EP4214376A1 - Couverture de revêtement pour toits de bâtiments civils ou industriels - Google Patents

Couverture de revêtement pour toits de bâtiments civils ou industriels

Info

Publication number
EP4214376A1
EP4214376A1 EP21785996.6A EP21785996A EP4214376A1 EP 4214376 A1 EP4214376 A1 EP 4214376A1 EP 21785996 A EP21785996 A EP 21785996A EP 4214376 A1 EP4214376 A1 EP 4214376A1
Authority
EP
European Patent Office
Prior art keywords
folds
slabs
bracket
slab
roofs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21785996.6A
Other languages
German (de)
English (en)
Other versions
EP4214376B1 (fr
Inventor
Mauro Menegoli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4214376A1 publication Critical patent/EP4214376A1/fr
Application granted granted Critical
Publication of EP4214376B1 publication Critical patent/EP4214376B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
    • E04D3/363—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets with snap action
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
    • E04D3/362—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets by locking the edge of one slab or sheet within the profiled marginal portion of the adjacent slab or sheet, e.g. using separate connecting elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
    • E04D2003/3612—Separate fastening elements fixed to the roof structure and comprising plastic parts for avoiding thermal bridges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
    • E04D2003/3615—Separate fastening elements fixed to the roof structure and consisting of parts permitting relative movement to each other, e.g. for thermal expansion

