EP1228280A1

EP1228280A1 - Roof cover

Info

Publication number: EP1228280A1
Application number: EP00940309A
Authority: EP
Inventors: Hugo Weber
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-02
Filing date: 2000-06-04
Publication date: 2002-08-07
Anticipated expiration: 2020-06-04
Also published as: NO20021840D0; CA2390007C; SI20987A; PL354525A1; HRP20020472A2; CA2390007A1; DK1228280T3; DE20023457U1; SI20986A; SI20988A; CN1382242A; NO20021840L; ATE279609T1; CN1164846C; AU5528700A; HK1048349A1; EP1228280B1; DE29919121U1; EP1473421A1; WO2001033009A1

Abstract

The aim of the invention is to improve the assembly, solidity and efficiency of a roof cover (1) for cleaning and maintaining the clean state of building roofs, particularly with respect to plant growth or environmental pollution. The inventive cover (1) consists of a metal that reacts with moisture, is produced by punching and bending plate-shaped material and is provided with a structured reaction surface (2). A raised part (4) is provided along at least one front face (1a) of the roof cover (1). The raised part can be designed in the form of a bow (10) which allows for a secure and easy assembly by means of hooks (12) and additionally inhibits water from draining off, especially in connection with bulb edges.

Description

description

roofing

The invention relates to a roof covering for cleaning and keeping building roofs clean, in particular vegetation or environmental pollution, consisting of a metal which reacts in connection with moisture, the roof covering being produced from plate-shaped material by punching and bending and having a structured reaction surface.

Such a device for protecting housing roofs against vegetation, in particular against moss and lichen, is known from WO 98/01637 by the applicant. By producing the roof covering from plate-shaped material by means of punching and bending, there is the possibility that the roof covering can be adapted in a simple manner to the shape of the roof tiles or ridge tiles used in the roof covering. In particular, the rounding can be formed at the same time as the punching process, so that an optically appealing design results compared to a simple copper sheet and, in particular, the reaction surface is used for the flowing moisture. Furthermore, there is a simpler installation of the roof covering by the roofer, since the roof covering, which matches the outer shape of the roof tile or ridge tile, can be pushed in or placed on in a simple manner.

In addition, the manufacture by punching the individual roof covering gives the simple possibility that knobs or elevations are embossed in the reaction surface, so that the outflowing moisture must travel as long as possible and at the same time a good distribution of the moisture on the roof surface is ensured. In addition, openings in the form of slots can be made at the same time as punching

BESTATIGUNGSKOPIE be provided, whereby liquid can also react on the underside of the roof covering with the metal underside. As a result, the reaction area can essentially be doubled, so that a considerable reduction in the number of rows to be covered can be achieved with high effectiveness. A row of such a roof covering near the ridge or on the ridge may be sufficient.

In DE-A-41 30 365 copper sheets are still attached to protect the roof covering against moss growth that occurs over the years in the visible area of the roof surface so that they come into contact with rainwater and the draining rainwater covers the largest possible area of the roof cover below the copper sheets overflows. The rainwater releases components, in particular ions, from the copper sheets, which counteract vegetation, in particular moss and lichens, on the concrete or tile roof panels. In this case, the copper sheets are preferably in the form of ridge hoods and arranged along the ridge of the roof so that the moisture flowing off can drain off over the entire roof area. These domed ridge hoods are attached to the front by bow-shaped or strip-shaped brackets (generally made of aluminum) in the area of the roof ridge to secure them against lifting in the event of wind gusts.

The disadvantage here, however, is that, in particular in the embodiment as an inclined copper ridge hood, the flowing copper sulfate solution can flow to the aluminum fastening clip at the lower end edge at the joint area of two ridge hoods and thus destroy it. This means that the entire ridge in the area of the roof saddle is at risk for a long time.

Accordingly, the invention has for its object such a roof covering for cleaning and keeping building roofs in terms of durability and effectiveness and Ease of assembly or improve handling and stability.

This object is achieved by a roof covering according to the features of claim 1.

The increase at the lower end edge of the face reliably prevents water from entering the fastening clip, with a simple, crescent-shaped fold being preferred as the increase. This also improves the effectiveness, since moisture is fed to the reaction field. In addition, the preferred overlap results in a more uniform appearance of the roof covering. Furthermore, the ridges, in particular bends, largely avoid burrs on the side edges, so that this reduces the risk of injury even without complex reworking, and thus improves the handling and assembly for the roofer and the dimensional stability.

For ease of installation, at least one bar with barb-shaped ends running transversely over the roof hood is of essential importance, since this allows the roof covering to be simply hung on the mortar joint or the lower end of the ridge hood. Likewise, in particular to increase the effectiveness, an annular bead that runs around the elevations or depressions of the reaction surface is of independent importance, since this increases the water retention and thus the residence time on the reaction surface.

