EP1960613B1 - Verfahren zur sanierung eines flachen und/oder flach geneigten daches eines gebäudes - Google Patents

Verfahren zur sanierung eines flachen und/oder flach geneigten daches eines gebäudes Download PDF

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Publication number
EP1960613B1
EP1960613B1 EP06829669.8A EP06829669A EP1960613B1 EP 1960613 B1 EP1960613 B1 EP 1960613B1 EP 06829669 A EP06829669 A EP 06829669A EP 1960613 B1 EP1960613 B1 EP 1960613B1
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EP
European Patent Office
Prior art keywords
thermal insulation
roof
storage layer
insulation
hygroscopic
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.)
Active
Application number
EP06829669.8A
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German (de)
English (en)
French (fr)
Other versions
EP1960613A1 (de
Inventor
Andreas Gebing
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.)
Rockwool AS
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Rockwool International AS
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Publication date
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Priority to PL06829669T priority Critical patent/PL1960613T3/pl
Publication of EP1960613A1 publication Critical patent/EP1960613A1/de
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Publication of EP1960613B1 publication Critical patent/EP1960613B1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1681—Insulating of pre-existing roofs with or without ventilating arrangements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
    • E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition

Definitions

  • the invention relates to a method for the rehabilitation of a flat and / or flat inclined roof of a building, wherein the roof has a support shell and disposed thereon thermal insulation, in particular of mineral fiber insulation elements and wherein a roof seal is disposed on the thermal insulation.
  • the invention further relates to a roof structure of a flat and / or flat inclined roof of a building, consisting of a support shell and arranged on the support shell thermal insulation, in particular of mineral fiber insulation elements and arranged on the thermal insulation roof seal.
  • roofs have insulating materials that are subject to aging and are damaged or destroyed in particular by the absorption of moisture, but also by mechanical stress when walking on the roof surfaces.
  • the absorption of moisture is caused by leaky roof seals, with regular walking on the roof surfaces leads to heavy stress on the roof seal, which occur especially in joint areas of adjacent roof waterproofing membranes and the transition of the roof surface to roof structures.
  • thermal expansion coefficients of the materials used which lead to tensile stress in the roof seal and thus to mechanical stresses in the roof waterproofing.
  • the roof has a tray, disposed thereon thermal insulation and an existing roof seal.
  • thermal insulation preferably on the partially open roof waterproofing a second thermal insulation is applied nationwide and on the second thermal insulation a roof seal nationwide and secured with screws. Also, this approach solves the problem with the elimination of moisture contained in the existing thermal barrier coating insufficient.
  • Another object of the invention is a roof structure, as known, inter alia EP 0 894 913 A to develop such that the rehabilitation of a roof of a building without complete demolition of heat insulation in a simple and economical way is feasible and in particular covering work during renovation can be avoided.
  • the solution of the problem provides in a method according to the invention in that the roof seal is at least partially opened and / or at least partially removed, that on the thermal insulation, preferably on the partially opened roof seal a second thermal insulation is applied throughout the area that on the second thermal insulation a roof seal is applied across the board and that between the thermal insulation and the second thermal insulation, a hygroscopic storage layer is arranged.
  • the insulation consists of at least two layers, wherein between the layers a hygroscopic storage layer is arranged, wherein the hygroscopic storage layer is disposed on a partially open, further roof seal.
  • a hygroscopic storage layer is arranged between the thermal insulation and the second thermal insulation. This hygroscopic storage layer draws moisture from the first thermal insulation and prevents moisture from diffusing into the applied second thermal insulation.
  • the hygroscopic storage layer is formed of mat and / or plate-shaped webs, so that the storage layer can be applied in a simple manner during the renovation with rapid renovation progress.
  • larger areas of the roof can be processed without the risk of further damage to the heat insulation.
  • large-scale covers of the work areas can be omitted.
  • the hygroscopic storage layer is formed from at least one thin insulating layer with a storage medium for moisture, in particular a granulate.
  • the granules absorb the moisture, while the thin insulating layer further contributes to improving the insulation performance.
  • the hygroscopic storage layer is formed so as to block vapor, so that a transmission of moisture into the second thermal insulation is substantially prevented. Therefore, the vapor barrier region, for example in the form of a vapor barrier formed film between the storage layer and the second thermal insulation is arranged.
  • the hygroscopic storage layer is integrated into the second thermal insulation.
  • the different materials also allow a given installation orientation of appropriately trained thermal insulation elements, so that installation errors are avoided or at least quickly recognizable.
  • the thermal insulation and / or the second thermal insulation from mineral fiber insulation elements and / or Hartschaumdämmettin, in particular of expanded or extruded polystyrene, polyurethane, phenolic resin foam or Polyisocyanuratschaum is formed.
  • the roof structure with regard to the arrangement of different or identical materials of thermal insulation and the second thermal insulation.
  • the hygroscopic storage layer is formed of mat and / or plate-shaped webs.
  • Such tracks are usually manageable by a person, so that the required for the renovation of a roof surface number of craftsmen is limited.
  • the use of machines can also be kept very limited.
  • the hygroscopic storage layer is formed from at least one gel web.
  • the hygroscopic storage layer is preferably formed from at least one thin insulating layer with a storage medium for moisture, in particular granules.
