Universal rainwater drain for the edge of a roof structure and pitched roof with a roof structure with such an edge

Description

Scope of the invention

[0001] The invention relates to building roofs.

[0002] It relates more particularly to a universal gutter for the drainage of rainwater around the periphery of a roof structure integrated into a sloping section of a roof and is defined by claim 1a. State of the art

[0003] It is common to incorporate roof structures of diverse shapes and functions into pitched roofs.

[0004] These roof structures include, in particular, skylights of the roof type such as roof windows or rooflights and dormer windows of the type known as "chien-assis".

[0005] In roof windows of the tabatière or vasista type, a rectangular frame is inserted into the slope of the roof and contains a tilting opening, incorporating glazing.

[0006] In dormer windows of the "chien-assis" type, two side panels of the dormer are fixed to the roof frame. The two panels are connected by the window frame, and the entire assembly of panels and frame is covered with a watertight covering connected to the roof.

[0007] Ensuring a watertight seal around skylights and dormer windows is a major challenge in roof construction. Achieving proper waterproofing requires optimal rainwater drainage around these roof structures, preventing water from penetrating the building. To this end, these roof structures are surrounded by gutters that are inserted beneath the roofing materials (tiles, slates, etc.) and serve to collect water around the roof structure and channel it downwards. The gutter profile must be adapted to the profile and dimensions of the roofing materials (slates, tiles, waterproof sheets). The wide variety of roofing materials available on the market (flat slates, tiles of various profiles, rigid flat or corrugated sheets, flexible membranes) necessitates a wide variety of gutter options.This constraint considerably complicates roof construction and increases costs. It also has a negative impact on the mechanical strength of the materials.

[0008] A water drainage gutter on a sloping roof is for example known from EP 1 485 547 B1. Summary of the invention

[0009] The invention aims to remedy the aforementioned disadvantages of pitched roofs, incorporating roof windows, dormer windows, skylights or similar structures such as canopies or chimneys for example.

[0010] The invention is more specifically aimed at providing a gutter for the equipment of roof windows, skylights or similar structures, which is of simple design and whose construction is easy and inexpensive.

[0011] The invention is specifically aimed at providing a gutter that is universal, in the sense that it can be easily adapted to the majority of roofing elements.

[0012] The invention also relates to a newly designed sloping roof incorporating a roof window, a dormer window, a sitting dormer or a similar structure, according to claim 14.Accordingly, the invention relates to a universal gutter for the drainage of rainwater around the periphery of a roof structure, integrated into a sloping section of a roof, said gutter comprising a pair of longitudinal plates, an upper transverse plate and a lower transverse plate, said longitudinal plates and the upper transverse plate being designed to be inserted under roofing elements of the roof section and the lower transverse plate being designed to overhang roofing elements of the roof section; according to the invention, the gutter is characterized in that the longitudinal plates comprise, on the upper face, a succession of longitudinal grooves which extend over the entire length of the plates and in which longitudinal ribs are inserted. Detailed description of the invention

[0013] The invention applies to roofs which include a sloping section and which incorporate a roof structure in said sloping section.

[0014] In the remainder of this document, the term "roof structure" generally refers to any type of roof window, skylight, dormer window, dormer, or any other structural element commonly incorporated into a sloping roof face, such as a chimney, turret, or dovecote (this list is illustrative and not exhaustive). The connection between the roof structure and the roof face may have straight or curved edges. Straight edges are preferred. Polyhedral connections are preferred. Among these, parallelepiped connections are preferred, for example, square, rectangular, and trapezoidal connections.

[0015] The gutter according to the invention is designed to be positioned around the roof structure so as to channel rainwater around it and down the sloping roof face, preventing water infiltration under the roof. To this end, it comprises a pair of longitudinal plates, an upper transverse plate, and a lower transverse plate. In the remainder of this document, the term "longitudinal" refers to the direction of the slope of the roof face, and the term "transverse" refers to a direction perpendicular to said longitudinal direction. By definition, the longitudinal and transverse plates are defined by their positions when the gutter is normally positioned around the roof structure, within the sloping roof face.The longitudinal plates are oriented along the slope of the roof's inclined face, and the transverse plates are oriented perpendicular to the slope. The length of the longitudinal plates is therefore their dimension along the roof's slope. The upper transverse plate is, by definition, located at a higher level than the lower transverse plate.

[0016] The longitudinal gutter plates and the upper transverse plate are designed to fit under the roofing elements of the roof slope. They are normally positioned on the roof structure, between it and the roofing elements, and are in direct contact with the roofing elements. The lower transverse plate is designed to overhang a row of roofing elements.

