Assembly and installation of ventilation systems for metal roofs

Abstract

Title: Ventilation Assembly and Installation for Metal Roofs The invention relates to a ventilation assembly for a metal roof (2), the assembly comprising: - a tube (1) intended to pass through a roof (2), the tube (1) having an upper opening (10) intended to be located above the roof (2); - a cap (3) intended to overhang the upper opening (10) of the tube (1); - a casing (4) having a lower rim (41) that can be secured to the roof (2), around a through hole provided in the roof (2), the casing (4) providing a passage for the tube (1) which is intended to pass through the through hole in the roof (2); - a cover (5) removably assembled onto an upper end (42) of the casing (4), the tube (1) being removably assembled to the cover (5), the upper opening (10) of the tube (1) opening above the cover (5), the cap (3) being assembled on the lid (3) and / or the surround (4).Figure for the abridged version: Fig. 1.

Description

Title of the invention: Ventilation assembly and installation for metal roofs technical field

[0001] The field of the invention is that of the design and manufacture of roofing accessories.

[0002] The invention relates more particularly to an assembly for making a roof cap, and an installation implementing this assembly. State of the art

[0003] A ventilation cap is a device installed at the top of a ventilation or exhaust duct, for example to complete a controlled mechanical ventilation system.

[0004] The main function of a ventilation cap is to form an air inlet, or to allow the evacuation of air, smoke or vapor, while protecting the opening from the weather, in particular rain and snow, but also from the intrusion of animals or debris.

[0005] In the field of metal roofing, ventilation caps designed to be installed during the installation of the metal roof are known.

[0006] For pre-existing metal roofs, there is a relative need for solutions that are quick to implement, or at least quicker than the solution of creating a ventilation cap ex nihilo, in order to facilitate the intervention of a roofer to create such a ventilation cap after the creation of the metal roof.

[0007] This requirement must also take into account that such a ventilation cap must be easy to install.

[0008] Furthermore, following the intervention of a roofer to create a ventilation cap, other professionals such as electricians must be able to work on the ventilation cap in order to connect their equipment to elements of the ventilation cap, or to work through the ventilation cap. Technical problem

[0009] The invention is specifically designed to meet this need of the prior art.

[0010] More specifically, the invention aims to provide a solution to enable the creation of a ventilation cap on a metal roof, even if the metal roof is already in place.

[0011] The invention also aims to provide such a solution which is easy and simple to install.

[0012] The invention also aims to provide such a solution which facilitates the intervention of other professionals. Summary of the invention

[0013] These objectives, as well as others that will appear subsequently, are achieved thanks to the invention, which relates to a ventilation system for a metal roof, the system comprising: - a tube intended to pass through a roof, the tube having a top opening intended to be located above the roof; - a cap intended to overhang the upper opening of the tube; characterized in that the assembly comprises: - a surround with a lower rim that can be attached to the roof, around a through hole made in the roof, the surround providing a passage for the tube which is intended to pass through the through hole in the roof; - a cover removably assembled on an upper end of the surround, the tube being removably assembled to the cover, the upper opening of the tube opening above the cover, the cap being assembled on the cover and / or the surround.

[0014] The ventilation assembly according to the invention forms a solution for equipping a pre-existing metal roof with a ventilation cap.

[0015] Indeed, the ventilation system involves making a hole through the metal roof, then coupling the surround around the through hole, and finally installing the tube, cover, and cap, from outside the roof only.

[0016] The removable assembly of the cover and the cap allows the ventilation unit to be at least partially disassembled after installation. This allows other building professionals to access the ventilation cap in order to install equipment on it. Indeed, the expression "removable assembly" means that the relevant parts or components of the assembly are assembled in such a way that they can be disassembled or separated without damaging them. Such removable assemblies involve, for example, the use of reversible fastening methods.

[0017] This ventilation assembly can be at least partially prefabricated, if not entirely prefabricated in a factory, thus providing a quick and easy solution for a roofer to install. Because it can be prefabricated, this ventilation assembly is a solution that can be standardized, facilitating its integration into structures and its adoption by project managers.

