EP0103097A2 - Mur à double paroi - Google Patents

Mur à double paroi Download PDF

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Publication number
EP0103097A2
EP0103097A2 EP83106752A EP83106752A EP0103097A2 EP 0103097 A2 EP0103097 A2 EP 0103097A2 EP 83106752 A EP83106752 A EP 83106752A EP 83106752 A EP83106752 A EP 83106752A EP 0103097 A2 EP0103097 A2 EP 0103097A2
Authority
EP
European Patent Office
Prior art keywords
barrier
masonry
masonry according
inner shell
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83106752A
Other languages
German (de)
English (en)
Other versions
EP0103097B1 (fr
EP0103097A3 (en
Inventor
Jürgen Dipl.-Kfm. Dering
Hans-Peter Hahn
Klaus Schmidt
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.)
Ytong AG
Original Assignee
Ytong AG
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 Ytong AG filed Critical Ytong AG
Publication of EP0103097A2 publication Critical patent/EP0103097A2/fr
Publication of EP0103097A3 publication Critical patent/EP0103097A3/de
Application granted granted Critical
Publication of EP0103097B1 publication Critical patent/EP0103097B1/fr
Expired 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
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4178—Masonry wall ties
    • E04B1/4185—Masonry wall ties for cavity walls with both wall leaves made of masonry