[0017] Roofing elements can be any roofing elements commonly used in the building industry, such as rows of natural or synthetic tiles or slates, a rigid metal sheet (e.g., lead or zinc), a rigid corrugated sheet (e.g., rigid polyvinyl chloride, metal or cement reinforced with a fibrous material) or a flexible waterproof sheet (e.g., a synthetic polymer sheet, a bitumen sheet or a flexible metal sheet) (example list, not exhaustive).

[0018] The longitudinal and transverse plates of the gutter according to the invention can be flat or corrugated. It is preferable that the plates be flat.

[0019] In one embodiment of the gutter according to the invention, the longitudinal and transverse plates are normally made of a waterproof material capable of withstanding typical atmospheric conditions during normal use of the gutter on a building's roof. For this purpose, they may, for example, be made of metal (e.g., lead, zinc, galvanized steel, copper) or a synthetic polymer and be produced by rolling, molding, or extrusion (this list is illustrative and not exhaustive). Synthetic polymers are preferred. The choice of polymer is not critical to the definition of the invention. It may be a rigid, semi-rigid, or flexible polymer. Advantageously, it is an elastomer, possibly reinforced.Natural or synthetic mineral materials are well suited as reinforcement material for elastomers, especially fibrous fillers (e.g. glass fibers and rock wool, mineral aggregates and metallic wires and powders).

[0020] According to the invention, the longitudinal plates comprise, on their upper surface, a series of longitudinal grooves extending along the entire length of the plates, and longitudinal ribs are inserted into the grooves. By definition, the upper surface of the plates is the one facing upwards when the gutter is normally arranged around the roof structure, in the sloping roof section. The lower surface is the one that is normally facing downwards.

[0021] In one embodiment of the gutter according to the invention, the ribs are held laterally within the grooves. They are generally fitted into the grooves and thus present, in the area of ​​their insertion into a groove, a profile complementary to that of the groove. This can be a square, rectangular, or semi-circular profile (this list is illustrative and not exhaustive). A trapezoidal dovetail profile is preferred.

[0022] The ribs are preferably removable.

[0023] The ribs typically extend along the entire length of the longitudinal panels and their function is to retain water laterally on the panel, preventing it from seeping into the attic space beneath the roof. They can be made of the same material as the longitudinal panels or a different material. They are preferably rigid, semi-rigid, or flexible.

[0024] The choice of rib height depends on the roofing elements, ensuring they fit underneath them. In the case of corrugated roofing elements, the ideal rib height is roughly equal to the width of the corrugations. With this type of corrugated roofing, the longitudinal gutter panels and the ribs they support create high-capacity gutters for rainwater runoff.

[0025] In a preferred embodiment of the invention, the height of the ribs is adjustable so as to adapt them to the various commercially available roofing tile models, such as interlocking tiles, channel tiles, Roman tiles, pan tiles, or Flemish tiles (https: / / toiture.pro / types-formes-tuiles.php) (example list, not exhaustive). To this end, the ribs can be provided with markers defining predefined heights, each height corresponding to a specific model of roofing tile. The ribs are then simply cut at the height corresponding to the selected roofing tiles, for example, using slash cutters. The aforementioned markers advantageously include rib break points. These break points can, for example, comprise longitudinal incisions made in the ribs, allowing them to be broken precisely, for example, by folding.The presence, on each rib, of multiple break zones, distributed at predefined intervals above the longitudinal gutter plates, enhances the gutter's modularity by adapting it to a wider range of roofing elements. It is recommended that a break zone be provided along the rib's connection to the longitudinal plate, allowing for the complete removal of the rib and thus adapting the gutter to primarily flat roofing elements.

[0026] In a particular embodiment of the invention, the ribs are flexible strips whose height can be adjusted by compression under the weight of the roofing elements.

[0027] In another embodiment of the invention, the longitudinal gutter plates comprise a series of grooves on each of their two faces. Although not essential, it is advantageous for the grooves on the upper face of the plates to alternate with the grooves on the lower face. This alternating arrangement of the grooves reduces the thickness of the plates and provides them with optimal flexibility, allowing them, in particular, to be bent at right angles without difficulty and without risk of breakage.

[0028] In the gutter according to the invention, the upper transverse plate is designed to be inserted under a transverse row of roofing elements. The lower transverse plate is intended to form an overhang above a transverse row of roofing elements. These two plates can be flat, corrugated, or curved.

