EP0320343B1 - Covering element, particularly a ridge covering, with elastic sealing strips - Google Patents

Description

The present invention relates generally to closers.

It relates more particularly, but not exclusively, to ridge closers.

As we know, the voids inevitably exist, at the top of a roof, between the ridge tiles crowning the ridge purlin of its frame and the upper row of tiles of both of the crawlers of its cover, because of the relief that these present for their recovery, must be closed.

In the absence of such a shutter, rain, snow, or any foreign body, such as leaves for example, could inadvertently penetrate, under the effects of the wind, into the underlying roof spaces, and it could be the same for any animals, such as for example birds.

The present invention relates more particularly, on this subject, the case where, as described for example in document DE-A-3533822, it is implemented, for this closure, ridge closers, which, usually made of material synthetic, are intended to be installed under the ridge tiles, overlapping each other, like these, at their ends, along the corresponding ridge purlin.

Overall, such a ridge shutter comprises, along at least one of the sides of a sole, or median strip, by which it is intended to extend along the ridge purlin of the roof to be fitted, and , in practice, along one and the other of the sides of this sole, a generally inclined section, by which it is intended to at least partially overlap the upper row of tiles or other covering elements of the corresponding rampant of the covering of this roof, with, projecting from the lower surface of this inclined panel, for its application against said covering elements, a strip elastically deformable seal capable of matching at least approximately the relief thereof.

Most often, this sealing strip is made of synthetic foam.

This is for example polyurethane foam.

Anyway, to date it extends longitudinally in a more or less massive manner, without discontinuity, from one end to the other of the inclined face which it equips.

Applied to the underlying cover elements, it is the subject of an accentuated crushing at the right of the raised parts of these, while normally filling transversely their hollow parts.

From experience, however, it turns out that, in line with these hollow parts, the desired seal is not quite as satisfactory as it would be desirable.

On the contrary, it is not uncommon to observe, in line with these hollow parts, a tendency for the sealing strip to roll up, thus forming a lip which, deviating from these hollow parts , leaves between it and them, a vacuum detrimental to the desired seal.

This is all the more so as usual, and probably to promote elasticity, the sealing strip thus used has, in cross section, a triangular outline, and that it is therefore by a refined edge in point, entirely favorable to a curling in lip, that it is supposed to apply to sealing to the underlying cover elements.

We can think that this upturn in lip of the sealing strip is due to the elongation stress of which it is longitudinally the object in line with a hollow part of such a covering element, on both sides. of the median zone thereof, due to its crushing at the level of the raised parts framing this hollow part.

The present invention generally relates to a provision suitable for enabling such a sealing strip to effectively ensure, despite this, all the sealing which is expected thereof.

More specifically, it relates to a closure member, in particular a ridge closure member, of the type comprising, projecting from its lower surface, for its application against an underlying element, an elastically deformable strip suitable for marrying at least approximately the relief thereof, this shutter being characterized in that, over at least part of its height, said sealing strip is divided, longitudinally, into tongues, which, successively, overlap at least partly one the other transversely.

Thanks to such an arrangement, this sealing strip can somehow open, like a fan, in line with the hollow parts of the underlying element, without, however, transversely, the sealing that it provides is in default, the tabs which constitute it in fact continuing to successively overlap one another.

Thanks to such an opening capacity, the sealing strip of the shutter according to the invention is advantageously removed from the effects of the elongation stress of which it can be the object longitudinally in line with any hollow part of the 'underlying element, which eliminates any risk of seeing it curl up in lip at such a place.

Thus, in the case of a ridge closure, this sealing strip is advantageously able to apply correctly to the underlying covering elements, at any point thereof, for the benefit of the desired sealing.

According to a particular embodiment, the tabs constituting this sealing strip successively fit into each other by a rebate, and this rebate is symmetrical.

It appears, in fact, that the overall symmetry resulting from this arrangement is likely to favor regular crushing of these tongues, for the benefit of the desired tightness.

However, as a variant, the tabs constituting the sealing strip of the closure according to the invention are successively connected to each other in accordion.

There is thus advantageously a continuity, from one of these tabs to the other, guaranteeing the desired tightness.

In all cases, the sealing strip of the closure according to the invention preferably has, in cross section, a trapezoid outline or a rectangle outline.

