DK1960613T3 - METHOD FOR RENOVATING A FLAT AND / OR FLAT Sloping ROOF ON A BUILDING - Google Patents
METHOD FOR RENOVATING A FLAT AND / OR FLAT Sloping ROOF ON A BUILDING Download PDFInfo
- Publication number
- DK1960613T3 DK1960613T3 DK06829669.8T DK06829669T DK1960613T3 DK 1960613 T3 DK1960613 T3 DK 1960613T3 DK 06829669 T DK06829669 T DK 06829669T DK 1960613 T3 DK1960613 T3 DK 1960613T3
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- Denmark
- Prior art keywords
- roof
- thermal insulation
- heat insulation
- storage zone
- hygroscopic
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 135
- 239000002557 mineral fiber Substances 0.000 claims description 15
- 239000006260 foam Substances 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 11
- 239000008187 granular material Substances 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 229920000582 polyisocyanurate Polymers 0.000 claims description 3
- 239000011495 polyisocyanurate Substances 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 238000011012 sanitization Methods 0.000 claims 1
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract 4
- 239000000835 fiber Substances 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 238000009418 renovation Methods 0.000 description 17
- 230000035508 accumulation Effects 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000035882 stress Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
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- 238000013459 approach Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
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- 229920000573 polyethylene Polymers 0.000 description 1
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- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Building Environments (AREA)
Abstract
Description
METHOD FOR RENEWING A FLAT AND/OR SHALLOW-SLOPING ROOF OF A BUILDINGMETHOD FOR RENEWING A FLAT AND / OR SHALLOW-SLOPING ROOF OF A BUILDING
DescriptionDescription
The invention relates to a method for the renovation of a flat and/or a flat sloping roof of a building, wherein the roof comprises a supporting shell and a thermal insulation arranged thereon and especially made of mineral fibre insulation elements, and wherein a roof seal is arranged on the thermal insulation. The invention furthermore relates to a roof structure of a flat and/or flat sloping roof of a building, consisting of a supporting shell and a thermal insulation arranged on the supporting shell and especially made of mineral fibre insulation elements, and a roof seal arranged on the thermal insulation. A large number of flat and/or flat sloping roofs are at an age where renovation is required. These roofs have insulating materials that are subject to an ageing process and that are damaged or destroyed especially by absorbing moisture but also as a result of mechanical stresses when roof surfaces are walked on. The absorption of moisture is caused by untight roof seals, wherein regular walking on the roof surfaces leads to great stressing of the roof seal, which occurs especially in impact areas of adjacent roof sealing sheets and in the transition of the roof surface to the roof structures. In addition, different thermal expansion coefficients of the materials used lead to tensile stresses in the roof seal and thus to mechanical stresses in the roof seal.The invention relates to a method for the renovation of a flat and / or a flat demolition roof of a building, the roof comprising a supporting shell and a thermal insulation arranged thereon and especially made of mineral fiber insulation elements, and a roof seal. is arranged on the thermal insulation. The invention furthermore relates to a roof structure of a flat and / or flat sloping roof of a building, consisting of a supporting shell and a thermal insulation arranged on the supporting shell and especially made of mineral fiber insulation elements, and a roof seal arranged on the thermal insulation. A large number of flat and / or flat sloping roofs are at an age where renovation is required. These roofs have insulating materials that are subject to an aging process and are damaged or destroyed especially by absorbing moisture but also as a result of mechanical stresses when roof surfaces are walked on. The absorption of moisture is caused by untight roof seals, regular walking on the roof surfaces leads to great stress of the roof seal, which occurs especially in impact areas of adjacent roof sealing sheets and in the transition from the roof surface to the roof structures . In addition, different thermal expansion coefficients of the materials used lead to tensile stresses in the roof seal and thus to mechanical stresses in the roof seal.
