EP0804659A1 - Couverture en zinc pour toiture - Google Patents
Couverture en zinc pour toitureInfo
- Publication number
- EP0804659A1 EP0804659A1 EP95942113A EP95942113A EP0804659A1 EP 0804659 A1 EP0804659 A1 EP 0804659A1 EP 95942113 A EP95942113 A EP 95942113A EP 95942113 A EP95942113 A EP 95942113A EP 0804659 A1 EP0804659 A1 EP 0804659A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyester
- paint
- acrylic
- micrometers
- thickness
- 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
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
- E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
- E04D3/30—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of 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
- E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
- E04D3/16—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of metal
Definitions
- the present invention relates to a zinc or galvanized steel covering consisting essentially of an assembly of sheets of said materials and placed on a non-ventilated roofing support, said sheets therefore having one side facing said support.
- Zinc covers are traditionally placed on ventilated fir battens. Because of the high cost of this traditional support, it is sought to replace it with less expensive supports, in particular non-ventilated supports possibly not compatible with zinc or galvanized steel such as particle boards, plywood, concrete and rigid insulation. However, numerous corrosion phenomena of zinc coverings placed on these non-ventilated supports have been reported. To solve these problems it would be necessary, according to document EP-B-0410822, to improve the ventilation between the sub-roof and the zinc plates to avoid condensation and to isolate the zinc from the non-ventilated support, in particular if the support is concrete.
- the object of the present invention is to provide a blanket as defined above, which avoids the drawbacks mentioned above.
- said face of the sheets is provided with an organic coating with a thickness of at least 50 micrometers, which is elastic, durable and impermeable to water vapor, the other face of the sheets being either uncoated or coated by any surface treatment process applied for purely aesthetic purposes.
- the coating must be hard enough so that the various manipulations, that the coated sheet must undergo until it is finally placed on the support, do not leave traces in the coating or in any case not deep traces.
- the thickness of at least 50 micrometers is essential to avoid for sure that possible small scratches suffered as a result of the above manipulations can not discover zinc.
- galvanized sheets covered either with a layer of paint based on a thermosetting resin, or with a film of polyvinyl chloride and / or poiyacrylate are not always suitable from the economic point of view and in that which concerns their resistance for the production of exterior building materials.
- the coating may comprise a layer of polyester-based paint (standard symbol SP), silicone polyester (SPSI), polyester polyamide (SPPA), epoxy (EP), polyurethane (PUR), fluoride vinylidene (PVDF) vinyl chloride organosol (PVCO), vinyl chloride plastisol (PVCP), acrylic (AY) or silicone acrylic (AYS), the thickness of the layer in the dry state is advantageously from 50 to 70 micrometers.
- the painting is advantageously carried out continuously at the producer of sheets or in a painting workshop by depositing the paint in the liquid state or in the form of powder and subsequent baking by passing through an oven. Preference is given to a polyester paint deposited in the form of powder.
- Such a paint is marketed under the name "Beckryspeed" by the firm BICHON SA
- the coating can also consist of an adhesive film of polyvinyl chloride (PVCF), polyvinyl fluoride (PVFF), acrylic (PMMAF), polyethylene (PEF), polyurethane or polyester, the thickness of the film being advantageously from 80 to 150 micrometers.
- PVCF polyvinyl chloride
- PVFF polyvinyl fluoride
- PMMAF acrylic
- PETF polyethylene
- the film application is advantageously carried out continuously by the sheet producer. Preference is given to polyethylene film.
- An example of such a film is the low-density polyethylene adhesive film with a thickness of 100 micrometers, which is marketed under the reference 4118 by the company NO ACEL SA.
- coating with adhesive film is preferable to coating. by painting.
- the coating may further consist of a layer of paint as defined above, which is itself covered with an adhesive film as defined above. Needless to say, such a coating is even more effective than coating with paint or adhesive film.
- the other face of the sheet is either uncoated or coated by any surface treatment process applied for purely aesthetic purposes.
- this face can be prepatinated.
- the present invention also relates to the use of zinc or galvanized steel sheets, one side of which is provided with a coating as defined and described above and the other side of which is either uncoated or coated for purely aesthetic purposes, for the realization of the cover according to the invention, this embodiment comprising the operations of shaping the sheets necessary for their laying and the laying proper of the shaped sheets.
- the shaping and laying of coated sheets, supplied by the sheet producer, can be done according to current practice.
- the techniques described in "Engineering techniques”, C1040, 1 can be used.
- C1040, 1 can be used.
- C1041, 1-5 to place such blankets on a wooden support, except that the cleats or clips will be fixed to the support by screwing instead of by nailing.
- the film After unwinding, the film is plated on the rolled zinc by means of a set of pressure rollers and the whole is rewound into a reel. This coil will then be cut in width and length suitable for use on construction sites.
