EP0936321A2 - Elément isolant - Google Patents

Elément isolant Download PDF

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Publication number
EP0936321A2
EP0936321A2 EP99100766A EP99100766A EP0936321A2 EP 0936321 A2 EP0936321 A2 EP 0936321A2 EP 99100766 A EP99100766 A EP 99100766A EP 99100766 A EP99100766 A EP 99100766A EP 0936321 A2 EP0936321 A2 EP 0936321A2
Authority
EP
European Patent Office
Prior art keywords
element according
insulating element
plate
mineral wool
shaped element
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
Application number
EP99100766A
Other languages
German (de)
English (en)
Other versions
EP0936321A3 (fr
EP0936321B1 (fr
Inventor
Gerd-Rüdiger Dr.-Ing. Klose
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.)
Deutsche Rockwool Mineralwoll GmbH and Co OHG
Original Assignee
Deutsche Rockwool Mineralwoll GmbH and Co OHG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7857961&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0936321(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE1998106454 external-priority patent/DE19806454C2/de
Application filed by Deutsche Rockwool Mineralwoll GmbH and Co OHG filed Critical Deutsche Rockwool Mineralwoll GmbH and Co OHG
Publication of EP0936321A2 publication Critical patent/EP0936321A2/fr
Publication of EP0936321A3 publication Critical patent/EP0936321A3/fr
Application granted granted Critical
Publication of EP0936321B1 publication Critical patent/EP0936321B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements
    • E04B1/80—Heat insulating elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762—Exterior insulation of exterior walls
    • 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
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/049—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres completely or partially of insulating material, e.g. cellular concrete or foamed plaster