Moisture, especially rainwater, enters the thermal insulation and significantly reduces the heat-insulating properties of the thermal insulation so that the actual function of the thermal insulation is greatly limited. A drying process is generally not possible without removal of significant parts of the roof, especially of the roof seal. Apart from that, such a removal is labour-intensive and thus cost-intensive. Besides, as a result of the removal, large areas of the thermal insulation will be exposed so that additional precipitation can enter freely. Carrying out such renovation work without running the risk of further damage is therefore only possible during periods of fine weather. Alternatively, a large-area covering of the work area would be required in order to ensure the required dry working conditions and to rule out the aforementioned risks.Moisture, especially rainwater, enters the thermal insulation and significantly reduces the thermal insulation properties of the thermal insulation so that the actual function of the thermal insulation is greatly limited. A drying process is generally not possible without removal of significant parts of the roof, especially of the roof seal. Apart from that, such a removal is labor-intensive and thus cost-intensive. Besides, as a result of the removal, large areas of the thermal insulation will be exposed so that additional precipitation can enter freely. Carrying out such renovation work without running the risk of further damage is therefore only possible during periods of fine weather. Alternatively, a large-area coverage of the work area would be required in order to ensure the required dry working conditions and to rule out the aforementioned risks.
In addition, the thermal insulations of older roofs no longer meet modern requirements regarding insulation layer thickness and/or insulating performance so that it is generally necessary to remove the entire thermal insulation and to construct a new thermal insulation that meets the requirements. Naturally, this means a fresh roof design, which is very labour- and cost-intensive. In addition to the significant costs of the new roof structure, the costs for disposing of the removed building materials must also be taken into consideration.In addition, the thermal insulations of older roofs no longer meet modern requirements regarding insulation layer thickness and / or insulating performance so that it is generally necessary to remove the entire thermal insulation and to construct a new thermal insulation that meets the requirements. Naturally, this means a fresh roof design, which is very labor- and cost-intensive. In addition to the significant costs of the new roof structure, the costs of disposing of the removed building materials must also be taken into consideration.
It is furthermore known from the prior art to dispense with removing the old roof and to place a new roof structure on top of the old roof structure, since at least the required insulation layer thicknesses can then be achieved easily and cost-effectively. The problems with moisture in the thermal insulation are however not eliminated thereby so that this approach does not lead to a satisfactory result.It is furthermore known from the prior art to dispense with removing the old roof and to place a new roof structure on top of the old roof structure, since at least the required insulation layer thicknesses can then be achieved easily and cost-effectively. However, the problems with moisture in the thermal insulation are not eliminated so that this approach does not lead to a satisfactory result.
From EP-A-1052343, for example, a method for renovating an insulated roof of a building is known. In this method, the roof has a supporting shell, a thermal insulation arranged thereupon, and an existing roof seal. A second thermal insulation is applied in a full-covering manner onto the thermal insulation, preferably onto the partially opened roof seal, and a roof seal is applied in a full-covering manner onto the second thermal insulation and fastened with screws. This approach also only insufficiently solves the problem of removing the moisture contained in the existing thermal insulation layer.From EP-A-1052343, for example, a method of renovating an insulated roof of a building is known. In this method, the roof has a supporting shell, a thermal insulation arranged thereon, and an existing roof seal. A second thermal insulation is applied in a full-covering less to the thermal insulation, preferably to the partially opened roof seal, and a roof seal is applied in a full-covering less to the second thermal insulation and fastened with screws. This approach also insufficiently solves the problem of removing the moisture contained in the existing thermal insulation layer.
Proceeding from this prior art, it is therefore the task of the invention to provide a method for the renovation of a flat and/or flat sloping roof, with which method a drastic improvement of the heat-insulating performance and elimination of the moisture contained in the thermal insulation layer is ensured at low cost while avoiding the disadvantages of the prior art.Proceeding from this prior art, it is therefore the object of the invention to provide a method for the renovation of a flat and / or flat sloping roof, with which method a drastic improvement of the heat-insulating performance and elimination of the moisture contained in the thermal insulation layer is ensured at low cost while avoiding the disadvantages of the prior art.
Another task of the invention is to further develop a roof structure as known from EP 0 894 913 A, for example, such that the renovation of a roof of a building can be carried out easily and economically without complete removal of the thermal insulation and that in particular covering tasks can be avoided during the renovation.Another task of the invention is to further develop a roof structure known from EP 0 894 913 A, for example, such that the renovation of a roof of a building can be carried out easily and economically without complete removal of the thermal insulation and that in particular covering tasks can be avoided during the renovation.