It turns out that the still substantial thickness which it thus presents along its free edge is also likely to favor, for the benefit of the desired seal, regular crushing of its tongues.

• la figure 1 est une vue en perspective d'un closoir suivant l'invention;
• les figures 2 et 3 en sont des vues partielles en coupe transversale, suivant respectivement les lignes II-II et III-III de la figure 1;
• la figure 4 en est une vue partielle en coupe longitudinale, suivant la ligne IV-IV de la figure 1;
• la figure 5 en est, à échelle différente, une vue partielle en élévation, suivant la flèche V de la figure 1;
• la figure 6 est une vue partielle, en plan, vue de dessous, suivant la flèche VI de la figure 5, d'une des bandes d'étanchéité équipant ce closoir, pour la configuration de repos de cette bande d'étanchéité;
• la figure 7 est une vue en coupe transversale du closoir suivant l'invention, représenté en place sur une toiture;
• la figure 8 est, suivant la flèche VIII de la figure 7, une vue partielle en élévation de ce closoir ainsi représenté en place;
• la figure 9 est une vue partielle en plan analogue à la figure 6, pour la configuration de service de la bande d'étanchéité concernée lorsque le closoir suivant l'invention est ainsi en place sur une toiture;
• les figures 10, 11, 12, 13 et 14 sont des vues partielles en plan qui, analogues à celle de la figure 6, se rapportent, chacune respectivement, à diverses variantes de réalisation de cette bande d'étanchéité;
• la figure 15 est une vue en perspective analogue à celle de la figure 1, pour une variante de réalisation du closoir suivant l'invention;
• la figure 16 en est une vue partielle en élévation, suivant la flèche XVI de la figure 15;
• la figure 17 en est une vue partielle de dessous, suivant la flèche XVII de la figure 16;
• les figures 18, 19 sont des vues partielles analogues, chacune respectivement, aux figures 16, 17, lorsque le closoir concerné est supposé en place sur une toiture;
• la figure 20 est une vue partielle en coupe transversale, suivant la ligne XX-XX de la figure 15;
• la figure 21 est une vue partielle en coupe longitudinale, suivant la ligne XXI-XXI de la figure 20;
• la figure 22 est une vue partielle en coupe longitudinale analogue à celle de la figure 21, pour une variante de réalisation.

The characteristics and advantages of the invention will become apparent from the description which follows, by way of example, with reference to the appended schematic drawings in which:

• Figure 1 is a perspective view of a closure according to the invention;
• Figures 2 and 3 are partial views in cross section, respectively on the lines II-II and III-III of Figure 1;
• Figure 4 is a partial view in longitudinal section along the line IV-IV of Figure 1;
• Figure 5 is, on a different scale, a partial elevational view, along arrow V of Figure 1;
• Figure 6 is a partial plan view, seen from below, according to arrow VI of Figure 5, one of the sealing strips fitted to this closure, for the rest configuration of this sealing strip;
• Figure 7 is a cross-sectional view of the closure according to the invention, shown in place on a roof;
• Figure 8 is, according to arrow VIII of Figure 7, a partial elevational view of the shutter thus shown in place;
• Figure 9 is a partial plan view similar to Figure 6, for the service configuration of the sealing strip concerned when the shutter according to the invention is thus in place on a roof;
• Figures 10, 11, 12, 13 and 14 are partial plan views which, similar to that of Figure 6, relate, each respectively, to various alternative embodiments of this sealing strip;
• Figure 15 is a perspective view similar to that of Figure 1, for an alternative embodiment of the closure according to the invention;
• Figure 16 is a partial elevational view, along arrow XVI of Figure 15;
• Figure 17 is a partial view from below, along arrow XVII of Figure 16;
• Figures 18, 19 are partial views similar, each respectively, to Figures 16, 17, when the concerned clasp is assumed to be in place on a roof;
• Figure 20 is a partial cross-sectional view along line XX-XX of Figure 15;
• Figure 21 is a partial view in longitudinal section, along the line XXI-XXI of Figure 20;
• Figure 22 is a partial view in longitudinal section similar to that of Figure 21, for an alternative embodiment.

These figures illustrate, by way of example, the application of the invention to a ridge closure 10.