Definitions

  • the invention relates to an insulation element, in particular for thermal insulation of building facades and for use in composite thermal insulation systems, consisting of a plate-shaped element made of aerated concrete.
  • Insulation elements are known in a variety of designs. You can out Mineral fibers, rigid foams exist and single-layer or multi-layer Have structure. Such insulation elements are, for example used for thermal insulation of building facades.
  • the insulation elements are part of thermal insulation composite systems.
  • the Insulation elements glued to a supporting surface and if necessary additionally secured by insulation holder with inserted dowel.
  • systems are known which are made exclusively by insulation holders are fixed.
  • the insulation layer held by rails which cut into the side surfaces Grip grooves. The rails are screwed in and into the load-bearing surface recessed dowels held.
  • a two-layer coating is applied to the surface of the insulation elements
  • Plaster applied which consists of a base plaster, in the one Reinforcing fabric is embedded.
  • There is a finishing coat on the base coat applied which represents the outer surface of the facade insulation.
  • the fabric can be installed in the base plaster throughout.
  • polystyrene rigid foam panels are used as insulation elements. These rigid foam panels have a low bulk density between 15 and 30 kg / m 3 , so that this results in a low weight, which simplifies the processing of these insulation elements.
  • these polystyrene rigid foam panels have mechanical strength properties that provide the necessary transverse tensile strength and the necessary shear modulus in sufficient size for thermal insulation composite systems.
  • the polystyrene rigid foam panels are stable even when exposed to moisture and essentially unchangeable.
  • thermal insulation composite systems with polystyrene rigid foam panels are combustible, so that they are only classified as flame-retardant in building material class B1 according to DIN 4102, Part 1.
  • Thermal insulation composite systems based on polystyrene rigid foam panels can burn relatively easily with the usual insulation thicknesses, in particular of more than 8 cm, from the normally unsecured openings (windows, doors) in the insulated wall surfaces or from the base. Nevertheless, approx. 90% of the thermal insulation composite systems created annually are based on polystyrene rigid foam.
  • Non-combustible mineral wool insulation boards have proven to be an alternative to polystyrene rigid foam boards.
  • the mineral wool insulation panels Compared to polystyrene hard foam panels, however, the mineral wool insulation panels have lower strength properties, so that the mineral wool insulation panels must be processed and reinforced accordingly.
  • plates made of calcium silicate, fiber cement or aerated concrete, for example, are glued to the mineral wool insulation layer or fastened with insulation holders.
  • Aerated concrete is admittedly an insulating layer suitable for composite thermal insulation systems, since, for example, the thermal coefficient of linear expansion is low and therefore cannot cause cracking in the plasters, the usual bulk densities of more than 400 kg / m 3 and the thermal conductivity of more than essentially 0.10 W / mK make the processing of such aerated concrete panels cumbersome, since extremely thick insulation layers have to be applied in order to achieve adequate thermal insulation.
  • these thick layers of insulation lead to a high weight of the thermal insulation composite system, which is disadvantageous on the one hand during processing and on the other hand causes high stress on the connecting means between the facade and the thermal insulation panels.
  • the aerated concrete slabs have the disadvantage that they only have one have low breaking strength, so that edges break off easily and the surfaces are not resistant to abrasion. At the construction sites prevailing working conditions are therefore large quantities of cellular concrete insulation panels damaged, which is then disadvantageous for the composite thermal insulation system impact if they have damaged insulation boards installed become.
  • the invention has for its object to develop an insulating element of the generic type such that the disadvantages described above can be avoided.
  • the solution to this problem provides for an insulation element of the generic type that the plate-shaped element made of aerated concrete with a bulk density of 75 to 250 kg / m 3 and a thermal conductivity between 0.030 to 0.050 W / mK, whose at least one large surface with a strength-increasing and adhesive coating is provided.
  • Such an insulation element is particularly suitable for composite thermal insulation systems suitable, the relatively low bulk density a simplification the processing of the insulation elements and the requirements the adherence of the lanyard to be applied to the facade decreased. Furthermore, the strength-increasing and adhesion-promoting Coating on at least a large surface of the plate Elementes the insulation element so strengthened that a higher abrasion resistance and a higher breaking strength of the edges of the insulation element be achieved.
  • the plate-shaped element made of aerated concrete has a bulk density of 100 to 150 kg / m 3 .
  • Suitable coatings can be made from plastic-containing construction adhesives, for example on the basis of hydraulically setting cements consist. Resin plasters are also suitable.
  • the surfaces of the plate-shaped element are included Deep reasons based on acrylates, butadiene-styrene copolymers and similar saponification-resistant plastic dispersions or solutions stabilized Because these substances are negative They may have an impact on the building material class covered with layers of adhesive and mortar.
  • the thickness of the coating is kept as low as possible for reasons of weight. It has proven advantageous to coat with a thickness of less than 5 mm.
  • the coating can consist of silica, the so-called Ormocere is applied via nanotechnology and essentially solidifying in the areas below the surface works. Furthermore, they are coated with silica sol, water or aluminum phosphates bound mixtures of minerals doped with plastics such as quartz sand, aluminum hydroxide and the like. Here is just to ensure that minerals are excluded that are under Soak up moisture.
  • Lattice fabric for example made of glass fibers, aramid or Carbon fibers, cellulose fibers or the like on one or both large surfaces of the plate-shaped element embedded in the coating or glued on with their help.
  • the insulation element has recesses, in particular Holes for the insulation holder.
  • These holes are, for example according to one in the admission requirements for the Thermal insulation system or dowel pattern matched to the board size arranged.