The solution of the task in a method according to the invention provides that the roof seal be at least partially opened and/or at least partially removed, that a second thermal insulation be applied in a full-covering manner onto the thermal insulation, preferably onto the partially opened roof seal, that a roof seal be applied in a full-covering manner onto the second thermal insulation, and that a hygroscopic storage layer be arranged between the thermal insulation and the second thermal insulation.The solution of the task in a method according to the invention provides that the roof seal is at least partially opened and / or at least partially removed, that a second thermal insulation is applied in a full-covering less to the thermal insulation, preferably onto the partially opened roof seal, that a roof seal is applied in a full-coverage manner to the second thermal insulation, and that a hygroscopic storage layer is arranged between the thermal insulation and the second thermal insulation.
In order to achieve the task, the roof structure according to the invention provides for the thermal insulation to consist of at least two layers, wherein a hygroscopic storage layer is arranged between the layers, wherein the hygroscopic storage layer is arranged on a partially opened, additional roof seal.In order to achieve the task, the roof structure according to the invention provides for the thermal insulation to consist of at least two layers, a hygroscopic storage layer is arranged between the layers, while the hygroscopic storage layer is arranged on a partially opened, additional roof seal.
Additional features of the invention result from the dependent claims and the following description of preferred and advantageous developments of the method according to the invention and of the roof structure according to the invention.Additional features of the invention result from the dependent claims and the following description of preferred and advantageous developments of the method according to the invention and of the roof structure according to the invention.
In order to remove moisture from the original thermal insulation, the invention provides for a hygroscopic storage layer arranged between the thermal insulation and the second thermal insulation. This hygroscopic storage layer extracts the moisture from the first thermal insulation and prevents the moisture from diffusing into the applied second thermal insulation.In order to remove moisture from the original thermal insulation, the invention provides for a hygroscopic storage layer arranged between the thermal insulation and the second thermal insulation. This hygroscopic storage layer extracts the moisture from the first thermal insulation and prevents the moisture from diffusing into the applied second thermal insulation.
The hygroscopic storage layer is preferably formed from mat-shaped and/or panel-shaped sheets so that the storage layer can be easily applied during the renovation with fast progress in the renovation. In this way, larger areas of the roof can be processed without the risk of further moisture damage to the thermal insulation. Large-area coverings of the work area can be dispensed with.The hygroscopic storage layer is preferably formed from mat-shaped and / or panel-shaped sheets so that the storage layer can be easily applied during the renovation with fast progress in the renovation. In this way, larger areas of the roof can be processed without the risk of further moisture damage to the thermal insulation. Large-area coverings of the work area can be dispensed with.
It has furthermore proven to be advantageous to form the hygroscopic storage layer from at least one gel strip.It has furthermore proven to be advantageous to form the hygroscopic storage layer from at least one gel strip.
Alternatively or additionally, it can be provided according to another feature of the invention that the hygroscopic storage layer be formed from at least one thin insulation layer comprising a storage medium for moisture, especially a granulate. In this case, the granulate absorbs the moisture, while the thin insulation layer continues to contribute to improving the insulating capacity.Alternatively or additionally, it can be provided according to another feature of the invention that the hygroscopic storage layer is formed from at least one thin insulation layer comprising a storage medium for moisture, especially a granulate. In this case, the granulate absorbs the moisture, while the thin insulation layer continues to improve the insulating capacity.
Another feature of the invention provides that the hygroscopic storage layer be designed so as to act as a barrier to vapour so that a transfer of the moisture into the second thermal insulation is essentially prevented. The area blocking vapour is therefore arranged between the storage layer and the second thermal insulation in the form of a sheet designed as a vapour barrier, for example.Another feature of the invention provides that the hygroscopic storage layer is designed to act as a barrier to vapor so that a transfer of moisture into the second thermal insulation is substantially prevented. The area blocking vapor is therefore arranged between the storage layer and the second thermal insulation in the form of a sheet designed as a vapor barrier, for example.