[0018] According to a preferred feature, the surroundings extend laterally by presenting a succession of flat faces.

[0019] Such a surround is easy for a roofer to work with. Indeed, such flat faces can be easily cut to adapt the surround to the slope of the metal roof on which the ventilation assembly is installed.

[0020] For example, flat faces that are not positioned orthogonally to the direction of the slope must be cut obliquely according to the slope of the metal roof.

[0021] Preferably, the surround has at least one opening for the drainage of condensation water provided near its lower edge.

[0022] Such a condensation water drainage opening allows the evacuation of a potential condensate that would have formed inside the surroundings.

[0023] This condensation water drainage opening is provided at the lowest point of the surrounding area following its installation on a metal roof.

[0024] Advantageously, the surroundings have at least one ventilation opening.

[0025] According to an advantageous feature, the enclosure has a rectangular cross-section.

[0026] Such an enclosure is easy to produce and install thanks to a succession of four flat faces which can be easily adapted by a roofer using his conventional tools.

[0027] According to a preferred solution, the enclosure is formed from at least one sheet metal.

[0028] Typically the surround is formed from a single sheet of metal which must be bent prior to the sale or installation of this surround.

[0029] Advantageously, the hat is removably assembled onto the lid and / or the surround.

[0030] The invention also relates to an installation comprising a metal roof, characterized in that it implements the ventilation assembly as previously described, the metal roof having a through hole around which the lower edge of the surround is secured, the tube passing through the through hole and taking place in the passage provided in the surround.

[0031] Preferably, the lower edge of the surround is welded onto the metal roof.

[0032] Advantageously, the through hole presented by the metal roof is bordered by a raised edge.

[0033] This reading prevents a potential condensate or potential infiltration from flowing through the through hole. Brief description of the drawings

[0034] Other features and advantages of the invention will become more apparent upon reading the following description of various preferred embodiments of the invention, given by way of illustrative and non-limiting examples, and the accompanying drawings, among which: • [Fig.1] [Fig.1] is a schematic perspective representation of an installation with a sloping metal roof, implementing a ventilation system according to the invention; • [Fig.2] [Fig.2] is a schematic exploded perspective representation of another embodiment of a ventilation assembly according to the invention; • [Fig.3] [Fig.3] is a schematic exploded perspective representation of another embodiment of a ventilation assembly according to the invention. Detailed description

[0035] With reference to figures 1 to 3, ventilation assemblies for metal roofs are shown.

[0036] In [Fig.1], an installation implementing the ventilation assembly is represented, this installation comprising a metal roof 2 having a slope, and a ventilation assembly being installed on this metal roof 2.

[0037] With reference to [Fig. 1], the metal roof 2 has a slope F pointing downwards. This metal roof 2 comprises a metal covering, which may, for example, be zinc, and a support structure comprising, for example, battens.

[0038] The roof 2 can be of the standing seam or batten seam type.

[0039] Although not shown, this metal roof 2 has a through hole which is intended to be passed through by a tube 1 of the ventilation assembly.

[0040] The roof 2 can be pierced and then cut using a saw in order to create the through hole.

[0041] The through hole in the metal roof 2 is bordered by a raised edge, for example 5 millimeters high. To achieve this, the through hole is cut to a diameter smaller than the desired final diameter, and the metal covering is shaped to form the raised edge.

[0042] This upstand extends outwards from the roof 2 and is intended to prevent water from entering the roof 2 from outside the roof 2.

[0043] With reference to Figures 1 to 3, the ventilation assembly comprises: - a tube 1; - an entourage of 4; - a lid 5; - a hat 3.

[0044] As mentioned previously, tube 1 is intended to pass through roof 2.

[0045] This tube 1 has a top opening 10 which is intended to be located above the roof 2.

[0046] The tube 1 also has a lower orifice 11 intended to be fluidly connected to other equipment such as a controlled metal ventilation system.

