EP2155979A2 - Élément d'isolation thermique comportant des canaux de ventilation - Google Patents

Élément d'isolation thermique comportant des canaux de ventilation

Info

Publication number
EP2155979A2
EP2155979A2 EP08758941A EP08758941A EP2155979A2 EP 2155979 A2 EP2155979 A2 EP 2155979A2 EP 08758941 A EP08758941 A EP 08758941A EP 08758941 A EP08758941 A EP 08758941A EP 2155979 A2 EP2155979 A2 EP 2155979A2
Authority
EP
European Patent Office
Prior art keywords
channels
building
wall
element according
thermal insulation
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
EP08758941A
Other languages
German (de)
English (en)
Other versions
EP2155979B1 (fr
Inventor
Gerd Hauser
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to SI200830391T priority Critical patent/SI2155979T1/sl
Priority to PL08758941T priority patent/PL2155979T3/pl
Publication of EP2155979A2 publication Critical patent/EP2155979A2/fr
Application granted granted Critical
Publication of EP2155979B1 publication Critical patent/EP2155979B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • E04B1/70—Drying or keeping dry, e.g. by air vents
    • E04B1/7069—Drying or keeping dry, e.g. by air vents by ventilating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49616—Structural member making

Definitions

  • the invention relates to an element for thermal insulation of a building.
  • the thermal insulation of a building takes place by the fact that on the outer wall of the building heat insulation elements are attached. This can often be done later.
  • the thermal renovation of exterior walls is usually done with thermal insulation systems, which has a outside wall mounted on the outside thermal insulation in the form of polystyrene foam boards.
  • thermal insulation systems which has a outside wall mounted on the outside thermal insulation in the form of polystyrene foam boards.
  • This required central ventilation systems can often not be realized in the building stock due to the usually present low room heights and the enormous space requirement of ventilation ducts.
  • the ventilation heat losses can not be reduced as efficiently as the transmission heat losses.
  • a subsequent accommodation of ventilation systems can be made sense only for buildings with high storey heights.
  • suspended ceilings are pulled in, in which the ventilation ducts are housed.
  • the storey heights for the subsequent retraction of suspended ceilings are not sufficient for the buildings that were built after the war. There so far only decentralized systems can be realized, providing a room by room supply
  • a starting point which is particularly suitable for retrofitting central ventilation systems, is the placement of ventilation ducts in the external insulation. If heat insulation is applied to the outside of the exterior wall as part of the thermal renovation of a building, then ventilation ducts for a central ventilation system can be accommodated in these ventilation ducts. Sporadically, metallic spiral ducts are used in on-site recesses in the external insulation. For the interior of buildings ventilation ducts made of polystyrene foam with circular inner and square outer cross-section are offered.
  • Object of the present invention is to provide an improved system for thermal insulation and ventilation of a building.
  • a particular plate-shaped element for thermal insulation of a building is proposed, which is provided for application to an outer wall of a building, wherein the element has channels that can serve as ventilation channels.
  • the element will be a plate-shaped element which is to be applied to a flat wall.
  • the element could also be round if it had to be applied to a round wall, for example.
  • the element is characterized by the fact that the channels are surrounded on all sides by the element, except for edge regions. That is, the channels are inside the elements and not at the edge. Consequently, the channels are not partially bounded by the outer wall.
  • the element can not surround the channels on all sides. Rather, the channels passing through the element are open at the end of an element so that air can flow from one element into the adjacent element.
  • the channels extend in individual regions of the element towards an edge of the element such that, when the element is applied to the outer wall, connections of the channels to the outer wall are formed at desired locations. These are those places where the air is led into or out of the building. At these points, a connection of the channels to the outer wall in spite of the aforementioned disadvantages is inevitable.
  • Such an arrangement of the channels has several advantages. Will the channels, as in the state of Technique known, partially surrounded by the outer wall, so is the sound in the
  • Ventilation ducts is present, transmitted through the outer wall into the building interior. This is obviously uncomfortable for the occupants or users of the building.
  • the sound in the ventilation ducts can either be due to flow noise or be carried by the rooms to be ventilated or vented as it were.
  • unpleasant-smelling gases or gas mixtures can escape from the outer wall, in particular in the case of a newly constructed outer wall. If the ventilation duct were to connect directly to the outer wall, then these unpleasant-smelling gases or gas mixtures would be able to reach the supply air in a higher concentration. The aforementioned disadvantages are easily avoided with the plate-shaped element according to the invention.
