External insulating cladding for building facings or roofs

Abstract

 Cladding for buildings in two treated cold-rolled steel sheets (1,3), with single or double tongue and groove joints, and hidden fastening, polyurethane has been injected between the sheets. The panels are fixed to the facing or roof by means of screw-fastened clips with at least two screws (5). The sheets are treated on the underside with a layer of galvanizing, phosphating and primer for polyurethane and on their topside with a layer of galvanizing, phosphating, primer and finally a finishing coat.

Description

OBJECT OF THE INVENTION

[0001] The present invention refers to a cladding for buildings, both facings and roofs, insulating, which can be used in all types of building.

[0002] The cladding is characterised in comprising two treated cold-rolled steel plates, between which a polyurethane layer is present.

[0003] Additionally the invention is characterised in a tongue and groove finish wherein the tongues are protected.

BACKGROUND OF THE INVENTION

[0004] Different panels are known with a metallic enclosing outer layer which houses polyurethane foam with an insulating function in their interior, such as the European patent with application number E92100970, "Cladding of facings of buildings or similar" comprising an infrastructure of channelled rails and lining panels fixed thereon.

[0005] The use of this type of panel is widespread, in which the outer layer is of a type of steel which oxidizes, a layer of external oxidation being formed which is what protects the panel from atmospheric corrosion.

DESCRIPTION OF THE INVENTION

[0006] The present invention consists of an insulating cladding for facings or roofs.

[0007] The cladding consists of two treated cold-rolled steel sheets, between which polyurethane has been injected. The panels are fixed to the facing or roof by means of screwed fastening clips.

[0008] The metal plates are treated on their underside with a layer of galvanizing, phosphating and primer for polyurethane and on the topside with a layer of galvanizing, phosphating, primer and finally a finishing coat.

[0009] The joint between panels is of simple or double tongue and groove, and hidden fastening.

[0010] Assembly is carried out by sliding between panels in a coplanar direction, since they have tongue and groove finishes on the edges of two opposing sides. The tongues are protected.

[0011] A closed cavity is configured inside the joint.

[0012] The water-tightness between panels is implemented by means of sealing between tongue and groove joints, and by means of a seal in tenon form which is inserted between the joints of the consecutive panels.

DESCRIPTION OF THE DRAWINGS

[0013] The present descriptive specification is completed with a set of drawings, which illustrate the preferred embodiment of the invention in a non-restrictive manner.

[0014] Figure 1 shows a section of the layers of treatment of the panels of the invention.

[0015] Figure 2 shows a section of the insertion ends of two panels for roofing.

[0016] Figure 3 shows a section of the insertion ends of two panels for vertical facing.

[0017] Figure 4 shows a section of the insertion ends of two panels for horizontal facing.

[0018] Figure 5 shows a view in perspective of the fastening clip for roofing.

[0019] Figure 6 shows a detail of the section of the joint in tenon form.

DETAILED EXPLANATION OF MODES OF EMBODIMENT

FIRST EXAMPLE OF EMBODIMENT: PANEL FOR ROOFING

[0020] In the light of the foregoing, the present invention consists of a roofing panel which is constituted by a layered assembly consisting of an outer sheet (1), a polyurethane outer insulating panel (2), and an inner sheet (3), the panel having ends for tongue and groove joints.

[0021] Both the outer sheet (1) and the inner (3) are made of treated cold-rolled steel.

[0022] In figure 1 the layers are shown of the different treatments which the cold-rolled steel receives.

[0023] Both the cold-rolled steel layer (1.1) which forms the outer sheet (1), and the cold-rolled steel layer (3.1) which forms the inner sheet (3) have a number of treatment layers. On the face nearest the polyurethane they have a layer (1.2, 3.2) of galvanizing, one of phosphating (1.3, 3.3) and a coat (1.4, 3.4) of primer for polyurethane, on the face opposite there is a layer of galvanizing (1.5, 3.5), a layer of phosphating (1.6, 3.6), a coat of primer (1.7, 3.7) and a finishing coat (1.8, 3.8).

[0024] The panels have double asymmetric tongue and groove joints.

[0025] The panels are joined to the roof by means of clips (4) with a U-section with an open wing (4.1) and the other wing (4.2) in form of a hook, which are fastened thereto by means of screws (5).

[0026] The clip (4) is coupled to the inner sheet (3) by the male projection (6) of the sheet which covers the open wing (4.1) of the clip (4) externally, it is also coupled to the outer sheet (1) by covering with the opposing wing (4.2) in hook form the bend (7) on the end of the outer sheet (1).