In order to be able to carry out the renovation in the shortest possible time, another feature of the invention provides that the hygroscopic storage layer be integrated into the second thermal insulation. As a result of this design, the storage layer and the second thermal insulation are applied simultaneously onto the roof area to be renovated. The different materials moreover allow for a predetermined installation orientation of the correspondingly designed thermal insulation elements so that installation errors are avoided or can at least be recognised quickly.In order to be able to carry out the renovation in the shortest possible time, another feature of the invention provides that the hygroscopic storage layer be integrated into the second thermal insulation. As a result of this design, the storage layer and the second thermal insulation are applied simultaneously to the roof area to be renovated. The different materials moreover allow for a predetermined installation orientation of the correspondingly designed thermal insulation elements so that installation errors are avoided or can at least be recognized quickly.
Another feature of the invention provides that the thermal insulation and/or the second thermal insulation be formed from mineral fibre insulation elements and/or rigid-foam insulation elements, especially from expanded or extruded polystyrene, polyurethane, phenolic resin foam, or polyisocyanurate foam. Four different combinations of the roof structure thus result with respect to the arrangement of the different or identical materials of the thermal insulation and the second thermal insulation. It is possible to form both the thermal insulation and the second thermal insulation from insulation elements of the same material, such as rigid foam or mineral fibres, and to provide combinations of the insulation elements from the two materials so that the insulation elements of the thermal insulation are formed from rigid foam or mineral fibres and the insulation elements of the second thermal insulation are formed from mineral fibres or rigid foam.Another feature of the invention provides that the thermal insulation and / or the second thermal insulation are formed from mineral fiber insulation elements and / or rigid foam insulation elements, especially from expanded or extruded polystyrene, polyurethane, phenolic resin foam, or polyisocyanurate foam. Four different combinations of the roof structure thus result with respect to the arrangement of the different or identical materials of the thermal insulation and the second thermal insulation. It is possible to form both the thermal insulation and the second thermal insulation from insulation elements of the same material, such as rigid foam or mineral fibers, and to provide combinations of the insulation elements from the two materials so that the insulation elements of the thermal insulation are formed from rigid foam or mineral fibers and the insulation elements of the second thermal insulation are formed from mineral fibers or rigid foam.
In the design of the roof structure according to the invention, it has been proven to be advantageous in the course of a fast performability of the work that the hygroscopic storage layer be formed from mat-shaped and/or panel-shaped sheets. Such lengths of sheeting can generally be handled by one person so that the number of building workers required for the renovation of a roof surface is limited. Moreover, heavy weights do not need to be handled so that health burdens on the building workers working on the renovation are also reduced to a low level. The use of machines can also be kept at a very limited level.In the design of the roof structure according to the invention, it has been proven to be advantageous in the course of a fast performability of the work that the hygroscopic storage layer is formed from mat-shaped and / or panel-shaped sheets. Such lengths of sheeting can generally be handled by one person so that the number of building workers required for the renovation of a roof surface is limited. Moreover, heavy weights do not need to be handled so that health burdens on the building workers working on the renovation are also reduced to a low level. The use of machines can also be kept at a very limited level.
Another feature of the roof structure according to the invention provides that the hygroscopic storage layer be formed from at least one gel strip.Another feature of the roof structure according to the invention provides that the hygroscopic storage layer is formed from at least one gel strip.
The hygroscopic storage layer is preferably formed from at least one thin insulation layer comprising a storage medium for moisture, especially a granulate.The hygroscopic storage layer is preferably formed from at least one thin insulation layer comprising a storage medium for moisture, especially a granulate.
In order to prevent the diffusion of moisture through the thermal insulation, it is provided that the hygroscopic storage layer be designed so as to block vapour.In order to prevent the diffusion of moisture through the thermal insulation, it is provided that the hygroscopic storage layer be designed to block vapor.