  • the hygroscopic storage layer is formed vapor-blocking.
  • the hygroscopic storage layer is connected to a layer of thermal insulation, so that the installation of the individual, the heat insulation forming thermal insulation elements is synonymous with the installation of the storage layer.
  • the storage layer is therefore covered immediately during installation by the thermal insulation, so that their storage capacity is not already reduced by an open installation by precipitation and / or high humidity and thus the remediation process, namely the discharge of moisture from the first, original insulation insufficient Available.
  • the hygroscopic storage layer is disposed on a partially open roof seal, wherein the storage layer is preferably connected to the roof seal, in particular glued.
  • the partially opened roof seal allows moisture to diffuse from the first, original thermal insulation through the openings in the roof seal, while the remaining unopened areas of the roof seal provide some protection against re-entry of moisture into the first thermal insulation.
  • FIG. 3 is a roof structure of a flat roof shown.
  • the flat roof consists of a support shell 1 in the form of a concrete ceiling.
  • a vapor barrier 2 is arranged, which consists for example of a polyethylene film and covers the surface 3 of the tray 1 over its entire surface.
  • the vapor barrier 2 is usually made of individual film webs, which are arranged side by side, wherein adjacent webs of the vapor barrier 2 are arranged overlapping each other.
  • a thermal insulation 4 is arranged, which consists of individual mineral fiber insulation elements, said thermal insulation 4 has moisture retention 5, so that the thermal insulation performance of the thermal insulation 4 is thereby significantly impaired.
  • a roof seal 6 which consists for example of bituminous membranes, which are arranged directly on the insulation 4, optionally connected to the thermal insulation 4, wherein individual bituminous sheets are arranged side by side and extending in the longitudinal direction of overlapping areas.
  • the roof seal 6 loses its sealing function in the course of the years of use by mechanical loads, so that moisture can penetrate into the heat insulation 4 and accumulate in the moisture deposits 5, in particular via the overlapping areas of adjacent webs of the roof seal 6.
  • FIG. 1 shows a first embodiment of a roof structure after a renovation of the roof structure according to FIG. 3 ,
  • the roof seal 6 is opened in partial areas, so that openings 7 are provided in these partial areas, over which the moisture arranged in the moisture deposits 5 can diffuse through the roof seal 6.
  • a second thermal insulation 8 is arranged, which has a greater material thickness compared to the first thermal insulation 4 and absorbs the ascending from the first thermal insulation 4 on the roof seal 6 moisture according to arrows 9. Due to the greater thickness of the thermal insulation 8, the relative moisture content in the insulation 8 is kept relatively low compared to the relative moisture content in the thinner thermal insulation 4, so that the thermal insulation 4 recovers after complete removal of moisture their nearly complete thermal insulation performance, while in the Moisture deposits 5 of the second thermal insulation 8 collecting moisture, the thermal insulation performance of the second insulation 8 comparatively low limits.
  • the second thermal insulation 8 which also consists of individual mineral fiber insulation elements, has on its upper side a second roof seal 10, which consists of juxtaposed bituminous membranes corresponding to the opened roof seal 6.
  • the refurbishment of in FIG. 3 shown roof construction according to FIG. 1 in that, in a first step, the roof seal 6 is opened in partial areas such that openings 7 form, through which moisture contained in the moisture inlays 5 can diffuse. Before the opened roof seal 6 is covered with the second thermal insulation 8, the first thermal insulation 4, a substantial proportion of the moisture contained can be withdrawn. Ideally, in this case, a moisture content in the first thermal insulation 4 is achieved, which corresponds to the humidity in the ambient air. Subsequently, the second thermal insulation 8 is applied to the open roof seal 6 in the form of mineral fiber insulation boards and / or mineral fiber insulation webs that completely cover the roof seal 6.
  • the second thermal insulation 8 usually consists of new insulating elements, which have only a low moisture content
  • the second thermal insulation 8 of the first thermal insulation 4 removes further moisture, which collects in new moisture deposits 5 in the insulation 8, so that an overall improved Thermal insulation performance with a uniform moisture content in the thermal insulation layer, consisting of the two thermal insulation 4 and 8 sets.
  • FIG. 2 shows a second embodiment of a roof structure, which is improved in the distribution of moisture in the roof structure.
  • FIG. 2 the roof construction is correct FIG. 2 according to the roof structure FIG. 1 match, so that on the support shell 1, the vapor barrier 2 and on the vapor barrier 2, the original thermal insulation 4 and arranged thereon roof seal 6 is arranged. Furthermore, the roof structure according to FIG. 2 above the roof seal 6, a second thermal insulation 8 and the second roof seal 10 arranged thereon.
  • a hygroscopic storage layer 11 is arranged, which receives and stores the moisture diffusing out of the moisture inlays 5 of the thermal insulation 4 via the openings 7 in the direction of the arrows 9 and thus in the direction of the thermal insulation 8.
  • This embodiment thus has the advantage that the moisture is not stored in the second thermal insulation 8, so that both thermal insulation 4 and 8 achieve the highest possible thermal insulation performance, which is not adversely affected by moisture retention 5.
  • the hygroscopic storage layer 11 consists of a non-illustrated thin insulating layer with a storage medium for moisture, which as Granules is formed. Furthermore, the storage layer 11 is connected to the thermal insulation 8 via a vapor barrier layer, so that the moisture absorbed by the storage layer 11 can not be dissipated into the thermal insulation 8 even at high saturation of the storage layer 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Building Environments (AREA)
EP06829669.8A 2005-12-16 2006-12-15 Verfahren zur sanierung eines flachen und/oder flach geneigten daches eines gebäudes Active EP1960613B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06829669T PL1960613T3 (pl) 2005-12-16 2006-12-15 Proces renowacji dachu płaskiego lub dachu o małym nachyleniu w budynku

