EP3201409B1 - Method of covering a roof - Google Patents

Method of covering a roof Download PDF

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Publication number
EP3201409B1
EP3201409B1 EP15778239.2A EP15778239A EP3201409B1 EP 3201409 B1 EP3201409 B1 EP 3201409B1 EP 15778239 A EP15778239 A EP 15778239A EP 3201409 B1 EP3201409 B1 EP 3201409B1
Authority
EP
European Patent Office
Prior art keywords
panels
sheet
panel
weldable
correspondence
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.)
Active
Application number
EP15778239.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3201409A1 (en
Inventor
Daniele Guerrini
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.)
Isopan SpA
Original Assignee
Isopan SpA
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 Isopan SpA filed Critical Isopan SpA
Priority to PL15778239T priority Critical patent/PL3201409T3/pl
Priority to SI201531153T priority patent/SI3201409T1/sl
Priority to RS20200280A priority patent/RS60040B1/sr
Publication of EP3201409A1 publication Critical patent/EP3201409A1/en
Application granted granted Critical
Publication of EP3201409B1 publication Critical patent/EP3201409B1/en
Priority to HRP20200650TT priority patent/HRP20200650T1/hr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
    • E04D3/352—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material at least one insulating layer being located between non-insulating layers, e.g. double skin slabs or sheets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
    • 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
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • 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
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
    • E04D3/355—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material the insulating layers of adjacent slabs having cooperating edges