As is known, such a ridge shutter 10 is intended to be disposed, at the ridge of a roof, under the ridge tiles 11 of the cover that this roof comprises, between, on the one hand, these ridge tiles 11 and, on the other hand, the ridge fault 12 of the corresponding frame and the upper row of cover elements 13 of each of the ramps of this cover.

In the embodiment shown, these cover elements 13 are, for example, corrugated tiles, that is to say tiles having alternately, parallel to the line of slope of the corresponding ramp, parts recessed 14 and raised portions 15.

But it goes without saying that these cover elements 13 may have a completely different relief.

Overall, the ridge closure 10 according to the invention is of the type comprising, along at least one of the sides of a sole 17, or median strip, by which it is intended to be disposed along the ridge purlin 12, overlapping it, a generally inclined face 18, by which it is intended to at least partially overlap, as shown, the upper row of cover elements 13 of the corresponding ramp of the cover concerned.

In practice, in the embodiment shown, there are thus, each arranged respectively on either side of the sole 17, in one piece with the latter, and symmetrically with respect to it, two inclined sides 18, one per crawling of the cover concerned.

In the embodiment shown, each of these inclined faces 18 forms a dihedral whose concavity is turned upwards.

It comprises, successively, from the sole 17 a first panel 20, by which it is connected, obliquely, by an edge 21, with this sole 17, and, beyond an edge 22 parallel to the previous one, a second panel 23, which is connected obliquely to the previous one, but with a lower slope than that of the latter, and by which it is intended to cooperate in sealing, according to methods described in more detail subsequently, with the underlying cover elements 13.

In the embodiment shown, the sole 17 of the ridge cap 10 according to the invention has, from place to place, along each of its edges, in the immediate vicinity of the corresponding edge 21 of the ventilation openings.

In practice, in this embodiment, two types of ventilation opening are thus provided.

There are, on the one hand, grouped by three, relatively small openings 25A, and, on the other hand, alternately with these relatively small openings 25A, and in isolation, relatively large openings 25B.

All these openings 25A, 25B, which are generally quadrangular, have, transversely, that is to say perpendicular to the direction of elongation of the sole 17 which they affect, the same width.

But, perpendicular to this direction of elongation, they have different lengths, smaller for the openings 25A, and larger for the openings 25B.

It goes without saying that, as a variant, these openings 25A, 25B may be identical to one another.

Anyway, affecting the sole 17, in practice flush with it, these openings 25A, 25B are all directed upwards.

In the embodiment shown, the sole 17 of the ridge cap 10 according to the invention has, in addition, from place to place, projecting from its upper surface, in order to avoid possibly too marked engagement of the ridge tiles 11, and thus spare the efficiency of the openings 25A, 25B, the bosses 27.

In practice, these are closed bosses.

More specifically, in the embodiment shown, these are solid tabs, which extend transversely to the direction of elongation of the sole 17, between openings 25A, 25B, and which, in elevation, have a trapezoidal outline.

Anyway, and as will be noted, these bosses 27 only affect the sole sole 17, without extending over the inclined faces 18.

They therefore do not affect the possibility for the latter to accentuate their obliquity with respect to the sole 17, to the benefit of the adaptability of the assembly to different slopes for the crawlers of the cover concerned.

In the embodiment shown, the sole 17 has, finally, from place to place, projecting from its lower surface, bosses 28, which are in the form of ribs of triangular outline, extending transversely from side and on the other of the corresponding edges 21, and which thus connect this sole 17 to the inclined faces 18 adjacent, and, more precisely, to the panel 20, the closest to them.

In the embodiment shown, there are thus, from place to place, several bosses 28 at the rate of one at the right of each of the bosses 27.

As is easy to understand, in addition to a stiffening function, the ribs formed by these bosses 28 make it possible to prevent the ridge fault 12 encroaching on the openings 25A, 25B, which, in practice, requires an appropriate choice. between the widths to be observed for this ridge purlin 12 and the ridge closers 10 to be superposed on it.

In the embodiment shown, each of the inclined faces 18 of the ridge cap 10 according to the invention has, itself, from place to place, projecting from the upper surface of its panel 23 furthest from the sole 17, along the free edge of this panel 23, bosses 29.

As before, these are closed bosses.

