EP0095159A2 - Bande de matériau pour l'isolation thermique dans les fentes d'aération de murs de construction - Google Patents

Bande de matériau pour l'isolation thermique dans les fentes d'aération de murs de construction Download PDF

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Publication number
EP0095159A2
EP0095159A2 EP83105004A EP83105004A EP0095159A2 EP 0095159 A2 EP0095159 A2 EP 0095159A2 EP 83105004 A EP83105004 A EP 83105004A EP 83105004 A EP83105004 A EP 83105004A EP 0095159 A2 EP0095159 A2 EP 0095159A2
Authority
EP
European Patent Office
Prior art keywords
material web
web according
heat radiation
reflection surface
thermal
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Withdrawn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
EP83105004A
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German (de)
English (en)
Other versions
EP0095159A3 (fr
Inventor
Günter Dr. Ing. Dipl.-Ing. Pusch
Dieter E. Aisslinger
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0095159A2 publication Critical patent/EP0095159A2/fr
Publication of EP0095159A3 publication Critical patent/EP0095159A3/fr
Withdrawn legal-status Critical Current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
    • E04B1/78—Heat insulating elements
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/264—Combinations of lamellar blinds with roller shutters, screen windows, windows, or double panes; Lamellar blinds with special devices

Definitions

  • the invention relates to a material web for thermal insulation in the air gaps of building walls or parts thereof.
  • Air gaps are provided for the thermal insulation of building walls because air has a very low coefficient of thermal conductivity of only 0.025 W / m 2 K. If the air gap is left open, however, air movements occur in it, with the result that the heat transfer increases greatly through convection. To avoid this, foam or mineral fiber plates are used through the air gaps. This increases the coefficient of thermal conductivity by a factor of 1.5 to 2 to values of o, o4 to o, o5 W / m 2 K. However, this value is still considerably lower than with open air gaps.
  • the aforementioned values can increase very greatly if moisture forms in the insulating material, for example due to a dew point shift. The insulating effect then decreases considerably.
  • Another disadvantage of using the mentioned Plates in the air gaps are that they are very voluminous, which causes high transportation and storage costs. Transports over longer distances are therefore uneconomical. In areas that have no industry for the production of such boards, the use of foam or mineral fiber boards is therefore hardly possible. After all, the panels cannot be used in air gaps that are formed by transparent parts of the building band, in particular windows. However, the insulation effect is particularly low there, ie there is particularly great heat loss or heating.
  • the invention has for its object to find a material web for the air gaps of building walls that is easier to manufacture and handle with at least the same thermal insulation effect and is also more versatile.
  • the material web is leporello-like, zigzag-shaped, folded horizontally in such a way that a narrow gap remains between the folded edges and the boundaries of the air gap, and that the material web is at least on one side, preferably on both Pages, is formed as a heat radiation reflection surface.
  • the thermal insulation is one Filling of the air gap with foam or mineral fiber boards improved.
  • the material web at the folding edges in expectinggefaltetem 4o state encloses an angle of about 0 ° to 12. At larger angles, the thermal insulation deteriorates because convection then increases. If the folding angle under 4 0 °, so the cost of materials is relatively large, no resultant appreciably improved insulating effect is achieved. A favorable compromise is given when the area enclosed by the folding angle in the range of about 6 d is 0 to 9 °.
  • the distance between the folded edges and the boundaries of the air gap should be as small as possible when the material web is unfolded. A distance that is at most in the range of approximately 10 mm has proven effective.
  • the material web should be constructed from a carrier material with a metal coating applied thereon as a heat reflection surface (s), since metal surfaces reflect thermal IR radiation practically completely.
  • the metal coating is expediently evaporated to a thickness of a few nm on the carrier material.
  • metal plating with the thinnest aluminum foils can also be provided for the evaporation, but this is usually associated with higher costs and weight.
  • the heat radiation reflection surface (s) should be covered with a protective layer that is at least largely transparent to thermal IR radiation. Due to the transparency in the infrared spectral range, the heat radiation reflection is only slightly impaired by this protective layer, so it is essentially retained. Above all, infrared-permeable plastic materials come into question as the material for these protective layers, such as, for example, specially formulated polyethylene or isomerized rubber (cyclo rubber).
  • the material web can also be arranged in the air gaps of multiple glass windows, in particular double windows or compound windows. Because of the fan fold, the material web can be pulled up or down as required. In the latter state, there is surprisingly a reduction in the heat transfer number K and thus the thermal permeability by a factor of 3 to 5. Even with complex constructions, this has not yet been achieved. This means that the largest "thermal hole" in a building wall can be largely insulated thermally, which means that considerable savings in heating costs can be achieved.
  • the protective layer on the heat radiation reflection surfaces can normally also be transparent in the visual area. If the material web is arranged in multiple glass windows, however, there is often a desire to have the heat radiation reflection surface to be colored, so that their metallic character can no longer be seen. In this case, it is provided according to the invention that the protective layer contains color or colored pigments in such an enrichment that the heat radiation reflection surface is no longer visible, but the permeability of the protective layer for thermal radiation is largely retained, and the thermal absorption in the protective layer is therefore as low as possible.