Definitions

  • the present invention relates to the field of roofing panels, particularly to insulated panels. More particularly, the invention relates to those panels that, for reasons of structural strength and heat insulation, provide for the coupling of a corrugated panel metal sheet and a smooth metal sheet with the interposition of an insulating layer of a foam material.
  • corrugated insulated panels i.e., panels consisting of a set of two metal sheets, typically one corrugated sheet and one flat, which are sandwiched into one layer of insulating material of greater or lesser thickness.
  • the corrugated sheet can be placed either on the outside or on the inside; in the first case, the corrugated contour of the panel forms side-by-side channels, arranged along the slope main axis of the roof, which therefore constitute channels for rainwater to flow and to facilitate water drainage.
  • the panels are mounted so as to create a slight overlap between the last crest on the corrugation on one panel and the first crest on the corrugation of the adjacent panel. This method of installation is sufficient to prevent water infiltration. So the sheet is protected simply by passivation or by painting.
  • the entire surface of the flat sheet is usually coated with a high strength PVC membrane, forming a layer especially effective for water-tightness. Thanks to the presence of this membrane, once the various panels are combined together in place, the gap between panels can also be sealed by applying a PVC strip that is heat sealed (heat welded) to the contiguous parts of two adjacent panels. This strip applied to the work is also called a bridging strip or "pontage".
  • EP1375770 discloses such a panel of the prior art.
  • the first drawback occurs when the covering is very large. This problem stems from the fact that the installation of the panels can take several hours, if not days, so the joints between panels remain exposed to the environment for some time, awaiting the heat sealing operation with the bridging strips, which is done upon the complete assembly of all the panels. Obviously, then, if the assembly of the panels takes a relatively long time, during this period certain weather events might occur that lead to the deposit of water, or even just moisture, on the surface of the panels, which therefore tends to infiltrate to the bottom layers through the free gaps of the joints between panels.
  • a second drawback occurs under certain manufacturing conditions, when the flat metal sheet is coupled with the PVC layer immediately after the sheeting or lamination, thus before undergoing a process of bending in a suitable form for the composition of the panel.
  • the flat metal sheet before being coupled with the corrugated sheet and the intermediate insulating layer (usually made of mineral wool or polyurethane foam), the flat metal sheet is subjected to continuous bending to form edges with a C or U shape, which then create profiles for containing the insulating material as well as the finishing edge of the panel.
  • Continuous bending is achieved with special machinery systems having bending rollers, which exert a considerable bending force on the peripheral areas of the sheet, also producing significant localised deformations at the corners of the bends. This bending process can adversely affect the PVC coating.
  • bridging strip is integral with an edge of the insulating membrane.
  • the bridging strip is in the shape of a flap extending from the panel, which results in a number of problems both in the manufacturing step and in the storage of the panels.
  • the problem at the base of the invention is therefore to propose a new roof cladding method with panels coated with PVC to solve the problems mentioned above, facilitating the work of assembly and ensuring a longer life against the weather elements.
  • an insulated panel 1 consists, in a manner known per se, of a first flat sheet 10 and an opposite sheet 11, preferably with a corrugated shape, between which is sandwiched a layer of insulating material 12, for example, mineral wool or polyurethane foam.
  • the panel - and consequently the related sheets 10 and 11 - has two longitudinal sides (right and left in fig. 1 ) of indefinite length and two end sides (front and back in Fig. 1 ), determined at the time of the cross cutting of the panel, of a length equal to the width of the laminated sheet.
  • the two longitudinal sides are suitably finished to hold inside the insulating material 12, while the end sides have rough cuts that reveal the insulating material 12.
  • the sheets are preferably made of a metallic material, such as galvanised steel, and have a variable thickness, typically from 0.6 mm to 1 mm when they are smooth and from 0.4 to 1 mm, pre-painted, when corrugated.
  • the corrugated sheet 11 is clearly shaped using special bending equipment; but the flat sheet 10 also has longitudinal terminal edges bent in a C or U shape defining finishing longitudinal edges for the containment of the insulating material 12.
  • the flat sheet on the outside of the panel, has a surface layer or membrane 10' made of PVC, or another protective and weldable plastic material, having a proper thickness.
  • the surface layer 10' of protective material - instead of covering the entire surface of the raw flat sheet, as in the prior art - extends only on a portion of the raw flat sheet 10, leaving two uncovered continuous guard bands along the longitudinal periphery 10", adjacent to the two longitudinal edges of the flat sheet 10.
  • peripheral longitudinal guard bands 10 have a width sufficient to leave uncovered and expose strips of the metal sheet even after the bending and shaping of the longitudinal finishing edges.
  • the two peripheral longitudinal bands 10 however, have smaller width than the half-width of a bridging strip which must be applied to the panels in the next phase of mounting the array of panels and sealing them each other.
  • the panel used in a method according to the invention hence has two longitudinal peripheral bands where the flat sheet remains uncovered and exposed and has no protective PVC membrane/layer 10'.
  • the partial coating of PVC 10' according to the invention can be applied at an earlier stage to that of bending the longitudinal edges of the flat sheet 10. In this way, leaving the peripheral longitudinal bands 10" without protective membrane/layer, the bending operation can take place effectively and undisturbed, without causing any harm to the surface of the PVC coating 10'. Therefore a first actual beneficial effect is obtained in relation to the stage of manufacturing the panel.
  • the installation method according to the invention therefore foresees two distinct phases, namely, one step of mounting the panels adjacent each other with simultaneous temporary covering of the joint gap with adhesive tape, and a later step of applying and welding the bridging strip of final covering.
  • the operator undertakes to place the panels side by side and secure them, one at a time, as usual.
  • the attachment of the two contiguous panels 1 and 2 can be done, in a manner already known per se, by using a retaining plate 3 into which an anchor screw 4 is inserted, that is fixed below the support frame ( fig. 3 ).
  • the operator immediately - that is, before moving on to mounting another panel - makes the provisional covering of the gap between the panels, easily applying adhesive tape across the borders of the two panels involved.
  • adhesive tape a commercial product can be used, for example, aluminum foil tape.
  • the adhesive tape is able to adhere perfectly on the bare metal surface of the flat sheet panel, establishing a temporary, but very secure, protection suitable for making the required seal on the seam between the panels, at least for the whole time intervening until the start of the second step of the installation process, which can take place even after some days.
  • the bridging strips 5 ( fig. 4 ), made of a material weldable to the PVC sheet 10', are applied using the usual hot welding techniques.
  • the strips must have a width greater than the sum of the widths of the bare bands 10" so as to be welded to the panel area provided with the PVC layer 10'.
  • the adhesive tape for the temporary sealing can be left in position, not interfering with the process of welding.
  • This second step which, as mentioned, is the hot application of the bridging strips, can thus be performed upon completion of the installation of all the panels on the roof surface without fear of water or moisture penetrating into the gaps between the panels during the period between one step and the other, for as long as the period of the first step may be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Laminated Bodies (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Working Measures On Existing Buildindgs (AREA)
EP15778239.2A 2014-09-29 2015-09-29 Method of covering a roof Active EP3201409B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL15778239T PL3201409T3 (pl) 2014-09-29 2015-09-29 Sposób pokrywania dachu
SI201531153T SI3201409T1 (sl) 2014-09-29 2015-09-29 Postopek za pokrivanje strehe
RS20200280A RS60040B1 (sr) 2014-09-29 2015-09-29 Postupak za pokrivanje krova
HRP20200650TT HRP20200650T1 (hr) 2014-09-29 2020-04-22 Postupak za prekrivanje krovova