[0027] The assembly between panels is carried out by means of sliding, since they have tongue and groove finishes on the edges of two opposing sides, the male projection (8) of the outer sheet (1) and the male projection (6) of the inner sheet (3) are protected by being internal.

[0028] The outer sheet (1) has a drainage channel (9) for running off the water in the event of rain, directing it toward the general drainage gutter.

[0029] The water-tightness of the panels is guaranteed by means of sealed joints (10), and specifically a rubber joint (11 ) in tenon form assures the water-tightness between consecutive panels on the outermost part thereof.

SECOND EXAMPLE OF EMBODIMENT: VERTICAL PANEL FOR FACINGS

[0030] The vertical panel has a double tongue and groove joint with central symmetry between panels.

[0031] The clip (12) which joins the assembly to the facing is C-shaped.

[0032] This clip (12) rests on one side on the shoulder (13) of the tongue and groove joint of the inner sheet (14) in a double curved form and, on the other, on the back-folded termination (15) of the waved tongue and groove joint of the outer sheet (16).

[0033] The panels are sealed (17) to assure the water-tightness of the assembly.

[0034] The male projection (18) of the outer sheet (16) and the male projection (19) of the inner sheet (14) are protected by being internal.

THIRD EXAMPLE OF EMBODIMENT: HORIZONTAL PANEL FOR FACINGS

[0035] The horizontal panel has a single and asymmetric tongue and groove joint.

[0036] It is screwed to the assembly by means of two superimposed clips (20,21) which are screwed on the back-folded end (22) of the L-shaped termination of the outer sheet (23) of the horizontal panel.

[0037] The opposing end (24) of the outer sheet (23) of the horizontal panel is wave-shaped.

[0038] The clip (20) in contact with the sheet (23) has a C-shape and the second (21) clip above this directs its end (21.1) toward the interior of the male projection (25) of the inner sheet (26).

[0039] Between the tongue and groove joint, a rubber seal (27) is shown to provide water-tightness to the assembly.

[0040] The essential nature of this invention is not altered by variations in materials, form, size and arrangement of the component elements, described in a non-restrictive manner, sufficient for an expert to proceed to the reproduction thereof.

Claims

1. Cladding for buildings characterised in that a layered assembly is constituted consisting of an outer sheet, an insulating panel, and an inner sheet, the material of the outer and inner sheet is cold-rolled steel which has a number of layers of treatment, on the face nearest to the polyurethane they have a layer of galvanizing, one of phosphating and a coat of primer for polyurethane, on the opposing face there is a layer of galvanizing, a phosphating layer, a coat of primer and a finishing coat, the cladding is secured to the building by means of screw-fastened clips, both sheets are finished in tongue and groove joints on the edges of two opposing sides, wherein the male projections are protected and on the inside of the joint a closed cavity is configured, the configuration of the tongue and groove joint allows assembling with the entrance in a coplanar direction.

2. Cladding for buildings according to claim 1 characterised in that a joint (11) in tenon form is placed between the joints of the consecutive panels.

3. Cladding for buildings according to claim 1 characterised in that the panels come with double and asymmetric tongue and groove joints and they are coupled to the assembly by means of screwed clips (4),where the clip (4) has a U-section with one wing (4.1) open outwardly and the other one (4.2) opposite in hook form, the union of the clip (4) with the inner sheet (3) is implemented by means of the male projection (6) of the sheet (3) which covers the open wing (4.1) of the clip (4), the outer sheet (1) is held with the wing (4.2) in hook form to the end bend (7) of the outer sheet (1); both the male projection (8) of the outer sheet (1) and the male projection (6) of the inner sheet (3) are protected by being internal, and the outer sheet (1) shows a channel (9) for drainage.

4. Cladding for buildings according to claim 1 characterised in that it has a double tongue and groove joint with central symmetry between panels, and it has a C-shaped clip (12), where this clip (12) rests on one side on the shoulder (13) of the tongue and groove joint of the inner sheet (14) in double curved form, and on the other side on the bent-back termination (15) of the waved tongue and groove end of the outer sheet (16); the male projection (18) of the outer sheet (16) and the male projection (19) of the inner sheet (14) are protected.

5. Cladding for buildings according to claim one characterised in that it has a joint between panels which is a single and asymmetric tongue and groove joint, and they are joined to the assembly by means of some superimposed clips (20,21) which are screwed on the bent-back end (22) of the L-shaped termination of the outer sheet (21); the clip (20) in contact with the sheet (23) is C-shaped and the second (21) clip directs its end (21.1) toward the interior of the male projection (25).

Drawing