EP3115526A1 - Sealing of joints between insulating elements for building insulation - Google Patents
Sealing of joints between insulating elements for building insulation Download PDFInfo
- Publication number
- EP3115526A1 EP3115526A1 EP16178189.3A EP16178189A EP3115526A1 EP 3115526 A1 EP3115526 A1 EP 3115526A1 EP 16178189 A EP16178189 A EP 16178189A EP 3115526 A1 EP3115526 A1 EP 3115526A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cavity
- seal
- insulating
- building wall
- elements
- 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.)
- Pending
Links
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- 238000007789 sealing Methods 0.000 title claims description 36
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Images
Classifications
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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
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
- E04F13/0898—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with sealing elements between coverings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- 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
- E04B1/625—Sheets or foils allowing passage of water vapor but impervious to liquid water; house wraps
-
- 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
-
- 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
- E04B1/7645—Exterior insulation of exterior walls with ventilation means for the insulation
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
- E04B2/90—Curtain walls comprising panels directly attached to the structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/007—Outer coverings for walls with ventilating means
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0801—Separate fastening elements
- E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
- E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
- E04F13/083—Hooking means on the back side of the covering elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
- E04F13/0878—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer the basic insulating layer comprising mutual alignment or interlocking means
Definitions
- the invention relates to a device for sealing joints between insulating elements, which are used for the insulation of buildings.
- thermal insulation of existing building facades nowadays represents an important contribution to energy saving and thus to environmental protection.
- the reduction of transmission heat losses, ie losses caused by heat transfer through the building envelope can result in a subsequent reduction of the heating energy requirement of existing buildings.
- Such a reduction takes place for example by the insulation of the outer walls of the building by means of suitable insulation elements.
- suitable insulation elements are for example from the publication AT 512 629 B1 known.
- the object underlying the invention is therefore to provide an insulating element which allows both sufficient insulation and a quick removal of moisture in the cavities.
- the system has a first insulating element and at least one second insulating element, which are arranged in front of a building wall to be insulated in such a way that at least one first joint is formed between two adjacent insulating elements.
- the system further includes a first seal and a second seal disposed in the first joint between two adjacent insulation members such that a first cavity is formed in the first joint between the seals and the two adjacent insulation members, wherein in the second seal at least one opening for discharging water from the first cavity is arranged to the outside.
- the method comprises attaching a first seal and a second seal on at least one side surface of a first Dämmelements and suspending the first Dämmimplantations on the building wall by means of anchor elements.
- the method further comprises suspending a second insulating element on the building wall with the aid of anchoring elements such that at least one first joint is formed between the insulating elements and in the first joint between the seals and the insulating elements first cavity is created.
- the second seal at least one opening is provided for discharging water from the first cavity to the outside.
- FIGS. 1 to 4 all show the same insulating element or an arrangement of several similar insulating element on a building wall.
- FIG. 1 shows an isometric view of an insulating element.
- FIG. 2 is a similar representation of two adjacent stacked insulation elements 1 a and 1 b, which are each constructed the same.
- insulating elements for the insulation of facades are (approximately) cuboid, ie they have a back-facing main surface 12 facing the facade (see also FIG Fig. 3 ), a front side main surface 11 lying parallel thereto, and upper, lower and side (left side and right side) side surfaces.
- Fig. 1 is the right side surface with 13 and the upper side surface designated 14.
- Commercially available, prefabricated insulation elements are usually manufactured as a sandwich construction, ie two cover layers with intermediate insulation core. The cover layers can be made of wood, metal or plastic.
- At least one of the cover layers can be provided with a plaster layer.
- Many known insulation systems are laborious on the one hand in the production, on the other hand have a high weight and require for their attachment a lot of craftsmanship on the site.
- the assembly is associated with noise and pollution for residents of the building to be insulated. Since the sandwich constructions often also have a high proportion of window surfaces, their production is technically complex and correspondingly expensive.
- Insulating elements can be produced in a simpler and more favorable way by coating an insulating body of thermal insulation material at least partially (for example in the area of the corners and edges) with adhesive which, after curing, gives the insulating element a self-supporting structure (a "skeleton", so to speak).
- the material base contains substantially cement, sand and adhesion promoter).
- Such an insulating element is eg in the publication AT 512 629 B1 2 described.