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005060260A DE102005060260B4 (de) 2005-12-16 2005-12-16 Verfahren zur Sanierung eines flachen und/oder flach geneigten Daches eines Gebäudes
PCT/EP2006/012139 WO2007073896A1 (de) 2005-12-16 2006-12-15 Verfahren zur sanierung eines flachen und/oder flach geneigten daches eines gebäudes

Publications (2)

Publication Number Publication Date
EP1960613A1 EP1960613A1 (de) 2008-08-27
EP1960613B1 true EP1960613B1 (de) 2018-02-28

Family

ID=37814494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06829669.8A Active EP1960613B1 (de) 2005-12-16 2006-12-15 Verfahren zur sanierung eines flachen und/oder flach geneigten daches eines gebäudes

Country Status (8)

Country Link
EP (1) EP1960613B1 (hu)
DE (1) DE102005060260B4 (hu)
DK (1) DK1960613T3 (hu)
EA (1) EA012832B1 (hu)
HU (1) HUE038101T2 (hu)
PL (1) PL1960613T3 (hu)
UA (1) UA87636C2 (hu)
WO (1) WO2007073896A1 (hu)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112459521B (zh) * 2020-11-16 2022-02-15 中国矿业大学 一种既有建筑增设楼顶停车场或健身场的结构及实施方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052343A1 (en) * 1999-05-10 2000-11-15 Ecotherm Beheer B.V. Method for renovation of insulated roofs and renovation plate for renovation of insulated roofs.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884009A (en) * 1973-10-26 1975-05-20 Grace W R & Co Method of ventilating a roof system
NO153893C (no) * 1983-02-14 1986-06-11 Rasmussen Oeystein Fremgangsmaate til fremstilling av selvtettende og/eller ikke dryppende takkonstruksjon.
DE19732769A1 (de) * 1997-07-30 1999-02-18 Gerthold Proeckl Verfahren zur Sanierung einer Asbestzement-Dacheindeckung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052343A1 (en) * 1999-05-10 2000-11-15 Ecotherm Beheer B.V. Method for renovation of insulated roofs and renovation plate for renovation of insulated roofs.

Also Published As

Publication number Publication date
UA87636C2 (uk) 2009-07-27
DK1960613T3 (da) 2018-06-06
EP1960613A1 (de) 2008-08-27
PL1960613T3 (pl) 2018-08-31
EA200801519A1 (ru) 2008-10-30
DE102005060260B4 (de) 2010-04-08
DE102005060260A1 (de) 2007-06-28
EA012832B1 (ru) 2009-12-30
WO2007073896A1 (de) 2007-07-05
HUE038101T2 (hu) 2018-10-29

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