EP0466685A1 - Revêtement de bâtiments et méthode pour sa réalisation - Google Patents

Revêtement de bâtiments et méthode pour sa réalisation Download PDF

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Publication number
EP0466685A1
EP0466685A1 EP91890151A EP91890151A EP0466685A1 EP 0466685 A1 EP0466685 A1 EP 0466685A1 EP 91890151 A EP91890151 A EP 91890151A EP 91890151 A EP91890151 A EP 91890151A EP 0466685 A1 EP0466685 A1 EP 0466685A1
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EP
European Patent Office
Prior art keywords
layer
cladding
plaster
elements
joints
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Granted
Application number
EP91890151A
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German (de)
English (en)
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EP0466685B1 (fr
Inventor
Erwin Reinisch
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0296—Repairing or restoring facades

Definitions

  • the invention relates to a cladding, in particular facade cladding, for buildings or the like.
  • a cladding in particular facade cladding, for buildings or the like.
  • Cladding elements arranged side by side or one above the other, optionally connected to one another in a form-fitting manner, with recesses, in particular joints, and provided with an outer coating.
  • cladding elements e.g. Wall, ceiling, soffit panels and profiles, which have, for example at right angles to a visible surface wall, parallel legs aligned to each other.
  • the elements are supported by brackets from a surface, wall or the like. kept at a distance and it has become common to place an insulation layer between the surface of the building and the cladding panels, e.g. to be arranged on a mineral fiber or foam plastic basis, where there may also be spaces for rear ventilation.
  • Such elements are usually used in only a few different, adapted, standardized shapes and sizes.
  • the invention has set itself the task of maintaining a cladding for buildings while maintaining all the advantages of the cladding systems described, such as simple assembly, repair, problem-free installation of insulation layers and ventilation, smooth and clean appearance and easier cleaning which avoids the disadvantages described above, and which is particularly able to meet the wishes and ideas of the owners of masonry and plastered buildings on the one hand and authorities, tourism and environmental protection organizations in terms of building ensemble protection on the other hand to a high degree.
  • the subject of the present invention is a cladding, in particular facade cladding, for buildings or the like, with a multiplicity of individual, on an internal, optionally covered with an insulating and / or insulating layer, supporting structure via fastening and / or Carrier elements bonded to the same, next to and / or one above the other, optionally optionally positively connected, and having an outer coating between recesses, in particular joints, provided with an outer coating, wherein in the said recesses, in particular joints, between the covering elements, optionally with whose outer surface is arranged essentially flush, joint seal, which is essentially characterized in that the cladding elements, preferably formed with a metallic material, and one in the recesses, in particular joints, between the cladding elements Filled, preferably filled joint filler, optionally with the interposition of a, preferably corrosion-inhibiting, primer or primer layer, essentially over the entire surface with its outward-facing surface with a carrier layer in a, preferably the same composition as the joints
  • the invention is based, on the one hand, on the knowledge, based on corresponding investigations, that in the case of cladding with elements made of materials with a not insignificant thermal expansion behavior, the joints between the cladding elements are bridged with real fillers and, on the other hand, a structure clad as described is then so covered with a high level of plaster Can be provided that it cannot be distinguished from a conventional, bricked building with an external plaster, if necessary provided with a conventional thermal insulation layer, for example based on styrofoam.
  • the joint filler for example formed with an adhesive or the subsequent plaster base in conjunction with the reinforcing fabric or fleece integrated into it, fulfills the task associated with cladding -Elements of the façade system formed to absorb internal and external forces without damage via the composite, i.e. to perform a compensatory function.
  • joints of up to 2 cm in width can be bridged with a fully non-positive and material connection to the coating base.
  • the primer layer serves to further improve the adhesion between the joint filling, the plaster base and the top plaster layer.
  • the top plaster takes on the task of weather protection and the architectural design of the facade through coloring and plaster structure.
  • the joint fillers which at least initially have an elastoplastic or plastoelastic nature, the plaster base materials themselves, the primers and plasters are usually advantageously bonded with synthetic resin, with dispersions based on acrylates, particularly styrene-acrylate dispersions, being particularly preferred.