Definitions

  • the invention relates to a two-layer masonry with an outer shell and an inner shell arranged at a certain distance from the outer shell, the masonry shells being connected to one another by wire anchors.
  • the masonry standard DIN 1053 differentiates between double-walled masonry with an air layer and double-walled masonry without an air layer.
  • the air layer should be at least 6 cm thick. If an additional mat-shaped or plate-shaped thermal insulation layer is arranged on the outside of the inner shell, the clear distance between the masonry shells must not exceed 12 cm.
  • Double-layer masonry with an air layer is usually arranged where special protection of the masonry against driving rain is to be achieved. Due to the arrangement of the thermal insulation layer, this blow rain safety cannot be reduced. In the case of double-layer masonry with an air layer, it is assumed that moisture diffusing through from the interior can be removed through the air layer.
  • the thermal insulation layer must not result in damage due to water vapor condensation in individual layers.
  • the standard regulations therefore have the particular purpose of protecting the inner shell against moisture accumulation, because water penetrating into the air spaces of the building material significantly deteriorates the insulation behavior.
  • the inner shell should regulate the air humidity in the interior by means of temporary moisture absorption and discharge excess moisture to the outside.
  • the masonry construction has the opposite function of repelling rain, but allowing moisture to diffuse outwards in the vapor state. This function is to be ensured by the rear-ventilated, curtain-walled or pre-bricked weather shell (outer shell).
  • the water that has penetrated through the facing wall should drain off on the inside of this wall and be directed outwards again at the foot of the wall through the openings prescribed there.
  • eyelets are provided in the anchor or drip disks or similar elements are attached to the anchor. Nevertheless, it has been observed that the thermal insulation layer and the masonry are damp, even if the insulating material is equipped with a water-blocking layer.
  • the double-layer masonry with rear-ventilated facing shell also requires a high level of craftsmanship that can currently only rarely be guaranteed. When bricking up, lumps of mortar must not fall into the air space, where they can create moisture-conducting connections between the outer and inner shell.
  • the outer shell In the case of double-layer masonry in accordance with DIN 1053 without an air layer, the outer shell must be bricked with full joints and adhesive.
  • the shell joint between the outer and inner shell should be 2 cm thick and should be grouted in layers with mortar.
  • the mortar disc created by potting the shell joint must not be interrupted.
  • the inner shell of this masonry must be sufficiently heat-insulating.
  • the mortar slice should ensure tightness against water penetrating from the outside, but still be permeable to water vapor.
  • the double-layer masonry without an air layer which requires little space due to the relatively thin mortar disc, requires even more careful manual work. The investigation of the many moisture damage occurring in the recent past has shown that there was usually a lack of due care in masonry.
  • penetrating water especially if it is closed-cell foam plastics, could be passed unhindered on the butt joint and enter the walling there, or the penetrating water could become damp penetrate sensitive insulation materials.
  • a particularly sensitive point for penetrating water is also the point at which the wall anchors are pushed through the insulation layer. Since the position of the wall anchors in the rear wall shell is often fixed so that they do not match the bed joint of the front wall shell, they are then additionally bent, which leads to an expansion of the penetration point. The usual drip discs are not sufficient to cover these areas. The area must rather be covered over a large area with great effort.
  • the object of the invention is to create a two-layer masonry with the smallest possible distance between the shells, which optimally fulfills the masonry's requirements with regard to moisture and does not require any special manual skills for its construction.
  • the double-layer masonry according to the invention has the outer shell 1 and the inner shell 2.
  • the inner shell 2 should expediently consist of a good thermal insulation building material. Gas concrete blocks or gas concrete block 3 are preferably used.
  • the outer shell 1 can also consist of conventional building materials.
  • An air gap 4 is provided between the inner shell 2 and the outer shell 1. The thickness of the air gap is advantageously about 2 cm.
  • the masonry shells 1 and 2 are connected to wire anchors 5 made of stainless steel.
  • the vertical distance between the wire anchors 5 should generally be 25 cm and the horizontal distance 75 cm.
  • the structure of the masonry should also comply with the other regulations of DIN 1053. For this reason, there is no need to describe the special other features of such masonry.
  • Each wire anchor 5 expediently sits at one end in a joint 6 of the inner shell 2, the joint 6 with a mortar joint 7 of the outer shell 1, in which the other end of the wire anchor is located, should lie at least in a horizontal plane; it can preferably be provided that the wire anchor 5 has a slight slope to the outer shell 1 in the gap 4.
  • a horizontally extending thin barrier sheet 8 which consists of a water-repellent, however, sits on a horizontal row of wire anchors water vapor permeable fabric.
  • the invention provides that incisions 10 of the same length preferably go vertically upward from the lower edge 9 in each barrier sheet; the lateral spacing of the incisions 10 preferably corresponds to the lateral spacing of adjacent wire anchors.
  • the barrier track can expediently also have several or numerous incisions 10, which are set closer (e.g. at a 2-5 cm distance) than the normalized distance of the wire anchors. This embodiment facilitates the montago if, as is often the case, the anchor spacing is different.
  • the position of the incisions 10 is such that the vertical distance of the base point 11 of an incision 10 from the upper edge 12 of the barrier sheet is slightly smaller than the vertical distance between two horizontal rows of wire anchors.
  • this paragraph corresponds tand 'the perpendicular distance of the wire anchors rows. It must not be less than the distance of the base points 11 from the lower edge 9 of the subsequent tracks arranged above the respective track.
  • Such prepared barrier sheets are placed according to the invention on a row of wire anchors such that the wire anchors 5 pass through the incisions 10 and preferably the base points 11 of the incisions 10 rest on the wire anchors, each barrier sheet 8 having an inclination towards the outer shell from the upper edge 12 to the lower edge 9 ( Gradient).
  • This arrangement ensures that the barrier tracks 8 are positioned in a shingle-like manner (shingled) with respect to one another, the slot area 13 of a barrier track covering the area of the / top edge 12 overlaps the following trajectory. In this way, the entire wall is completely covered and protected against water coming from outside.
  • the vertical joints 14 of the inner shell 2 can be covered by providing a lateral protrusion 15 in the lateral end region of a barrier sheet next to the last wire anchor 5 for this sheet (FIG. 2).
  • Barrier sheets suitable for the purposes of the invention should be fabric sheets impregnated with bitumen; Sheets of bitumen felt or bitumen cork felt known per se are outstandingly suitable. Such sheets are used as insulation materials for sound and heat insulation. They are made from long-fiber, organic materials such as hemp, jute, coconut and wood fibers and mixed together to form an elastic fleece. The subsequent impregnation with bitumen creates a supple and very resistant insulation mat. Bitumen cork felt also contains expanded cork shot. This makes the mat structure looser and more elastic.
  • bituminized glass fiber felt mats are very suitable.
  • Bituminized cardboard especially ribbed cardboard, can also be used.
  • the material of the fabric in particular the bitumen, nestles or flows plastically in the slot area around a wire anchor in such a way that the contact point is at least water-repellent, preferably "watertight".
  • Products impregnated with bitumen ensure such a "watertight" condition of the contact point, which is why the selection of these substances surprisingly leads to an optimal water barrier without further Precautions such as drip disks, drip noses or dg l . at anchor are required.
  • the thickness of a barrier sheet is preferably about 2 to 8 mm.
  • the shingle-like arrangement of the sheets advantageously ensures that air spaces (not shown in detail) remain free in the air gap 4, which to a certain extent ensure air layer functions, in particular rear ventilation, in addition to the barrier action of the barrier sheets, so that in the air gap 4, which should preferably be about 2 cm thick, provides excellent protection of the inner shell against water penetrating from the outside.
  • the air gap 4 is drawn disproportionately thick, so that the invention better in terms of drawing. can be clarified.
  • the webs 8 can be guided from the inner shell 2 to the outer shell 1 in such a way that each web touches both shells without the function of the shell joint being impaired.
  • Water penetrating through the outer shell to the barrier membrane runs off the barrier membrane and, due to the shingle-like arrangement of the membrane, runs to the base of the masonry, from where it is derived in a manner known per se.
  • the anchors no longer form a weak point with respect to the water pipe, because the bitumen in the barrier membrane provides an effective seal. Moisturization of the inner shell is completely prevented.
  • the invention can also be used in cases in which additional insulation with an air layer is provided by arranging the barrier sheets according to the invention in front of the insulation. If necessary. the barrier sheet arrangement according to the invention can also be provided in front of a core insulation without an air layer.
  • the barrier sheets used according to the invention ensure excellent water vapor diffusion, so that the shell joint also meets the requirements in this respect.
  • the material is waterproof.
  • the construction of the masonry according to the invention causes only relatively low construction costs in terms of work and materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
EP19830106752 1982-08-14 1983-07-09 Mur à double paroi Expired EP0103097B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823230311 DE3230311A1 (de) 1982-08-14 1982-08-14 Zweischaliges mauerwerk
DE3230311 1982-08-14

