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(11) | EP 0 136 288 B1 |
| (12) | EUROPEAN PATENT SPECIFICATION |
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| (54) |
VENTILATOR FOR VENTILATED ROOFS VENTILATOR FÜR GELÜFTETE DÄCHER VENTILATEUR POUR TOITS VENTILES |
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| Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). |
TECHNICAL SCOPE
[0001] The present invention relates to a ventilator intended for removal at the top of air from the under-side of a ventilated roof covered with preferably trapezoidally shaped run-off panels.
TECHNOLOGICAL BACKGROUND
[0002] By way of external roof covering on buildings etc. metal plate is frequently used at present in order to prevent the penetration of rain and snow from above. These so called "run-off panels" are often shaped with ridges and grooves in the direction of the roof's inclination. Towards the top the inclined areas of the roof meet in ridges, for instance in the case of pitched roofs and hipped roofs. It is desirable for the said run-off panels to be maintained in one way or another at or close to the temperature of the external air. The principal reason for this consists in the fact that snow on the roof must not melt and the water therefrom must not run down and freeze to ice at the base of the roof. If this happens accidents may be caused as a result of falling bits of ice. The melt water may also accumulate in front of these walls of ice and penetrate the house through the joints between the roof panels.
[0003] A good method of maintaining the roof panels at a temperature close to that of the external air consists in allowing external air to rise by natural draft below the roof panels and to be allowed to escape at the top in the ridge area. It has however proved difficult to achieve simple and cheap ventilation in the ridge area, enabling such air to escape while at the same time preventing rain and snow from being blown under the roof covering while likewise eliminating any possibility of birds and insects getting in and causing damage.
[0004] The German patent publication DE 2430 959 describes a ventilator for a ridge of a building which only is comprising a cap for an opening along a ridge at a roof covered by shaped plates. The cap is provided with walls along its sides which are supporting against the ridges between the grooves and also provided with sealings projecting downward from the cap into the grooves just in the area at the walls of the cap. A disadvantage with this ventilator is that its ability to let the air inside the building to pass out is restricted by the area of the grooves. Another disadvantage is that condense, which is forming on the under-side of the cap, will fall down upon the shaped plate and accumulate above the sealings and even pass through the opening at the ridge between the two shaped plates. Another disadvantage with this ventilator is that it is not provided with a netting or a perforated plate to prevent insects and birds from passing into the building.
DESCRIPTION OF THE INVENTION
[0005] It is the object of the present invention to solve these problems. This object has been achieved by means of a ventilator designed to permit air to pass out from a building, whereby the said roof is provided with a covering of run-off panels extending from the respective eaves of the roof upward towards a ridge, with an opening provided along the extent of the ridge. The ventilator comprises a cap extending along the ridge of the roof and covering the opening between the roof sections and a cover plate so arranged as to cover the opening below the cap and above the roof panels. The cap is preferably provided with a perforation extending at least along its longitudinal sides. Both the cap and the cover plate have two flanks meeting in an apex along the centre line of the ridge of the roof. The cover plate may be provided with a perforation both at its apex and along its longitudinal sides.
[0006] The ventilator in accordance with the invention is especially suitable at roof coverings consisting of shaped panels, the grooves of which extend at right angles in respect of the ridge of the roof, whereby each groove of the shaped panel is provided with sealing facing along the ridge opening. The sealings is brought about preferably by jolting the chaped plate so as to achieve a wall along the opening or by means of strips of a compressible material.
[0007] The cover plate is located along the ridge opening so that its perforation along the longitudinal sides is above the run-off panels. As a result condensation water forming on the underside of the cap as well as rain and snow water penetrating through perforations in the cap can drop down onto the cover plate and run down through perforations along the longitudinal sides and sown onto the run-off panels.
[0008] The cap is so located that its perforation is substantially above the cover plate perforation along the longitudinal sides.
[0009] The perforations in the cap and cover plate respectively consist of holes so small that relatively large insects cannot pass through. This also ensures that the ventilator does not permit birds to enter the building through the ventilator.