  • the joint-filling adhesive and base materials of the plaster base layer which act as adhesive bridges and compensate for expansion, are commercially available per se - which is particularly advantageous for economic reasons - and contain, in addition to the copolymers, minerals such as lime, magnesium-aluminum-silicates, quartz powder, but also extenders , such as cellulose derivatives for consistency adjustment. Contents of cement clinker or cement help on the one hand with the alkaline position and on the other hand are capable of an adsorbing reaction of a physical and chemical nature with water.
  • the cladding elements are coated with a metallic material based on aluminum or iron, which is preferably protected against corrosion by zinc. are formed.
  • the surfaces of the metal to be plastered should be cleaned of substances which have the character of a separating agent, such as dirt, dust, grease, silicone or the like.
  • a separating agent such as dirt, dust, grease, silicone or the like.
  • a type of cladding according to the invention is preferred in which it is provided that the joint filler in the recesses, in particular joints, between the cladding elements is formed with an at least partially hardened, synthetic resin-bonded adhesive, preferably based on acrylic resins, in whose matrix, based on the total mass, 5 to 15% by weight, preferably 7 to 12% by weight, of cement, preferably Portland cement, is distributed.
  • the hardened joint filling compound since it is adhesively connected to the cladding elements, forms a type of grid-like stiffening frame, which increases the structural strength of the cladding and thus forms a particularly solid plaster base.
  • the joint filler is designed to be elastic or elastoplastic to compensate for expansion.
  • plaster base layer - preferably integrally - firmly bonded to the cladding elements and the outside of the joint filler is formed with an at least partially hardened, resin-bonded base material, possibly with the exclusion of cement in the matrix, a particularly intimate inner bond can be made between Achieve reinforcement mesh and synthetic resin matrix that will certainly prevent the fleece or fabric fibers from detaching from the matrix.
  • this also ensures the composite of the flat support layer with the joint filling that increases the structural strength.
  • the plaster base composition is formed on the basis of acrylic resins.
  • the reinforcement mesh or mesh has a mesh size between 2 mm and 6 cm, in particular from about 1 to about 4 cm .
  • the width of the webs can e.g. 1 m.
  • the carrier layer has a total thickness of 0.05 to 0.5 cm.
  • a variant of the new cladding which enhances the aesthetics of the appearance consists in coordinating the primer layer between the carrier layer and the outer cover layer, in particular a plaster layer, with an at least partially cured layer to match the respective color of the cover layer, in particular the plaster layer to form tinted or pigmented, preferably synthetic resin-bonded, primer mass.
  • cover layer is formed with an at least partially hardened, synthetic resin-bonded structural plaster, preferably with 2-5 mm, preferably with 2-3 mm layer thickness.
  • the invention furthermore relates to a method for cladding buildings or the like, in particular their facades, a plurality of individual, laterally arranged, optionally positively connected, having recesses, in particular joints, having an external Coating provided cladding elements via fastening elements to an internal, possibly covered with an insulation and / or insulating layer, supporting structure, and in the joints between the cladding elements, a joint seal, optionally arranged with its outer surface being essentially flush, in particular for Manufacture of cladding, as have been explained in various advantageous embodiments.
  • a hardening joint filler paste which connects to them and, if appropriate, with the outer surfaces the cladding elements are designed to be essentially flush, preferably filled, so that the outer surfaces of cladding elements and joint filling paste, if necessary after pre-hardening thereof - if necessary after applying an adhesion-promoting, preferably corrosion-inhibiting, primer or primer layer - is fully coated with a hardenable carrier layer paste, in which a flat, preferably embedding auxiliary openings, reinforcing fleece and / or mesh or fabric is pressed, in particular embedded, in the still pasty state, and finally au f the carrier layer formed in this way, if appropriate after pre-hardening the same, preferably after applying an adhesion-promoting intermediate or primer layer, is likewise applied essentially over the entire surface, in a manner known per se, in particular a
  • Labor economically and consolidating the bond can be a method of operation that provides that when using joint filling pastes or adhesives and plaster carrier pastes or adhesives of the same composition, a stable adhesive filling of the depressions, in particular joints, between the cladding elements and which is also adherent Coating of their outer surfaces, preferably by filling, is carried out simultaneously.
  • Claddings produced according to these processes in the various variants previously described in detail are characterized by high adhesive strength and the lowest tendency to crack formation under extreme temperature, weather and vibration conditions, high atmospheric humidity and impact resistance and are capable of, due to their high adaptability and Design variation range also to meet high aesthetic requirements.
  • the figure shows a horizontal section through a brickwork provided with the new, flush plaster cladding.