- sealing strips 21 and 22 are used in the present example.
- the sealing tapes can be self-adhesive.
- Komprib also stop bands or waterstops
- Compriband is commonly understood to mean a precompressed, impregnated foam (e.g., polyurethane-based) sealant tape which slowly expands after insertion into a joint and fits snugly against the seam edges.
- Compribands are used, among other things, to ensure watertightness on facades and are available in various stress groups (defined, for example, in DIN 18542). Watertightness describes the ability of a building structure or gasket to resist rainwater and is e.g. defined in EN 12208.
- "tight" means that a desired watertightness is ensured.
- a first seal extends parallel to the edges of the front-side major surface 11.
- This seal is formed by at least one sealing band 22, for example a compression band.
- This sealing tape 22 is arranged along the edges of the front-side main surface 11 of the insulating element 1 and can either directly touch the edge or (as in Fig. 1 shown), so that a distance between the sealing strip 22 and the edge of the front-side main surface 11 is maintained.
- a second seal runs approximately parallel to the first seal and is formed by the sealing strip 21.
- the second sealing band 21 runs along the edge of the rear main surface 12 and touches the edge in the illustrated example, but this need not necessarily be the case.
- the sealing tape 21 may also be set back from the main back surface 12.
- an opening 31 can be provided in the front sealing band 22, through which water can be conducted from the interior of the cavity to the outside.
- a web 23 may be arranged between the two sealing bands 21 and 22, which web is realized, for example, by means of a relatively short piece of compressed tape.
- the web 23 may have a slope towards the opening 31, so that water is collected in the vertical cavity between the sealing bands 21 and 22 on the web 23 and discharged through the opening 31 to the outside.
- the web 23 divides the cavity 29 in the vertical joint in mutually sealed parts, so that a flow of air (which may affect the insulation effect) prevented.
- a further web 24 on the upper side surface 14 of an insulating element 1 (and in 1a, 1f in Fig. 2 ) Divide the cavity in the horizontal joint in mutually sealed parts, so that a passage of air through the horizontal joint 30 is prevented.
- waterlogging in the horizontal joint can flow off into at least one vertical joint and be discharged from there through the opening 31.
- the relatively small opening 31 is unproblematic.
- the opening 31 may be realized by a recess in the sealing strip 22. It can also be used with water-permeable material, e.g. Damp wool be lined, whereby a flow of air through the opening 31 braked and insects are prevented from entering, but water can flow. In this context, an opening is present and "open" when water (at least slowly) can drain.
- FIG. 3 is a side view of the suspension of the insulating elements 1, 1a, 1 b, etc., shown on a building wall 2.
- the insulating elements by means of anchor elements 41 and 42 are attached to the wall 2.
- Anchor elements 42 are fixed to the insulating element, while anchoring elements 41 (eg anchor channels) attached to the wall 2 (usually screwed) are.
- anchoring elements 41 eg anchor channels
- Different variants of the installation of a Dämmelements 1 on a building wall are known and are therefore not explained in detail.
- the in Fig. 3 shown side view are also two levels A and B located, which are substantially parallel to the building wall 2.
- the sealing strips 22 and 21 extend substantially along the line of intersection formed by a section of an insulating element with the plane A and B, wherein the most visible, front-side main surface 11 of the insulating elements 1 (or 1a, ..., 1f) also is substantially parallel to the building wall 2.
- a cavity 40 which in Fig. 3 designated by the numeral 35.
- 23 (drainage) openings 32 may be disposed in the rear seal so that water from the cavity 40 behind the insulating elements through the openings 32 in the vertically extending Grooves (ie in the cavity between the sealing bands 21 and 22) and from there (via the openings 31) can be derived to the outside.
- the vertically extending Grooves ie in the cavity between the sealing bands 21 and 22
- the openings 31 via the openings 31
- Dämm implant 1a to 1f be arranged obliquely extending webs 25, with the aid of which water can be collected and directed to the openings 32 in the sealing strips 22.
- the openings 32 in the rear sealing strips 22 are approximately at the upper edge of the inclined webs 25 (see side view in Fig. 4 ).
- the webs 25 can be realized, for example, with the help of Komprib Sn.
- the drainage from the cavity 40 may also be otherwise realized so that the sloping lands 25 and the openings 32 are merely optional.
