EP3553240A1 - System zur unterdrückung der wärmebrücken in gebäuden - Google Patents

System zur unterdrückung der wärmebrücken in gebäuden Download PDF

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Publication number
EP3553240A1
EP3553240A1 EP19000175.0A EP19000175A EP3553240A1 EP 3553240 A1 EP3553240 A1 EP 3553240A1 EP 19000175 A EP19000175 A EP 19000175A EP 3553240 A1 EP3553240 A1 EP 3553240A1
Authority
EP
European Patent Office
Prior art keywords
heat
conducting layer
thermal
wall
layer
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.)
Withdrawn
Application number
EP19000175.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Milos Kalusek
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.)
Vysoke Uceni Technicke V Brne
Original Assignee
Vysoke Uceni Technicke V Brne
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 Vysoke Uceni Technicke V Brne filed Critical Vysoke Uceni Technicke V Brne
Publication of EP3553240A1 publication Critical patent/EP3553240A1/de
Withdrawn legal-status Critical Current

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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
    • E04B1/7641—Elements for window or door openings, or for corners of the building
    • 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
    • E04B1/7675—Insulating linings for the interior face 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
    • E04B1/74—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
    • 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
    • E04B2001/7679—Means preventing cold bridging at the junction of an exterior wall with an interior wall or a floor

Definitions

  • the invention relates to measures for the suppression of negative phenomena of thermal bridges in buildings, such as wall moisture and mildew.
  • thermal bridge refers to locations on the building shell where, as compared to the other surfaces of the jacket, heat transfer increases the heat loss.
  • the share of these heat losses in the total loss of the building is usually 10%, and in particularly unfavorable cases up to 30%.
  • Thermal bridges arise mainly in lines along the edges and joints of building structures and at places where different building materials are combined (geometric and material thermal bridge).
  • punctiform weak points may also arise, e.g. anchoring of curtain walls and canopies, in places of a balcony connection, in the corners between walls and ceiling and the like.
  • the buildings are usually provided on the outside with thermal insulation.
  • thermal insulation In this case, it is usually necessary for aesthetic reasons to perform such a measure on the entire facade surface, which is costly.
  • various indoor and outdoor paints are used, but they work very limited.
  • the paints should be applied in a thick layer, which affects the ambience of the interiors. It is therefore a subsequent thermal insulation, but where the risk of condensation under the coat of paint threatens.
  • the owner has a task to solve, to eliminate immediately massive effects of thermal bridges, with a thermal insulation of the whole building at the given moment financially often unaffordable.
  • the invention is based on the object to design a contact system for suppressing the effects of thermal bridges, its implementation is very fast and inexpensive, the outer shell and the interior of the building are only slightly touched.
  • this object is achieved by a system for the suppression of punctiform and linear thermal bridges in buildings with features according to claim 1.
  • the essence of the system is that it is formed by a layer of material with at least 5 Wm -1 .K -1 thermal conductivity, covering the thermal bridge at the inner wall of the building with at least 5 cm overlap, the actual heat conducting layer Layer is attached by a vapor-tight adhesive to the substrate.
  • the heat-conducting layer which is intended to cover a punctiform thermal bridge in a corner of the room, overlaps the adjacent areas of the two walls and the ceiling or floor.
  • the heat-conducting layer which is to cover a linear thermal bridge in a corner of the room, overlaps the adjacent areas of the two walls.
  • the heat-conducting layer which is to cover a line-shaped position along the window frame, overlaps on the window reveal.
  • the heat-conducting layer may be glued to the surface of the inner wall or incorporated under the plaster.
  • the heat-conducting layer may be formed by a metal sheet or a foil or by a graphite or graphene paint.
  • the surface layer supplies the heat energy from the nearby warmer surface portion, thereby increasing the temperature of that critical location.
  • the thin heat-conducting layer must cover the place with the lowest surface temperature, and the adjacent wall areas, where the temperature is sufficient thanks to the better insulating properties of the wall. It is usually an area of a few square decimeters. A 1 mm thick layer is usually sufficient, with the layer being vapor-tightly bonded to its backing, i. either by gluing on or under plaster. If there is no vapor-tight connection, water vapor condensation and mold formation can occur under the layer. The whole arrangement is finally provided with wall paint and looks aesthetically ongoing without further structural measures.
  • the measure according to the invention for suppressing negative effects of thermal bridges in buildings consists in the insertion, placement or application of a thin layer of a thermally conductive material on the surface of the inner walls of buildings or immediately below their surface.
  • the measure applies both to deficient existing buildings and to new buildings where thermal bridges occur.
  • the measure is particularly well suited to combat thermal bridges on exposed areas, such as the cool vertical and horizontal corners of the outer walls and in corners under the roof.
  • Another critical point where the solution can be used to advantage is the window reveal. Here, it comes to lowering the inner surface temperature due to a linear geometric thermal bridge, which experience has shown along the frame installation in the window reveal and the spacer frame.
  • the system according to the invention was on the one hand at a point-shaped thermal bridge in a corner formed by a ceiling and two walls under the attic - see Fig. 1 on the other hand, in the case of a linear thermal bridge on a soffit along the window frame - see Fig. 2 used.
  • a linear thermal bridge on a soffit along the window frame - see Fig. 2 used.
  • three square Al foils S1 to S3 of width a were adhered to a wall face in a corner
  • they were elongated foils of width a It is therefore the dimension a by which the film overlaps the location of the thermal bridge.
  • the system according to the invention was tested on the one hand on a real residential building, and on the other hand in virtual space by computer simulation of the 3D heat fields.
  • the input and boundary data of both experiments and their results are shown in the following table.
  • Material of the heat-conducting layer aluminum foil.
  • the surface temperature can be further increased if a thin heat-insulating, possibly also adhesive base layer, e.g. based on polyurethane foam.
  • a 3D thermal conductivity calculation is recommended to determine the correct layer thickness and the dimensions of the film.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
EP19000175.0A 2018-04-11 2019-04-09 System zur unterdrückung der wärmebrücken in gebäuden Withdrawn EP3553240A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2018-179A CZ2018179A3 (cs) 2018-04-11 2018-04-11 Kontaktní systém k potlačení tepelných mostů v budovách

