GB2321479A

GB2321479A - Roof ridge tiles, and their fixing

Info

Publication number: GB2321479A
Application number: GB9726402A
Authority: GB
Inventors: Jan Kaemper
Original assignee: Ossenberg Schule & Soehne
Current assignee: Ossenberg Schule & Soehne
Priority date: 1997-01-24
Filing date: 1997-12-12
Publication date: 1998-07-29
Anticipated expiration: 2017-12-12
Also published as: CZ21098A3; FR2758842B1; NL1008079C2; FR2758842A1; DK1798A; GB2321479B; DK176596B1; PL196995B1; GB9726402D0; CZ292034B6; PL324447A1; DE19702439C1

Abstract

Roof ridge tiles have end edge depending flanges (5) which extend into end edge troughs (4). They are fixed in position by clips (6) which either grip a longitudinal web (6) depending from the tile, as in Fig. 1, or grip a part of the end flange below an aperture formed in the flange, as in Fig.3.

Description

System for Laying Ridge Tiles on the Ridge Lath of a Roof The invention relates to a system for laying ridge tiles on the ridge lath of a roof, comprising ridge tiles which are trough-shaped in cross section and which can be laid in scalelike manner overlapping one another and have, in the overlap region at the end of the overlapped ridge tile a folded overlap groove and at the end of the overlapping ridge tile a folded overlap rib which can be inserted in the folded overlap groove, the folded overlap groove preferably making possible a limited displaceability of the tiles in the longitudinal laying direction with folded overlap rib inserted, and also comprising ridge clamps which can be attached to the ridge lath for retaining the ridge tiles.

In the prior art, a multiplicity of systems of this type is known. In these systems, the ridge clamp or parts of the ridge clamp is/are normally visible after correctly laying the ridge tiles, which is visually undesirable. In addition, because of the interlocking system of the ridge tiles laid in scale-like fashion, a complicated shape of the ridge clamp is an absolute requirement.

In the overlap region, the known ridge tiles have the simplest smooth shapes and also, in some cases, complicated shapes with water courses and spoiler-like fins for improving the aerodynamic behaviour moulded in. Depending on the design of the overlap, the ridge tiles cannot be attached by simply pushing them into one of the diverse ridge clamp shapes corresponding to the prior art since the shaping of the ridge tiles substantially restricts the displaceability in the longitudinal direction.

Proceeding from this prior art, the object of the invention is to provide a system of the generic kind, in which an invisible system of ridge clamps is made possible, in which system, in addition, a simple and inexpensive-to-manufacture shaping of the ridge clamp should be achievable.

To achieve this object, the invention proposes that the ridge tile has on its bottom a longitudinal web which projects orthogonally to the laying plane and which begins at a distance from the folded overlap rib and extends over an essential part of the ridge tile length, and that the ridge clamp has a twolimb, preferably approximately U-shaped clamp jaw into which the longitudinal web of the ridge tile can be inserted in the intended assembly position the clamp jaw having barrier means which permit the insertion of the longitudinal web, but prevent the longitudinal web from being pulled out counter to the insertion direction.

In addition, it is preferable that the barrier means are formed by ends of the limbs of the U-shaped clamp, which ends are bent towards one another and point by means of their free end towards the base of the U-shaped clamp at an angle.

Contrary to the existing design of ridge tiles, in accordance with the system according to the invention a longitudinal web is formed on the bottom. The ridge clamp which serves to secure the laid ridge tile is nailed or screwed to the ridge lathing in the region in which the longitudinal web of the ridge tile extends. In this case, a multiple arrangement of such ridge clamps is also possible in the region of the longitudinal web. The laying can be performed in a simple manner in such a way that the folded overlap rib of the further ridge tile to be laid in overlapping manner is inserted into the folded overlap groove of a ridge tile already laid and the ridge tile is then presented to the ridge lath and, consequently, the ridge clamp so that the ridge clamp engages with the longitudinal web. At the same time, the ridge clamp is preferably to be arranged approximately at the centre of gravity of the ridge tile to be laid. This system has, in addition, the advantage that the laid ridge tile, which is held by the ridge clamp, is still displaceable in the longitudinal direction in order to equalize, if necessary, structural distances. The folded overlap groove, which is formed after the fashion of a hook jaw, permits such a displacement of the ridge tiles. On the basis of the system according to the invention, it is also possible to adjust the relative height of the ridge tile to be laid variably with respect to the ridge board or to the ridge lath if, for example, tiles which are laid on the infrastructure are specifically situated under the lateral edge of the ridge tile. Depending on the structural conditions, the ridge tile can be pushed by means of the longitudinal web more or less far into the clamp jaw of the ridge clamp, the location being secured in every position so that the tile cannot thereby be lifted by wind suction or the like.