[0029] The gutter according to the invention is designed to serve as a watertight connection around a roof structure installed on a sloping roof. For this purpose, it is normally inserted between the roofing elements and the rafters that support these roofing elements. It is specifically designed for dormer windows, the term dormer window being defined as a window in the roof of a building to provide light to the space under the roof (Le nouveau Petit Robert, Edition Dictionnaires Le Robert - Paris, June 2000, page 1469). In this document, for lack of a more explicit definition, the term dormer window refers indiscriminately to a shed dormer, a bull's-eye window, or a roof window of the soffit type (such as those marketed under the VELUX® brand and comprising glazing in the plane of a roof slope) (example list, not exhaustive).

[0030] As explained above, the longitudinal grooves of the longitudinal panels give them good flexibility. This flexibility facilitates their insertion into a corresponding groove in the roof structure. This groove in the roof structure can advantageously include a ventilation space between a load-bearing wall of the roof structure and the cladding to protect this wall from the elements. In the case of a dormer window, the wall and its cladding can form the dormer's cheeks.

[0031] The invention also relates to a roof comprising a sloping section, into which a roof structure is inserted, the sealing of the roof at the periphery of said roof structure being achieved by means of a gutter according to the invention. Brief description of the figures

[0032] Particulars and details of the invention will become apparent during the following description of the attached figures, which schematically represent some particular embodiments of the invention. There figure 1 It shows, in longitudinal section, a dormer window integrated into a sloping section of the roof of a house; The figure 2 is a side view of the sitting dog of the figure 1 , associated with a gutter conforming to the invention; The figure 3 is a section along the vertical plane III-III of the figure 2 ; There figure 4 shows, on a large scale, a detail of the figure 3 ; THE figures 5 and 6 show details of two variant implementations of the figure 4 ; THE figures 7 to 10 are five views similar to that of the figure 3 showing the gutter according to the invention, adapted to five different types of roofing elements; The figure 11 shows the gutter of the figure 4, combined with a seated dog and a particular roof covering element in an embodiment that falls outside the scope of the claimed invention; The figure 12 shows, in perspective, a variant of the construction of a longitudinal plate of the gutter of the figure 4 in a form of realization that falls outside the scope of the claimed invention; and The figure 13 shows, in perspective, an angular piece.

[0033] The figures are not drawn to scale.

[0034] Generally, the same reference numbers designate the same items. Detailed description of specific embodiments

[0035] There figure 1The diagram schematically shows a sloping roof section 44, in longitudinal section (section in a vertical plane, parallel to the roof slope). An opening 45 is made in the roof section, and this opening is covered by a dormer window designated as a whole by the reference notation 46. The dormer window 46 is shown in detail in the diagram. figures 2 And 3 It comprises two triangular side panels 2 and 3 (only panel 2 is visible at the Figures 1 And 2) fixed to two rafters 47 of the roof frame 44 and supporting a canopy 4. The two cheeks 2 and 3 and the canopy 4 are connected by a frame 7-7' of the dormer window 46. The cheeks 2 and 3 comprise, for example, wood or polymer panels 48, covered with a layer 49 of thermal insulation on their inner face. The thermal insulation layer 49 is covered with a finishing layer (not shown), which is both decorative and protective. On their outer face, the panels 48 are protected from the weather by cladding 50 made of a suitable material, for example, a metal sheet, a rigid polymer sheet, or a fiber-reinforced cement sheet of the Eternit® (Etex) brand. Spacers 51 are interposed between the panels 48 and the cladding 50 to ensure ventilation.The 7-7' dormant is a rectangular wooden frame, which rests on the roof frame by its lower transverse side 7' (. Figure 1 ). A wooden opening 8, carrying a glazed panel, is hinged in the fixed frame 7-7'.

[0036] The seal between the dormer 46 and the roofing elements 44 (tiles, slates, or similar elements) is achieved by means of a gutter 9 arranged around the periphery of the dormer 46. The gutter 9 serves to collect rainwater around the dormer and to drain it down the roof. The gutter 9 comprises a pair of longitudinal plates 10, along the cheeks 2 and 3 ( Figure 3 ), and a pair of transverse plates 26 and 40 ( Figure 2The longitudinal plates 10 are laid on the purlin battens 52, along the cheeks 2 and 3 of the dormer 46, and are partially covered by roofing elements. They include a vertical longitudinal lip 36 which is engaged in a groove 55 between the panel 48 and the cladding 50, to ensure the watertightness of the assembly. Similarly, the upper transverse plate 40 of the gutter 9 is laid on the purlin battens, under the roofing elements. It has a lip 42 ( Figure 2 ), which is engaged behind a corresponding lip 41 of the rear transverse end of the dormer. The lower transverse plate 26 of the gutter 9 rests on the purlin battens and includes a lip (not visible in the figures) which is engaged behind a corresponding lip (not visible in the figures) on the lower side 7' of the frame. Its lower end 34 overlaps a row of roofing elements.