Definitions

  • the present invention relates to a high-performance metal cover for roofs of civil or industrial buildings.
  • the metal cover according to the invention utilises a plurality of metal slabs adjacent to one another and connected by the special profiling of the lateral edges thereof.
  • the present invention is advantageously applied in the sector of covers for roofs of buildings in general and panel covers in particular with a metal structure.
  • the cover of roofs with large-surface elements is usual for large surfaces, such as industrial sheds, or production facilities, or large infrastructures, offering greater implementation velocity and low cost thereof.
  • the panels and slabs for coverings of buildings are prefabricated elements having large surfaces and supplied directly to the worksite, ready to mount and equipped with all the components and accessories for realising the complete cover.
  • Such panels are made of various metals, aluminium, copper, zinc, steel or the like, or of plastic materials, ABS, Polycarbonate, PVC, or the like.
  • the slabs that make them up can have various dimensions, both in length (from less than one metre up to hundreds of metres) and in width, which is usually not greater than a metre, both for static reasons and for the limitation in width of the starting laminated strip that is known as a coil.
  • the lateral edges of the covering panels or slabs can be connected to enable joining thereof in very many ways, from a simple superposing of the edges to very complex geometries with drainage channels in the joint, up to fixing surfaces to the sub-structure, utilising geometries adapted to special fixing systems.
  • the fixing brackets can be made of metal or plastic materials, can avoid the need for piercing of the slabs, and can allow for dilation of the slabs in the lengthwise direction.
  • the choice of geometry of the slab and the metal in production determines the frequency of the fixings in the lengthwise direction and the mechanical performance at concentrated positive load, for example so as to support foot traffic, like snow and wind, and at distributed load, and at negative load, as in the typical cases of wind-uplift, i.e. the lifting thrust of the wind.
  • there exist innumerable systems outside the slabs for fixing with or without piercing, clamps, hooks etc., made of various materials and suitable for application of various accessories on the roof, such as snow catches, anti-fall systems, solar panels, walkways, plants, etc.
  • gripping and hooking components are included, which gripping and hooking components are applicable on the joined edges of two adjacent panels, which are fixable by use of a tightening and constraint component which, in this case has the characteristic of including at least one part being adapted to enable the constraint of an accessory, represented for example by solar panels or other components and accessories located on the cover.
  • a covering slab comprises an interconnected mounting component with a cover component, in which the mounting component includes a profile with a shaped base that extends longitudinally and is configured to be fixed to a purlin and a first lateral wall that extends from one side of the base.
  • the cover component further includes a connecting element that extends from a second shaped lateral wall and is configured to receive a mounting component and a second extension placed in an operating connecting condition with an adjacent cover.
  • the present invention intends to make available a metal coating cover for roofs of buildings which uses a plurality of metal slabs adjacent to one another and connected by the special shaping of the lateral edges thereof which is able to improve the general performance of the system so as to satisfy the demands highlighted above.
  • the invention provides a metal cover for roofs of buildings, the slabs thereof, positioned adjacent to one another, comprise edges which are fixed on the underlying structure by means of specially shaped brackets and the system thus made forms a continuous cover that is easy and rapid to install, long-lasting, very resistant to wind and perfectly suitable for the protection of the underlying building.
  • An important objective proposed by the present invention is to significantly improve the performance of the covering system in place, enabling an increase in terms of distance, or span, between successive rests in the lengthwise direction of the slabs, and/or a greater resistance to the wind-uplift value, i.e. the resistance to the lifting thrust of the wind.
  • a further object of the present invention is to improve the sliding of the slabs into the respective fixing brackets in order to enable free longitudinal dilation of the slabs themselves, enabling the manufacturing of even very long slabs (well above 100 metres), without this compromising and limiting the wind- uplift value, as happens with existing systems.
  • Another object of the invention is to reduce to a minimum the number of bends of the profile of the edges of the panels to be placed against one another, in the interest of greater production cost effectiveness.
  • a further object of the invention is to maintain for such folds of the profile of the edges of the panels to be placed against one another a curvature radius that is sufficiently wide as to enable the use of hard metal alloys, for example aluminium alloys, on the one hand avoiding the risk of formation of cracks, which can lead to the breakage of the material, and on the other hand avoiding the possibility of whitening of some types of colouring of the surface, which occurs for example using PVDF paints that may involve so-called whitening phenomena, in particular for dark colours, where this constitutes an unacceptable problem for customers.
  • Another object of the invention is to facilitate the mounting of external clamps, without any need to pierce the slabs, but guaranteeing great resistance thereof to the lateral, longitudinal and extraction stresses, without however increasing friction between the slabs and the fixing brackets.