- the thickness of zinc is that commonly used for roofing, between 0.65 and 1 mm.
- the plastic film is made of low density polyethylene 100 micrometers thick.
- the adhesive is a mixture of rubber and resin 10 micrometers thick.
- the film has remained well adhered to the laminate.
- the samples then undergo an accelerated corrosion test, known as the Kesternich test according to DIN 50017, comprising a cycle per day consisting in depositing water vapor by condensation and then allowing the sample to dry. After 20 days (20 cycles) the plastic film is removed and it is found that the face protected by the film is not corroded. The other side is excessively corroded by condensation, by the formation of zinc oxide, called white rust.
- Zinc samples coated with the film were placed in an oven for 60 days either at 90 ° C or 100 ° C. Beforehand, folds and stampings were made on the samples to simulate the deformations that the product will undergo on a site.
- a zinc coil After rolling, a zinc coil is subjected to a surface treatment operation by conversion, giving on both sides a surface layer of zinc phosphate, either light gray in color or dark gray in color, the zinc thus obtained being called pre-patinated zinc.
- Pre-patinated zinc is rewound into a coil.
- the pre-weathered zinc coil undergoes the same operations as the rolled zinc coil in Example 1 and the material thus obtained is subjected to the same tests as the material obtained in Example 1: the same results are obtained as in Example 1.
- EXAMPLE 3 The zinc coil coated with example 1 was used to make a cover above a room in which steam was produced.
- the interior of the room is maintained at 30 ° C with a relative humidity of 100% and its walls are thermally insulated so that the humidity condenses preferentially on the underside of the laminated zinc protected by the film. These conditions are chosen to considerably accelerate the condensation phenomena under the cover that we usually obtain.
- This coil will then be cut in width and length suitable for use on construction sites.
- the thickness of rolled zinc is that commonly used for roofing, between 0.65 and 1 mm.
- the powder is a BECKRYSPEED polyester powder specially manufactured to combine the performance and advantages of the powder with the technology of continuous application.
- test pieces underwent the accelerated salt spray corrosion test according to the NFX standard.
- test pieces have undergone the Kesternich test, according to DIN 50017 for 1000 hours
- Example 5 The operations and tests of Example 4 are repeated, but starting this time with a coil of prepatinated zinc and the same results are obtained as in Example 4.
- Example 6 The operations and tests of Example 4 are repeated, but in the powder installation, between the cooler and the rewinder, a film is continuously deposited on the coated side. low density polyethylene adhesive 50 micrometers thick. The same results are obtained as in Example 4.
- Example 7 The operations and tests of Example 6 are repeated, but starting this time with a coil of pre-patinated zinc. The same results are obtained as in Example 4.
- EXAMPLE 8 The operations of example 3 are repeated, but this time using the zinc coil coated with example 4. The same result is obtained as in example 3.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Glass Compositions (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Non-Insulated Conductors (AREA)
- Primary Cells (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Electroplating Methods And Accessories (AREA)
- Coating With Molten Metal (AREA)
- Physical Vapour Deposition (AREA)
- Building Environments (AREA)
- Arc Welding In General (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9415568 | 1994-12-23 | ||
FR9415568A FR2728604A1 (fr) | 1994-12-23 | 1994-12-23 | Couverture en zinc pour toiture |
PCT/EP1995/004886 WO1996020320A1 (fr) | 1994-12-23 | 1995-12-07 | Couverture en zinc pour toiture |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0804659A1 true EP0804659A1 (fr) | 1997-11-05 |
EP0804659B1 EP0804659B1 (fr) | 1999-03-17 |
Family
ID=9470183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95942113A Expired - Lifetime EP0804659B1 (fr) | 1994-12-23 | 1995-12-07 | Couverture en zinc pour toiture |