[0037] The longitudinal plates 10 are substantially flat and bear three longitudinal ribs 11, 12 and 13.

[0038] The plates 10 are advantageously obtained by molding or extrusion of a synthetic polymer. It is preferable that the plates 10 be made of a flexible or semi-rigid synthetic polymer.

[0039] Ribs 11, 12, and 13 are attached to plates 10, as will be explained later. They are obtained by molding or extruding a flexible or semi-rigid synthetic polymer. The function of ribs 11, 12, and 13 will be explained later.

[0040] There figure 4This shows, on a larger scale, a particular embodiment of the longitudinal gutter plates 10. These plates 10 comprise, on their upper face 37, a series of grooves 32 and, on their lower face 38, a series of grooves 33 (the terms upper face and lower face being defined when the plate 10 is positioned on the roof slope). The grooves 32 and 33 extend along the entire length of the plate (the length being defined in the direction of the roof slope). The grooves 32 on the upper face of the plate 10 alternate with the grooves 33 on the lower face. This alternating arrangement of the grooves 32 and 33 reduces the thickness of the plate 10. The presence of the grooves 32 and 33 gives the plate 10 great flexibility, allowing it to be easily bent to form the vertical lip 36 defined above, with reference to the figure 3 .

[0041] The grooves 32 and 33 are dovetail profiled. The plate 10 is held onto the purlin slats 52 by means of tenons 43, inserted into the grooves 33 and fixed to the purlin slats 52 by screws 54.

[0042] The grooves 32 serve for the insertion of the ribs 11, 12 and 13 defined above with reference to the figure 3 . To the figure 4Only rib 12 is shown. It is fitted into groove 32 by its base, which is profiled with a complementary dovetail. Along its height, it has four notches 28, 29, 30, and 31. These notches constitute break zones that allow it to be shortened to a predetermined height, corresponding to a predefined type of roofing element. Notch 31 is located at the intersection of rib 12 with plate 10. This notch allows rib 12 to be completely trimmed and groove 32 to be filled. Ribs 11 and 13 may also have notches similar to notches 28, 29, 30, and 31.

[0043] There figure 5 shows a particular method of fixing a plate 10 to a purlin batten 52. In this particular method of fixing, a hook 58 is retained in a notch of the plate 10 and fixed at its end to the tile batten 52 by means of a screw or a nail 59.

[0044] There figure 6 shows a variant embodiment of rib 12 of the figure 4 In this embodiment, the rib 11 comprises alternating hollow hexagonal chambers 60 and plates 62. The hollow hexagonal chambers 60 of the rib impart axial elasticity, allowing it to be shortened by compression. Notches 63 in the edges of the plates 62 are fracture zones analogous to the incisions 28, 29, 30 of the figure 4 , to shorten rib 12, if necessary.

[0045] There figure 7 shows the sitting dog of the figure 3 associated with a Roman-type tile 15. In this application of the gutter according to the invention, the ribs 12 and 13 of the longitudinal plates 10 have been shortened so as to fit under the tile 15, the latter bearing against the rib 11.

[0046] There figure 8 shows the sitting dog of the figure 3associated with a flat interlocking tile 16. The tile 16 includes, in a conventional manner, a flat part 17, one end of which has a bead 18 and the opposite end of which has a projecting edge 19. To adapt the dormer to this type of tile, the rib 13 of the plates 10 has been completely leveled and the rib 12 has been shortened, so that the bead 18 of the tile 16 overlaps it exactly.

[0047] To the figure 9 , the sitting dog of the figure 3 is associated with a corrugated tile 20 of the "Brabant farmhouse" type. In this application, the three ribs 11, 12 and 13 have been shortened so that the tile rests exactly on the three ribs.

[0048] To the Figure 10 , the sitting dog of the figure 3is associated with a roofing element consisting of a rigid, flat plate 21, for example, a natural or synthetic slate. In this application, the three ribs 11, 12, and 13 have been significantly shortened, so as to retain only a few millimeters of height above the plate 10. They are covered with the slate 21. The small gap under the slates ensures good ventilation and rainwater runoff.