- FIG. 4 shows a front view of a series of juxtaposed insulating elements 1a, 1 b, 1c, 1d, 1e and 1f.
- the front-side main surfaces of the insulating elements 1a to 1f and the front-side sealing strips 22 in the joints between the insulating elements Shown are also the openings 31 which are arranged in the sealing bands 22 in the vertical joints.
- On the left and right of the insulating elements is a part of the anchor rails 42 can be seen, in which the insulating elements 1a to 1f with their anchor elements 41 (in Fig. 4 covered, but see Fig. 3 ) are mounted.
- the inclined webs 25 are shown in dashed lines, where they are hidden by the insulating elements.
- the cavity 40 between insulating elements 1 a, 1 b, ... 1f divided by the substantially extending from left to right webs 25 in the vertical direction z into several parts.
- substantially from top to bottom (eg vertical) extending webs 26 the cavity 40 is divided in the horizontal direction x into several parts, so that essentially per insulating element (or per group of insulation elements) in an horizontal direction x and vertical direction z delimited cavity segment arises.
- the webs 26 can also be realized with the aid of compression ribbons, but other materials (eg clamping felt) can also be used.
- the webs 25 need not necessarily extend over the entire wall along an oblique line.
- the webs 25 extend only partially along an oblique line from right to left, and in the adjacent section follows the same bridge (in Fig. 4 with 25 '), but offset laterally (horizontally).
- the system for building insulation on a first insulating element and at least a second insulating element (see, eg Fig. 2 and Fig. 4 , Paragraph 1a and 1 b) which are arranged in front of a building wall to be insulated 2 such that at least one first joint (eg vertically extending joint 29, see Fig. 1 ) between two adjacent insulating elements 1 a, 1 b is formed.
- first joint eg vertically extending joint 29, see Fig. 1
- the system further comprises a first seal 21 and a second seal 22, which in the first joint between two adjacent insulating elements 1a, 1 b are arranged such that in the first joint between the seals and the two adjacent Dämmimplantationn 1 a, 1 b, a first cavity is formed, wherein in the second seal 22 at least one opening 21 for discharging water from the first cavity is arranged to the outside ,
- the first joint eg vertically extending joint 29
- at least one web 23 can be arranged, which is arranged in the first cavity such that it conducts water to the opening 31.
- the at least one web 23 can be realized by a sealing tape, for example by a Kompriband.
- first seal 21 and the second seal 22 may be constructed by means of sealing strips, for example, Komprib or provided. Both seals 21 and 22 are respectively clamped between two adjacent insulating elements and the resulting clamping forces act substantially parallel to the building wall 2 act (and thus also parallel to the front main surface 11 of the insulating elements).
- the web 23 not only diverts the water, but may also hinder air circulation in the cavity 29 formed in the vertical joint. Even in the cavities formed in the horizontally extending joints 30 between the seals 21 and 22, webs 24 which extend between the two seals 21 and 22, obstruct air circulation.
- the first seal 21 is arranged on the side of the first joint (eg vertical joint 29) facing the building wall 2, whereas the second seal 22 is arranged on the side of the first joint facing away from the building wall 2.
- the insulating elements 1 a, 1 b, ... 1 f can be arranged in front of the building wall 2, that between the insulating elements 1a, 1 b, ... 1 f and the building wall 2, a second cavity 40 is formed.
- at least one further opening 32 may be arranged in the first seal 21.
- At least one further web 25 can be arranged obliquely and with respect to the at least one further opening 32 such that it collects water and at least another opening 32 in the first seal 21 passes. So water can flow from the cavity behind the insulation elements in the cavities in the vertical joints between the insulation elements and be discharged from there to the outside.
- the at least one further web 25 extends substantially from left to right, so that it divides the second cavity 40 in the vertical direction into at least two parts, whereby an air flow through the second cavity 40 is at least hindered.
- the second cavity 40 between the building wall 2 and the insulating elements may further be arranged further extending from top to bottom webs 26 which divide the second cavity 40 in the vertical direction into at least two parts.
- the webs 25 and 26 divide the cavity 40 behind the insulation elements into several closed segments, whereby air circulation is hindered.
- An example of the invention relates to a method for insulating a building wall.
- the method comprises attaching a first seal and a second seal on at least one side surface of a first Dämmelements and suspending the first Dämmimplantations on the building wall by means of anchor elements.