  • a (concrete) wall 1 is coated on its outside with an insulating material layer 4, which is penetrated by fastening elements 3 arranged in the concrete wall 1, with which, as a supporting element, hanging lugs 32, here vertically spaced support profile strips 31 are mounted, in which, in turn, 5 individual profile cladding elements 6 are suspended with their main extension surfaces arranged parallel and at a distance from the concrete wall 1 to form (not visible) rear ventilation spaces.
  • the individual cladding elements 6 have on their edges, if necessary, interlocking interlocking and cooperating with the lugs 32 of the profile strip 31 extensions 61, whereby joint-like depressions 62 are formed between the elements.
  • the new cladding system essentially consists in that the joint depressions 62 are preferably adhesively connected to the extension parts of the cladding elements 6, which are offset from the surface and extend inward therefrom - with hardened, preferably cement-containing, plastic-bound joint filler 71 filled, in particular filled out, which is essentially flush with the outer surface 60 of the cladding elements 6.
  • a support layer 70 which in the embodiment shown is formed with a reinforcing fabric 72 embedded, for example, on the basis of glass fibers, embedded in a hardened plastic support 73, is firmly bonded over the entire surface to the covering surface formed in this way.
  • the outside of the carrier layer 70 is coated with a layer-promoting, adhesion-promoting, thin Layer coated from a synthetic resin-bonded primer 74, on which a top plaster layer 75 of any type of structure, pigmentation and filling is finally arranged, which is advantageously formed with a synthetic resin-containing plaster.
  • Adhesive is understood here to mean a connection which results in permanent adhesion or permanent gluing or a similarly good material connection.
  • Plaster carrier paste Pasty, resin-bonded special adhesive. For processing with the roll, cement-free, ready for processing.
  • Pigmented, synthetic resin-bound primer as a primer.
  • Resin-bonded structural plaster in 2 to 3 mm layer thickness and different structures and colors.
  • the facade panels to be coated which adjoin one another with joints and have the dimensions 500 mm by 1000 mm, were freed of adhesion-reducing substances, cleaned and dried. Then the plaster base paste is applied undiluted with the roller in the width of the web (1 m) of the reinforcement fleece used, then the reinforcement fleece is embedded on the basis of mineral wool and smoothed with a stainless steel trowel.
  • the reinforcement fleece is overlapped in the joint area by about 10 cm and preferably horizontally.
  • Coarse depressions are leveled with the carrier paste, which is also joint filling here.
  • a primer After thorough drying of the carrier and filling paste on the surfaces of the cladding elements and in their joints (depending on the weather, however at the earliest 12 hours after application) a primer, diluted to about 10% with water, tinted to the color of the subsequent plaster coating, applied with a brush or roller. After a drying time of at least 12 hours (depending on the weather), the top coat is then applied.
  • finishing plaster is adjusted to a consistency suitable for smoothing trowels with about 3 - 5% water and applied with a stainless steel smoothing trowel, removed in grain thickness and structured or rubbed off with a plastic smoothing trowel while still wet.
  • Processing conditions were generally observed, which in particular avoid working in the blazing sun or under the influence of rain and also the risk of frost, i.e. in particular processing and substrate temperatures of at least + 7 ° C.
  • the exposure to condensation was tested in accordance with DIN 50017 at + 40 ° C over a period of 20 days. It was carried out on unaged and on, through seven-day storage at + 70 ° C, so extremely extremely artificially aged samples.
  • the test panels were assessed visually and a cross-cut test in accordance with DIN 53 151 was carried out at a cutting distance of 3 mm.
  • the synthetic resin plaster coating on the aluminum siding panels is, due to the laboratory tests carried out, ideally suited for the intended application as facade cladding.
  • the weathering cycle given above corresponds to the maximum thermal load of cover layers with a gray hue that occurs in continental climates.
  • ⁇ t 35 - 50 ° C with a shock-like cooling of the top layer
  • the test stand consists of a test frame in which the "test wall” is built upright and an irrigation device connected to the test frame, which enables a closed water film over the test area.
  • the thermal load on the test area is caused by IR emitters, parts of the test area were frosted with a transportable and height-adjustable cooling device. The timing of the temperature load and the irrigation was carried out automatically.
  • module strips were aligned in the mounting brackets and fastened with 2 mounting screws 4.8 x 13 to each mounting bracket.
  • the cement-free plaster base paste in which a reinforcing fleece was embedded, was used on the lower half of the test wall surface.
  • test area was then coated with a primer and the top coat applied, as described above under ai).
  • the test wall was installed in the large-scale weather facility on 4.1.1990.
  • the weathering test was started on January 8, 1990, when the top layer was irradiated at + 45 ° C.
  • thermocouples type K, no. Cr-Ni
  • a measuring amplifier to an accuracy of + 0.1 ° C.