  • a coating cover for roofs with a metal structure of buildings comprising a plurality of metal slabs adjacent to one another and connected by the particular shape of the lateral edges thereof and locked by brackets, the characteristics of which are described in the main claim.
  • figure 1 illustrates the schematic view in axonometric perspective of three coating slabs according to the invention, connected to one another and to the underlying surface by the brackets shown on the front;
  • figure 2 illustrates a detail of two edges and two coating slabs according to the invention placed against one another and maintained in retaining position by a mutual interlock;
  • figure 3 shows a schematic perspective frontal view of three coating slabs according to the invention placed against one another and blocked to the substructure by use of respective fixing brackets for connection between the slabs and the sub-structure, not illustrated;
  • figures 4 and 6 represent schematic views of a portion of one of the coating slabs according to the invention, provided with opposite edges each having a complementary geometric shaping with respect to one another, to enable joining between slabs placed against one another;
  • figures 5 and 5b show schematic views in axonometric perspective of one of the brackets and the detail
  • figure 8 illustrates a frontal view of the edges of two different adjacent panels placed against one another prior to being joined;
  • figures 9, 10 and 11 are detailed frontal schematic views which show the co-penetration of the shaped profiles of two edges placed against one another of the slabs respectively before, during and after introduction thereof into the locking bracket.
  • figure 12 shows a schematic view in axonometric perspective of a complete bracket in the open position before receiving the slabs;
  • figures 13 and 14 show schematic views relative to a further embodiment in which the slab is an integral part of a sandwich panel, or glued to the insulating material.
  • 20 denotes in its entirety one of the slabs according to the invention which are used for coating a roof with a metal frame, while 20' and 20'' denote the adjacent slabs.
  • Each slab 20 has a substantially rectangular conformation, indicatively a width of about 0.5 metres and a length that can also be much above 100 metres, which, given the specific conformation thereof, is achievable by using hard metal alloys, for example aluminium.
  • the slabs 20 are destined to be mutually joined to form the whole cover and for this purpose each pair of consecutive slabs coupled to one another form a longitudinal joint 21.
  • the connecting element of such longitudinal joint 11 is constituted by the geometry of the edges of the slabs, which are mutually retained, both by the co-penetration thereof and by brackets S which join to one another two consecutive slabs and guarantee fixing of the slabs to the underlying structure, not illustrated.
  • the brackets S are arranged in relation to the design, and in a normal situation, but not every situation, they would be aligned in both a transverse direction, in each joint 21 between the slabs 20, thus at a distance that coincides with the width of the slab, and aligned in a longitudinal direction at a distance that coincides with the rests of the underlying structure, not illustrated herein.
  • the joint 21 further guarantees the seal of the roof against penetration of water and air.
  • the described system adapted in the longitudinal direction by the length of the slabs, and in a transverse direction by the multitude of coupled slabs, forms a single continuous surface that constitutes the cover in its entirety.
  • the fixing brackets S comprise a base X, having a conformation generally defined by a flat rest surface 60 which rests on the sub-structure of the roof, an internal rotating element Y (proximal to the middle plane of the bracket S), and an external rotating element Z (distal to the middle plane of the bracket S).
  • the bracket S is a body typically made with a plastic material, or a metal material, or a group of these materials, or other materials.
  • the bracket S comprises two holes 46 which constitute the housing of the fixing elements to the substructure, typically screws, or other suitable elements.
  • the bracket S has a central axis of frontal symmetry and has a shaping that allows fixing two consecutive slabs 20.
  • Bracket S defines four opposite indentations 33bs, 34bs, 33as and 34as, formed respectively by four portions 44b, 45b, 44a and 45a protruding upwards and bent in a reciprocally specular direction towards the common middle plane.
  • the four indentations 33bs, 34bs, 33as and 34as are further parallel to the base of the bracket S and parallel to the rest surface 60. This conformation, as more fully described below, determine the best performance in relation to wind uplift, i.e. the lifting thrust of the wind, relative to existing systems.
  • each single slab has two opposite profiled edges A and B which are only partially symmetrical to one another, from the first fold, which is proximal to the central axis of the slab, to the eighth fold.
  • the folds 30a, 31a, 32a, 33a, 34a and 35a on the shaped edge A and the corresponding 30b, 31b, 32b, 33b, 34b and 35b on the shaped edge B, are symmetrical to one another and coincide with the geometry of the bracket S.
  • the process that corresponds to the folds 33a, 34a, 33b and 34b of the slab is housed in the indentations 33as, 34as, 33bs e 34bs of the bracket S.
  • the folds 36a and 36b respectively on the shaped edges A and B of the slab, return the slab to a substantially vertical position with an upward direction, in which the two slabs substantially adhere to one another.
  • the two folds 37a and 37b, respectively on the shaped edges A and B of the slab are also substantially symmetrical. These two folds take the two contiguous slabs in a horizontal direction opposite the middle plane of the bracket S.
  • an external fixing system can be mounted for mounting accessories, such as snow catches, anti-fall systems, solar panels, or others besides
  • This clamp when tightened, does not deform the slabs and does not lock them in the support bracket, enabling free longitudinal dilation, even in the case of slabs of significant length.