The hygroscopic storage layer is preferably connected to a layer of the thermal insulation so that the installation of the individual thermal insulation elements forming the thermal insulation is equivalent to the installation of the storage layer. The storage layer is therefore directly covered by the thermal insulation during installation so that its storage capacity is not already reduced during an open installation by precipitation and/or high humidity and thus is only insufficiently available to the renovation process, namely the removal of moisture from the first, original thermal insulation.The hygroscopic storage layer is preferably connected to a layer of the thermal insulation so that the installation of the individual thermal insulation elements forming the thermal insulation is equivalent to the installation of the storage layer. The storage layer is therefore directly covered by the thermal insulation during installation so that its storage capacity is not already reduced during an open installation by precipitation and / or high humidity and thus is only insufficiently available to the renovation process, namely the removal of moisture from the first, original thermal insulation.
It is provided according to the invention that the hygroscopic storage layer be arranged on a partially opened roof seal, wherein the storage layer is preferably connected, in particular glued, to the roof seal. The partially opened roof seal allows for a diffusion of the moisture from the first, original thermal insulation through the openings in the roof seal, while the remaining, non-opened areas of the roof seal offer a certain degree of protection against moisture newly penetrating into the first thermal insulation.It is provided according to the invention that the hygroscopic storage layer is arranged on a partially opened roof seal, whereas the storage layer is preferably connected, in particular glued, to the roof seal. The partially opened roof seal allows for diffusion of moisture from the first, original thermal insulation through the openings in the roof seal, while the remaining, non-opened areas of the roof seal offer a certain degree of protection against moisture newly penetrating into the the first thermal insulation.
Additional features and advantages of the invention are described below in reference to the drawing, in which preferred embodiments of the roof structure according to the invention are shown. In the drawing are shown:Additional features and advantages of the invention are described below with reference to the drawing, in which preferred embodiments of the roof structure according to the invention are shown. In the drawing are shown:
Figure 1 a first embodiment of a roof structure in a cross-section;Figure 1 a first embodiment of a roof structure in a cross-section;
Figure 2 a second embodiment of a roof structure in a cross-section; andFigure 2 a second embodiment of a roof structure in a cross-section; spirit
Figure 3 a roof structure according to the prior art in need of renovation in a cross-section.Figure 3 a roof structure according to the prior art in need of renovation in a cross-section.
Figure 3 shows a roof structure of a flat roof. The flat roof consists of a supporting shell 1 in the form of a concrete ceiling. On the supporting shell 1, a vapour barrier 2 is arranged, which consists, for example, of a polythene sheet and covers the surface 3 of the supporting shell 1 completely. The vapour barrier 2 generally consists of individual lengths of sheeting, which are arranged next to each other, wherein adjacent sheets of the vapour barrier 2 are arranged so as to overlap each other.Figure 3 shows a roof structure of a flat roof. The flat roof consists of a supporting shell 1 in the form of a concrete ceiling. On the supporting shell 1, a vapor barrier 2 is arranged, which consists, for example, of a polythene sheet and completely covers the surface 3 of the supporting shell 1. The vapor barrier 2 generally consists of individual lengths of sheeting, which are arranged next to each other, adjacent sheets of the vapor barrier 2 are arranged so as to overlap each other.
On the vapour barrier 2 is arranged a thermal insulation 4, which consists of individual mineral fibre insulation elements, wherein this thermal insulation 4 exhibits moisture accumulations 5 so that the heat-insulating performance of the thermal insulation 4 is significantly impaired thereby.On the vapor barrier 2 is arranged a thermal insulation 4, which consists of individual mineral fiber insulation elements, while this thermal insulation 4 exhibits moisture accumulations 5 so that the heat-insulating performance of the thermal insulation 4 is significantly impaired thereby.
Above the thermal insulation 4, a roof seal 6 is arranged last, which consists of, for example, lengths of bitumen sheeting, which are arranged directly on top of the thermal insulation 4, possibly connected to the thermal insulation 4, wherein the individual bitumen sheets are arranged next to each other and connected to each other in overlapping regions extending in the longitudinal direction.Above the thermal insulation 4, a roof seal 6 is arranged last, which consists of, for example, lengths of bitumen sheeting, which are arranged directly on top of the thermal insulation 4, possibly connected to the thermal insulation 4, the individual bitumen sheets are arranged next to each other and connected to each other in overlapping regions extending in the longitudinal direction.