[0047] This tube 1 is described in more detail later.

[0048] The surround 4 has a lower rim 41 which can be attached to the roof 2.

[0049] This lower rim 41 can be attached to the roof 2 around the through hole made in the roof 2.

[0050] This surround 4 provides a passage for the tube 1 which is intended to pass through the through hole in the roof 2 and to extend through the passage provided by the surround 4.

[0051] This enclosure 4 also has an upper end 42 on which the cover 5 is intended to be removably assembled.

[0052] According to the present embodiment, the enclosure 4 extends laterally by presenting a succession of flat faces 400.

[0053] More specifically, the enclosure 4 extends laterally by presenting four flat faces 400.

[0054] According to a cross-section, the enclosure 4 is rectangular.

[0055] More specifically, the enclosure 4 has a rectangular cross-section of the square type.

[0056] According to other conceivable embodiments, the enclosure 4 could have three flat faces 400, or more than four flat faces 400, and have a suitable polygonal cross-section.

[0057] Enclosure 4 still presents: - a condensation water drainage opening 43 which is provided near the lower edge 41; - at least one ventilation opening 44.

[0058] According to the present embodiment, the drainage opening 43 is made by drilling one of the flat faces 400 of the surround 4.

[0059] According to the present embodiment, the enclosure 4 has four ventilation openings 44 distributed in pairs on two flat faces 400 intended to be oriented in the direction of the slope F.

[0060] The enclosure 4 is formed from at least one sheet, and more precisely from a single sheet.

[0061] Indeed, this enclosure 4 is formed by folding the sheet metal, and clinching and / or welding.

[0062] With reference to [Fig.2], it can be observed that the enclosure 4 has a rectangular prism shape.

[0063] Indeed, the surround 4 can be prefabricated to this shape, then require adjustment at its installation site by the professional carrying out this installation.

[0064] This adjustment takes the form of a cut 410 of the lower end of the surround 4 in order to form a lower rim 41 adjusted to the angle of the slope F of the roof 2.

[0065] The surround 4 is made of a metallic material suitable for being attached to the metal roof 2. The surround 4 is in particular suitable for being welded to the metal roof 2.

[0066] This enclosure 4 can be manufactured, where appropriate, in zinc, copper, stainless steel, aluminum or even pre-painted steel.

[0067] The cover 5 is removably assembled on the upper end 42 of the surround 4.

[0068] More specifically, this cover 5 is assembled by means of screws on the upper end 42 of the surround 4.

[0069] This enclosure 4 has a top face 51 framed by four rims 52 extending orthogonally to the top face 51.

[0070] This cover 5 has a central opening on which the tube 1 is intended to be removably assembled.

[0071] More specifically, the tube 1 includes a sleeve 15, an end cap 12 onto which the sleeve 15 is intended to be assembled, for example by gluing, and a screw-on ring 13 intended to be screwed onto the end cap 12, sandwiching the cover 5. With reference to the embodiment of [Fig.3], the sleeve 15 can be extended by an extension 14.

[0072] Two seals 16 can be positioned on either side of the cover 5 when screwing the ring 13 to be screwed onto the tip 12.

[0073] In this way, the tube 1 is removably assembled onto the cover 5.

[0074] Tube 1 is advantageously made of plastic, in particular PVC.

[0075] Assembling the tube 1 onto the cover 5 by sandwiching the cover allows a plastic element to be secured, thus providing a tubular element made of a material suitable for connection by conventional means to a domestic air network pipe (VMC, WC downpipes, and kitchen hoods for example).

[0076] The tube 1 is intended to be assembled on the cover 5 prior to the removable assembly of the cover 5 onto the surround 4.

[0077] Disassembling the cover 5 of the enclosure 4 allows the tube 1 to be removed from the enclosure 4.

[0078] The cap 3 is intended to overhang the upper opening 10 of the tube 1.