[0010] The inventions is described in detail in the subsequent claims, through an embodiment and in the attached drawings whereby
figure 1 shows part of a pitched roof seen at an angle from above;
figure 2 shows a cross-section through the ridge of the roof shown in figure 1;
figure 3 shows a section of the roof in accordance with figure 2 seen from above.
EMBODIMENT
[0011] The pitched roof in accordance with figure 1 is provided with a covering 1 of shaped run-off panels extending from the respective eaves up towards the ridge of the roof where an opening, 2, is provided along the extend of the ridge. The ventilator in accordance with the invention comprises a cap, 3, extending along the ridge of the roof and covering the opening, 2. The cap, 3, comprises two flat flanks, 4 each of which is parallel with the respective section of the roof and provided along the longitudinal sides with a substantially vertical wall, 5, connecting the respective flank, 4, with a base, 6, which in turn supports the cap, 3. The cap, 3, is provided with a perforation, 7, extending along the longitudinal side of the respective flank, 4.
[0012] A cover plate, 8, is so arranged as to cover the opening, 2, below the cap, 3, whereby the cover plate, 8, consists of two flat flanks, 9, each of which is parallel with the respective flank, 4, of the cap, 3, and abuts the respective section of the roof. The cover plate, 8, is provided on the one hand with a perforation, 10, extending in a zone along its centre line and partly with a perforation, 11, extending in a zone along its longitudinal side. The respective side perforation, 11, of the cover plate, 8, is arranged vertically below the respective perforation, 7, of the cap, 3, and on the part of the flat flank, 9, which is above the roof covering, 1.
[0013] The roof covering, 1, of shaped steel panels comprises groves, each extending at a right angle to the ridge of the roof and provided with an area jolted u so as to form a sealing wall, 12, on either roof section along the opening, 2.
[0015] With this arrangement air flows from outside along the underside of the roof covering from the eaves ut to the ridge of the roof and out through the central perforation in the cover plate and further through the perforation in the cap along its longitudinal sides following the path indicated by the fully drawn arrow lines in figure 2. Any incoming rain and snow water or condensate from the ventilator runs off along the roof covering following the path indicated by the dashed arrowed lines in figure 2.
1. A ventilator arranged at the ridge of a building roof and intended to let air to
pass out from the building, whereby the roof is provided with shaped panels (1) sloping
at each side of the roof from an opening (2) along the ridge and comprising grooves
extending at a right angle to the ridge and provided with a seal (12) at each groove
to prevent water from passing into the opening (2) between the two panels (1), whereby
the ventilator is including a cover plate (8), extending along the ridge of the roof
and covering the opening (2) and along which it is perforated and consisting of two
first flanks (9) joining at the ridge and extending down over and passing the ends
of the panels (1) and the seals (12), and a cap (3), extending along the ridge and
consisting of two second flanks (4) joining at the ridge, extending down over the
first flanks (9) of the cover plate (8), at distance from the cover plate (8), which
lower sides end in downward facing walls (5), characterised in that the second flanks
(4) of the cap (3) are provided with a perforation (7) along their lower sides and
that the walls (5) are attached to the lower parts of the cover plate (8), and whereby
the first flanks (9) of the cover plate (8) are provided with a perforation (11) extending
along their sides below the porforation (7) of the cap (3).
2. A ventilator in accordance with claim 1, characterised in that the seal (12) at
each groove is brought about by jolting the shaped panel (1) so as to achieve a wall
along the opening, whereby the seal (12) is in contact with the under-side of the
cover plate (8) in an area between its center perforation (10) and its side perforation
(11).