In the course of years of use, the roof seal 6 loses its sealing function as a result of mechanical stresses so that moisture can enter into the thermal insulation 4 especially through the overlapping regions of adjacent sheets of the roof seal 6 and can accumulate in the moisture accumulations 5.In the course of years of use, the roof seal 6 loses its sealing function as a result of mechanical stresses so that moisture can enter the thermal insulation 4 especially through the overlapping regions of adjacent sheets of the roof seal 6 and can accumulate in the moisture accumulations 5.
Figure 1 shows a first embodiment of a roof structure after renovation of the roof structure according to Figure 3.Figure 1 shows a first embodiment of a roof structure after renovation of the roof structure according to Figure 3.
The roof seal 6 is opened in sub-areas so that in these sub-areas are provided openings 7, through which the moisture accumulated in the moisture accumulations 5 can diffuse through the roof seal 6. On the roof seal 6 is arranged a second thermal insulation 8, which has a greater material thickness than the first thermal insulation 4 and which absorbs the moisture rising from the first thermal insulation 4 above the roof seal 6 as indicated by arrows 9. The greater material thickness of the thermal insulation 8 keeps the relative moisture content in the thermal insulation 8 relatively low in comparison to the relative moisture content in the thinner thermal insulation 4 so that the thermal insulation 4 regains almost its full heat-insulating performance after the moisture has been completely extracted, while the moisture accumulating in the moisture accumulations 5 of the second thermal insulation 8 limits the heat-insulating performance of the second thermal insulation 8 to a comparatively low extent.The roof seal 6 is opened in sub-areas so that in these sub-areas are provided openings 7, through which the moisture accumulated in the moisture accumulations 5 can diffuse through the roof seal 6. On the roof seal 6 is arranged a second thermal insulation 8, which has a greater material thickness than the first thermal insulation 4 and which absorbs the moisture rising from the first thermal insulation 4 above the roof seal 6 as indicated by arrows 9. The greater material thickness of the thermal insulation 8 keeps the relative moisture content in the thermal insulation 8 relatively low compared to the relative moisture content in the thinner thermal insulation 4 so that the thermal insulation 4 regains almost its full heat-insulating performance after the moisture has been completely extracted, while the moisture accumulating in the moisture accumulations 5 of the second thermal insulation 8 limits the heat-insulating performance of the second thermal insulation 8 to a comparat ively low extent.
The second thermal insulation 8, which also consists of individual mineral fibre insulation elements, comprises on its upper side a second roof seal 10, which consists of lengths of bitumen sheeting arranged next to each other in a manner corresponding to the opened roof seal 6.The second thermal insulation 8, which also consists of individual mineral fiber insulation elements, comprises on its upper side a second roof seal 10, which consists of lengths of bitumen sheeting arranged next to each other in a manner less similar to the opened roof seal 6.
The renovation of the roof structure shown in Figure 3 takes place according to Figure 1 by the roof seal 6 being opened in a first step in sub-areas so that openings 7 are formed, through which the moisture contained in the moisture accumulations 5 can diffuse. Before the opened roof seal 6 is covered by the second thermal insulation 8, a significant portion of the moisture contained in the first thermal insulation 4 can be extracted therefrom. Ideally, a moisture content that corresponds to the moisture in the ambient air is achieved in this case in the first thermal insulation 4. The second thermal insulation 8 is subsequently applied onto the opened roof seal 6 in the form of mineral fibre insulation boards and/or mineral fibre insulation sheeting, which completely cover the roof seal 6.The renovation of the roof structure shown in Figure 3 takes place according to Figure 1 by the roof seal 6 being opened in a first step in sub-areas so that openings 7 are formed through which the moisture contained in the moisture accumulations 5 can diffuse . Before the opened roof seal 6 is covered by the second thermal insulation 8, a significant portion of the moisture contained in the first thermal insulation 4 can be extracted therefrom. Ideally, a moisture content corresponding to the moisture in the ambient air is achieved in this case in the first thermal insulation 4. The second thermal insulation 8 is subsequently applied onto the opened roof seal 6 in the form of mineral fiber insulation boards and / or mineral fiber insulation sheeting, which completely covers the roof seal 6.