  • the protective layer applied to the outside should be transparent or white in the visual range of the radiation, so that the material web can serve as sun protection in summer by preventing the rooms from heating up due to the entry of solar energy in a more or less closed state.
  • the protective layer can be colored in that the protective layer has a binder which is permeable to heat radiation and in which dyes which absorb or reflect only in the visible spectral range are dissolved and / or colored pigments are incorporated.
  • the binder should contain color pigments in a size distribution that is relatively large in relation to the wavelength of the radiation in the visual range and relatively small in relation to the wavelength of the radiation in the thermal IR range.
  • the color pigments should therefore have a diameter that is smaller than 1 ⁇ m if possible.
  • a size distribution of color pigments in which the pigment diameters have a Gaussian distribution of 0.35 ⁇ m has proven to be useful.
  • the ratio of binder to pigment content should be as large as possible and the layer thickness of the protective layer should be as small as possible.
  • Such a layer thickness and such a binder-pigment proportion ratio is preferably selected that, on average, approximately two layers of pigment particles are loosely embedded in the binder, as a result of which a high transparency of the protective layer results in the entire relevant IR range. All substances which do not themselves have an IR molecular resonance can be used as color pigments. Inorganic pigments such as Ti0 2 are preferably suitable. Alzarin and azo dyes which are transparent in the IR spectral range are suitable as dyes.
  • the protective coating is expediently constructed in such a way that it is composed of a base applied to the heat radiation reflection surface, which protects against corrosion and serves as an adhesion promoter or primer, and from a layer of paint applied to it.
  • the base should have the smallest possible thickness down to 0.5 ⁇ m and / or the color layer should have a thickness of a few ⁇ m to a few ⁇ m.
  • the underlay can consist of the same binder materials as the color layer. The latter has the same specification as the colored protective layer described above, its thickness being selected so that on the one hand color coverage is achieved and on the other hand extensive transparency in the thermal infrared spectral range is retained.
  • the air gap in the multiple glass window in which the material web is used should be sealed as airtight as possible, for example, with rubber seals. To prevent fogging, moisture-absorbing silicate packs should be stored in the air gap.
  • a cord drive or the like is expediently provided for moving the material web up and down. This can be connected to a small electric motor. This opens up the possibility The ability to include the material web in a central control and calculation system, which, depending on the position of the sun, the time of day and weather conditions, causes the material web to be adjusted accordingly and thus contributes to an optimization of the building climate on the one hand and on the other hand to minimal energy consumption.
  • the carrier material for the material web according to the invention can consist, for example, of a textile fabric or non-woven fabric. Then, if possible, their surface should be provided with a smoothing coating so that a high thermal reflection is achieved after the vapor deposition with the metal coating.
  • the carrier material can also consist of a moisture-resistant special paper provided with a fungicidal coating.
  • special papers are commercially available.
  • the paper can be adapted to the given application by further equipment, so that a long service life can be achieved.
  • the invention provides that the material web is permeable to water vapor.
  • the double window 1 shown schematically in FIG. 1 has two window panes 2, 3 arranged at a distance from one another, which enclose an air gap 4.
  • a seal not shown here, closes the air gap against air entry.
  • a folding sheet 5 is inserted, which is leporello-like, that is to say zigzag-shaped, folded and pulled apart here so far that its folding edges 6 have certain distances 7, 8 from the inside of the window panes 2, 3. These distances are only a few millimeters, so they are dimensioned so that no significant convection occurs in the air gap 4.
  • the folding web 5 which is not shown here, consists of a carrier material, for example a textile fabric, a nonwoven fabric or a special paper.
  • An aluminum layer is evaporated on both sides of this carrier material. This reflects incident heat radiation practically completely.
  • a protective layer is applied to the metal layers, which is so thin that it is largely transparent to thermal IR radiation.
  • the protective layer on the inside is colored, which can be done, for example, by embedded color pigments in the manner described above.
  • a protective layer structure is expedient, which consists of a base applied to the metal layer and a color layer applied thereon.
  • the protective layer is white on the outside colors to give the best possible protection against sunlight.
  • Figure 2 shows the double window 1 according to Figure 1 in the view. It consists of the two window panes 2, 3 and the window frame 9 surrounding them. Between the window panes 2, 3, the folding sheet 5 is inserted, which is slightly raised in the illustration shown, so that the four lowest folding edges 6 have a narrow distance in comparison have the folding edges 6 located further up.
  • the folding web 5 has a bottom strip lo, which is suspended from holding cords 11, 12.
  • the retaining cords 11, 12 are guided in the upper part of the window frame 9 and there to an electric motor 13, with the aid of which the retaining cords 11, 12 and thus the end strip 10 and the folding panel 5 can be pulled up or lowered.
  • the electric motor 13 can be connected to a control and computing system, which then causes the folding path 5 to be adjusted automatically depending on the position of the sun, the time of day and the weather conditions.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
EP83105004A 1982-05-25 1983-05-20 Bande de matériau pour l'isolation thermique dans les fentes d'aération de murs de construction Withdrawn EP0095159A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3219509 1982-05-25
DE19823219509 DE3219509A1 (de) 1982-05-25 1982-05-25 Materialbahn zur thermischen isolation in den luftspalten von gebaeudewaenden