An alternative achievement of the object is seen in that the ridge clamp has a first web projecting orthogonally from the ridge lath and then a second web extending at right angles to the latter and overlapping the lateral edge of the folded overlap groove of the overlapped end of a ridge tile, and that there is formed on the second web a two-limb, preferably approximately Ushaped clamp jaw into which the folded overlap rib at the end of the overlapping ridge tile can be inserted in the intended assembly position, the clamp jaw having barrier means which permit the insertion of the folded overlap rib, but prevent it from being pulled out counter to the insertion direction.

In this connection, provision is preferably made that the barrier means are formed by ends of the limbs of the U-shaped clamp which are bent towards one another and point by means of their free ends towards the base of the U-shaped clamp at an angle.

In addition it is preferred that the second web of the ridge clamp is longer, preferably twice to three times as long, than the width of the rib of the folded overlap groove seen in the longitudinal laying direction of the ridge tiles.

Furthermore, provision is preferably made that the second web of the ridge clamp is bent at the end in the direction of the base of the folded overlap groove and, adjacent thereto, forms the U-shaped clamp, a part of one limb of the clamp being a component of the bend.

According to this design, a somewhat more complicated shape of the ridge clamp is necessary since the latter has to extend by means of the clamp jaw in the region in which the folded overlap groove of the overlapped end of the already laid tile is situated and into which the folded overlap rib of the overlapping tile still to be laid is to engage. The folded overlap rib in this case itself forms a transverse web which can be inserted into the clamp jaw of the ridge clamp. At the same time, a different height position of the ridge tile to be laid is again possible if tiles of the roof cladding or the like are situated underneath the ridge tile.

In all the embodiments, provision can additionally be made that the longitudinal web of the ridge tile or the folded overlap rib of the ridge tile has a slot or similar cutout or recess for the locking reception of the barrier means or of the barrier edges of the barrier means in the intended assembly position.

Exemplary embodiments of the invention are shown in the drawing and described in greater detail below.

In the drawing: Figure 1 shows a first embodiment in side elevation seen in the central longitudinal sect ion; Figure 2 shows the same seen in section; Figure 3 shows a second embodiment in side elevation seen in the central longitudinal section; Figures 4 and 5 show ridge clamps in elevation.

All the embodiments are a system for laying ridge tiles 1, 2 on a ridge lath or a ridge board 3 of a roof. The ridge tiles 1, 2 are trough-shaped in cross section, as is evident, in particular, from Figure 2. They can be laid overlapping one another in scale-like fashion. Provided in the overlap region at the end of the overlapped ridge tile 2 is a folded overlap groove 4 and at the end of the overlapping ridge tile 1 a folded overlap rib 5 which can be inserted into the folded overlap groove 4.

Preferably, as a result of suitable dimensioning of the groove width, the folded overlap groove 4 makes possible a limited displaceability of the tiles in the longitudinal laying direction with the folded overlap rib 5 inserted.

The system furthermore comprises ridge clamps 6 which can be attached to the ridge lath or the ridge board for retaining the ridge tiles 1, 2.

In the embodiment in accordance with Figures 1 and 2, the ridge tile 1 or 2 has on its bottom side a longitudinal web 7 which projects orthogonally with respect to the laying plane and which starts at a distance from the folded overlap rib 5 and extends over a substantial part of the ridge tile length, preferably up to the beginning of the bend for forming the folded overlap groove 4. As is evident, in particular, from Figures 2 and 4, the ridge clamp 6 has a two-limb clamp jaw which is Ushaped in the exemplary embodiment and into which the longitudinal web 7 of the ridge tile 1 can be inserted in the intended assembly position. The clamp jaw has barrier means 8 which permit the insertion of the longitudinal web in accordance with drawing Figure 2 from the top downwards, but act in a barrier manner against the longitudinal web being pulled out counter to the insertion direction. In the exemplary embodiment, the barrier means 8 are formed by ends of the limbs of the Ushaped clamp which are bent towards one another and point by means of their free ends towards the base of the U-shaped clamp at an angle.

A second embodiment is illustrated in drawing Figures 3 and 5. In this case, the ridge clamp 6, which is fixed, for example nailed, to the ridge lath 3 or to the ridge board, has a first web 9 extending orthogonally from the ridge lath 3 and then a second web 11 which extends at right angles thereto and overlaps the rib 10 of the folded overlap groove 4 of the overlapped end of a ridge tile 2. On the second web 11, there is formed a twolimb clamp jaw which is U-shaped in the exemplary embodiment and which forms the actual ridge clamp 6. In the intended assembly position, the folded overlap rib 5 at the end of the overlapping ridge tile 1 can be inserted into the clamp jaw, the clamp jaw again having barrier means 8 which permit the insertion of the hook 5, but prevent the hook from being pulled out counter to the insertion direction. In this case, too, the barrier means are formed by ends of the limbs of the U-shaped clamp, which ends are bent towards one another and point by means of their free ends towards the base of the U-shaped clamp at an angle.