But, instead of being massive, as before, these bosses 29 are hollow.

In practice, they are open downwards, opening onto the lower surface of the inclined face 18 which they affect.

In the embodiment shown, the panel 23 of the inclined faces 18 of the ridge cap 10 according to the invention further comprises, projecting on its upper surface, between the bosses 29 above, pins 30, which, established on two rows, parallel to the direction of elongation of the sole 17, are arranged alternately from one of these rows to the other.

These pins 30 have a height less than that of the bosses 29, and, as previously, the purpose of the latter is to provide possible support for the ridge tiles 11.

Each of the inclined faces 18 of the ridge closure 10 according to the invention has, finally, projecting on its lower surface, for its application against the underlying covering elements 13, an elastically deformable sealing strip 32 suitable for fitting to the less approximately the relief of these covering elements 13.

In practice, this sealing strip 32 extends longitudinally along the edge of the panel 23 of such an inclined face 18 furthest from the sole 17, in contact with a flange 33, which, directed downwards, projecting from the lower surface of this panel 22, materializes the corresponding edge thereof.

According to the invention, and over a part H1 at least of its height H, this sealing strip 32 is split, longitudinally, into tongues 34, which, successively, overlap at least partially one another transversely.

These tongues 34 can be qualified as distinct insofar as they are tongues which do not merge with one another, or, in other words, tongues which it is possible to distinguish from each other.

In the embodiments shown, in FIGS. 1 to 10, these tongues 34 extend in height only over a part H1 of the height H of the sealing strip 32 which they affect, this sealing strip 32 remaining massive on the remaining part H2 of its height H, and they successively fit into each other by a rebate 35.

In the embodiment more particularly shown in FIGS. 1 to 9, the rebate 35 along which two successive tongues 34 thus fit together of a sealing strip 32 is a dihedral rebate.

In other words, each of these tongues 34 forms, over its entire height, projecting, at one of its ends, a rib 36 with oblique sides 37 having opposite directions of obliquity from one another being derived of a common edge 38, and, hollow, at its other end, a groove 39 complementary to the previous rib 36.

In practice, in the embodiment shown, the corresponding rebate 35 is symmetrical, the oblique flanks 37 of the rib 36, as well as those, corresponding, of the groove 39, extending symmetrically with respect to the other on either side of the median longitudinal plane of the assembly.

In the embodiment shown, each of the sealing strips 32 thus split, longitudinally, into tongues 34, has, generally, in cross section, a trapezoid outline, or better, fits into such a outline, being joined by the large base of this contour with the inclined face 18 which it equips, while the small base forms the free edge, and the rebates 35 separating one from the other its tongues 34 extend substantially perpendicularly to the latter .

Usually, such a sealing strip 32 can be made of synthetic foam, and for example of polyurethane foam.

The rebates 35 delimiting its tongues 34 can for example be made by slicing.

But the assembly can also come directly from molding.

In service, and as illustrated in FIG. 7, the ridge closure 10 according to the invention is applied, by its sole 17, to the upper surface of the ridge purlin 12 to be fitted, by being overlapped, to one from its ends, by the ridge cap 10 immediately upstream along this ridge purlin 12, and overlapping, at the other of its ends, the one which is immediately downstream, and for example being fixed to the ridge purlin 12 by the same fixing means, in practice of the points, corollarily subjecting thereto the hook 45 proper to the retention of the ridge tile 11 subsequently placed above it.

As a corollary, the inclined faces 18 of this ridge closure 10 are applied, by their sealing strips 32, against the underlying cover elements 13.

In line with the raised portions 15 of these covering elements 13, these sealing strips 32 are very strongly crushed, as shown in FIGS. 7 and 8.

Under the elongation stress which is therefore the object, in opposite directions, according to the arrows F of FIG. 8, such a sealing strip 32, in line with a hollow part 14 of such a covering element 13, the tongues 34 deviate a little, as a fan, from each other, as shown in this FIG. 8 and in FIG. 9.

In these figures 8 and 9, the corresponding spacing has been deliberately exaggerated, to be more visible.

Anyway, due to their overlap, the tongues 34 maintain, transversely, despite their spacing, all the desired tightness.