  • a fold 38 proceeds upwards and forms a curve of 180° at a top fold 39, covering, when engaged in the joint 21, the end B of the opposite slab, and ends with a final fold 40 that takes the slab in the direction of the middle plane of the bracket S.
  • edge B of the slab 20 has, at the end thereof, a fold 41, that, when it is engaged in the longitudinal joint 21, comes to adhere to the fold 40 of the opposite slab.
  • the coupling between the folds 40 and 41 exploits the elasticity of the construction material of the slabs and represents an element with an excellent seal against water, as the external surface exposed to a pressure determined by the level of the rising water, pushes the shaped edge A and the last fold 40 against the fold 41 with an intrinsically positive cohesion mechanism: the greater the pressure the better the seal.
  • each slab 20 at the end B of each slab 20 the last two folds 42 and 43 form a geometry that determines the formation of a channel 61, that is dedicated to collecting the residual water that has possibly penetrated through the coupling of the curves 40 and 41, transferring the residual water to the end of the slab.
  • the thrust of the wind acts on the entire surface of the cover with pressure in a direction that is orthogonal to the surface and in an ascending direction.
  • this pressure acts on the covering system, the pressure breaks down to weigh on the points fixing the cover to the underlying structure.
  • the seal limit for the wind-uplift, or lifting thrust of the wind, of the system of the present invention is uniquely determined by the resistance of the bracket S, which, if built for example of metal, is extremely high, and by the resistance of the material used for the slabs.
  • the bracket S as described in figures 5 and 5 bis consists of three distinct parts, a base X characterised by the recesses 33bs and 34bs and by the processes 44b and 45b, said recesses intended to receive the respective folds 33b and 34b of the slab 20 on the termination B thereof.
  • the base X on the side opposite the central axis thereof has two cylindrical indentations 47 and 48 and a further two downward indentations 49 and 50 characterised by a tooth stop geometry.
  • the other two parts of the bracket S are represented by the two internal Y and external Z rotating elements, which, in the completely assembled position, form the recesses 33as and 34as through the processes 44a and 45a, said recesses being intended to receive the respective folds 33a and 34a of the slab 20 on the termination A thereof.
  • the two rotating elements Y and Z have respectively the cylindrical processes Sly and 51z that are received respectively by the indentations 47 and 48 of the base X, further, two further processes 52y and 52z that are received respectively by the indentations 49 and 50 of the base X.
  • bracket S This conformation of the bracket S, as illustrated in figures 9, 10 and 11, permits assembly in several steps.
  • the brackets S can be inserted onto the longitudinal ends of the slab 20 on the shaped edge B. Every single bracket will then be fixed at the sub-structure, which is not shown, by fixing elements, typically screws, through the holes 46 shown in fig. 5.
  • This position of the processes 45a and 44a leave space free for assembling from above the shaped edge A of the subsequent slab 20', and in particular the portion characterised by the folds 33a and 34a of the slab.
  • the pressure exerted from above determines the rotation of the two rotating elements Y and Z, and in particular the element Y rotates clockwise taking the process 45a to a position that is distal to the middle plane of the bracket S and at the fold 35a of the shaped edge A of the slab 20' and the element Z rotates anticlockwise taking the process 44a to a position that is proximal to the middle plane of the bracket S and at the fold 32a of the shaped edge A of the slab 20'.
  • the two processes 52y and 52z respectively of the rotating elements Y and Z are located respectively in a definitive position in the indentations 49 and 50 of the base X of the bracket S. It should be noted that the definitive closure position in the solution shown is irreversible, so as to give system resistance, in particular to the extraction action of the wind, at the maximum possible levels.
  • bracket shown is one of the possible systems.
  • Other bracket systems, with more or fewer rotating elements, with magnetic, mechanical or fixed systems and the numerous variants fall within the scope thereof, and are technically equivalent.
  • the solution of the present invention determines an interference stress between the slab 20 and the bracket S only in the moment of mechanical stress, for example during a meteorological event with very strong winds. This leaves total freedom between slabs 20 and brackets S in normal conditions and significantly improves the longitudinal sliding necessary for the free heat dilation of the slabs, even in the event of extremely long slabs.
  • the embodiment shown in figure 13 refers to a variant in which the slab 20 is an integral part of a sandwich panel 70, i.e. it is glued to the insulating material (polyurethane, polystyrene or other insulating material)
  • Assembly is a roto-translation, i.e. the panel 70' to be interlocked has a movement from top to bottom to assemble the outer part and a clockwise rotation to interlock the protrusion 34 in the corresponding pocket of the bracket.
  • figure 14 is identical to the preceding embodiment with the sole difference that the upper geometry has been varied, whilst maintaining the sealing area and the drainage channel, so that assembly can occur with a longitudinal translation from right to left of the panel 70'.
  • FIG. 1 shows ideally a system of slabs that are provided with shaped edges A and B on each slab, but this can be reversed on the two sides or slabs can be conceived that are totally symmetrical with end edges A on both sides that are coupled with symmetrical slabs characterised by shaped edges B on both the sides, which are mounted alternately.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