  • Usual insulation holders are in the transition from the shaft extended to the flat holding plate frustoconical, so that it turns out to be advantageous has proven that the bores are also frustoconically enlarged, so that notch stresses when inserting the insulation holder be avoided.
  • the holes also serve as a drilling aid, so that When drilling on the construction site, the holes are widened by inclined Starting and subsequent correction can be avoided.
  • the plate-shaped elements made of aerated concrete are indeed high Dimensional accuracy can be produced, but cannot necessarily avoid laying joints.
  • Such installation joints are usually according to the state the technology for polystyrene rigid foam panels with polyurethane foam closed near the surface.
  • this procedure represents an additional one Step that is time-consuming and therefore costly.
  • Around Avoiding disadvantages is with the insulation elements according to the invention provided that on at least one narrow side of the plate-shaped Element of a mineral wool strip is arranged.
  • the mineral wool strip preferably consists of binders Individual fibers that are essentially parallel to the surface normal of the large surfaces of the plate-shaped element, so that the Mineral wool stripes in a direction perpendicular to the surface normal of the large surfaces is compressible and seal the corresponding joints can.
  • a material thickness between 5 and 50 mm, preferably less than 15 mm has proven to be advantageous for mineral wool strips.
  • Thermal insulation composite systems with the insulation elements according to the invention can also have a rail system, which the insulation elements stick to the facade.
  • a rail system which the insulation elements stick to the facade.
  • at least two, in particular parallel narrow sides of the have plate-shaped elements grooves, which are preferably sawing in the plate-shaped element are introduced. These grooves can then be used accordingly trained elements of the rail system intervene to the To hold insulation elements on the facade.
  • the grooves are preferably 1 to 3 mm high and 5 to 20 mm wide.
  • a compressible mineral wool insulation board or a mineral wool insulation felt is arranged.
  • This configuration has been particularly useful when using the invention Insulation boards in composite thermal insulation systems with rail systems reinforced.
  • the insulation boards are fastened with rails in usually on uneven surfaces, whereby these unevenness through the Rails or washers are balanced under the rails. With such conditions, the insulation boards are within a certain range Distance from the facade, so that between the facade and the Insulation boards form a cavity. Such a cavity or several such cavities allow air to circulate so that a clear one Reduction in the thermal resistance is recorded.
  • the mineral wool insulation board or the mineral wool insulation felt with a material thickness of 10 to 50 mm to train.
  • the cavities are then maximally closed, if the mineral wool insulation board or the mineral wool insulation felt the Cover the entire surface of the plate-shaped element.
  • the mineral wool insulation board or the mineral wool insulation felt over part of the surface is applied, with a strip-like configuration of this Has proven beneficial.
  • These are preferably mineral wool strips all around or parallel to the long sides or as a single Sealing strips arranged.
  • the adhesive element preferably forms in the hardened state a spacer. This spacer can withstand pressure and prevents that the insulation board breaks through under external pressure. Farther the spacer increases in conjunction with an insulation holder Stability of the thermal composite system.
  • FIG 1 is an insulation element 1 for thermal insulation of building facades and shown for use in composite thermal insulation systems.
  • the insulation element 1 consists of a plate-shaped element 2 made of aerated concrete with a bulk density of 100 kg / m 3 and a thermal conductivity of 0.040 W / mK.
  • a strength-increasing and adhesion-promoting coating 3 is arranged on the two large surfaces of the element 2.
  • the coating can consist of plastic-containing construction adhesives, mortars, for example on the basis of hydraulically setting cements and / or synthetic resin plasters.
  • the insulation element 1 has four bores 4, which are arranged in the corner areas of the insulation element 1. This Bores 4 are used to hold insulation holders around the insulation element 1 to attach to the facade of the building.
  • the holes 4 are arranged in a dowel pattern matched to the plate size.
  • mineral wool strips 6 consisting of mineral fibers attached on three of the four narrow sides 5 of element 2 there are mineral wool strips 6, consisting of mineral fibers attached.
  • the mineral wool stripes have here a 5 different material thickness on each narrow side and serve the joint compensation when laying several insulation elements 1 side by side.
  • the mineral fibers of the mineral wool strips 6 are parallel to the narrow sides 5 or parallel to the surface normal of the element 2 aligned so that the mineral wool strips 6 towards the insulation element 1 compressible are trained.
  • Insulating element 1 also consists of plate-shaped element 2 made of aerated concrete with the characteristics specified above. Farther it can be seen that also in the embodiment according to FIG. 2 the element 2 has a coating 3 on both large surfaces.
  • Insulation holder provided, which are not shown in detail and in holes 4 can be used.
  • the holes 4 are frustoconical at one end expanding trained so that appropriately trained Insulation holder can be used.
  • the surface 7 of the element 2 facing the facade is full-surface a mineral wool plate 8 glued on.
  • the mineral wool plate 8 is in Direction towards the surface 7 designed compressible.
  • FIG. 3 shows a further embodiment of an insulation element 1, which in turn consists of a plate-shaped element 2 with coatings arranged on both sides of the large surfaces 3 exists.
  • an insulation element 1 which in turn consists of a plate-shaped element 2 with coatings arranged on both sides of the large surfaces 3 exists.
  • the longitudinal edges of the element 2 are continuous running grooves 11 sawn, the inclusion of a leg one Fastening rail serve which fastening rail is not shown in detail and is screwed to the facade of the building to be insulated becomes.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Bipolar Transistors (AREA)
  • Laminated Bodies (AREA)
EP99100766A 1998-02-17 1999-01-16 Elément isolant Revoked EP0936321B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19806454 1998-02-17
DE1998106454 DE19806454C2 (de) 1998-02-17 1998-02-17 Dämmstoffelement