Publications (3)

Publication Number Publication Date
EP0103097A2 true EP0103097A2 (fr) 1984-03-21
EP0103097A3 EP0103097A3 (en) 1985-01-16
EP0103097B1 EP0103097B1 (fr) 1987-07-01

Family

ID=6170899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830106752 Expired EP0103097B1 (fr) 1982-08-14 1983-07-09 Mur à double paroi

Country Status (2)

Country Link
EP (1) EP0103097B1 (fr)
DE (1) DE3230311A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5791107A (en) * 1992-04-03 1998-08-11 Siemens Aktiengesellschaft Building with a sealing element

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211293A1 (de) * 1992-04-03 1993-10-07 Siemens Ag Gebäude
US6689451B1 (en) 1999-11-19 2004-02-10 James Hardie Research Pty Limited Pre-finished and durable building material
BR0208622A (pt) 2001-04-03 2005-02-01 James Hardie Res Pty Ltd Artigo, processos produtivos e instalação de artigo de fibrocimento reforçado
EP1534511B1 (fr) 2002-07-16 2012-05-30 James Hardie Technology Limited Conditionnement d'articles prefinis en fibrociment
US8281535B2 (en) 2002-07-16 2012-10-09 James Hardie Technology Limited Packaging prefinished fiber cement articles
MXPA05003691A (es) 2002-10-07 2005-11-17 James Hardie Int Finance Bv Material mixto de fibrocemento de densidad media durable.
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
WO2007115379A1 (fr) 2006-04-12 2007-10-18 James Hardie International Finance B.V. Element de construction renforce a surface etanche

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426494A (en) * 1967-08-15 1969-02-11 Alfred A Hala Wall-tie assembly for use in the construction of waterproof walls
DE2806988C2 (de) * 1978-02-18 1983-03-17 Recozell-Leichtbauelemente GmbH, 4724 Wadersloh Luftschichtdämmlage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5791107A (en) * 1992-04-03 1998-08-11 Siemens Aktiengesellschaft Building with a sealing element

Also Published As

Publication number Publication date
DE3230311A1 (de) 1984-02-16
EP0103097B1 (fr) 1987-07-01
DE3230311C2 (fr) 1988-01-21
EP0103097A3 (en) 1985-01-16

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