- the method further comprises suspending a second insulating element on the building wall with the aid of anchoring elements such that at least one first joint is formed between the insulating elements and a first cavity is formed in the first joint between the seals and the insulating elements.
- In the second seal at least one opening is provided for discharging water from the first cavity to the outside.
- the first and second seals 21, 22 can each be fastened along a line which lies substantially parallel to a front-side main surface of the insulating element.
- the first and second seals 21, 22 are clamped between the two insulating elements 1 a, 1 b, the force vectors of the resulting clamping forces lying substantially parallel to the front main surface.
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Abstract
Es wird ein System zur Gebäudedämmung beschrieben. Gemäß den hier beschriebenen Ausführungsbeispielen weist das System ein erstes Dämmelement und mindestens ein zweites Dämmelement auf, welche vor einer zu dämmenden Gebäudewand derart angeordnet sind, dass mindestens eine erste Fuge zwischen zwei benachbarten Dämmelementen gebildet wird. Das System weist des Weiteren eine erste Dichtung und eine zweite Dichtung auf, die in der ersten Fuge zwischen zwei benachbarten Dämmelementen derart angeordnet sind, dass in der ersten Fuge zwischen den Dichtungen und den zwei benachbarten Dämmelementen ein erster Hohlraum entsteht, wobei in der zweiten Dichtung mindestens eine Öffnung zur Ableitung von Wasser aus dem ersten Hohlraum nach außen angeordnet ist.A system for building insulation is described. According to the exemplary embodiments described here, the system has a first insulating element and at least one second insulating element, which are arranged in front of a building wall to be insulated in such a way that at least one first joint is formed between two adjacent insulating elements. The system further includes a first seal and a second seal disposed in the first joint between two adjacent insulation members such that a first cavity is formed in the first joint between the seals and the two adjacent insulation members, wherein in the second seal at least one opening for discharging water from the first cavity is arranged to the outside.
Description
Die Erfindung bezieht sich auf eine Vorrichtung zur Abdichtung von Fugen zwischen Dämmelementen, welche zur Dämmung von Gebäuden verwendet werden.The invention relates to a device for sealing joints between insulating elements, which are used for the insulation of buildings.
Die wärmeschutztechnische Verbesserung von bestehenden Gebäudefassaden stellt heutzutage einen wichtigen Beitrag zur Energieeinsparung und damit zum Umweltschutz dar. Insbesondere lässt sich durch die Reduzierung von Transmissionswärmeverlusten, also von Verlusten, die durch Wärmeübertragung durch die Gebäudehülle entstehen, eine nachträgliche Reduzierung des Heizenergiebedarfs bestehender Bausubstanz erreichen. Eine solche Reduzierung erfolgt beispielsweise durch die Dämmung der Außenwände der Gebäude durch geeignete Dämmelemente. Geeignete Dämmelemente sind beispielsweise aus der Publikation
Bei Neubauten ist eine Dämmung verhältnismäßig leicht zu integrieren, jedoch ist die nachträgliche Dämmung von Altbauten problematischer. Gebräuchlich sind vor allem auf bestehende Gebäudewände geklebte Wärmedämm-Verbundsysteme. Bei allen Systemen ist es wichtig, dass zwischen der bestehenden Wand und den Dämmelementen keine Hinterlüftung passiert, da sonst die Dämmwirkung nicht in ausreichendem Maße gegeben ist. Die Anbringung von Dämmelementen an eine bestehende Wand führt in der Regel dazu, dass zwischen der bestehenden Außenwand des Gebäudes und dem Dämmelement mehr oder weniger große Hohlräume entstehen. Durch Temperaturschwankungen kann es in diesem Hohlraum zur Bildung von Feuchtigkeit kommen. Auch das geringfügige Eindringen von Regenwasser in die Hohlräume durch Lücken in der nachträglichen Isolierung ist nicht auszuschließen. Diese Feuchtigkeit, sofern sie nicht zügig abtrocknet, kann beispielsweise zur Schimmelbildung beitragen und somit langfristig Schäden am Bauwerk hervorrufen. Zwischen einer effektiven (möglichst dichten) Isolierung und einer Verhinderung von Staunässe hinter den Dämmelementen oder in Fugen zwischen zwei benachbarten Dämmelementen besteht ein Zielkonflikt.In new buildings an insulation is relatively easy to integrate, however, the subsequent insulation of old buildings is more problematic. Commonly used on existing building walls glued composite thermal insulation systems. In all systems, it is important that no rear ventilation occurs between the existing wall and the insulation elements, since otherwise the insulation effect is not sufficiently given. The attachment of insulating elements to an existing wall usually results in more or less large voids being created between the existing outer wall of the building and the insulating element. Temperature fluctuations can lead to the formation of moisture in this cavity. Even the slight penetration of rainwater into the cavities through gaps in the subsequent insulation can not be excluded. This moisture, if it does not dry quickly, for example, contribute to mold growth and thus cause long-term damage to the building. Between one effective (preferably dense) insulation and prevention of waterlogging behind the insulation elements or in joints between two adjacent insulation elements is a conflict of objectives.
