EP2522785A2 - Procédé et système d'isolation thermique intérieure de murs extérieurs de bâtiments - Google Patents
Procédé et système d'isolation thermique intérieure de murs extérieurs de bâtiments Download PDFInfo
- Publication number
- EP2522785A2 EP2522785A2 EP12167005A EP12167005A EP2522785A2 EP 2522785 A2 EP2522785 A2 EP 2522785A2 EP 12167005 A EP12167005 A EP 12167005A EP 12167005 A EP12167005 A EP 12167005A EP 2522785 A2 EP2522785 A2 EP 2522785A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- thermal insulation
- exterior wall
- adhesive
- building exterior
- moisture
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000009413 insulation Methods 0.000 claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000000853 adhesive Substances 0.000 claims abstract description 34
- 230000001070 adhesive effect Effects 0.000 claims abstract description 34
- 238000009421 internal insulation Methods 0.000 claims abstract description 18
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 12
- 238000009792 diffusion process Methods 0.000 claims description 24
- 239000012720 thermal barrier coating Substances 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 9
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 239000011505 plaster Substances 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 39
- 230000004888 barrier function Effects 0.000 description 28
- 238000009833 condensation Methods 0.000 description 12
- 230000005494 condensation Effects 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Images
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
- E04B1/7675—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
- E04B1/70—Drying or keeping dry, e.g. by air vents
Definitions
- the invention relates to a method and a system for internal insulation of external building walls.
- the invention further relates to the use of an adhesive for forming a moisture-regulating intermediate layer in an interior insulation system.
- the first known system for internal insulation of a building exterior wall provides for the use of a vapor barrier.
- the vapor barrier is mounted directly or indirectly on the interior side of the thermal barrier coating, so that a diffusion of water vapor is prevented from the inside to the outside.
- the use of a vapor barrier is not without problems.
- with the use of a vapor barrier increases the cost of producing the building exterior wall, since the vapor barrier layer must be performed without interruption.
- the individual vapor barrier webs have to be adhesively bonded to one another in the region of the joints and in the region of their connections to adjacent components in order to form the vapor barrier layer. Furthermore, care must be taken that no subsequent damage to the vapor barrier layer takes place.
- Damage can for example already be caused by the impact of a nail, so that a permanent functioning of the vapor barrier can not be guaranteed. Because a vapor pressure equalization takes place even by the smallest gaps or holes, so that water vapor enters the structure of the building exterior wall.
- the second known system provides for the use of a capillary-active vapor-permeable thermal insulation board.
- Capillary-active thermal insulation panels have the property of being able to easily absorb moisture via the capillary and to be able to dissipate it again. Accordingly, capillary-active thermal insulation panels allow rapid breakdown of the system in the event of condensed water failure, so that a Long-lasting moisture and the associated risk of mold formation can be avoided.
- the thermal insulation of the thermal insulation material decreases. This can only be compensated by the fact that the thermal insulation material is applied in a greater layer thickness. In the case of interior insulation, however, this is associated with a loss of space.
- a component in particular a thermal insulation board, which is impregnated or coated with an impregnating or coating agent in such a way that it has a certain water vapor transmission resistance which is greater than that of the base material of the thermal insulation panel.
- the impregnation or coating should make a vapor barrier unnecessary.
- the present invention seeks to provide a process-safe and little damage-prone method and system for internal insulation of a building exterior wall.
- the method according to the invention or the system according to the invention should make it possible to omit a vapor barrier.
- a thermal barrier coating a capillary-active, water vapor permeable heat insulation insert, which is attached by means of an adhesive on the inside of the building exterior wall.
- the adhesive used in this case is used at the same time to form a moisture-regulating intermediate layer, which is able to absorb moisture, especially precipitated condensate, temporarily store and release again.
- a moisture-regulating intermediate layer which according to the invention coincides with the adhesive layer for fixing the thermal insulation panel on the inside of the building exterior wall, can on the arrangement of a vapor barrier - however a capillary active diffusion-open thermal insulation board is used - omitted.
- the capillary-active, vapor-permeable thermal insulation board prevents rapid drying of the system in the event of a condensation water failure. Nevertheless, no worse thermal insulation performance of the thermal insulation panel can be determined in a condensation water. This is due to the fact that the moisture is almost completely absorbed by the moisture-regulating intermediate layer and temporarily stored. Surprisingly, it was found that the moisture temporarily stored in the intermediate layer neither leads to mold formation nor to a loss of stability of the wall structure. If the dew period is over, ie there is a vapor pressure gradient favoring vapor diffusion from outside to inside, the moisture temporarily stored in the moisture-regulating intermediate layer is removed as water vapor back into the interior of the room.