In addition, subtracted, by the caesura which constitute the rebates 35 which delimit them, from the effects of the previous elongation stress, they are applied, at full thickness, against the underlying covering elements 13, without the less tendency to any roll-up from them.

In the variant embodiment illustrated in FIG. 10, the rebate 35 along which two successive tongues 34 of a sealing strip 32 fit together is still a symmetrical rebate, but it is a tenon rebate 35 ′ and mortise 35˝ complementary.

In the alternative embodiment illustrated in FIG. 11, the rebate 35 along which two successive tongues 34 of a sealing strip 32 fit together is a rebate with end flanks 37 ′ longitudinally offset one relative to the 'other.

In the embodiment shown, these end flanks 37 ′ are generally straight, extending substantially perpendicular to the median longitudinal plane of the assembly, and the median portion 40 of the corresponding rebate 35 extends itself along this plan.

It follows from such a rebate that, seen in plan, from below, FIG. 11, each tongue 34 of the sealing strip 32 concerned has a generally Z-shaped contour, such a tongue 34 having, projecting, at each of its ends, and over its entire height, a rod 41, on a first side of the mean longitudinal plane of the assembly for one of its ends, and on the side of this plane opposite to the previous for the other of these .

In the embodiment illustrated in FIG. 12, the tongues 34 constituting a sealing strip 32 simply overlap one another successively.

In practice, for their overlap, these tongues 34 are delimited by flanks 37˝ which, oblique with respect to the median longitudinal plane of the assembly, extend rectilinear from one side to the other of this plan.

In other words, in this embodiment, the tongues 34 have, in plan, seen from below, a parallelogram contour.

They have, longitudinally, a length greater than the thickness which they present transversely.

In the embodiment shown in FIG. 13, each of the sealing strips 32 is divided, longitudinally, into two half-strips 32-I, 32-II, each of which is divided into separate tongues 34, with, of a half-bands 32-I, 32-II to each other, a longitudinal offset of said tabs 34 relative to each other.

In the embodiment shown in FIG. 14, which is similar to the embodiment shown in FIG. 12, the tongues 34 have, longitudinally, a thickness less than the width which they present transversely, in the manner of lamellae. stacked obliquely with each other.

In the embodiment shown, each of these tongues 34 has, in plan, seen from below, a generally quadrangular contour.

Instead of being made of synthetic foam, the corresponding sealing strip 32 can, if desired, be made of solid synthetic material.

Anyway, the mode of intervention of these alternative embodiments is of the same type as that previously described.

In the alternative embodiment shown in Figures 15 to 22, the tongues 34 are successively connected to each other in accordion, that is to say in zigzag.

In practice, they are thus successively connected to each other in an accordion along their opposite longitudinal edges, each of them having one of its longitudinal edges in continuity with that of the tongue which precedes it, and the another in continuity with that of the tongue which follows it.

In practice, also, each tongue 34 has its transverse edges delimited by slots 50, with contiguous lips, which, transversely affecting the sealing strip 32, extend alternately from one and the other of the edges. longitudinal of the latter over a width L1 which is only a fraction, of the order for example of two thirds, of the total width L of this sealing strip 32.

In the embodiment shown, these slots 50, which result for example from a simple slicing of the sealing strip 32 over the height H1 thereof, are planar.

The transverse edges of the tongues 34 which they delimit are therefore themselves planar.

At rest, these tongues 34 all extend substantially transversely, perpendicular to the longitudinal edges of the sealing strip 32.

It is not the same when, as shown in FIGS. 18 and 19, the ridge cover 10 concerned is in place at the ridge of a roof and its sealing strips 32 come to cover the covering elements 13 under - adjacent, by marrying, alternately, their hollow parts 14 and their raised parts 15.

Indeed, in line with the recessed portions 14 of these covering elements 13, the tongues 34 of these sealing strips 32 then move apart one another in a fan shape, consequently extending each obliquely, alternately in one direction and in the other, with respect to the direction of elongation of the assembly, while, in line with their raised portions 15, they are crushed.

As will be noted, due to the successive accordion connection of these tongues 34 with each other, the tightness, transversely, of the assembly is, in all cases, perfectly preserved.