Die der Erfindung zugrunde liegende Aufgabe besteht folglich darin, ein Dämmelement bereit zu stellen, welches sowohl eine ausreichende Isolierung als auch ein schnelles Beseitigen von Feuchtigkeit in den Hohlräumen ermöglicht.The object underlying the invention is therefore to provide an insulating element which allows both sufficient insulation and a quick removal of moisture in the cavities.
Es wird ein System zur Gebäudedämmung beschrieben. Gemäß den hier beschriebenen Ausführungsbeispielen weist das System ein erstes Dämmelement und mindestens ein zweites Dämmelement auf, welche vor einer zu dämmenden Gebäudewand derart angeordnet sind, dass mindestens eine erste Fuge zwischen zwei benachbarten Dämmelementen gebildet wird. Das System weist des Weiteren eine erste Dichtung und eine zweite Dichtung auf, die in der ersten Fuge zwischen zwei benachbarten Dämmelementen derart angeordnet sind, dass in der ersten Fuge zwischen den Dichtungen und den zwei benachbarten Dämmelementen ein erster Hohlraum entsteht, wobei in der zweiten Dichtung mindestens eine Öffnung zur Ableitung von Wasser aus dem ersten Hohlraum nach außen angeordnet ist.A system for building insulation is described. According to the exemplary embodiments described here, the system has a first insulating element and at least one second insulating element, which are arranged in front of a building wall to be insulated in such a way that at least one first joint is formed between two adjacent insulating elements. The system further includes a first seal and a second seal disposed in the first joint between two adjacent insulation members such that a first cavity is formed in the first joint between the seals and the two adjacent insulation members, wherein in the second seal at least one opening for discharging water from the first cavity is arranged to the outside.
Des Weiteren wird ein Verfahren zur Dämmung einer Gebäudewand beschrieben. Gemäß den hier beschriebenen Ausführungsbeispielen umfasst das Verfahren das Befestigen einer ersten Dichtung und einer zweiten Dichtung an mindestens einer Seitenfläche eines ersten Dämmelements sowie das Aufhängen des ersten Dämmelementes an der Gebäudewand mit Hilfe von Ankerelementen. Das Verfahren umfasst des Weiteren das Aufhängen eines zweiten Dämmelementes an der Gebäudewand mit Hilfe von Ankerelementen derart, dass mindestens eine erste Fuge zwischen den Dämmelementen gebildet wird und in der ersten Fuge zwischen den Dichtungen und den Dämmelementen ein erster Hohlraum entsteht. In der zweiten Dichtung wird mindestens eine Öffnung vorgesehen zur Ableitung von Wasser aus dem ersten Hohlraum nach außen.Furthermore, a method for insulating a building wall is described. According to the embodiments described herein, the method comprises attaching a first seal and a second seal on at least one side surface of a first Dämmelements and suspending the first Dämmelementes on the building wall by means of anchor elements. The method further comprises suspending a second insulating element on the building wall with the aid of anchoring elements such that at least one first joint is formed between the insulating elements and in the first joint between the seals and the insulating elements first cavity is created. In the second seal at least one opening is provided for discharging water from the first cavity to the outside.