[0079] This cap 3 provides a volume between itself and the upper orifice 10 of the tube 1 to allow the entry or exit of gas, or fumes.

[0080] According to the embodiment illustrated in [Fig. 1], the hat 3 is removably assembled onto the cover 5 by means of fixing tabs 31.

[0081] With reference to the embodiment illustrated by [Fig.2], the hat 3 is intended to be assembled onto the cover 5 by means of a grid 32 extending laterally in a continuous manner.

[0082] The hat 3 is then coupled all along the grid 32.

[0083] With reference to the embodiment illustrated by [Fig.3], we find the grid 32 allowing the hat 3 to be coupled to the lid 5.

[0084] Finally, with reference to the embodiment illustrated by [Fig.3], the ventilation assembly includes an insulating shell 6 taking place inside the enclosure 4 around the tube 1. This shell takes the form of the passage delimited by the enclosure 4, and has within it a through hole with the imprint of the tube 1 incorporating a clearance to facilitate the insertion of the tube 1 through this through hole.

[0085] The shell can be made of rigid foam such as polyurethane.

[0086] In the ventilation assembly described above, the enclosure 4 is made of a metallic material. It should be noted that the cap 3, including the grille 32, and the cover 5 are also made of a metallic material.

[0087] This metallic material can be stainless steel, copper, lacquered steel, aluminum.

[0088] The design of the ventilation assembly allows for the attachment of the plastic tube 1 to the cover 5. In this way, and as mentioned previously, connection to a domestic ventilation system is facilitated.

[0089] The ventilation assembly described above may be prefabricated and require only adaptation during installation by the professional carrying out the intervention.

[0090] The ventilation assembly makes it possible to form a standardized and aesthetic cap facilitating its integration on structures.

[0091] The parts of the ventilation assembly described above can be easily produced on an assembly line in a factory, which simplifies its production and reduces its manufacturing cost.

[0092] It helps to limit the time spent installing it on a roof.

[0093] Finally, this ventilation system facilitates interventions by other trades after the installation of this system.

Claims

Demands

1. A ventilation assembly for a metal roof (2), the assembly comprising: - a tube (1) intended to pass through a roof (2), the tube (1) having a top opening (10) intended to be located above the roof (2); - a cap (3) intended to overhang the top opening (10) of the tube (1); characterized in that the assembly comprises: - a surround (4) having a bottom rim (41) which can be secured to the roof (2), around a through hole provided in the roof (2), the surround (4) providing a passage for the tube (1) which is intended to pass through the through hole in the roof (2); - a cover (5) removably assembled on an upper end (42) of the surround (4), the tube (1) being removably assembled to the cover (5), the upper opening (10) of the tube (1) opening above the cover (5), the cap (3) being assembled on the cover (3) and / or the surround (4).

2. Assembly according to the preceding claim, characterized in that the surround (4) extends laterally presenting a succession of flat faces (400).

3. Assembly according to any one of the preceding claims, characterized in that the surround (4) has at least one drainage opening (43) for condensation water provided near its lower rim (41).

4. Assembly according to any one of the preceding claims, characterized in that the surround (4) has at least one ventilation opening (44).

5. Assembly according to any one of the preceding claims, characterized in that the enclosure (4) has a rectangular cross-section.

6. Assembly according to any one of the preceding claims, characterized in that the surround (4) is formed from at least one sheet.

7. Assembly according to any one of the preceding claims, characterized in that the cap (3) is removably assembled onto the cover (5) and / or the surround (4).

8. Installation comprising a metal roof, characterized in that it implements the ventilation assembly according to any one of the preceding claims, the metal roof (2) having a through hole around which the lower rim (41) of the enclosure (4) is secured, the tube (1) passing through the through hole and taking place in the passage provided in the enclosure (4).

9. Installation according to the preceding claim, characterized in that the lower rim (41) of the surround (4) is welded to the metal roof (2).

10. Installation according to any one of claims 8 and 9, characterized in that the through hole presented by the metal roof (2) is bordered by a raised edge.

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