Furthermore, for its connection with the corresponding sealing strip 32 of an adjacent ridge cap 10, as shown diagrammatically in broken lines on the FIG. 16, the sealing strip 32 of the ridge cap 10 according to the invention has, at one of its transverse ends, a mortise 52, and, at the other of its transverse ends, a stud 53 suitable for being engaged in such mortise 52.

As shown in solid lines in FIG. 17, the profile of this mortise 52 and this tenon 53 can be rectangular.

However, as a variant, and as shown in broken lines in this FIG. 17, it can just as easily be triangular.

Anyway, this mortise 52 and this tenon 53 preferably extend over the entire height H of the sealing strip 32, by affecting the central region of the transverse ends of the latter.

At their ends, and as shown schematically by broken lines in FIG. 16, the ridge closers 10 partially overlap each other on the side of the mortise 52 of their sealing strips 32, and, from the one to the other, it is engaged, in this mortise 52, the stud 53 of the sealing strips 32 of the ridge cap 10 which precedes them.

Furthermore, in the embodiment shown in these Figures 15 to 22, and as a variant of the preceding ribs 28, there is provided, projecting, on the lower surface of the sole 17, at least one boss 60, whose grip , on this sole 17, extends at least beyond the ventilation openings 25A, 25B relative to the inclined face 18 adjacent.

In the embodiment shown in solid lines in the figures, this boss 60 extends longitudinally, over the entire length of the ridge shutter 10, being disposed beyond the ventilation openings 25A, 25B relative to the inclined face 18 adjacent.

In practice, this boss 60 is in the form of a rod which runs parallel to the edge 21 by which an inclined face 18 is connected to the sole 17, the other side of the ventilation openings 25A, 25B with respect to this inclined face 18, and there is thus, projecting from the lower surface of the sole 17, symmetrically with respect to one another with respect to at the center line of this sole 17, two bosses 60, at the rate of one per inclined face 18.

As is easy to understand, these bosses 60 are intended to frame the ridge purlin 12.

This implies a suitable adequacy between the width of this ridge purlin 12 and that of the ridge closers 10 which must be covered, ensuring that, in any case, it can obscure in any way the ventilation openings 25A, 25B of these ridge closers 10.

In the embodiment shown in FIG. 21, each of the bosses 60 thus implemented has, from place to place, projecting on its edge, lugs 61.

For a given overall height, this advantageously minimizes the amount of material to be used.

But, if desired, and as shown in FIG. 22, the bosses 60 used can have the same height over their entire length.

Of course, the present invention is not limited to the embodiments described and shown, but encompasses any variant and / or combination of their various elements.

In addition, its field of application is not limited to the case where the ridge clasp in question comprises, each arranged respectively on either side of its sole, in one piece with the latter, two inclined faces. , but extends on the contrary just as well in the case where only one of these inclined faces is used, either that the corresponding cover comprises only one ramp, or that, comprising two ramps, it is used, on either side of the corresponding ridge purlin, two ridge half-closers each thus constituted by such a sole and such an inclined face, as claimed.

Neither would it depart from the scope of the present invention by providing a longitudinal groove, hollow on its free edge, on the sealing strip or strips that such a ridge closure includes.

Finally, the field of application of the invention is not limited to that of only ridge closers.

On the contrary, it extends, more generally, to any closure having at least one sealing strip.

This may be the case, for example, with shutters surrounding a window frame on a roof.

Claims (28)

1. A sealing element of the kind comprising, projecting from its lower surface, for its application against a subjacent element, an elastically deformable sealing band (32) adapted to match at least approximately the contour of the latter, characterized in that over at least part of its height the said sealing band (32) is divided longitudinally into tongues (34) which successively at least partially overlap one another transversely.

2. A sealing element according to claim 1, characterized in that the tongues (34) of the sealing band (32) successively fit into one another by means of a rabbet joint (35).

3. A sealing element according to claim 2, characterized in that the rabbet joint (35) by means of which two successive tongues (34) of the sealing band (32) fit together is a diehedral rabbet joint.

4. A sealing element according to claim 2, characterized in that the rabbet joint (35) by means of which two successive tongues (34) of the sealing band (32) fit together is a mortise (35˝) and tenon (35′) rabbet joint.

5. A sealing element according to any one of claims 3 and 4, characterized in that the said rabbet joint (35) is symmetrical.