- the advantages of a method according to the invention are obvious.
- the formation or arrangement of a vapor barrier is dispensable, so that the processing reliability increases.
- a longer lasting moisture penetration of the thermal insulation and a concomitant reduced thermal insulation of the thermal insulation are avoided. It is therefore not necessary, the thermal barrier coating at the expense of the interior in a larger To train strength.
- the system applied by means of a method according to the invention permits vapor diffusion, by means of which moisture can be withdrawn from the interior during the dew period and moisture can be supplied during the evaporation period.
- the inventive method therefore leads to a breathable interior insulation of a building exterior wall whose moisture-regulating properties ensure a healthy and pleasant indoor climate inside the building.
- the adhesive for full-surface bonding of the thermal insulation board with the building exterior wall and the formation of a continuous moisture-regulating intermediate layer is evenly distributed on the surface to be bonded of the building exterior wall and / or the thermal insulation board.
- Any voids between the building exterior wall and the thermal insulation panel are preferably completely filled by the adhesive to ensure that the moisture is retained in the moisture control interlayer. It is also within the meaning of the invention that such cavities are leveled with a ground plaster, which then forms the basis for the moisture-regulating adhesive of the invention.
- the adhesive is applied by spraying, brushing, rolling and / or filling, preferably with the aid of a tooth trowel, on the inside of the building exterior wall and / or the thermal insulation board.
- spraying, brushing, rolling and / or filling preferably with the aid of a tooth trowel, on the inside of the building exterior wall and / or the thermal insulation board.
- the processing in the so-called floating-buttering process in which the adhesive is applied to both the wall surface and on the thermal insulation board.
- the storage capacity of the moisture-regulating intermediate layer is adjusted such that the absorption capacity of moisture is ensured over the period of a dew period.
- the duration of a dew period depends on the individual case. The determinants of the individual case are the season, the time of day, the geographical position of the building, the orientation of the outer wall of the building in relation to the direction of the sky and the specific use of the interior bounded by the outer wall of the building, to name but a few. All factors have an influence on the temperature and the moisture content of the boundary layers or air layers adjacent to the outer wall of the building and on the other side. For example, the dew period may last only one night or a full winter.
- the ability of the adhesive to absorb moisture and temporarily store it is preferably adjusted via its layer thickness. Further preferably, the layer thickness is 0.2 mm to 20 mm, preferably 0.5 mm to 10 mm.
- an adhesive composition can be used which results in the formation of an adhesive layer having improved sorption properties.
- the thermal insulation board has a water vapor diffusion resistance coefficient ⁇ ⁇ 20, further preferably ⁇ ⁇ 10. Due to the hydrophobic properties, a water absorption of the thermal insulation board is largely excluded, while the thermal insulation board at the same steam diffusion resistance coefficient is also open to diffusion. If the properties of the thermal insulation panel according to the invention are met, the individual embodiment can vary widely. It is irrelevant whether the thermal insulation board consists of a homogeneous insulating material or a combination of different insulating materials. Likewise, for example, has a coating applied to a surface of the insulating board coating and / or an applied Arm ists- or nonwoven fabric has no effect on the invention, as long as the Diffussionsoffenheit remains ensured.
- thermal insulation panels are used with a high thermal insulation effect.
- this leads to an advantageously lower layer thickness of the system structure and thus to a small loss of living space.
- the water vapor diffusion resistance is low, which is advantageous in terms of the diffusion-open nature of the invention the heat insulation plate.
- Thermal insulation panels with such properties are based, for example, on hydrophobized silica airgel. Thermal insulation panels with thermal conductivities ⁇ ⁇ 0.030 W / (m * K), in particular ⁇ ⁇ 0.025 W / (m * K) and preferably ⁇ ⁇ 0.020 W / (m * K), are therefore preferably used.
- a coating for example in the form of a filler, a single or multi-layer plaster, which may be reinforced by the introduction of a reinforcing fabric, a paint or the like, at least one bonded to the building exterior wall to form a thermal barrier coating thermal insulation board, is applied as a room-side conclusion.
- a visually attractive final coating can be formed.