Publications (2)

Publication Number Publication Date
EP0095159A2 true EP0095159A2 (fr) 1983-11-30
EP0095159A3 EP0095159A3 (fr) 1984-11-14

Family

ID=6164381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105004A Withdrawn EP0095159A3 (fr) 1982-05-25 1983-05-20 Bande de matériau pour l'isolation thermique dans les fentes d'aération de murs de construction

Country Status (2)

Country Link
EP (1) EP0095159A3 (fr)
DE (1) DE3219509A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172024A (en) * 1985-03-05 1986-09-10 Tac Construction Materials Ltd Fire-resistant building structure
EP0483528A1 (fr) * 1990-10-01 1992-05-06 INN-GLASBAU GmbH Système de vitres isolantes
EP1331316A1 (fr) * 2002-01-23 2003-07-30 Thermal Economics Limited Isolation thermique ameliorée

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013110077B4 (de) * 2013-09-12 2017-03-16 Ludwig Bohrer Maschinenbau Gmbh Wärmeisolierte Vorrichtung zum Waschen von Getränkekästen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749418A1 (de) * 1977-11-04 1979-05-10 Hermkes Hubert Isolierglas mit zwischenscheiben- jalousie
DE2840020A1 (de) * 1978-09-14 1980-03-27 Koester Helmut Waermereflektierende ausbildung von geweben oder beschichteten traegergeweben
FR2501774A2 (fr) * 1981-03-13 1982-09-17 Delaroche Pierre Chassis-panneau a double vitrage et a store isolant incorpore
FR2483508A1 (fr) * 1980-05-29 1981-12-04 Delaroche Pierre Chassis-panneau a double vitrage et a store isolant incorpore

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172024A (en) * 1985-03-05 1986-09-10 Tac Construction Materials Ltd Fire-resistant building structure
EP0483528A1 (fr) * 1990-10-01 1992-05-06 INN-GLASBAU GmbH Système de vitres isolantes
EP1331316A1 (fr) * 2002-01-23 2003-07-30 Thermal Economics Limited Isolation thermique ameliorée

Also Published As

Publication number Publication date
DE3219509A1 (de) 1983-12-01
EP0095159A3 (fr) 1984-11-14

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Effective date: 19850715

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Inventor name: PUSCH, GUENTER, DR. ING. DIPL.-ING.

Inventor name: AISSLINGER, DIETER E.