The second web 11 of the ridge clamp 6 is longer, for example approximately 3 times as long, than corresponds to the width of the rib 10 of the folded overlap groove seen in the longitudinal laying direction of the ridge tiles 1, 2.

The second web 11 of the ridge clamp 6 is bent at the end in the direction of the base of the folded overlap groove 4 and, adjacent thereto, the U-shaped clamp is formed on. In this case, a part of the one limb of the clamp is a component of the bend.

As is illustrated, in particular, by Figure 3, the folded overlap rib 5 of the ridge tile 1 may have a slot 12 for the locking reception of the barrier means 8 in the intended assembly position.

In both embodiments, a secure retention of the ridge tile is achieved by the ridge clamps, the ridge clamps 6 being virtually invisible.

The invention is not restricted to the exemplary embodiments, but can be varied widely within the scope of the disclosure.

All the new individual and combined features disclosed in the description and/or drawing are regarded as essential to the invention.

Claims

Claims:

1. System for laying ridge tiles on the ridge lath of a roof, comprising ridge tiles which are trough-shaped in cross section and which can be laid in scale-like fashion overlapping one another and have, in the overlap region at the end of the overlapped ridge tile a folded overlap groove and at the end of the overlapping ridge tile a folded overlap rib which can be inserted in the folded overlap groove, the folded overlap groove preferably making possible a limited displaceability of the tiles in the longitudinal direction with folded overlap rib inserted, and also comprising ridge clamps which can be attached to the ridge lath for retaining the ridge tiles, characterized in that the ridge tile (1) has on its bottom a longitudinal web (7) which projects orthogonally to the laying plane and which begins at a distance from the folded overlap rib (5) and extends over an essential part of the ridge tile length, and in that the ridge clamp (6) has a two-limb, preferably approximately U-shaped clamp jaw into which the longitudinal web (7) of the ridge tile (1) can be inserted in the intended assembly position, the clamp jaw having barrier means (8) which permit the insertion of the longitudinal web (7), but prevent the longitudinal web (7) from being pulled out counter to the insertion direction.

2. System according to Claim 1, characterized in that the barrier means (8) are formed by ends of the limbs of the U-shaped clamp, which ends are bent towards one another and point by means of their free end towards the base of the U-shaped clamp at an angle.

3. System according to the preamble of Claim 1, characterized in that the ridge clamp (6) has a first web (9) projecting orthogonally from the ridge lath (3) and then a second web (11) extending at right angles to the latter and overlapping the lateral edge (10) of the folded overlap groove (4) of the overlapped end of a ridge tile (2), and in that there is formed on the second web (11) a two-limb, preferably approximately U shaped clamp jaw into which the folded overlap rib (5) at the end of the overlapping ridge tile (1) can be inserted in the intended assembly position, the clamp jaw having barrier means (8) which permit the insertion of the folded overlap rib (5), but prevent it from being pulled out counter to the insertion direction, or in that a transverse web is formed on the bottom of the ridge tile (1, 2), and in that the ridge clamp (6) is a two-limb, preferably U-shaped clamp jaw having barrier means (8) into which the transverse web of the ridge tile can be inserted in the intended assembly position.

4. System according to Claim 3, characterized in that the barrier means (8) are formed by ends of the limbs of the U-shaped clamp which are bent towards one another and point by means of their free ends towards the base of the U-shaped clamp at an angle.

5. System according to Claim 3 or 4, characterized in that the second (11) web of the ridge clamp (6) is longer, preferably twice to three times as long, than the width of the rib (10) of the folded overlap groove (4) seen in the longitudinal laying direction of the ridge tiles.

6. System according to Claims 3 to 5, characterized in that the second web (11) of the ridge clamp (6) is bent at the end in the direction of the base of the folded overlap groove (4) and, adjacent thereto, forms the U-shaped clamp, a part of one limb of the clamp being a component of the bend.

7. System according to one of Claims 1 to 6, characterized in that the longitudinal web (7) of the ridge tile (1) or the folded overlap rib (5) of the ridge tile (1) has a slot (12) or similar cutout or recess for the locking reception of the barrier means (8) or of the barrier edges of the barrier means (8) in the intended assembly position.