GB2390620A

GB2390620A - Joint piece for adjacent ridge tiles

Info

Publication number: GB2390620A
Application number: GB0315680A
Authority: GB
Inventors: Fritz Goedel
Original assignee: Norm AMC AG
Current assignee: Norm AMC AG
Priority date: 2002-07-10
Filing date: 2003-07-04
Publication date: 2004-01-14
Anticipated expiration: 2023-07-04
Also published as: GB2390620B; GB0315680D0

Abstract

A transition piece 1 for placement in a joint location gap (2, Fig 4) between two adjacent ridge tiles (3a, 3b, Fig 4) comprises a lower component 4 and an upper component 5, the lower component having a base 6, the top side of which supports the adjacent ridge tiles and covers the joint location gap on the underside of the ridge tiles; the upper component comprising a covering element 8 which completely covers the joint location gap between the adjacent ridge tiles. A screw 19 may pass through a drilled hole 18 which extends through the upper and lower components to attach these and fix them to a ridge beam. A stop element such as a rib 9 may be provided between the base and covering elements, to define the width of the joint location gap and separate the adjacent ridge tiles. Drainage channels 13 may be provided on the base element. A centring device 14 which may comprise pegs 15 or lugs and holes 16, may be provided on each of the upper and lower components.

Description

-1 A transition piece for placement in a joint location gap between two

adjacent ridge tiles This invention relates to a transition piece for placement in a joint location gap between two adjacent ridge tiles.

The top edge of a covered roof generally consists of a row of ridge tiles. In this connection, the term "ridge tiles" means all suitable closure elements made of clay, concrete, etc. e.g. coping bricks also. There is, of course, a gap between the ridge tiles which are disposed side by side, in the region of their joint locations. This gap, through which moisture, wind, dirt, 10 pests or vermin, etc., can penetrate, is generally sealed by mortar or the like. This sealing operation is extremely costly and nevertheless does not guarantee that the joint locations remain permanently sealed. Over the course of time, leaks can occur at the joint locations due to environmental effects such as rain, hail and frost in particular. Badly mortared gaps may even leak from the outset. For this reason, transition pieces of the type in question, 15 which are also termed joint location sealing elements, are increasingly being used in order reliably to seal the roof interior space from environmental effects, particularly moisture.

A transition piece is known from GB 2 186 606 A which is of one-piece construction and which has a rib which fills the joint location gap in the longitudinal direction thereof. In 20 order to seal the gap, a covering element, which extends over the entire length of the rib and consequently over that of the joint location gap also, is provided on the rib. This covering element projects beyond the gap on both sides, so that in the installed state the covering element rests on the adjacent ridge tiles. The imperviousness at the joint location is additionally increased thereby. To facilitate installation, tabs which protrude at right angles 25 are provided in the lower region of the side of the rib. In the installed state these tabs fit round the underside of the ridge tile. Consequently, the transition piece firstly has to be placed on the ridge tile before the adjacent ridge tile can be placed on the transition piece.

Furthermore, this transition piece has a perpendicular hole through which a screw or the like can be passed in order to fix the transition piece to the ridge beam. The individual ridge tiles 30 are then fixed to the ridge beam in this manner. Additional fixing means, e.g. a perpendicular hole in the ridge tile itself for receiving a screw or the like, are not necessary. A disadvantage of this prior art is that moisture can always still enter the roof interior space under extreme

weather conditions, even though the transition piece is wider than the gap. Moreover,

À2 deformations of the material of the transition piece can occur over the course of time, e.g. due to intense solar radiation, and can likewise result in a reduction of the sealing effect.