  • a particularly preferred embodiment provides that the element is obtainable in that in the manufacture of the one-piece element, the channel is formed by removal of insulating material, without further steps being required. In this case, only so much insulating material is removed that in the region of the channels the heat transfer value is at most 25%, preferably at most 20%, larger than in the remaining area of the plate-shaped component. This provides the channel in a very simple way. The result is correspondingly prefabricated elements that can be processed at the construction site and not specially trained professionals. Due to the limited increase in the heat transfer value, the formation of undesirable thermal bridges is largely avoided. The commonly used insulation material is thick enough that by removing insulation material in the areas in which the desired ventilation ducts are to be arranged, the increase of the heat transfer value remains within the stated, reasonable limits.
  • a suitable building material for the plate-shaped element is a polystyrene foam board.
  • Such polystyrene foam boards are known as thermal insulation elements and have good properties for thermal insulation and sound insulation. In addition, they are easy to process.
  • a particularly simple and thus inexpensive way to form the channel is the cutting out of the insulating material with a hot wire. This has been field-tested especially in polystyrene foam boards. It is a relatively inexpensive method, which is known in the art.
  • the walls of the channels can be designed sound-absorbing and / or sound-insulating.
  • the channel walls holes in the insulating material with a diameter of 1 to 2 mm and a depth of about 10 to 12 mm. This creates a microperforated absorber which, as is known, has a sound-damping effect.
  • the channel is substantially rectangular, with the width of the channel is about 10 times as large the depth. Of course, this does not depend on an exact rectangular shape. What is important is simply the fact that the depth of the channel is decisive for increasing the heat transmission value in the region of the channel. In order to optimize the total thermal insulation properties of the channel, it is better if in some areas the thermal transmittance value is slightly higher than having to accept a significant increase in smaller areas. It is therefore better to form the channels significantly wider than deep.
  • One favorable dimension for the width of the channel is about 30 cm. If one follows the given ratio of width and depth, this would correspond to a depth of about 3 cm.
  • the thickness of the element should be at least 10 cm. This ensures that even in the area in which the channels are located, the heat transfer value is sufficiently low.
  • the element has connecting devices which are arranged so that a plurality of elements can be connected in such a way that a desired channel system is formed.
  • the elements may have recesses and mutually matched counterparts, such as grooves and springs corresponding to the edges, so that even non-specialized personnel will put the elements together in a suitable manner. This can be avoided errors during installation.
  • thermal insulation system for a building.
  • openings are to be attached, which connect the building interior with the channel system through which the air flows in the plate-shaped elements.
  • the channels in the plate-shaped elements form just that channel system.
  • the elements can be made simply by forming the channels by removing insulating material from a one-piece element.
  • a commercially available polystyrene foam board can be used, from which the insulating material can be easily removed with a hot wire.
  • Figure 1 a an existing outer wall according to the prior art
  • Figure 1 b a thermally refurbished according to the prior art outer wall
  • Figure 2a a vertical section of a renovated outer wall with ventilation channels
  • Figure 2b a horizontal section of a renovated outer wall with ventilation channels
  • Figure 2c another section of a renovated outer wall with ventilation channels
  • FIG. 1 a an existing outer wall 1 is shown, as known and common in the art. If you want to improve the often poor thermal insulation can, as shown in Figure 1 b, externally apply a thermal insulation element 2 of a good 10 cm thick polystyrene foam board.
  • FIG. 2 a shows a thermally refurbished exterior wall 1 with a ventilation channel 3 in vertical section. It can be seen that the ventilation duct 3 is located in the middle of the heat-insulating element 2 and expands from the bottom to the top. At selected points 4, the ventilation duct extends to the edge of the rigid foam plate. At these points 4, the outer wall has an opening 5, so that the air from the ventilation duct 3 in flow into the respective room of the building or can flow out of the room accordingly.
  • FIG. 2b shows a vertical section so that the width of the ventilation duct 3 can be seen. From the further section in Figure 2c shows that the ventilation ducts 3 have a circular cross-section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Building Environments (AREA)
  • Thermal Insulation (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Ventilation (AREA)
  • Duct Arrangements (AREA)
EP08758941A 2007-05-31 2008-06-02 Élément d'isolation thermique comportant des canaux de ventilation Not-in-force EP2155979B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200830391T SI2155979T1 (sl) 2007-05-31 2008-06-02 Element za toplotno izolacijo ki obsega venitlacijske kanale
PL08758941T PL2155979T3 (pl) 2007-05-31 2008-06-02 Izolacja cieplna elementów obejmujących kanały wentylacyjne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007025469A DE102007025469A1 (de) 2007-05-31 2007-05-31 Wärmedämmelement mit Lüftungskanälen
PCT/EP2008/004372 WO2008145402A2 (fr) 2007-05-31 2008-06-02 Élément d'isolation thermique comportant des canaux de ventilation