- the system for internal insulation of a building exterior wall proposed for solving the problem initially set comprises at least one capillary-active, vapor-diffusion-open thermal insulation board for forming a thermal insulation layer and an adhesive for fixing the thermal insulation board to the inside of the building exterior wall, wherein the adhesive also forms a moisture-regulating intermediate layer, which in the Able to absorb moisture, especially precipitated condensate, temporarily, too save and return.
- the system of thermal insulation board and adhesive has the advantages already described above in connection with the method according to the invention, so that reference is made to avoid repetition thereof.
- the thermal insulation panel preferably has hydrophobic properties. This ensures that no or at least only a very low water absorption takes place. Further preferably, the thermal insulation board has a water vapor diffusion resistance coefficient ⁇ ⁇ 20, preferably ⁇ ⁇ 10, so that a water vapor diffusion is ensured by the thermal insulation board.
- a mineral or organic adhesive may be used.
- the adhesive preferably has a water vapor diffusion resistance coefficient ⁇ ⁇ 25.
- an adhesive for fastening a thermal insulation panel on the inside of a building exterior wall and for forming a moisture-regulating intermediate layer between the thermal insulation panel and the building exterior wall is claimed within the scope of the invention.
- the glue thus assumes a double function.
- he fixes the thermal insulation board on the inside of the building exterior wall on the other hand he keeps precipitating condensation in the intermediate layer stored until the dew period is replaced by a period of evaporation and moisture in the form of water vapor on the thermal insulation panel can be discharged back into the room.
- the internal insulation system according to the invention is applied to a load-bearing wall former, for example a 20 cm thick C35 / 45 concrete wall.
- the heat transfer coefficient of the building exterior wall made of concrete is 3.44 W / (m 2 * K).
- a 3 cm thick thermal barrier coating comprising at least one heat-insulating panel based on hydrophobized silica airgel is applied to the inside of the building exterior wall.
- the reinforcing layer On the thermal insulation board a reinforcing layer is applied with an inserted reinforcing fabric.
- the reinforcing layer consists of a 4 mm thick layer of a mineral plaster, which according to DIN EN 998-1 as a vapor-permeable coating must have a water vapor diffusion resistance coefficient ⁇ ⁇ 25.
- a silicate finishing coat of grain size K 1.5 according to DIN EN 15824 is applied to the reinforcing layer.
- the Fig. 1 and 2 in each case a cross-section through a building exterior wall 1 with an according to the state of the art running internal insulation can be seen.
- the building exterior wall 1 is made of masonry and is 24cm thick.
- a 10 cm thick thermal barrier coating 2 is formed, which comprises at least one thermal insulation panel 3.
- the figures show an example of the temperature profile 8 through the building exterior wall 1 at an interior temperature of 18.5 ° C and an outside temperature of - 9.5 ° C.
- a water vapor diffusion 10 is prevented by the building exterior wall, since inside a vapor barrier 11 is arranged.
- the vapor barrier 11 is very susceptible to damage and protection against condensation only guaranteed if the vapor barrier 11 remains permanently undamaged. If the film used as a vapor barrier 11, for example, by hammering a nail injured, water vapor can get into the structure of the building exterior wall 1 and precipitate as condensation.
- the building exterior wall 1 is moistened within its structure, because the location of the condensation water 9 is usually in the region of the boundary layer between the thermal insulation panel 3 and the building exterior wall 1 (see Fig. 2 ). However, a drying of the wall is prevented at the same time by the inside of the room applied vapor barrier 11.
- Fig. 2 shows an alternative embodiment of a known from the prior art interior insulation, which seeks to avoid the disadvantages of a vapor barrier 11. This is achieved by completely dispensing with a vapor barrier 11.
- a thermal insulation board 3 is used to form a thermal barrier coating 2, which is permeable and capillary active.
- the thermal insulation board is therefore suitable to absorb both water vapor, as well as moisture and to give them back to the interior via the capillary.
- the thermal insulation board 3 usually has a high moisture content and thus poor thermal insulation.
- the layer thickness of the thermal barrier coating 2 generally has to be increased. As a result, however, valuable residential or office space is lost.
- the above-mentioned disadvantages of internal insulation of a building exterior wall 1 can be remedied by using the method according to the invention or the system according to the invention.
- This is exemplary in the Fig. 3 shown.
- the plate thus has over conventional thermal insulation panels improved thermal insulation properties.
- such a plate is kapillarinattention, that is permeable to water vapor, but not for water.