La présente invention concerne une couverture de revêtement ayant une structure métallique pour des toits de bâtiments qui comprend une pluralité de dalles (20) sensiblement quadrilatérales, dont chacune est pourvue de bords façonnés (A, B) parallèles et en regard les uns des autres, pour relier entre elles les dalles (20) qui sont adjacentes dans la direction longitudinale et qui sont destinées à la formation d'un joint (21) positionné entre chacune des dalles adjacentes (20), lesdits bords façonnés (A, B) comprenant des plis (30, 31, 32, 33, 34, 35, 36, 37) au moins partiellement symétriques sur les deux bords et d'autres plis (38, 39, 40) qui sont réalisés sur au moins l'un des bords façonnés (A) et d'autres plis (41, 42, 43) qui sont réalisés sur au moins l'un des bords façonnés (B), lesdits bords façonnés (A, B) comprenant des courbures au niveau de plis (32, 33, 34, 35) qui épousent les géométries (33, 34, 44, 45) d'un support (S), apte à recevoir lesdits plis de bords façonnés (A, B), ladite base (X) présente une conformation définie par une surface plane (60) qui repose sur la sous-structure du toit auquel elle est fixée par des éléments de fixation traversant des trous (46) et comprend un élément rotatif interne (Y) et un élément rotatif externe (Z) qui tournent sur un axe placé au niveau d'une partie cylindrique 51y, 51z) de ceux-ci autour de logements cylindriques respectifs (47, 48) de la base (X).
EP21785996.6A 2020-09-18 2021-09-16 Couverture de revêtement pour toits de bâtiments civils ou industriels Active EP4214376B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202000022132 2020-09-18
PCT/IB2021/058452 WO2022058923A1 (fr) 2020-09-18 2021-09-16 Couverture de revêtement pour toits de bâtiments civils ou industriels

Publications (2)

Publication Number Publication Date
EP4214376A1 true EP4214376A1 (fr) 2023-07-26
EP4214376B1 EP4214376B1 (fr) 2024-04-17

Family

ID=73643254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21785996.6A Active EP4214376B1 (fr) 2020-09-18 2021-09-16 Couverture de revêtement pour toits de bâtiments civils ou industriels

Country Status (2)

Country Link
EP (1) EP4214376B1 (fr)
WO (1) WO2022058923A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1509152A1 (de) * 1963-03-14 1969-04-24 Zeppelin Metallwerke Gmbh Klemmhalterung fuer Profilbaender
EP0634535B1 (fr) * 1993-07-08 1998-12-09 ISCOM S.r.l. Couverture de toit plane composée d'éléments en tÔle pliés
US8910928B2 (en) * 2011-05-27 2014-12-16 Gregory A. Header Flanged material and standing seam clamp
NL2009550C2 (nl) * 2012-10-01 2014-04-02 Xsplatforms B V Daknaadklem voor het vastzetten van een voorwerp op een van daknaden voorzien dak.

Also Published As

Publication number Publication date
WO2022058923A1 (fr) 2022-03-24
EP4214376B1 (fr) 2024-04-17

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