Publications (2)

Publication Number Publication Date
EP2155979A2 true EP2155979A2 (fr) 2010-02-24
EP2155979B1 EP2155979B1 (fr) 2011-09-07

Family

ID=39941990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08758941A Not-in-force EP2155979B1 (fr) 2007-05-31 2008-06-02 Élément d'isolation thermique comportant des canaux de ventilation

Country Status (12)

Country Link
US (1) US8756887B2 (fr)
EP (1) EP2155979B1 (fr)
JP (1) JP5197738B2 (fr)
CN (1) CN101755097B (fr)
AT (1) ATE523643T1 (fr)
DE (1) DE102007025469A1 (fr)
DK (1) DK2155979T3 (fr)
ES (1) ES2369042T3 (fr)
HR (1) HRP20110680T1 (fr)
PL (1) PL2155979T3 (fr)
SI (1) SI2155979T1 (fr)
WO (1) WO2008145402A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007025469A1 (de) * 2007-05-31 2008-12-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wärmedämmelement mit Lüftungskanälen
DE102009008408B4 (de) * 2009-02-11 2013-11-07 Skoberne Schornsteinsysteme Gmbh Beheizbares Gebäude mit einer Abgasleitung
DE202010011525U1 (de) 2010-08-18 2010-10-21 SCHWENK DÄMMTECHNIK GMBH & Co KG Dämmelement
WO2012159251A1 (fr) * 2011-05-20 2012-11-29 Dow Global Technologies Llc Appareil de ventilation pour systèmes extérieurs d'isolation et de finition
DE102013218418A1 (de) 2012-12-03 2014-06-05 Fresh Aertec GmbH & Co. KG Lüftungssystem, insbesondere Schnellinstallations-Lüftungssystem mit einem konfektionierbaren Durchführungselement
DE102013214160A1 (de) 2013-07-18 2015-01-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kanal mit Verschlussfunktion und Dämmelement mit einem solchen Kanal
DE102014100447A1 (de) * 2014-01-16 2015-07-30 Haacke Treuhand Gmbh Haustragwerk für ein Gebäude
CN105350683B (zh) * 2015-11-14 2018-08-17 占行波 房屋外墙吸风式太阳能室内降温装置
FI127401B (fi) * 2016-01-18 2018-05-15 Paroc Panel System Oy Ab Rakennuksen ulkovaipan saneerausjärjestely
DE102019128118A1 (de) * 2019-10-17 2021-04-22 Matthias Elsässer Fassadenelement und Verfahren zur energetischen Sanierung von Gebäuden

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US4411255A (en) * 1981-01-06 1983-10-25 Lee Kenneth S Passive thermal storage wall structures for heating and cooling buildings
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Also Published As

Publication number Publication date
HRP20110680T1 (hr) 2011-10-31
DK2155979T3 (da) 2011-12-12
US20100175340A1 (en) 2010-07-15
EP2155979B1 (fr) 2011-09-07
WO2008145402A2 (fr) 2008-12-04
CN101755097A (zh) 2010-06-23
CN101755097B (zh) 2012-06-20
ES2369042T3 (es) 2011-11-24
DE102007025469A1 (de) 2008-12-11
US8756887B2 (en) 2014-06-24
PL2155979T3 (pl) 2011-11-30
ATE523643T1 (de) 2011-09-15
SI2155979T1 (sl) 2011-11-30
WO2008145402A3 (fr) 2009-07-30
JP2010528201A (ja) 2010-08-19
JP5197738B2 (ja) 2013-05-15

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