[0049] In the form of realization of the figure 11As a further point outside the scope of the claimed invention, the roofing elements comprise large flexible sheets 23. These may, for example, include bituminous sheets (known in the trade as "roofing" and sold in rolls), zinc sheets, or flexible synthetic polymer sheets (for example, polyvinyl chloride or EPDM elastomer sheets). The plates 10 are not ribbed. They are curved to form the vertical lip 36, which is slid between the panel 48 and the dormer cladding 50. The flexible sheet 23 is placed on the plate 10 and extends up along its lip 36. A tab 53 embedded in a groove 32 of the lip 36 holds the sheet 23 against it.

[0050] In cases where the dormer window requires large gutters, it may be necessary to make the longitudinal and / or transverse panels in several juxtaposed sections. This arrangement may be justified to prevent deformation of these panels due to expansion under the effect of high summer temperatures. figure 12 shows a joining element, specially designed to create a joint that is both watertight and capable of compensating for the expansion of two successive sections of plates. At the figure 12 Plate 12 is designed to be attached to a similar plate. To this end, the end of the longitudinal plate 10 and that of its vertical lip 36 are trimmed to a fraction 70 (71) of their length and half their thickness. The second plate (not shown) attached to it has trimmed areas complementary to areas 70 and 71.

[0051] There figure 13shows an angular piece, used to connect the lower transverse plate 26 or upper plate 40 of the gutter to a longitudinal plate 10 of the figure 11 This angular piece comprises two elements 64 and 65 connected at right angles. Element 64 comprises a longitudinal portion 66 and a vertical portion 67, perpendicular to portion 66. Portions 66 and 67 are arranged respectively in the extension of the longitudinal plate (10) and its vertical lip 36 ( figure 11 ). Similarly, element 65 comprises a transverse portion 68 and a vertical portion 69, perpendicular to portion 68. Portions 68 and 69 are arranged in line with the lower transverse plate 26 or upper transverse plate 40. The ends 70 and 71 of elements 65 and 66 are flush, as explained above, with reference to the figure 12 .

Claims

1. Universal gutter for rainwater drainage at the periphery of a roof structure integrated in an inclined panel of a roof, said gutter (9) comprising a pair of longitudinal plates (10), an upper transverse plate (40) and a lower transverse plate (26), said longitudinal plates (10) and the upper transverse plate (40) being designed to be inserted under roofing elements (15, 16, 20, 21, 23) of the roof panel (44) and the lower transverse plate (26) being designed to overhang roofing elements of the roof panel, such that the longitudinal plates (10) comprise, on their upper face (37), a succession of longitudinal grooves (32, 33) extending over the entire length of the plates, the gutter being characterised in that longitudinal ribs (11, 12, 13) are inserted in said longitudinal grooves (32, 33).

2. Gutter according to claim 1, characterised in that the ribs (11, 12, 13) are fitted into the grooves (32, 33).

3. Gutter according to claim 2, characterised in that the ribs and the grooves have complementary dovetail profiles.

4. Gutter according to any one of claims 1 to 3, characterised in that the height of the ribs (11, 12, 13) is adjustable.

5. Gutter according to claim 4, characterised in that the rib (11, 12, 13) carries markings defining predefined heights, each height corresponding to a defined model of roofing element (16, 20, 21).

6. Gutter according to claim 5, characterised in that the markings are break incisions (28, 29, 30, 31).

7. Gutter according to claim 6, characterised in that a longitudinal break incision (31) is provided at the junction of the rib (11, 12, 13) with the longitudinal plate (10).

8. Gutter according to claim 4, characterised in that the ribs (11, 12, 13) are elastically compressible and to this end comprise an alternation of hollow hexagonal chambers (60) and platelets (62).

9. Gutter according to any one of claims 1 to 8, characterised in that the longitudinal plates (10) also comprise a succession of longitudinal grooves (33) on their lower face (38).

10. Gutter according to claim 9, characterised in that the grooves (32) of one face (37) alternate with the grooves (33) of the other face (38).

11. Gutter according to any one of claims 1 to 10, characterised in that the longitudinal plates (10) and the upper (40) and lower (26) transverse plates comprise a lip (26, 42) intended to be engaged behind a corresponding sealing element (50, 41) of the roof structure.

12. Gutter according to claim 11, characterised in that the aforementioned sealing element (50, 41) is a cladding (50) of the roof structure.

13. Gutter according to any one of claims 1 to 12, characterised in that the plates (10, 26, 40) and / or the ribs (11, 12, 13) are made of a rigid, semi-rigid or flexible polymeric material.

14. Roof comprising an inclined panel in which a roof structure is inserted, characterised in that the watertightness of the roof (44) at the periphery of the roof structure (46) is achieved by means of a gutter (9) according to any one of claims 1 to 13.