6. A sealing element according to claim 2, characterized in that the rabbet joint (35) by means of which two successive tongues (34) of the sealing band (32) fit together is a rabbet joint (35) having perpendicular end edges (37′) longitudinally displaced relative to one another.

7. A sealing element according to claim 1, characterized in that the sealing band (32) is divided longitudinally into two half-bands (31-I, 32-II) each of which is divided into tongues (34) and there is a longitudinal displacement of the said tongues (34) of one of the half-bands (31-I, 32-II) relative to those of the other.

8. A sealing element according to claim 1, characterized in that the tongues (34) of the sealing band (32) overlap one another successively.

9. A sealing element according to claim 8, characterized in that, in order to overlap, the tongues of the sealing band have oblique end edges (37˝).

10. A sealing element according to any one of claims 1 to 9, characterized in that the sealing band (32) is only divided into tongues (34) over part of its height.

11. A sealing element according to claim 1, characterized in that the tongues (34) of the sealing band (32) are joined to one another successively like an accordion.

12. A sealing element according to claim 11, characterized in that the tongues (34) of the sealing band (32) are joined to one another successively like an accordion along their facing longitudinal edges.

13. A sealing element according to claim 12, characterized in that one longitudinal edge of each tongue (34) of the sealing band (32) is continuous with that of the tongue (34) which precedes it and the other of its longitudinal edges is continuous with that of the tongue (34) which succeeds it.

14. A sealing element according to any one of claims 11 to 13, characterized in that, at rest, the tongues (34) of the sealing band (32) all extend substantially transversely.

15. A sealing element according to any one of claims 1 to 14, characterized in that the transverse edges of the tongues (34) of the sealing band (32) are level.

16. A sealing element according to any one of claims 11 to 15, characterized in that the sealing band (32) has a trapezoidal contour in transverse section.

17. A sealing element according to any one of claims 1 to 15, characterized in that the sealing band (32) has a rectangular contour in transverse section.

18. A sealing element according to any one of claims 1 to 17, characterized in that in order to connect it to the corresponding sealing band (32) of an adjacent sealing element, the sealing band (32) comprises a mortise (52) at one of its transverse ends and, at the other of its transverse ends, a tenon (53) adapted to be engaged in such a mortise (52).

19. A sealing element according to claim 18, characterized in that the tenon (53) and the mortise (52) of the sealing band (32) extend over all the height of the latter.

20. A sealing element according to any one of claims 1 to 19, characterized in that in the case of a sealing element for a roof ridge it comprises along at least one of the sides of a base plate (17) by means of which it is adapted to be disposed along the ridge beam of a roof, an overall inclined wall (18) by means of which it is adapted to overlap, at least in part, the upper row of the covering elements of the corresponding slope of the cover which such a roof comprises and, projecting from the lower surface of the said inclined wall (18), in order to be able to apply it against the said covering elements, an elastically deformable sealing band (32).

21. A roof ridge sealing element according to claim 20, characterized in that the base plate (17) comprises, at intervals, ventilation openings (25A, 25B) and at least one projection (60, 28) projects from the lower surface of the said base plate (17) occupying a space, on the said base plate (17), which extends at least beyond the said ventilation openings (25A, 25B) relative to the adjacent inclined wall (18).

22. A roof ridge sealing element according to claim 21, characterized in that the said projection (60) extends longitudinally being disposed beyond the ventilation openings (25A, 25B) relative to the adjacent inclined wall (18).

23. A roof ridge sealing element according to claim 22, characterized in that the said projection (60) extends longitudinally over the entire length of the roof ridge sealing element.

24. A roof ridge sealing element according to any one of claims 22 or 23, characterized in that the said projection (60) is rod shaped.

25. A roof ridge sealing element according to any one of claims 22 to 24, characterized in that the said projection (60) comprises, at intervals, spurs (61) projecting from its edge.

26. A roof ridge sealing element according to claim 21, characterized in that the said projection (28) extends transversely connecting the base plate (17) to the adjacent inclined wall (18).

27. A roof ridge sealing element according to claim 26, characterized in that the said projection (28) is present in the form of a rib.

28. A roof ridge sealing element according to any one of claims 26 or 27, characterized in that there are a plurality of projections (28) spaced apart.

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