Furthermore, the installation of a transition piece such as this is costly, since it has to be slid on to the ridge tiles. There is also a fixed distance between the top part of the transition piece 5 and the tabs provided at the bottom of the rib. Therefore, due to manufacturing tolerances, it can happen that the cross-section of the ridge tile is larger than this distance and the transition piece therefore has to be pushed on to the ridge tile using force. This can result in damage to or deformations of the transition piece, which can have a negative effect on its sealing function. It is also possible, however, for the distance between the top part and the 10 tabs to be greater than the tile crosssection, so that there is play in the slid-on transition piece and gaps are therefore formed which can also have a negative effect on the sealing function. US 4,270,330 describes a transition piece which also comprises a rib which extends 15 longitudinally through the joint location gap. On its underside, the rib is joined to an element which is of the same length but which is somewhat broader and which therefore protrudes beyond the gap. The shape of this element corresponds to that of the underside of the ridge tiles, so that it forms a support for the adjacent ridge tiles, and it has drainage channels in the longitudinal direction, i.e. in the direction of extent of the rib. If moisture penetrates 20 downwards through the gap it is led away on to the ridge tiles situated underneath via the drainage channels in the transition piece. This transition piece comprises a device with which it can be fixed to the ridge beam, and with which adjacent ridge tiles can be fixed at the same time. For this purpose, a perpendicular through-hole is provided in the transition piece by which it is fixed to the ridge beam by a screw or the like. A metal piece is inserted between 25 the screw head and the rib of the transition piece and is formed so that it can also rest on the adjacent ridge tiles. When the screw is tightened, the ridge tiles are simultaneously clamped and fixed to the ridge beam. With this transition piece also, it is possible for moisture to enter the roof interior space due to extreme weather conditions, despite the drainage channels disposed in the lower part of the transition piece. Over the course of time, these chaMels can 30 also become blocked by accumulated particles of dirt, due to which it is more difficult for penetrated moisture to be led away. Here also, deformations of the transition piece can occur if the latter is subjected to considerable heat, and the sealing effect is thereby reduced.

- 3 The object of the present invention is to provide a transition piece of the type in question by which the roof interior space can be sealed permanently and satisfactorily, even under 9 extreme weather conditions, and which ensures ease of installation.

5 The object derived and described above is essentially achieved according to the invention by 9 a transition piece which comprises a lower component and an upper component, wherein the lower component comprises a base element and the top side of the base element forms a support for the adjacent ridge tiles and in the installed state covers the joint location gap on the underside of the ridge tiles, and wherein the upper component comprises a covering 10 element and the covering element is formed so that in the installed state the joint location gap between the adjacent ridge tiles is completely covered. In this connection, the expression "completely covered', means that when the upper component has been fitted the gap is covered from above and also from the sides. For this purpose, the dimensions of the covering element must at least equal those of the gap, i.e. the length and width thereof, so as to be able a 15 to cover the latter. In order to enhance the sealing function at this location, however, the covering element should be wider than the gap, so that in the installed state a region which overlaps the adjacent ridge tiles is present on each side of the transition piece.

A dual sealing function is achieved by the solution according to the invention. Firstly, the 20 gap is covered from above and from the sides and the gap is thereby substantially closed, and secondly the lower component of the transition piece comprises a base element which forms 9 a support for the two adjacent ridge tiles and which at the same time covers the joint location gap on the underside of the tiles. In this manner, the joint location gap is closed all round by the installed transition piece. If moisture nevertheless enters the gap between the ridge tiles 25 from above or from the side, the base element disposed on the lower component prevents further penetration into the roof interior space.

Moreover, the division of the transition piece into an upper and a lower component ensures simplicity of installation. Thus the ridge tiles and the lower components of the transition 30 piece can first of all be placed alternately on the roof ridge, and the upper component can subsequently be placed thereon and can be attached to the lower component or to the ridge beam. The attachment can be made by means of a screwed joint, for example. In the course -

of this procedure, adjacent roof tiles are clamped between the upper component and the

lower component, or, more precisely, between the covering element and the base element, which increases the stability of the row of ridge tiles.

In one preferred embodiment, a stop element can be provided between the base element and 5 the covering element in order further to simplify installation. Said stop element serves as a stop for the adjacent ridge tiles during installation and thereby determines a defined width of the joint location gap, which is identical for each pair of ridge tiles. In this manner, it is ensured that if the covering element and the base element of the transition piece are wider than the stop element the joint location gap is completely covered all round, provided that the 10 two adjacent ridge tiles are seated flush against the stop element in their installed state.

The stop element can take various forms. It is particularly advantageously formed as a rib.

The stop element, e.g. the rib, is advantageously provided on the base element. In this manner, during installation the transition piece can firstly be inserted with one side of the a 15 base element under a ridge tile until the edge of this ridge tile abuts against the side of the stop. Thereafter, the next ridge tile can be placed on the other side of the base element and can be pushed on to the other side of the stop element. Apart from determining the width of the joint location gap, the form of the stop element as a rib has numerous advantages. Firstly, a rib such as this, which can also of course be provided on the covering element of the upper 20 component, increases the stability of the individual components and of the assembled transition piece. Secondly, a rib such as this completely fills the gap between two adjacent ridge tiles, which additionally increases the imperviousness of a joint location such as this.