Die Erfindung wird nachfolgend anhand von den in den Abbildungen dargestellten Beispielen näher erläutert. Die Abbildungen sind nicht maßstabsgetreu und zeigen nur jene Aspekte, die für die folgende Beschreibung und im Hinblick auf die der Erfindung zugrunde liegenden Prinzipien relevant sind. In den Abbildungen zeigen:
Figur 1- eine isometrische Darstellung eines Dämmelements mit umlaufenden Dichtbändern zur Abdichtung der Fugen zwischen dem Dämmelement und benachbarten Dämmelementen;
Figur 2- eine isometrische Darstellung zweier benachbarter Dämmelemente gemäß
Fig. 1 ; Figur 3- eine Seitenansicht eines an einer Fassade montierten Dämmelementes mit umlaufenden Dichtbändern zur Abdichtung der Fugen zwischen dem Dämmelement und benachbarten Dämmelementen sowie mit Dichtbändern zwischen Dämmelement und Gebäudewand;
- Figur 4
- eine Vorderansicht mit mehreren an einer Fassade montierten Dämmelementen mit in den Fugen zwischen benachbarten Elementen angeordneten Dichtbändern.
- FIG. 1
- an isometric view of a Dämmelements with circumferential sealing bands for sealing the joints between the insulating element and adjacent insulation elements;
- FIG. 2
- an isometric view of two adjacent insulation elements according to
Fig. 1 ; - FIG. 3
- a side view of a mounted on a facade insulation element with circumferential sealing strips for sealing the joints between the insulation element and adjacent insulation elements and with sealing strips between the insulation element and the building wall;
- FIG. 4
- a front view with a plurality of mounted on a facade insulation elements arranged in the joints between adjacent elements sealing strips.
In den Figuren bezeichnen gleiche Bezugszeichen gleiche oder ähnliche Komponenten mit jeweils gleicher oder ähnlicher Bedeutung. Die
Bei der Montage von Dämmelementen entsteht eine zwischen zwei benachbarten Dämmelementen eine Fuge, welche abgedichtet werden muss, um eine ausreichende Wärmedämmung der Fassade zu gewährleisten. Zu diesem Zweck werden im vorliegenden Beispiel Dichtungsbänder 21 und 22 verwendet.When installing insulation elements creates a gap between two adjacent insulation elements, which must be sealed to ensure adequate thermal insulation of the facade. For this purpose,
Die Dichtungsbänder können selbstklebend ausgeführt sein. Als Dichtungsbänder kommen z.B. sogenannte Kompribänder (auch Anschlagbänder oder Fugenbänder) in Betracht. Unter einem Kompriband versteht man üblicherweise ein vorkomprimiertes, imprägniertes Dichtungsband aus Schaumstoff (z.B. auf Basis von Polyurethan), welches nach dem Einbringen in eine Fuge langsam expandiert und sich dicht an die Fugenränder anlegt. Kompribänder dienen unter anderem zur Gewährleistung der Schlagregendichtheit an Fassaden und sind in verschiedenen Beanspruchungsgruppen (definiert z.B. im DIN 18542) erhältlich. Die Schlagregendichtheit beschreibt die Fähigkeit einer Baukonstruktion oder einer Dichtung, Regenwasser zu widerstehen und ist z.B. in EN 12208 definiert. Betreffend die Abdichtung der Fugen zwischen Dämmelementen wird unter "dicht" verstanden, dass eine gewünschte Schlagregendichtheit gewährleistet wird.The sealing tapes can be self-adhesive. As sealing tapes, e.g. so-called Kompribänder (also stop bands or waterstops) into consideration. Compriband is commonly understood to mean a precompressed, impregnated foam (e.g., polyurethane-based) sealant tape which slowly expands after insertion into a joint and fits snugly against the seam edges. Compribands are used, among other things, to ensure watertightness on facades and are available in various stress groups (defined, for example, in DIN 18542). Watertightness describes the ability of a building structure or gasket to resist rainwater and is e.g. defined in EN 12208. Regarding the sealing of the joints between insulating elements, "tight" means that a desired watertightness is ensured.
Gemäß dem vorliegenden Beispiel verläuft eine erste Dichtung parallel zu den Kanten der vorderseitigen Hauptfläche 11. Diese Dichtung wird durch mindestens ein Dichtungsband 22, z.B. einem Kompriband gebildet. Dieses Dichtungsband 22 ist entlang der Kanten der vorderseitigen Hauptfläche 11 des Dämmelementes 1 angeordnet und kann entweder direkt die Kante berühren oder (wie in
Durch die parallele Anordnung der beiden Dichtungsbänder 21 und 22 entstehen in der Fuge Hohlräume, die einerseits von den Dichtungsbändern 21 und 22 und andererseits von zwei einander zugewandten Seitenflächen benachbarter Dämmelemente (siehe z.B.
