adaptable area, where the dimension and the separation of the grooves is such that the adaptable zone can be perfectly adjusted to the ridges and grooves of the corrugated cover. Slots

10 are arranged with adequate separation so that a series of relatively narrow strips is formed, which will have a certain flexibility. The strips thus formed will make the area with grooves adaptable to the ridges and grooves of the adjacent cover, so that a smooth transition will be formed from the corrugated cover to the smooth part of the non-deformable surface. The smooth transition that forms in the adaptive zone of the non-deformable laminate will form a mechanically rigid base for the deformable top layer of material

15 laminate, increasing the strength and durability of the latter.

Accordingly, in a preferred embodiment of the method according to the invention, the strip or section of the inner layer of non-deformable laminate material before its application on the cover is arranged with a plurality of grooves in an area that extends a length from a side edge of the section or strip, where the dimension and separation of the grooves is such that it provides an adaptable area so that it fits perfectly

20 to the ridges and grooves of the corrugated roof, where the strip or section of the non-deformable laminate is positioned on the roof so that the free side edge that borders the adaptable area is away from the building structure.

It is preferred that the fastening of the second layer of laminated material to the ridges is done by gluing, e.g. eg with glue. In addition, it is preferred that the second layer of material be made from a synthetic material based on PVC.

Description of the drawings

The embodiments of the invention are described in greater detail with reference to the drawings, in which:

Fig. 1 shows a sectional view of an example of a prior art flashing;

Fig. 2 shows a sectional view of a first embodiment of a flashing disposed in the transition between a cover and a structure according to the invention;

Fig. 3 shows a sectional view of a second embodiment of a flashing disposed in the transition between a cover and a structure according to the invention;

Fig. 4 shows a plan view of a strip of a non-deformable laminate used in the second embodiment of the invention; Y

Fig. 5 shows the same as Fig. 4, although in a perspective view and arranged on a corrugated roof.

Detailed description of the illustrative embodiments

In Fig. 1 a flashing of the prior art is shown on a corrugated cover 1, where

40 designates a structure of the building as a wall or a chimney with the number 2 and a roof slat with the number 3. The layer of flashing material 4 is known per se and has to be waterproof against the weather, weatherproof and deformable in a plastic manner, so that a sheet of the material can be adapted to the contour of the cover 1 when pressed against the grooves of the cover 1 and is permanently deformed. The flashing 4 can be made of PerformTM, a synthetic laminate of a composite nature, e.g. eg

45 with a mesh of metal wires embedded in the material, although other materials can be used.

From Fig. 1, it turns out that the flashing 4 covers the gap between the corrugated cover 1 and the structure 2, and that the adaptability of the flashing 4 produces a gap 5 close to the structure 2. Rainwater will accumulate there without possibility drainage, since the ridges 1 'of the roof form barriers on the sides. Any cracks in material 4 will cause water to seep into the construction of the underlying building.

In a first embodiment of the invention, a relatively rigid strip of a non-deformable laminated material 6 is glued to the ridges 1 'of the cover 1, thus forming a smooth and almost flat base near the structure of the building 2 on the part top of the ridges 1 '. After that, the deformable top layer of deformable laminate 4 is applied over the laminate 6, while following the contour of the structure 2, the strip of laminate 6 and the ridges 1 'and grooves 1' 'of the roof 1, respectively. Of the

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Fig. 2, it turns out that the layer designated with 6 now produces a smooth zone 7 close to structure 2. Although it has an internal corner in the transition between cover 1 and structure 2, water is now allowed to flow into the sides and drain in the usual manner in such roof constructions. In addition, the upper layer 4 of deformable material can now form an approximately horizontal section between the smooth zone 7 and the surface

5 at the bottom of a groove 1 ’, so that water will not tend to accumulate there, but will flow into zone 7 and drain on the sides in the manner known in the art.

In a second embodiment of the invention shown in Fig. 3, the non-deformable layer of laminated material is provided as a strip 8 that is wider and with a plurality of slots 9 transverse to a side edge 10, cf. Fig. 4, thus forming an adaptable zone 11 of a flexible foil despite the fact that the material

10 of the strip is a fairly rigid laminated material. In Fig. 4 a plan view of the strip 8 is shown before being used, with the adaptable zone 11 and the continuous zone 12. Fig. 5 shows the strip 8 when placed on a corrugated roof 1 made with tiles artificial, where it appears that the adaptable zone 11 with the grooves 9 fits the contour of the tiles, while the continuous zone 12 remains smooth and almost in a plane between the three ridges 1 'on which the strip 8 rests.