Further advantageous embodiments are the subject of the dependent claims. It is also essential that the fold on the front edge and possibly the horizontal longitudinal edge can be stamped or bent at the same time as the punching on the top of the roof covering. The same applies to an opposite, downward bend, which is formed on the other end edge. The result of the overlap thus created there is also a visually appealing joint for the brick or concrete ridges of the building roof and increased dimensional stability.

A preferred exemplary embodiment is explained and described in more detail below with reference to the drawing. Here show:

Fig. 1 is a perspective view of a roof covering in

First area; FIG. 2 is an enlarged partial longitudinal sectional view through the roof covering according to FIG. 1; and FIG. 3 shows a half section through a particularly preferred one

Embodiment.

In Fig. 1 a roof covering 1 is shown, each of which is placed on a conventional ridge tile 8 arranged underneath. The ridge tiles 8 are (as shown on the left) each with a fastening clip 7 on the end face to an intermediate battens 7a or the roof truss in the usual way. Then the roof covering 1 made of plate-shaped material, in particular copper sheet, is put over it. This is first punched out during production, and at the same time the curvature can be worked in in the manner of a quarter or third cylinder in the course of the punching process by bending. In addition, a reaction area 2, which is marked by dotting and points outward from the roof surface, is formed by a plurality of elevations or knobs 3 (indicated by circles in FIG. 2) and / or depressions or openings 3 '(see FIG 3) is impressed or pressed out of the reaction surface 2.

According to the innovation, an elevation 4 is provided on the end face la of the reaction surface 2 which faces here to the right and is lower due to the inclination of the hood, in particular in the form of an upward, upturned bevel, as described in more detail below in connection with FIG becomes. The structuring of the reaction surface 2 in the form of raised, pressed out knobs 3 on the one hand inhibits the liquid flow, so that the outflowing moisture (rain water, snow water and the like) has to cover the longest possible path between and along the knobs 3 and on the other hand an even distribution the reaction surface 2 is guaranteed. This is further supported by annular beads 16 (see FIGS. 2 and 3) around the knobs 3 and the depressions 3 '. So that water cannot get to the mounting bracket 7 at the respective joint, a crescent-shaped elevation 4 is provided at the lower end la of the roof covering, so that, in particular in the case of wind or gusts of wind, the outflowing moisture does not reach the mounting bracket 7 of the neighboring one Ridge tile 8 can reach.

This is additionally supported by a bracket 10 shown on the right in FIG. 1, which engages around the ridge tile 8 and divides the reaction surface 2 into several fields 11 (indicated by an arrow). This largely prevents water from drifting sideways. Of particular importance in this bracket 10 is the end configuration, namely in the form of a barb 12 which engages behind the underside 8a or a mortar joint (see also FIG. 3) of the ridge tile 8. As a result, the roof covering 1 is anchored securely and stably, especially if the bracket 10 is made of spring-hard copper. By means of this prestressing, the hood element can thus be slipped over the ridge tile 8, which simplifies assembly and is particularly secure. The bracket 10 (generally two per hood element, cf. also FIG. 2) is preferably guided approximately halfway up in the area of a bend 14 from the outside inwards under the reaction surface 2, so that a simple mounting is achieved. Alternatively, the bracket 10 can also be riveted, glued or screwed. 2 shows the preferred embodiment of the elevation 4, which is bent upward toward the top, in the form of a bevel in a side view, which is formed in one tool during the punching or bending processing. Here, the barrier-like design of the elevation 4 can be seen on the end face la pointing here to the right, which reliably prevents water from entering along the ridge toward the fastening clip 7.

In Fig. 2, two hood-shaped roof coverings 1 are shown in the inserted position on two ridge tiles 8, which may also consist of concrete slabs and each overlap at the joint. Here, on the one hand, the arrangement of the structured reaction surface 2 located on the roof covering 1 can be seen, as well as the elevation 4 extending upwards on the end face 1 a. A sealing cord, a hose, a sealing compound or the like could also be provided on this web-like elevation 4. Like. Be attached or the increase 4 itself are formed by such materials. A similar effect as by the increase 4 is achieved by the bracket 10, which also prevent water from drifting sideways. For this purpose, the brackets 10 can also be arranged on the front ends, in particular if two or three brackets 10 of this type are provided per hood element.