Um die Drainage zu verbessern, kann zwischen den beiden Dichtungsbändern 21 und 22 ein Steg 23 angeordnet sein, der beispielsweise mit Hilfe eines relativ kurzen Stücks Kompriband realisiert wird. Der Steg 23 kann zur Öffnung 31 hin ein Gefälle aufweisen, sodass Wasser im senkrecht verlaufenden Hohlraum zwischen den Dichtungsbändern 21 und 22 am Steg 23 aufgefangen und durch die Öffnung 31 nach außen abgeleitet wird. Gleichzeitig unterteilt der Steg 23 den Hohlraum 29 in der vertikalen Fuge in gegeneinander abgedichtete Teile, sodass ein Durchströmen von Luft (was die Dämmwirkung beeinträchtigen kann) verhindert. In gleicher Weise kann ein weiterer Steg 24 auf der oberen Seitenfläche 14 eines Dämmelementes 1 (sowie in 1a, 1f in
Im Hinblick auf die gewünschte Schlagregendichtheit ist die verhältnismäßig kleine Öffnung 31 unproblematisch. Die Öffnung 31 kann durch eine Aussparung in dem Dichtband 22 realisiert sein. Sie kann auch mit wasserdurchlässigem Material wie z.B. Dämmwolle ausgekleidet sein, wodurch ein Luftstrom durch die Öffnung 31 gebremst und ein Eindringen von Insekten verhindert werden, Wasser jedoch abfließen kann. In diesem Zusammenhang ist eine Öffnung dann vorhanden und "offen", wenn Wasser (zumindest langsam) abfließen kann.With regard to the desired watertightness, the relatively
In
Zwischen Gebäudewand 2 und den rückseitigen Hauptflächen der Dämmelemente bleibt ebenfalls ein Hohlraum 40, der in
Wie anhand von
In der Vorderansicht gemäß
In der Folge werde einige Aspekte bzw. Merkmale der beschriebenen Ausführungsbeispiele unter Bezugnahme auf die
Gemäß einem Ausführungsbeispiel ist die erste Dichtung 21 auf der der Gebäudewand 2 zugewandten Seite der ersten Fuge (z.B. vertikale Fuge 29) angeordnet, wohingegen die zweite Dichtung 22 auf der der Gebäudewand 2 abgewandten Seite der ersten Fuge angeordnet ist. Die Dämmelemente 1a, 1 b, ... 1 f können so vor der Gebäudewand 2 angeordnet sein, dass zwischen den Dämmelementen 1a, 1 b, ... 1 f und der Gebäudewand 2 ein zweiter Hohlraum 40 gebildet wird. Um Wasser aus dem zweiten Hohlraum 40 in den ersten Hohlraum (in der vertikalen Fuge) abzuleiten, kann gemäß einem Ausführungsbeispiel in der ersten Dichtung 21 mindestens eine weitere Öffnung 32 angeordnet sein. In dem zweiten Hohlraum 40 (zwischen Gebäudewand 2 und den Dämmelementen 1a, 1b, ...,1f) kann mindestens ein weiterer Steg 25 schräg und in Bezug auf die mindestens eine weitere Öffnung 32 derart angeordnet sein, dass er Wasser auffängt und zu der mindestens einen weiteren Öffnung 32 in der ersten Dichtung 21 leitet. Wasser kann also von dem Hohlraum hinter den Dämmelementen in die Hohlräume in den vertikalen Fugen zwischen den Dämmelementen abfließen und von dort nach außen abgeleitet werden.According to one exemplary embodiment, the
Der mindestens eine weitere Steg 25 verläuft im Wesentlichen von links nach rechts, sodass er den zweiten Hohlraum 40 in vertikaler Richtung in mindestens zwei Teile teilt, wodurch eine Luftströmung durch den zweiten Hohlraum 40 zumindest behindert wird. In dem zweiten Hohlraum 40 zwischen Gebäudewand 2 und den Dämmelementen können des Weiteren zusätzliche, von oben nach unten verlaufende Stege 26 angeordnet sein, welche den zweiten Hohlraum 40 in vertikaler Richtung in mindestens zwei Teile teilen. Zusammen unterteilen die Stege 25 und 26 den Hohlraum 40 hinter den Dämmelementen in mehrere abgeschlossene Segmente, wodurch eine Luftzirkulation behindert wird.The at least one