For the optimum sealing effect, the shape of the underside of the covering element should 25 advantageously correspond to the shape of the top side of the ridge tiles. In this manner, it is ensured that the covering element is seated flush against the two adjacent ridge tiles over the entire length of the joint location gap. Moreover, installation is made easier due to the corresponding shapes. Accordingly, it is also advantageous if the shape of the top side of the base element corresponds to the shape of the underside of the ridge tiles.

As mentioned above, the joint location gap should be completely covered by the covering element, i.e. covered laterally also, when installation of the transition piece is complete. In one particular embodiment, lateral coverage of the joint location gap is effected by providing

- s - the covering element with downwardly bent end pieces. These end pieces, which therefore l constitute an extension of the covering element, then also cover the lateral gap at the joint location which is due to the ridge tiles having a defined thickness and consequently having a side edge also. Thus there is also a gap in the region in which the side faces of the ridge tiles 5 abut each other.

The aforementioned end pieces may have various forms. Thus it is possible, for example, for the end pieces to have an inner face which extends in a straight line and for the end pieces therefore to form a flat surface there. In this situation, it is firstly conceivable for the upper 10 component to be formed so that the inner faces of the end pieces extend parallel to the side faces of the adjacent ridge tiles. The angle between the respective end piece and the remaining part of the covering element thus corresponds to the angle between the surface and the side face of the ridge tiles.

15 In one advantageous embodiment, this angle can also be somewhat smaller, so that the end pieces point inwards somewhat. When they are installed, the inner faces of the end pieces then extend at an acute angle towards the side faces of the ridge tiles. The upper component can be designed so that the lower edges of the end pieces are seated under pressure against the side faces of the adjacent ridge tiles. In a design such as this, the upper component can be 20 clamped to the adjacent ridge tiles in the joint location regions. It is then already fixed before a screwed joint is made, and cannot suddenly be blown away, by a gust of wind for example.

Moreover, the sealing effect of the end pieces in the side regions of the ridge tiles is thereby increased. In order to achieve the aforementioned effects, instead of straight end pieces which are bent inwards somewhat, end pieces can also be used, the inner faces of which are 25 curved inwards. In this manner also, it can be ensured that the outer edge is seated under l pressure against the side faces of the ridge tiles.

Since ridge tiles have a defined thickness, it is also advantageous to cover the gaps on the undersides of the side edges of adjacent ridge tiles, even if these gaps are very short. In one 30 particular embodiment, this is effected by the base element having end pieces similar to those described above for the covering element. These end pieces are bent upwards, however, i.e.; they correspond to the shape of the underside of the lowermost end of the ridge tiles. In this

' -6 manner, the joint location gap is again completely covered. Neither water splashes nor pests or vermin can thereby enter the roof interior space.

In a further advantageous embodiment, drainage channels are provided on the top side of the 5 base element. Moisture which despite the other sealing means has reached the underside of the tiles through the joint location gap can be led away to the outside of the roof via these drainage channels. The roof interior space is thereby provided with additional protection from moisture.

10 In a further embodiment, in order to simplify installation a centring device can be provided which makes it possible to join the lower component to the upper component more easily.

For example, the centring device may consist of a centring peg or of a plurality of centring pegs in one of the components, and of corresponding centring holes in the other component It is possible, for example, for two downwardly pointing centring pegs to be disposed in the 15 upper component and for the lower component to have centring holes at the corresponding location for receiving said pegs. The centring peg or centring pegs can also be provided in the lower component or in both components, however. The advantage of a centring device such as this is that when they have been placed on each other the two components cannot move or twist during further fixing operations, e.g. during screwing operations, but are 20 already disposed one above the other in the final state which is desired. In order to ensure ease of assembly of the two components, the centring pegs are formed so that they taper towards their tips.

Instead of centring pegs and corresponding holes, other interlocking elements which ensure a 25 centring effect can also be used. For example, instead of a centring peg it is possible to use a centring lug which in the installed state fits into a corresponding aperture. It is also possible, however, to provide a single tongue-shaped projection which is ideally disposed on the underside of the covering element over the entire length thereof, particularly on the underside of the stop element, and which in the installed state fits into a corresponding centring groove 30 which accordingly extends over the entire length of the base element or of a stop element provided there. It is particularly advantageous if the centring elements described above, i.e. the centring peg, centring lug or centring tongue, and the corresponding receivers are produced in one piece with the component on which they are disposed. Due to a one-piece

design such as this, the two components which together form the transition piece can be produced by machine in a simple manner.