  • the thermal changes in length of the facade system were measured over the entire length of the test wall. They were determined in the plane of the profiles using precision dial gauges (measuring accuracy 0.01 mm).
  • the measurement of the thermally induced changes in length was carried out over a measuring length of 250 mm using a Huggenberger setting strain gauge (accuracy 0.001 mm)
  • the samples were sealed on the side, back and 5 mm into the plastered area with an epoxy resin coating. After hardening, the samples with the plastered surface were placed 5 mm deep in distilled water to determine the water absorption. Water absorption was determined every hour until 8 h and after 24 h.
  • a freeze-thaw cycle included 16 h storage in a water bath (+ 20 ° C) and subsequent storage in a temperature cabinet at -20 ° C.
  • Adhesive tie rods made of steel (10 cm edge length) were glued to the top layers and plaster substrates with epoxy glue. After the adhesive had hardened, the cover layers were cut along the edges of the adhesive tie anchors to the plaster base.
  • the adhesive tensile strength was determined in a 20 kN universal testing machine (Mohr & Federhaff) measuring range 0 to 20 kN, quality class I, with the interposition of a double ball joint.
  • Specimens were made for the tensile tests.
  • the cleaning system was applied to polystyrene particle foam panels. After sufficient hardening for more than 28 days, the samples were cut to 380 mm x 50 mm and the particle foam was removed.
  • the samples were stored at normal climate 20/65 until they were tested.
  • the test was carried out in a 20 kN tensile testing machine (Walter & Bai), measuring range 0 to 2 kN.
  • the strain measurement was carried out using a double, electronic contact strain gauge HEM-DD1 with a measuring length of 100 mm.
  • samples No. 5 to No. 8 4 pieces of 50 mm wide samples (samples No. 5 to No. 8) were cut out of the test wall.
  • the samples were vertical, reached over the planum profile joints and were reinforced to prevent deformation due to the application of 5 mm thick steel strips on the inside of the facade system.
  • a bubble began to form on a single sample of the AP cleaning system after approx. 18 freeze-thaw cycles. After the damaged area was cut open, a separation was found in the level of the reinforcement fleece. It turned out that this area of reinforcement fleece was not soaked by the plaster base paste. No changes were discernible in the other surface areas after 25 freeze-thaw cycles.
  • the plaster structure took up 343 g / m2 of water after 8 h and 526 g / m2 of water after 24 h.
  • the adhesive strength value for the samples taken from the test area was 0.807 N / mm2.
  • the plaster system absorbs more than 7.25 joules of impact energy without causing cracks in the plaster or spalling. At 7.25 joules of impact energy, dome impressions with a dome depth of approx. 1 mm remained.
  • the large-area thin-plaster coating of the galvanized planum normal profiles of the rear-ventilated facade system, as described, also showed in the large-scale weather test for the largest temperature difference of ⁇ t ⁇ 55 ° C, which was the basis for the investigations, a completely crack-free, optically perfect facade skin even on the horizontal joints of the profiles.
  • Pasty synthetic resin-bound special adhesive, to which 10% PZ 275 must be added before processing. For processing with a trowel.
  • Pigmented, synthetic resin-bound primer as a primer.
  • Resin-bonded structural plaster in 2 to 3 mm layer thickness and different structures and colors.
  • the metal surface to be coated must be dry, clean and free of separating substances.
  • 10% PZ 275 (Portland cement) is added to the plaster carrier adhesive and the mixture was carefully mixed with a stirrer.
  • the carrier paste prepared in this way was spread with a stainless steel trowel in the width of the reinforcement fabric (1.0m), the reinforcement fabric was embedded and the surface was leveled so that the fabric was completely covered.
  • the reinforcement mesh was overlapped 10 cm in the joint area and laid horizontally.
  • the primer composition was diluted to about 10% with water, tinted to the color of the subsequent plaster coating, applied with a brush or roller.
  • the top coat was applied.
  • This surface plaster was adjusted to a consistency suitable for smoothing trowels with approx. 3 - 5% water and applied with a stainless steel smoothing trowel, then removed in grain size (approx. 3 mm) and structured or rubbed off while wet with a plastic smoothing trowel.
  • the processing and substrate temperature was at least + 7 ° C.
  • the plaster structure took up 299 g / m2 of water after 8 h and 440 g / m2 of water after 24 h.
  • the adhesive tensile strength values of the samples from the test area were 1.121 N / mm2.
  • the plaster system absorbs more than 7.25 joules of impact energy without causing cracks in the plaster or spalling. At 7.25 joules of impact energy, dome impressions with a dome depth of approx. 1 mm remained.
  • the plaster coating AK thus showed a somewhat higher load capacity than the coating AP according to a) or aii).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Finishing Walls (AREA)
EP91890151A 1990-07-12 1991-07-12 Revêtement de bâtiments et méthode pour sa réalisation Expired - Lifetime EP0466685B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0148490A AT398105B (de) 1990-07-12 1990-07-12 Verkleidung von bauwerken od.dgl. und verfahren zu ihrer herstellung
AT1484/90 1990-07-12