Ein Beispiel der Erfindung betrifft ein Verfahren zur Dämmung einer Gebäudewand. Gemäß den hier beschriebenen Ausführungsbeispielen umfasst das Verfahren das Befestigen einer ersten Dichtung und einer zweiten Dichtung an mindestens einer Seitenfläche eines ersten Dämmelements sowie das Aufhängen des ersten Dämmelementes an der Gebäudewand mit Hilfe von Ankerelementen. Das Verfahren umfasst des Weiteren das Aufhängen eines zweiten Dämmelementes an der Gebäudewand mit Hilfe von Ankerelementen derart, dass mindestens eine erste Fuge zwischen den Dämmelementen gebildet wird und in der ersten Fuge zwischen den Dichtungen und den Dämmelementen ein erster Hohlraum entsteht. In der zweiten Dichtung wird mindestens eine Öffnung vorgesehen zur Ableitung von Wasser aus dem ersten Hohlraum nach außen.An example of the invention relates to a method for insulating a building wall. According to the embodiments described herein, the method comprises attaching a first seal and a second seal on at least one side surface of a first Dämmelements and suspending the first Dämmelementes on the building wall by means of anchor elements. The method further comprises suspending a second insulating element on the building wall with the aid of anchoring elements such that at least one first joint is formed between the insulating elements and a first cavity is formed in the first joint between the seals and the insulating elements. In the second seal at least one opening is provided for discharging water from the first cavity to the outside.
Die erste und die zweite Dichtung 21, 22 können jeweils entlang einer Linie befestigt werden, welche im Wesentlichen parallel zu einer vorderseitigen Hauptfläche des Dämmelementes liegt. Durch das Aufhängen des zweiten Dämmelementes 1 b werden die erste und die zweite Dichtung 21, 22 zwischen den beiden Dämmelementen 1a, 1 b geklemmt, wobei die Kraftvektoren der dabei entstehenden Klemmkräfte im Wesentlichen parallel zur vorderseitigen Hauptfläche liegen.The first and
Claims (15)
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ATA50605/2015A AT517223B1 (en) | 2015-07-09 | 2015-07-09 | Joint seal between insulation elements for building insulation |
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EP16178189.3A Pending EP3115526A1 (en) | 2015-07-09 | 2016-07-06 | Sealing of joints between insulating elements for building insulation |
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IT201800003946A1 (en) * | 2018-03-26 | 2019-09-26 | Bonassi S N C Di Bonassi Aldo E Mauro & C | PREFABRICATED PANEL FOR BUILDING INSULATION |
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US5987835A (en) * | 1997-02-27 | 1999-11-23 | Santarossa; Ned | Exterior insulating finish panel system |
US20030046888A1 (en) * | 2001-09-10 | 2003-03-13 | Ryan Michael W. | Secondary moisture drainage system for structures having pre-manufactured exterior cladding systems |
CN201635308U (en) * | 2009-12-24 | 2010-11-17 | 上海市建工设计研究院有限公司 | Multi-channel exhausting-prevention waterproof structure of prefabricated external wallboards |
-
2015
- 2015-07-09 AT ATA50605/2015A patent/AT517223B1/en active
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2016
- 2016-07-06 EP EP16178189.3A patent/EP3115526A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US5987835A (en) * | 1997-02-27 | 1999-11-23 | Santarossa; Ned | Exterior insulating finish panel system |
US20030046888A1 (en) * | 2001-09-10 | 2003-03-13 | Ryan Michael W. | Secondary moisture drainage system for structures having pre-manufactured exterior cladding systems |
CN201635308U (en) * | 2009-12-24 | 2010-11-17 | 上海市建工设计研究院有限公司 | Multi-channel exhausting-prevention waterproof structure of prefabricated external wallboards |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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IT201800003946A1 (en) * | 2018-03-26 | 2019-09-26 | Bonassi S N C Di Bonassi Aldo E Mauro & C | PREFABRICATED PANEL FOR BUILDING INSULATION |
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AT517223A4 (en) | 2016-12-15 |
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