Since the second thermal insulation 8 generally consists of new insulating material elements, which have only a low moisture content, the second thermal insulation 8 extracts from the first thermal insulation 4 more moisture, which accumulates in new moisture accumulations 5 in the thermal insulation 8 so that an improved heat-insulating performance overall with an evened-out moisture content arises in the thermal insulation layer consisting of the two thermal insulations 4 and 8.Since the second thermal insulation 8 generally consists of new insulating material elements, which have only a low moisture content, the second thermal insulation 8 extracts from the first thermal insulation 4 more moisture, which accumulates in new moisture accumulations 5 in the thermal insulation 8 so that an improved heat-insulating performance overall with an evened-out moisture content arises in the thermal insulation layer consisting of the two thermal insulations 4 and 8.
Figure 2 shows a second exemplary embodiment of a roof structure, which is improved with respect to the distribution of the moisture in the roof structure.Figure 2 shows a second exemplary embodiment of a roof structure, which is improved with respect to the distribution of moisture in the roof structure.
The roof structure according to Figure 2 essentially corresponds to the roof structure according to Figure 1 so that the vapour barrier 2 is arranged on the supporting shell 1 and the original thermal insulation 4 as well as the roof seal 6 arranged thereon is arranged on the vapour barrier 2. Above the roof seal 6, the roof structure according to Figure 2 moreover comprises a second thermal insulation 8 as well as the second roof seal 10 arranged thereon.The roof structure according to Figure 2 essentially corresponds to the roof structure according to Figure 1 so that the vapor barrier 2 is arranged on the supporting shell 1 and the original thermal insulation 4 as well as the roof seal 6 arranged thereon is arranged on the vapor barrier 2. Above the roof seal 6, the roof structure according to Figure 2 moreover comprises a second thermal insulation 8 as well as the second roof seal 10 arranged thereon.
Between the roof seal 6 and the second thermal insulation 8 is arranged a hygroscopic storage layer 11, which absorbs and stores the moisture diffusing from the moisture accumulations 5 of the thermal insulation 4 through the openings 7 in the direction of the arrows 9 and thus in the direction of the thermal insulation 8. This design thus has the advantage that the moisture is not accumulated in the second thermal insulation 8 so that the two thermal insulations 4 and 8 achieve the highest possible heat-insulating performance, which is not negatively affected by moisture accumulations 5.Between the roof seal 6 and the second thermal insulation 8 is arranged a hygroscopic storage layer 11, which absorbs and stores the moisture diffusing from the moisture accumulations 5 of the thermal insulation 4 through the openings 7 in the direction of the arrows 9 and thus in the direction of the thermal insulation 8. This design thus has the advantage that the moisture is not accumulated in the second thermal insulation 8 so that the two thermal insulations 4 and 8 achieve the highest possible heat-insulating performance, which is not negatively affected by moisture accumulations 5.
The hygroscopic storage layer 11 consists of a thin insulation layer (not shown in more detail) comprising a storage medium for moisture, which takes the form of a granulate. The storage layer 11 is furthermore connected via a vapour barrier layer to the thermal insulation 8 so that the moisture absorbed by the storage layer 11 cannot be transferred into the thermal insulation 8 even when the storage layer 11 is highly saturated.The hygroscopic storage layer 11 consists of a thin insulation layer (not shown in more detail) comprising a storage medium for moisture, which takes the form of a granulate. The storage layer 11 is furthermore connected via a vapor barrier layer to the thermal insulation 8 so that the moisture absorbed by the storage layer 11 cannot be transferred into the thermal insulation 8 even when the storage layer 11 is highly saturated.