Publications (2)

Publication Number Publication Date
EP0466685A1 true EP0466685A1 (fr) 1992-01-15
EP0466685B1 EP0466685B1 (fr) 1994-05-18

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EP91890151A Expired - Lifetime EP0466685B1 (fr) 1990-07-12 1991-07-12 Revêtement de bâtiments et méthode pour sa réalisation

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EP (1) EP0466685B1 (fr)
AT (1) AT398105B (fr)
DE (1) DE59101648D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749033A1 (fr) * 1996-05-24 1997-11-28 Soc D Tuyaux Bonna Procede et realisation d'un revetement a base de liant hydraulique sur une paroi en acier ou materiau similaire, et produit obtenu
EP0968977A1 (fr) * 1998-06-22 2000-01-05 Alois Mauhart Masse de remplissage pour remplir fissures ou joints des revêtements routieres
EP1900511A1 (fr) 2006-09-15 2008-03-19 Ficotec Veredelungs GmbH Procédé de fabrication d'une couche dotée d'une couche de revêtement et d'un support et couche dotée d'une couche de revêtement et support

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928323A1 (de) * 1979-07-13 1981-01-29 Rethan Ag Verfahren zum beschichten von aluminiumpaneels mit einem fassadendeckputz
DE3501740A1 (de) * 1985-01-19 1986-07-24 Herbert 7530 Pforzheim Heinemann Verfahren zum beschichten von paneelen, sowie paneele zum durchfuehren des verfahrens
DE8709468U1 (fr) * 1987-07-09 1987-10-22 M. Wild Gmbh, 8481 Pleystein, De
DE3712382A1 (de) * 1987-04-11 1988-10-27 Rigips Gmbh Verfahren und masse zum verspachteln der fuge von gegeneinandergestossenen gipskartonplatten
DE8902502U1 (fr) * 1989-03-02 1989-06-29 Dettmering, Kurt, 3100 Celle, De
DE8910669U1 (fr) * 1989-09-07 1989-10-26 Heinemann, Herbert, 7530 Pforzheim, De
DE3812706A1 (de) * 1988-04-16 1989-10-26 Karl Mayer Fassadenverkleidung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296325B (de) * 1966-11-03 1969-05-29 Krone Kg Gebaeude-Aussenwandverkleidung aus Waermedaemm-Bauplatten
AT337953B (de) * 1971-06-24 1977-07-25 Alcan Aluminiumwerke Tafel fur fassadenverkleidungen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928323A1 (de) * 1979-07-13 1981-01-29 Rethan Ag Verfahren zum beschichten von aluminiumpaneels mit einem fassadendeckputz
DE3501740A1 (de) * 1985-01-19 1986-07-24 Herbert 7530 Pforzheim Heinemann Verfahren zum beschichten von paneelen, sowie paneele zum durchfuehren des verfahrens
DE3712382A1 (de) * 1987-04-11 1988-10-27 Rigips Gmbh Verfahren und masse zum verspachteln der fuge von gegeneinandergestossenen gipskartonplatten
DE8709468U1 (fr) * 1987-07-09 1987-10-22 M. Wild Gmbh, 8481 Pleystein, De
DE3812706A1 (de) * 1988-04-16 1989-10-26 Karl Mayer Fassadenverkleidung
DE8902502U1 (fr) * 1989-03-02 1989-06-29 Dettmering, Kurt, 3100 Celle, De
DE8910669U1 (fr) * 1989-09-07 1989-10-26 Heinemann, Herbert, 7530 Pforzheim, De

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749033A1 (fr) * 1996-05-24 1997-11-28 Soc D Tuyaux Bonna Procede et realisation d'un revetement a base de liant hydraulique sur une paroi en acier ou materiau similaire, et produit obtenu
WO1997045609A1 (fr) * 1996-05-24 1997-12-04 Bonna Sabla Procede de realisation d'un revetement a base de liant hydraulique sur une paroi en acier ou materiau similaire, et produit obtenu
EP0968977A1 (fr) * 1998-06-22 2000-01-05 Alois Mauhart Masse de remplissage pour remplir fissures ou joints des revêtements routieres
EP1900511A1 (fr) 2006-09-15 2008-03-19 Ficotec Veredelungs GmbH Procédé de fabrication d'une couche dotée d'une couche de revêtement et d'un support et couche dotée d'une couche de revêtement et support

Also Published As

Publication number Publication date
EP0466685B1 (fr) 1994-05-18
ATA148490A (de) 1994-01-15
DE59101648D1 (de) 1994-06-23
AT398105B (de) 1994-09-26

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