In a further embodiment, the lower and/or the upper component can comprise a means for 5 fixing to the ridge beam. The fixing means preferably consists of a drilled hole through which a screw or the like can be inserted, and it does not matter on which of the components it is provided, since in the installed state the two components are fixedly attached to each other by an attachment device anyway. By means of a device such as this for fixing to the ridge beam, the adjacent ridge tiles, which are clamped between the lower and the upper 10 components, are fixed to the roof. In this situation, an additional fixing means for fixing the ridge tiles to the ridge beam, e.g. a perpendicular hole in the tile itself, is not necessary.

Finally, in order further to improve the sealing effect, a sealing strip can be provided on the underside of the covering element and/or on the top side of the base element.

In particular, the transition piece described in detail above can be used for fixing or securing ridge tiles to the ridge beam. The fixing means which is still widely used in the state of the art, and which comprises a perpendicular hole through the ridge tile itself in combination with a corresponding screw or the like, can thereby be dispensed with.

Furthermore, the transition piece described above also performs the function of a sealing element, and can consequently be used for sealing a joint location gap between two adjacent ridge tiles.

25 Various examples of embodiments of the present invention are described below with reference to the drawings, where: Figure 1 is a perspective view of a first embodiment of the transition piece according to the invention; Figure 2 is a cross-section through the transition piece shown in Figure 1 along section line 11-11 in Figure 3;

- 8 Figure 3 is a longitudinal section through the transition piece shown in Figure I along section line III - III in Figure 2; Figure 4 is a perspective view of the transition piece of Figure I in its installed state; s Figure S is a perspective view of a first alternative embodiment of the lower component shown in Figure 1; Figure 6 is a perspective view of a further embodiment of the transition piece shown in 10 Figure 1; and Figure 7 is a perspective view of yet another embodiment of the transition piece shown in Figure 1.

15 The Figures illustrate a transition piece 1 which is intended for placement in a joint location gap 2 between two adjacent ridge tiles 3a and 3b. The transition piece 1 consists of a lower component 4 and an upper component 5 which can be attached to each other via an attachment device 7. In this embodiment, the attachment device 7 is identical to a means 20 for fixing to the ridge beam 17. It consists of a drilled hole 18 which extends perpendicularly 20 both through the upper component 5 and through the lower component 4. A screw 19 is inserted through the drilled hole 18, and after the two components 4 and 5 have been assembled it is screwed into the ridge beam 17. In the present case, the transition piece 1 is thereby fixed to the ridge beam 17 and at the same time the lower component 4 is attached to the upper component 5. In another embodiment, however, it is also possible for the transition 25 piece 12 to comprise an attachment device 7 for attaching the two components 4 and 5 which is separate from the fixing device 20.

The lower component 4 which is illustrated comprises a base element 6 which has a cross section in the form of a portion of a circle and on which a rib-like stop element 9 is provided.

30 In this particular embodiment, the rib-like stop element 9 comprises three projections, the respective side faces of which are seated flush against the respective sides of the two adjacent ridge tiles 3a and 3b in the installed state. It is also possible, however for a rib without projections to be provided as the stop element 9, or for no rib to be provided at all. In

-9 - the embodiment exemplified, the shape of a portion of a circle has been selected for the base element 6, since the ridge tiles 3a and 3b which are used here have a corresponding underside and in this manner the base element 6 is seated completely against the undersides of the ridge tiles 3a and 3b, whereby an improved sealing effect is achieved. If different ridge S tiles are used, the base element 6 can also of course be shaped differently. Longitudinally extending drainage channels 13 can be seen on the upper side of the base element 6. If moisture enters through the joint location gap 2, it can be led away via the drainage channels 13. 10 The shape of the upper component S also corresponds to that of the ridge tiles 3a and 3b which are used. Other shapes are possible here also. The upper component 5 comprises a covering element 8 and also comprises a rib-like stop element 9 which is disposed thereon and the shape of which corresponds to that of the rib disposed on the lower component 4. In this manner, the joint location gap 2 is substantially completely filled in the installed state by 15 the rib or stop element 9. It is also possible for the rib-like stop element 9 to be provided on one of the two components 4 and 5 only.

