Sheet metal cladding panel

Abstract

A sheet metal cladding panel for covering roofs and walls of buildings. An elongated sheet metal member forms a web of the panel. The sheet metal member has upwardly folded flanges along two elongated edges of the web of the panel. A first of the upwardly folded flanges is folded outwards and downwards along an upper edge to form a first lap. A second of the upwardly folded flanges is folded inwards and downwards along its upper edge to form a half lap. Also a system and a method for cladding roofs and walls with at least two panels. The panels include pre-cuts at a double-layered first flange.

1 . A sheet metal cladding panel, comprising:
 an elongated sheet metal member forming a web of the panel,   upwards folded flanges along two elongated edges of said web of the panel,   a first of said upwards folded flanges being folded outwards and downwards along an upper edge to form a first lap, said upper edge thus taking shape of a first ridge, a second of said upwards folded flanges is folded inwards and downwards along an upper edge to form a half lap,   first flange, said first lap and said mounting rail formed integrally in one piece as a plate forming the web is folded along a first line to form an inner wall of the first flange, folded along said first ridge to form a top side of said first lap, folded a along a longitudinal edge of said first lap to form a bottom side of said first lap, folded along and below said first ridge to form an outer side of said first flange and folded outwards along a bottom line of said first flange to form a mounting rail,   wherein said outer side of said first flange and said bottom side of said first lap comprise pre-cuts at regular intervals along the panel.   
   
   
       2 . The panel according to  claim 1 , wherein a cross-sectional length of the half lap is smaller than a cross-section length of the first lap. 
   
   
       3 . The panel according to  claim 2 , wherein a height of the first flange from a bottom of the panel to said first ridge of the first flange is 30 to 50 mm. 
   
   
       4 . The panel according to  claim 2 , wherein a height of the second flange from the bottom of the panel to a second ridge of the second flange is around 30 mm. 
   
   
       5 . The panel according to  claim 3 , wherein said mounting rail extends as a rim alongside and on the outside of said first flange approximately in the same plane as the web of the panel. 
   
   
       6 . The panel according to  claim 5 , wherein said mounting rail is shorter than said first flange of the panel. 
   
   
       7 . The panel according to  claim 5 , wherein the height of the second flange from the bottom up to a top of a second ridge, formed at an intersection of the second flange and the half lap, is approximately the same as a distance from said mounting rail to an inside top of a notch formed between the first flange and the first lap. 
   
   
       8 . The panel according to  claim 1 , further comprising:
 a sealing agent provided at a production process of the panel, and applied in a notch formed between said first flange and said first lap.   
   
   
       9 . The panel according to  claim 1 , wherein the panel at one end and between said first and said second flanges comprises a foot plate integrally formed with the web of the panel and being folded downwards and inwards below said web. 
   
   
       10 . The panel according to  claim 1 , wherein the mounting rail comprises distributed sunk holes for fastening members. 
   
   
       11 . The panel according to  claim 1 , wherein the first flange protrudes from an end of the panel to form a triangular section as the first ridge extends a distance further in relation to the end of the panel than the bottom of said first flange. 
   
   
       12 . A cladding system for covering a substructure, the cladding system comprising:
 at least two sheet metal cladding panels each comprising an elongated sheet metal member forming a web of the panel, upwardly folded flanges along two elongated edges of said web of the panel, a first of said upwards folded flanges being folded outwards and downwards along an upper edge to form a first lap, said upper edge thus taking shape of a first ridge, a second of said upwards folded flanges is folded inwards and downwards along an upper edge to form a half lap, said first flange, said first lap and said mounting rail formed integrally in one piece as a plate forming the web is folded along a first line to form an inner wall of the first flange, folded along said first ridge to form a top side of said first lap, folded along a longitudinal edge of said first lap to form a bottom side of said first lap, folded along and below said first ridge to form an outer side of said first flange and folded outwards along a bottom line of said first flange to form a mounting rail, wherein said outer side of said first flange and said bottom side of said first lap comprise pre-cuts at regular intervals along the panel,   a first of said panels is mounted alongside a second of said panels,   first flange of said first panel abuts the second flange of said second panel for forming a seam between them,   said lap of said first flange covers the half lap of said second flange,   the lap is clamped over the half lap and thus forms a folded seam of said first and said second panels, and   fasteners fixing the panels to the substructure are arranged in holes of the mounting rail, wherein an area of the plate around said hole of the mounting rail is sunk in relation to the remaining area of the mounting rail, such that the screw heads are embedded in the mounting rail.   
   
   
       13 . The cladding system according to  claim 12 , further comprising:
 a sealing agent sealing the seam, wherein the sealing agent is provided between the first and the second panel in a notch formed between said first flange and said lap.   
   
   
       14 . The cladding system according to  claim 12 , wherein the panels are fixed to the substructure by the mounting rail integrated with the first flange of the first panel. 
   
   
       15 . A method for covering a substructure, the method comprising:
 providing at least two panels each comprising an elongated sheet metal member forming a web of the panel, upwardly folded flanges along two elongated edges of said web of the panel, a first of said upwards folded flanges being folded outwards and downwards along an upper edge to form a first lap, said upper edge thus taking shape of a first ridge, a second of said upwards folded flanges is folded inwards and downwards along an upper edge to form a half lap, said first flange, said first lap and said mounting rail formed integrally in one piece as a plate forming the web is folded along a first line to form an inner wall of the first flange, folded along said first ridge to form a top side of said first lap, folded along a longitudinal edge of said first lap to form a bottom side of said first lap, folded along and below said first ridge to form an outer side of said first flange and folded outwards along a bottom line of said first flange to form a mounting rail, wherein said outer side of said first flange and said bottom side of said first lap comprise pre-cuts at regular intervals along the panel,   cutting at least of said panels along one of said pre-cuts,   attaching a first one of said panels to the substructure utilizing the mounting rail on said first panel,   inserting the second ridge of a second of said panels into and along the notch of said first panel,   rotating said second panel around the second ridge downwards until the second flange of the second panel abuts the first flange of the first panel, and   attaching the second one of said panels to the substructure utilizing the mounting rail on said second panel.   
   
   
       16 . The method according to claim  18 , further comprising:
 clamping the first lap against the first flange of the first panel, thus encircling the half lap and clamping the first lap, the half lap, the top of the second flange and the top of the first flange together and thereby establishing a sealed seam between the first and the second panel.   
   
   
       17 . The method according to claim  18 , further comprising:
 folding a section protruding from the end of the first flange of the first panel around the end of the second flange of the second panel for form forming a sealed end of the first and second flanges.