Furthermore, reference should be made to the design of the barbs 12 of the brackets 10, namely here in the form of screws 13 (cf. also FIG. 3), as a result of which a particularly secure anchoring with an adjustable prestress on the mortar joint or on the lower end 8a of the ridge tile 8 is achieved , In addition, the design of the knobs or elevations 3, each with an annular bead 16 (cf. also FIG. 3), shown in FIG. 2 on the left, is of particular importance, since this additionally inhibits the water drainage from the reaction surface 2. This also applies to the complementary alternative shown in FIG. 3 Wells 3 ', so that the residence time and thus reaction effectiveness is increased.

Also of importance is the downward bevel 5 provided in FIG. 2 on the left front edge lc, which results in an exact, drip-proof overlap at the joint. Between the elevation 4 and the bevel 5, a flat gap 9 is thus formed, which also results in ventilation of the building roof. However, the elevation 4 can also rest directly on the bevel 5, possibly with the interposition of an attached hose section or a glued-on seal in the form of a cord or tape or on the bracket 10. A film or a sealing bead made of silicone material is also expedient for this purpose, around water to be able to hold securely from the fastening clip 7. This is also supported by the horizontal alignment of the fold 14 and the bead edges 16.

Due to the overlap at the joint, possibly with the formation of the above-described column 9 of a few millimeters in width, in connection with the relatively large length of the elevations 4 from one longitudinal edge 1b of the roof covering 1 to the other longitudinal edge (not designated) and parallel for this purpose, stirrups 10 for subdivision into several fields 11 provide adequate protection even against moisture, possibly driven by wind and gusts, during violent storms.

In Fig. 3 a half section through the roof covering 1 is shown, from which in particular the course of the bracket 10 through the preferably in the ridge direction and transversely oriented bend 14 to the end with a barb 12 can be seen, as well as the wrap around this in one piece in the simplest way with the bracket 10 formed barb 12, which positively engages in the mortar joint at the lower end 8a of the ridge tile 8 (or other roof element). The barb 12 can, however, also be formed by a short screw 13, which is inserted in the bracket 10, whereby the Anchoring, in particular also by the increased pretension of the bracket 10 when screwing the screw 13 to the roof is further stabilized.

Also of importance is a profile 15 provided on the lower edge 1b (cf. also FIG. 2), with which the water drainage is substantially delayed, as with the annular beads 16 around the knobs 3 or the depressions 3 '. An opening 17 provided in the pocket-like recess 3 'is also used for this purpose, which is open against the water drainage direction, ie towards the ridge. As a result, a targeted, cascade-like water drainage is also achieved towards the underside, with a residual water volume always remaining in the reservoir-like depressions 3 'and above the profiling 15 or also between the bead borders 16 in order to have a particularly long residence time with the metal, in particular copper the reaction surface 2 to react.

Claims

claims

1. roof covering for cleaning and keeping clean of building roofs, in particular of vegetation or environmental pollution, consisting of a metal reacting in connection with moisture, the roof covering being made of plate-shaped material by punching and bending and having a structured reaction surface, characterized in that along at least one end face (la) of the roof covering (1) is provided with an elevation (4).

2. Roof covering according to claim 1, characterized in that the roof covering (1) consists of copper sheet.

3. Roof covering according to claim 1 or 2, characterized in that the elevation (4) runs along the entire lower end face (la) of the roof covering (1).

4. Roof covering according to one of the preceding claims, characterized in that the elevation (4) is designed as a bend in the reaction surface (2) of the roof covering (1).

5. Roof covering according to one of the preceding claims, characterized in that the elevation (4) is opposite an opposite bend (5) on the other end edge (lc).

6. Roof covering according to one of claims 1 to 5, characterized in that the elevation (4) to the lower edge (lb) are continuously tapered.

7. Roofing according to one of claims 1 to 6, characterized in that the elevation (4) are crescent-shaped.

8. Roof covering according to one of claims 5 to 7, characterized in that a gap (9) is formed between the elevation (4) and the opposite fold (5).

9. Roof covering according to one of claims 1 to 8, characterized in that the reaction surface (2), in particular the upper edge thereof is formed on a bevel (14) extending in the horizontal plane.

10. Roof covering, in particular according to one of claims 1 to 9, characterized in that at least one bracket (10) with end hooks (12) is attached to the roof covering (1).

11. Roof covering according to claim 10, characterized in that the bracket (10) consists of spring-hard copper.

12. Roofing according to claim 10 or 11, characterized in that the hooks (12) are each formed by a screw (13).

13. Roof covering, in particular according to one of claims 1 to 12, characterized in that the reaction surface (2) has a plurality of elevations (3) and / or depressions (3 '), each of which is surrounded by an annular bead (16) ,

14. Roof covering according to claim 13, characterized in that the depressions (3 ') each have an opening (17) oriented opposite to the water outlet.

15. Roof covering according to one of claims 1 to 14, characterized in that the lower edge (lb) of the roof covering (1) is designed as a profile (15).