Country Status (17)
Country | Link |
---|---|
EP (1) | EP0804659B1 (fr) |
JP (1) | JP3803778B2 (fr) |
CN (1) | CN1079476C (fr) |
AT (1) | ATE177810T1 (fr) |
AU (1) | AU4343096A (fr) |
CZ (1) | CZ287617B6 (fr) |
DE (1) | DE69508437T2 (fr) |
DK (1) | DK0804659T3 (fr) |
ES (1) | ES2133178T3 (fr) |
FR (1) | FR2728604A1 (fr) |
GR (1) | GR3030503T3 (fr) |
HK (1) | HK1008232A1 (fr) |
HU (1) | HU220542B1 (fr) |
NO (1) | NO310118B1 (fr) |
PL (1) | PL320788A1 (fr) |
SK (1) | SK284822B6 (fr) |
WO (1) | WO1996020320A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001018321A1 (fr) * | 1999-09-02 | 2001-03-15 | Nanogate Gmbh | Materiau de construction expose aux intemperies pour toits, en particulier tuile, ou bien autres materiaux de construction pour toits lisses ou poreux et/ou microstructures |
EP1460196A1 (fr) * | 2003-03-21 | 2004-09-22 | Icopal A/S | Elément de toiture en tôle profilée |
CN102409810A (zh) * | 2011-12-07 | 2012-04-11 | 常熟市东涛金属复合材料有限公司 | 一种复合金属瓦 |
ES2544006B2 (es) * | 2015-03-31 | 2016-01-12 | Asturiana De Laminados, S.A. | Productos laminados basados en zinc y utilización de los mismos |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH634120A5 (en) * | 1979-03-01 | 1983-01-14 | Neomat Ag | Process for surface coating a roof snow guard |
GB2065155B (en) * | 1979-12-17 | 1984-02-29 | Toyo Kohan Co Ltd | Coated or laminated metal sheet for use as a building material |
IT8123129V0 (it) * | 1981-10-06 | 1981-10-06 | Fiorio Guido | Elemento di copertura per tetti di edifici. |
DE3444669A1 (de) * | 1984-12-07 | 1986-06-12 | Karl 6920 Sinsheim Serwane | Deckung fuer daecher, gebaeudefassaden u.a. |
FR2650319B1 (fr) * | 1989-07-26 | 1991-11-08 | Vieille Montagne France Sa | Couverture metallique pour toiture et supports pour une telle couverture |
DE4014711A1 (de) * | 1990-05-08 | 1990-11-29 | Gerhard Fabritz | Dachdeckungselement |
-
1994
- 1994-12-23 FR FR9415568A patent/FR2728604A1/fr active Granted
-
1995
- 1995-12-07 ES ES95942113T patent/ES2133178T3/es not_active Expired - Lifetime
- 1995-12-07 DK DK95942113T patent/DK0804659T3/da active
- 1995-12-07 HU HU9702105A patent/HU220542B1/hu not_active IP Right Cessation
- 1995-12-07 DE DE69508437T patent/DE69508437T2/de not_active Expired - Lifetime
- 1995-12-07 EP EP95942113A patent/EP0804659B1/fr not_active Expired - Lifetime
- 1995-12-07 AU AU43430/96A patent/AU4343096A/en not_active Abandoned
- 1995-12-07 JP JP52015196A patent/JP3803778B2/ja not_active Expired - Fee Related
- 1995-12-07 CN CN95197622A patent/CN1079476C/zh not_active Expired - Lifetime
- 1995-12-07 SK SK822-97A patent/SK284822B6/sk not_active IP Right Cessation
- 1995-12-07 AT AT95942113T patent/ATE177810T1/de active
- 1995-12-07 PL PL95320788A patent/PL320788A1/xx unknown
- 1995-12-07 WO PCT/EP1995/004886 patent/WO1996020320A1/fr active IP Right Grant
- 1995-12-07 CZ CZ19971949A patent/CZ287617B6/cs not_active IP Right Cessation
-
1997
- 1997-06-20 NO NO19972918A patent/NO310118B1/no not_active IP Right Cessation
-
1998
- 1998-07-16 HK HK98109207A patent/HK1008232A1/xx not_active IP Right Cessation
-
1999
- 1999-06-10 GR GR990401578T patent/GR3030503T3/el unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9620320A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1996020320A1 (fr) | 1996-07-04 |
DE69508437D1 (de) | 1999-04-22 |
FR2728604A1 (fr) | 1996-06-28 |
SK82297A3 (en) | 1998-02-04 |
EP0804659B1 (fr) | 1999-03-17 |
NO972918D0 (no) | 1997-06-20 |
GR3030503T3 (en) | 1999-10-29 |
CZ287617B6 (en) | 2001-01-17 |
DK0804659T3 (da) | 1999-10-11 |
SK284822B6 (sk) | 2005-12-01 |
FR2728604B1 (fr) | 1997-02-21 |
NO972918L (no) | 1997-08-25 |
HK1008232A1 (en) | 1999-05-07 |
PL320788A1 (en) | 1997-10-27 |
ES2133178T3 (es) | 1999-09-01 |
AU4343096A (en) | 1996-07-19 |
HU220542B1 (hu) | 2002-03-28 |
JP3803778B2 (ja) | 2006-08-02 |
DE69508437T2 (de) | 1999-10-28 |
JPH11503500A (ja) | 1999-03-26 |
CN1175297A (zh) | 1998-03-04 |
CN1079476C (zh) | 2002-02-20 |
CZ194997A3 (en) | 1997-11-12 |
HUT77267A (hu) | 1998-03-02 |
NO310118B1 (no) | 2001-05-21 |
ATE177810T1 (de) | 1999-04-15 |
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