1. Am First eines Gebäudedaches angeordneter Ventilator zum Herauslassen von Luft
aus dem Gebäude, wobei das Dach mit profilförmig geformten Tafeln (1) versehen ist,
die an jeder Seite des Daches von einer Öffnung (2) entlang dem First verlaufen und
Nuten aufweisen, die im rechten Winkel zum First verlaufen und mit einer Dichtung
(12) an jeder Nut versehen ist, damit Wasser nicht zwischen zwei Tafeln (1) in die
Öffnung (2) gelangen kann, wobei der Ventilator eine Abdeckplatte (8) umfasst, die
entlang dem Dachfirst verläuft und die Öffnung (2) abdeckt und entlang der sie perforiert
ist und aus zwei ersten Flanken (9) besteht, die am First miteinander verbunden sind
und von dort nach unten verlaufen und die Enden der Tafeln (1) und die Abdichtung
(12) passieren, und wobei der Ventilator eine Kappe (3) umfasst, die entlang dem First
verläuft und aus zwei zweiten Flanken (4) besteht, die am First miteinander verbunden
sind und über die ersten Flanken (9) der Abdeckplatte (8) nach unten verlaufen und
zwar in einem Abstand von der Abdeckplatte (8), wobei die unteren Seiten der zweiten
Flanken in nach unten gerichtete Wände (5) enden, dadurch gekennzeichnet, dass die
zweiten Flanken (4) der Kappe (3) mit einer Perforation (7) entlang deren unteren
Seiten versehen ist und dass die Wände (5) an den unteren Teilen der Abdeckplatte
(8) angebracht sind, und dass die ersten Flanken (9) der Abdeckplatte (8) mit einer
Perforation (11) versehen sind, die entlang deren Seiten unterhalb der Perforation
(7) der Kappe (3) verläuft.
2. Ventilator nach Anspruch 1, dadurch gekennzeichnet, dass die Abdichtung (12) an
jeder Nut durch Stauchen der geformten Tafel (1) hergestellt ist, um so entlang der
Öffnung eine Wand zu erhalten, wobei die Abdichtung (12) mit der Unterseite der Abdeckplatte
(8) in einem Bereich zwischen dessen mittiger Perforation (11) und ihrer seitlichen
Perforation (11) in Berührung steht.
1. Ventilateur agencé à la crête d'un toit d'un immeuble et destiné à permettre à
l'air de passer vers l'extérieur en provenance de l'immeuble, le toit étant pourvu
de panneaux en forme (1) en pente de chaque côté du toit à partir d'une ouverture
(2) le long de la crête et comprenant des gorges s'étendant à angle droit avec la
crête et pourvu d'un joint (12) à chaque gorge pour empêcher l'eau de passer dans
l'ouverture (2) entre les deux panneaux (1), le ventilateur comprenant une plaque
de couverture (8) s'étendant le long de la crête du toit et couvrant l'ouverture (2)
et le long de laquelle elle est perforée et consistant en deux premiers flancs (9)
se joignant à la crête et s'étendant vers le bas sur et passant par les extrémités
des panneaux (1) et des joints (12), et un capuchon (3) s'étendant le long de la crête
et consistant en deux seconds flancs (4) se joignant à la crête, s'étendant vers le
bas sur les premiers flancs (9) de la plaque de couverture (8), à une distance de
la plaque de couverture (8), lesquels côtés inférieurs se terminent en parois (5)
tournées vers le bas, caractérisé en ce que les seconds flancs (4) du chapeau (3)
sont pourvus d'une perforation (7) le long de leurs côtés inférieurs et en ce que
les parois (5) sont attachées aux parties inférieurs de la plaque de couverture (8)
et les premiers flancs (9) de la plaque de couverture (8) sont pourvus d'une perforation
(11) s'étendant le long des côtés en-dessous de la perforation (7) du chapeau (3).
2. Ventilateur selon la revendication 1, caractérisé en ce que le joint (12) à chaque
gorge est obtenu en imprimant le panneau en forme (1) afin d'obtenir une paroi le
long de l'ouverture, ainsi le joint (12) est en contact avec le dessous de la plaque
de couverture (8) dans une zone entre sa perforation centrale (10) et sa perforation
latérale (11).