Publications (1)

Publication Number Publication Date
EP3553240A1 true EP3553240A1 (de) 2019-10-16

Family

ID=66349221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19000175.0A Withdrawn EP3553240A1 (de) 2018-04-11 2019-04-09 System zur unterdrückung der wärmebrücken in gebäuden

Country Status (2)

Country Link
EP (1) EP3553240A1 (cs)
CZ (1) CZ2018179A3 (cs)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2706159A1 (de) * 2012-09-11 2014-03-12 Daw Se Verfahren zur Verminderung oder zum Unterbinden von Feuchte- und/oder Schimmelbildung- bzw. schäden in wärmegedämmten Bereichen, Verwendung eines Wärmeleiters zur Verminderung oder zum Unterbinden von Feuchte- und/oder Schimmelbildung bzw. schäden in wärmegedämmten Bereichen sowie Eckwinkelprofil zur Verminderung oder zum Unterbinden von Feuchte- und/oder Schimmelschäden in wärmegedämmten Bereichen
DE202015003877U1 (de) * 2015-05-28 2015-07-08 Marco Michallik Kostengünstige herstellbare Vorrichtung zum dauerhaften Schutz vor Feuchtigkeitsniederschlag an einem Eckbereich durch innenseitiges Dämmen
US20170006736A1 (en) * 2013-12-26 2017-01-05 Terrella Energy Systems Ltd. Exfoliated Graphite Materials and Composite Materials and Devices for Thermal Management

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9187946B2 (en) * 2013-09-11 2015-11-17 Advanced Architectural Products, Llc Through-wall metal flashing having thermal breaks
RU2590962C1 (ru) * 2014-12-16 2016-07-10 Сергей Михайлович Анпилов Способ сокращения теплопотерь энергоэффективного здания
KR102082738B1 (ko) * 2015-11-24 2020-02-28 웨이핑 위 커튼 월 건축 노드의 열교를 통한 열전달 차단 구조
CN107980074A (zh) * 2016-07-26 2018-05-01 余卫平 阻断通过幕墙建筑热冷桥传热的结构及其施工方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2706159A1 (de) * 2012-09-11 2014-03-12 Daw Se Verfahren zur Verminderung oder zum Unterbinden von Feuchte- und/oder Schimmelbildung- bzw. schäden in wärmegedämmten Bereichen, Verwendung eines Wärmeleiters zur Verminderung oder zum Unterbinden von Feuchte- und/oder Schimmelbildung bzw. schäden in wärmegedämmten Bereichen sowie Eckwinkelprofil zur Verminderung oder zum Unterbinden von Feuchte- und/oder Schimmelschäden in wärmegedämmten Bereichen
US20170006736A1 (en) * 2013-12-26 2017-01-05 Terrella Energy Systems Ltd. Exfoliated Graphite Materials and Composite Materials and Devices for Thermal Management
DE202015003877U1 (de) * 2015-05-28 2015-07-08 Marco Michallik Kostengünstige herstellbare Vorrichtung zum dauerhaften Schutz vor Feuchtigkeitsniederschlag an einem Eckbereich durch innenseitiges Dämmen

Also Published As

Publication number Publication date
CZ308263B6 (cs) 2020-03-25
CZ2018179A3 (cs) 2020-03-25

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