Publications (3)

Publication Number Publication Date
EP0936321A2 true EP0936321A2 (fr) 1999-08-18
EP0936321A3 EP0936321A3 (fr) 2001-07-11
EP0936321B1 EP0936321B1 (fr) 2003-12-17

Family

ID=7857961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99100766A Revoked EP0936321B1 (fr) 1998-02-17 1999-01-16 Elément isolant

Country Status (3)

Country Link
EP (1) EP0936321B1 (fr)
AT (1) ATE256801T1 (fr)
DE (2) DE19860993C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1455027A1 (fr) * 2003-03-03 2004-09-08 Josef Hain GmbH & Co. KG Elément d'isolation thermique
WO2006032440A1 (fr) * 2004-09-25 2006-03-30 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Element en materiau isolant en fibres minerales et procede de production associe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006028841B4 (de) * 2005-06-21 2014-05-15 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Dämmanordnung und Verfahren zur Herstellung eines Dämmstoffstreifens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1950946A1 (de) * 1969-10-09 1971-04-29 Dargie Robert George Bauelement,z.B. Bauplatte,und Verfahren zu seiner bzw. ihrer Herstellung
DE2854228C2 (de) * 1978-12-15 1983-11-24 Ytong AG, 8000 München Mehrschichtenplatte aus Gasbeton sowie Verfahren zu ihrer Herstellung
DE3035242A1 (de) * 1980-09-18 1982-03-25 Karl Heinz 3353 Bad Gandersheim Vahlbrauk Bauplatte fuer die erstellung von bauwerken
DE3415581A1 (de) * 1984-04-26 1985-11-07 Rheinhold & Mahla GmbH, 8000 München Abschottung fuer einen doppelboden
DE3611835A1 (de) * 1985-04-12 1986-10-30 Dipl.-Ing. Fr. Bartram GmbH & Co KG, 2354 Hohenwestedt Verfahren zur herstellung eines wandelementes sowie regendichtes wandelement
IT232275Y1 (it) * 1993-10-19 1999-12-17 Seal Costruzioni S R L Pannello in cemento.

Non-Patent Citations (1)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1455027A1 (fr) * 2003-03-03 2004-09-08 Josef Hain GmbH & Co. KG Elément d'isolation thermique
WO2006032440A1 (fr) * 2004-09-25 2006-03-30 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Element en materiau isolant en fibres minerales et procede de production associe

Also Published As

Publication number Publication date
EP0936321A3 (fr) 2001-07-11
EP0936321B1 (fr) 2003-12-17
DE59908046D1 (de) 2004-01-29
DE19860993C2 (de) 2002-01-17
ATE256801T1 (de) 2004-01-15

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