15 After placing the layer or strip 8 of non-deformable material in the position shown in Fig. 3 and sticking the strip 8 to the ridges 1 'of the cover, the upper layer 4 of deformable material is applied in the manner known per se se, like the top layer of the flashing. For clarity, the edge 13 of the layer 4 is shown ending at the open face of the cover 1, while in practice, this edge 13 will often be sealed or inserted between the roof tiles or roof plates superimposed on the sides. of a better tightness. The top layer 4 is now

20 mechanically supports by means of the underlying strip or sheet 8 of the grooved area 11 of the non-deformable laminate, leveling the transition between the flat area 7 and the contours of the cover 1 and additionally providing resistance to the finished flashing.

The material used for the non-deformable laminate material 6, 8 is preferably a PVC-based roofing material, e.g. eg, from the registered trademark Sika, or other materials with the same properties.

The claims encompass other embodiments different from those described above. The fastening of the strip of non-deformable material can be carried out by means other than by gluing, e.g. eg, by clamps of various types. In addition, other types of laminated material for the flashing can be used if they meet the requirements of stiffness and plastic deformability, as described above.

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Claims (8)

5 10 fifteen twenty 25 30 35 40 E13154373 03-12-2014

one.

A flashing for corrugated roofing (1) or corrugated roofing materials, arranged in the transition between the roofing material (1) and an outstanding structure (2) of the building, p. eg, a chimney, a skylight frame or a wall, where said flashing comprises a first outer layer (4) of a water-tight laminated material that is plastically deformable, characterized in that the flashing includes a second layer (6 ) of laminated material that is substantially non-deformable and is disposed under the first plastically deformable material (4) and located on the cover material, and where the second layer (6) of laminated material is attached to the top of the ridges (1 ') of the material of the corrugated roof (1) in an area adjacent to the structure (2), where at least part of the second layer extends through the top of the ridges (1') to form a substantially flat surface (7) on the ridges (1 ') in the area adjacent to the structure (2) of the building.

2.

The flashing according to claim 1, wherein the second layer (6) of laminated material is provided as a section or strip (8) that includes an adaptable area (11) on a side edge that during use is away from the structure of the building, where the adaptable zone (11) is provided with a plurality of grooves (9) that extend a length from the lateral edge to the adaptable zone (11), and where the dimension and spacing of the grooves (9) it is such that the adaptable zone (11) can be perfectly adjusted to the ridges (1 ') and grooves of the corrugated roof material (1).

3.

The flashing according to claims 1 or 2, wherein the fastening of the second layer (6) of laminated material (6) of laminated material to the ridges (1 ’) is provided by gluing, e.g. eg with glue.

Four.

The flashing according to any of the preceding claims, wherein the second layer (6) of material is manufactured from a synthetic material based on PVC.

5.

 The flashing according to any of claims 2-4, wherein the outer layer (4) and the second layer

(6) are, at least partially, joined outside the adaptive zone (11). 6. A method for installing a flashing according to claim 1 in corrugated or corrugated roof structures, arranged in the transition between the roof (1) and a building structure (2), p. For example, a chimney, a skylight or a wall, using an outer layer (4) of deformable and water-tight laminated material and an inner layer (6) of a substantially non-deformable laminated material, which includes the steps: a) place and secure a strip or section (8) of non-deformable laminated material on the ridges (1 ’) of the corrugated cover (1), so that a substantially flat surface (7) of the inner layer is installed

(6)

of non-deformable laminated material adjacent to the building structure (2);

b) apply the outer layer (4) of plastically deformable and water-resistant laminated material in the transition between the roof (1) and the structure of the building (2), so that the strip is completely covered

or section of non-deformable laminate.

7.

A method according to claim 6, wherein the strip or section (8) of the inner layer (6) of non-deformable laminate material prior to application on the cover is arranged with a plurality of grooves (9) in an area that a length extends from a lateral edge of the section or strip, where the dimension and separation of the grooves (9) is such that it provides an adaptable area so that it fits perfectly to the ridges and grooves of the corrugated cover (2), where the strip or section (8) of the non-deformable laminate is placed on the cover (2) so that the lateral edge (13) that borders the adaptable area is away from the structure of the building (2).

8.

A method according to claim 6 or 7, wherein the inner layer of laminated material is attached to the ridges (1 ') by gluing, e.g. eg with glue.

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