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20141697 2014-09-29
PCT/EP2015/072456 WO2016050784A1 (en) 2014-09-29 2015-09-29 Composite roofing panel, sheet thereof and method of covering a roof

Publications (2)

Publication Number Publication Date
EP3201409A1 EP3201409A1 (en) 2017-08-09
EP3201409B1 true EP3201409B1 (en) 2020-01-29

Family

ID=52000935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15778239.2A Active EP3201409B1 (en) 2014-09-29 2015-09-29 Method of covering a roof

Country Status (14)

Country Link
EP (1) EP3201409B1 (pt)
DK (1) DK3201409T3 (pt)
ES (1) ES2781180T3 (pt)
HR (1) HRP20200650T1 (pt)
HU (1) HUE048910T2 (pt)
LT (1) LT3201409T (pt)
MX (1) MX2017004138A (pt)
PL (1) PL3201409T3 (pt)
PT (1) PT3201409T (pt)
RS (1) RS60040B1 (pt)
RU (1) RU2707230C2 (pt)
SI (1) SI3201409T1 (pt)
UA (1) UA121484C2 (pt)
WO (1) WO2016050784A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900006006A1 (it) 2019-04-17 2020-10-17 Isopan S P A Unita' di rivestimento o copertura per tetti
IT202000002926A1 (it) 2020-02-13 2021-08-13 Isopan S P A Pannello di rivestimento o copertura per grandi luci

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8916262D0 (en) * 1989-07-15 1989-08-31 Allan Roofing Limited Roofing panel
DE20210072U1 (de) * 2002-06-28 2002-10-02 Schmelzer, Klaus, Dipl.-Ing., 57413 Finnentrop Sandwichpaneel, Anordnung aus zwei Sandwichpaneelen sowie Halbzeug eines solchen Sandwichpaneels
EP1704288A1 (en) * 2003-12-16 2006-09-27 Kingspan Holdings (IRL) Limited A roof panel
JP5659039B2 (ja) * 2011-02-24 2015-01-28 アイジー工業株式会社 パネルの連結構造
RU118659U1 (ru) * 2011-09-07 2012-07-27 Кингспан Холдингс (ИРЛ) Лимитед Комбинированная панель

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
RS60040B1 (sr) 2020-04-30
MX2017004138A (es) 2017-10-31
HUE048910T2 (hu) 2020-08-28
PL3201409T3 (pl) 2020-07-27
PT3201409T (pt) 2020-04-06
LT3201409T (lt) 2020-04-10
DK3201409T3 (da) 2020-04-20
ES2781180T3 (es) 2020-08-31
RU2015133803A (ru) 2017-02-22
RU2015133803A3 (pt) 2019-03-04
UA121484C2 (uk) 2020-06-10
SI3201409T1 (sl) 2020-07-31
WO2016050784A1 (en) 2016-04-07
RU2707230C2 (ru) 2019-11-25
HRP20200650T1 (hr) 2020-07-10
EP3201409A1 (en) 2017-08-09

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