- a vapor barrier 11 In order to prevent a condensation water within the structure of the building exterior wall 1, the formation or arrangement of a vapor barrier 11 according to the embodiment of the Fig. 1 required. If, on the other hand, a vapor barrier 11 is dispensed with, the use of a capillary-active thermal insulation board 3 is required.
- the present invention now goes new ways by proposing the use of a capillary active thermal insulation board 3 for internal insulation of a building exterior wall 1 vapor barrier 11, but at the same time waives a vapor barrier 11.
- the condensate in the present case is taken up by a moisture-regulating intermediate layer 6 which is formed between the thermal insulation panel 3 and the external building wall 1.
- an adhesive 4 is used, which is applied to the inside 5 of the building exterior wall 1 and / or on the surface 7 to be bonded to the thermal insulation board 3.
- the adhesive 4 not only absorbs the condensate, but stores it until the end of the dew period and then releases it back into the interior during the evaporation period by means of an opposite water vapor diffusion 10 '. In this case, a part of the moisture may also evaporate on the building exterior wall 1.
- the inventive method and the system according to the invention thus have the advantages that a highly heat-insulating capillary active thermal insulation board 3 small thickness can be used, which to a Space gain leads. Furthermore, it is possible to dispense with a damage-susceptible vapor barrier 11. This also increases the processing security. Finally, the adhesive 4 is used to form the moisture-regulating intermediate layer 6, which at the same time serves to secure the thermal insulation panel 3 to the inside 5 of the external building wall 1. In this respect, the inventive method or system requires no increased workload.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Finishing Walls (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011101261A DE102011101261A1 (de) | 2011-05-11 | 2011-05-11 | Verfahren und System zur Innendämmung von Gebäudeaußenwänden |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2522785A2 true EP2522785A2 (fr) | 2012-11-14 |
EP2522785A3 EP2522785A3 (fr) | 2014-06-18 |
EP2522785B1 EP2522785B1 (fr) | 2016-01-06 |
Family
ID=46177267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12167005.3A Active EP2522785B1 (fr) | 2011-05-11 | 2012-05-07 | Procédé et système d'isolation thermique intérieure de murs extérieurs de bâtiments |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2522785B1 (fr) |
DE (1) | DE102011101261A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015090616A1 (fr) * | 2013-12-20 | 2015-06-25 | Interbran Systems Ag | Panneau d'isolation thermique |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3081715B1 (fr) | 2015-04-17 | 2018-03-21 | STO SE & Co. KGaA | Dispositif d'application manuel d'une masse pâteuse et procédé de formation d'une couche adhésive |
DE102017010713A1 (de) | 2017-11-20 | 2019-05-23 | Sto Se & Co. Kgaa | Verfahren zur Herstellung einer gedämmten Wand |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4210392A1 (de) | 1991-03-30 | 1992-10-01 | Werner Neu | Waermedaemmplatte fuer den hochbau |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4216204A1 (de) * | 1992-05-15 | 1993-11-18 | Rainer Haug | Wärmedämmung für Gebäude |
DE19706223C2 (de) * | 1997-02-18 | 2000-11-30 | Cape Calsil Deutschland Gmbh | Wandsanierungsplatte für salzbelastete Mauern |
US20060032171A1 (en) * | 2004-07-27 | 2006-02-16 | Weir Charles R | Wall insulation system providing improved moisture control |
ATE404749T1 (de) * | 2006-07-19 | 2008-08-15 | Pavatex Sa | Holzweichfaserplatte für die raumseitige dämmung |
DE102008032738A1 (de) * | 2008-07-11 | 2010-01-21 | Christian Kadler | Wandverkleidung und ein Verfahren zum Trockenlegen einer Wandoberfläche |
-
2011
- 2011-05-11 DE DE102011101261A patent/DE102011101261A1/de not_active Ceased
-
2012
- 2012-05-07 EP EP12167005.3A patent/EP2522785B1/fr active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4210392A1 (de) | 1991-03-30 | 1992-10-01 | Werner Neu | Waermedaemmplatte fuer den hochbau |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015090616A1 (fr) * | 2013-12-20 | 2015-06-25 | Interbran Systems Ag | Panneau d'isolation thermique |
JP2017501322A (ja) * | 2013-12-20 | 2017-01-12 | インターブラン システムズ アーゲー | 断熱パネル |
Also Published As
Publication number | Publication date |
---|---|
EP2522785B1 (fr) | 2016-01-06 |
DE102011101261A1 (de) | 2012-11-15 |
EP2522785A3 (fr) | 2014-06-18 |
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