Downwardly bent end pieces 10 are disposed on the covering element 8 and serve to cover the lateral joint location gap 2 between the adjacent ridge tiles 3a and 3b. The covering 20 element 8 with its end pieces 10 is formed so that in the installed state the straight inner faces of the end pieces 10 are parallel to the side faces 11 of the ridge tiles 3a and 3b. In other embodiments, these end pieces can also be inclined inwards, i.e. towards the side faces 11 of the ridge tiles 3a and 3b. The outer edges 12 of the end pieces 10 are then seated under pressure against the side faces 11 of the ridge tiles 3a and 3b. The upper component 5 is 25 thereby already fixed to the ridge tiles 3a and 3b before it is finally fixed to the ridge beam by means of the screw 19. Thus the upper component 5 cannot blow away in a gust of wind if it has already been fitted but is not yet fixed by the screw 19 to the ridge beam 17.

Figure I also shows a centring device 14 by means of which the upper component S can be 30 placed on the lower component 4 in a simple manner during installation. The centring device 14 comprises two cenking pegs 15 which are fixedly attached to the upper, rib-like stop element 9 and which protrude downwards therefrom. At a corresponding location, the rib-

like stop element 9 which is disposed on the base element 6 comprises centring holes 16

l - lo -

which serve to receive the two centring pegs 15. When the lower component 4 and the upper component S are assembled, the two components 4 and 5 always remain in the desired alignment when they are screwed to the ridge beam. Therefore, they cannot tilt or twist in relation to each other.

s Finally, a sealing strip 21 can also be seen, which in the present embodiment is disposed solely on the underside of the covering element 8. In the final installed state, the sealing strip 21 enhances the sealing effect at this location. A sealing strip 21 can also, of course, be provided on the upper side of the base element 6.

Figure 2 is a cross-section through the transition piece 1 of Figure 1 along the section line II -

II illustrated in Figure 3. The lower component 4 which is formed from the base element 6 and the rib-like stop element 9, as well as the upper component 5 which is formed from the covering element 8 and the rib-like stop element 9, are illustrated in particular. The IS longitudinally extending drainage channels 13 which are provided on the base element 6, and the sealing strip 21 which is adhesively bonded to the inner face of the covering element 8, can clearly be seen in this sectional drawing.

Figure 3 is a longitudinal section through the transition piece shown in Figure 1 along the 20 section line III - III of Figure 2. The principle of the centring device 14 can clearly be seen from Figure 3. In the installed state, in which the lower component 4 is attached to the upper component 5, the two centring pegs 15 are received by the two corresponding centring holes 16. During installation, the screw 19 is inserted through the drilled hole 18 and is screwed into the ridge beam 17. The adjacent ridge tiles 3a and 3b are thereby clamped and fixed 25 between the lower component 4 and the upper component 5, or more precisely between the base element 6 and the covering element 8. When this design is employed, additional fixing means, such as a hole in the ridge tile itself for receiving a screw, are not necessary.

Figure 4 is a perspective view of the two adjacent ridge tiles 3a and 3b in the installed state, 30 and also shows - as dash-dot lines - the transition piece l disposed therebetween. It can clearly be seen that in this embodiment the joint location gap 2 is closed from above and laterally by the covering element 8 of the upper component 5. The base element 6 of the

- 11 lower component 4 also projects beyond the joint location gap 2. In this manner, the roof interior space is sealed in the optimum manner from moisture in particular.

Figure 5 is a perspective illustration of an alternative embodiment of the base element 6 of 5 Figure 1. At its outer ends, the base element 6 has end pieces 26 which perform a similar function to the end pieces l O which are disposed on the covering element 8 illustrated in Figure 1. The end pieces 26 are bent laterally or upwards corresponding to the shape of the ridge tiles, particularly to the shape of the ridge tile ends. In this manner, when installation is complete the transition pieces 1 completely enclose the joint location gap 2 by means of the 10 covering element 8, the end pieces 10 and the end pieces 26, and therefore enclose the gap on the underside of the ridge tile ends - even if this gap is very short. The roof interior space is thus protected in the optimum manner from the ingress of water, water splashes and pests or 5 vermin. 15 Figure 6 and 7 show alternatives to the centring device 14 comprising centring pegs 15 and corresponding centring holes 16 which is illustrated in Figure 1. Figure 6 shows a covering element 8, on the underside of which a stop element 9 is disposed which is produced in one piece therewith and which comprises two downwardly pointing centring lugs 22. At a location corresponding to the centring lugs 22, the base element 6 has elongated apertures 23 20 into which the centring lugs 22 fit when the upper component S and lower component 4 are in their assembled state. In this manner, the upper component S and the lower component 4 are fixed and cannot move or twist during further fixing operations, e.g. during screwing operations. Figure 7 illustrates another alternative to the centring devices explained above. A tongue-like centric projection 24 is disposed here on the underside of the covering element 25 8, or more precisely on the underside of the stop element 9. At a corresponding location, the base element 6 has a corresponding receiver in the form of an elongated centring groove 25.

Claims

- 12 Claims

1. A transition piece (1) for placement in a joint location gap (2) between two adjacent ridge tiles (3a, 3b), comprising a lower component (4) and an upper component (S), wherein 5 the lower component comprises a base element (6) and the top side of the base element (6) forms a support for the adjacent ridge tiles (3a, 3b) and in the installed state covers the joint location gap (2) on the underside of the ridge tiles (3a, 3b), and wherein the upper component (5) comprises a covering element (8) and the covering element (8) is formed so that in the installed state the joint location gap (2) between the adjacent ridge tiles (3a, 3b) is l O completely covered.

2. A transition piece according to claim 1, characterized in that a stop element (9) is provided between the base element (6) and the covering element (8), and that the sides of the stop element (9) form a stop for the adjacent ridge tiles (3a, 3b) and the stop element (9) 15 thereby defines the width of the joint location gap.

3. A transition piece according to claim 2, characterized in that the stop element (9) is a rib. 20

4. A transition piece according to claim 2 or 3, characterized in that the stop element (9) is provided on the base element.

5. A transition piece according to any one of claims I to 4, characterized in that the shape of the underside of the covering element (8) corresponds to the shape of the top side of 25 the ridge tiles (3a, 3b).

6. A transition piece according to any one of claims I to 5, characterized in that the shape of the top side of the base element (6) corresponds to the shape of the underside of the ridge tiles (3a, 3b).

7. A transition piece according to any one of claims I to 6, characterized in that the covering element (8) has downwardly bent end pieces (10).

- 13

8. A transition piece according to claim 7, characterised in that the inner faces of the end pieces (10) extend in a straight line.;

9. A transition piece according to claim 8, characterised in that the inner faces of the 5 end pieces (10) extend parallel to the side faces (1 1) of the ridge tiles (3a, 3b).

10. A transition piece according to claim 8, characterised in that the inner faces of the end pieces (10) extend at an acute angle to the side faces (11) of the ridge tiles (3a, 3b).

10

11. A transition piece according to claim 7, characterised in that the inner faces of the; end pieces (10) are curved inwards.

12. A transition piece according to claim 10 or 11, characterised in that the outer edges (12) of the end pieces (10) can be seated under pressure against the side faces (11) of the 15 ridge tiles (3a, 3b).

13. A transition piece according to any one of claims 1 to 12, characterised in that; drainage channels (13) are provided on the top side of the base element (6).

20

14. A transition piece according to any one of claims I to 13, characterised in that the lower component (4) and the upper component (5) comprise a common centring device (14).

15. A transition piece according to claim 14, characterised in that the common centring device (14) consists of al least one centring peg, preferably of two centring pegs (IS), in one 25 of the components (4, S), and of at least one centring hole, preferably of two centring holes ( 16), in the other component (5, 4). i

16. A transition piece according to claim 15, characterised in that the centring pegs (IS) taper towards their tips.

17. A transition piece according to claim 14, characterised in that the common centring device (14) consists of at least one centring lug, preferably of two centring lugs (22), in one

t - 14 of the components (4, 5), and of at least one centring aperture, preferably of two centring apertures (23), in the other component (5, 4).

18. A transition piece according to claim 14, characterized in that the common centring 5 device (14) consists of a tongue-like centring projection (24) in one of the components (4, 5) and of a centring groove (25) in the other component (5, 4).

19. A transition piece according to any one of claims 14 to 18, characterized in that the elements of the centring device (14) are produced in one piece with the lower component (4) 10 or the upper component (5), particularly in one piece with the stop element (9).

20. A transition piece according to any one of claims I to 19, characterized in that the base element (6) comprises laterally or upwardly bent end pieces (26).

15

21. A transition piece according to any one of claims 1 to 20, characterized in that the lower component (4) and/or the upper component (5) comprise a means (20) for fixing to the ridge beam (17), preferably a drilled hole (18) through which a screw (19) or the like can be inserted. 20

22. A transition piece according to any one of claims I to 21, characterized in that a sealing strip (21) is provided on the underside of the covering element (8) and/or on the top side of the base element (6) .

23. Use of a transition piece according to any one of claims I to 22 for fixing ridge tiles 25 (3a, 3b) to a ridge beam (17).

24. Use of a transition piece according to any one of claims I to 22 for sealing a joint location gap (2) between two adjacent ridge tiles (3a, 3b) .