In the exemplary embodiment according to Figure 2, it is not necessarily required that the roof seal 6 be opened to form the openings 7. There is also the possibility not claimed that the roof seal 6 be completely removed prior to applying the storage layer 11, wherein a layer that evens out unevennesses in the thermal insulation 4 may then however need to be applied. The renovation of a roof structure according to Figure 3 to create a roof structure according to Figure 2 is carried out in accordance with the renovation described above of the roof structure according to Figure 3 to create a roof structure according to Figure 1, wherein the application of the storage layer 11 is however additionally provided. In order to limit the work of building workers in this area to a low level, it has proven to be advantageous to apply the storage layer 11 directly onto the already existing thermal insulation 4 together with the individual mineral fibre insulation elements of the thermal insulation 8. The thermal insulation 8 is subsequently covered by the roof seal 10.In the exemplary embodiment according to Figure 2, it is not necessarily required that the roof seal 6 be opened to form the openings 7. There is also no possibility that the roof seal 6 is completely removed prior to applying the storage layer 11, However, a layer that evens out unevennesses in the thermal insulation 4 may then need to be applied. The renovation of a roof structure according to Figure 3 to create a roof structure according to Figure 2 is carried out in accordance with the renovation described above of the roof structure according to Figure 3 to create a roof structure according to Figure 1, where the application however, the storage layer 11 is additionally provided. In order to limit the work of building workers in this area to a low level, it has proved advantageous to apply the storage layer 11 directly to the already existing thermal insulation 4 together with the individual mineral fiber insulation elements of the thermal insulation 8 The thermal insulation 8 is subsequently covered by the roof seal 10.
Claims (15)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005060260A DE102005060260B4 (en) | 2005-12-16 | 2005-12-16 | Process for the rehabilitation of a flat and / or flat roof of a building |
| PCT/EP2006/012139 WO2007073896A1 (en) | 2005-12-16 | 2006-12-15 | Method for renewing a flat and/or shallow-sloping roof of a building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK1960613T3 true DK1960613T3 (en) | 2018-06-06 |
Family
ID=37814494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK06829669.8T DK1960613T3 (en) | 2005-12-16 | 2006-12-15 | METHOD FOR RENOVATING A FLAT AND / OR FLAT Sloping ROOF ON A BUILDING |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1960613B1 (en) |
| DE (1) | DE102005060260B4 (en) |
| DK (1) | DK1960613T3 (en) |
| EA (1) | EA012832B1 (en) |
| HU (1) | HUE038101T2 (en) |
| PL (1) | PL1960613T3 (en) |
| UA (1) | UA87636C2 (en) |
| WO (1) | WO2007073896A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459521B (en) * | 2020-11-16 | 2022-02-15 | 中国矿业大学 | Structure for adding roof parking lot or gymnasium park to existing building and implementation method |
Family Cites Families (4)
| 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 (en) * | 1983-02-14 | 1986-06-11 | Rasmussen Oeystein | PROCEDURE FOR THE PREPARATION OF SELF-SEALING AND / OR NOT DRIPTING ROOF CONSTRUCTION. |
| DE19732769A1 (en) * | 1997-07-30 | 1999-02-18 | Gerthold Proeckl | Process for the renovation of an asbestos cement roof covering |
| 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. |
-
2005
- 2005-12-16 DE DE102005060260A patent/DE102005060260B4/en not_active Expired - Fee Related
-
2006
- 2006-12-15 UA UAA200808970A patent/UA87636C2/en unknown
- 2006-12-15 HU HUE06829669A patent/HUE038101T2/en unknown
- 2006-12-15 PL PL06829669T patent/PL1960613T3/en unknown
- 2006-12-15 EA EA200801519A patent/EA012832B1/en not_active IP Right Cessation
- 2006-12-15 EP EP06829669.8A patent/EP1960613B1/en active Active
- 2006-12-15 WO PCT/EP2006/012139 patent/WO2007073896A1/en active Application Filing
- 2006-12-15 DK DK06829669.8T patent/DK1960613T3/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005060260A1 (en) | 2007-06-28 |
| EP1960613A1 (en) | 2008-08-27 |
| PL1960613T3 (en) | 2018-08-31 |
| EP1960613B1 (en) | 2018-02-28 |
| WO2007073896A1 (en) | 2007-07-05 |
| DE102005060260B4 (en) | 2010-04-08 |
| UA87636C2 (en) | 2009-07-27 |
| EA200801519A1 (en) | 2008-10-30 |
| HUE038101T2 (en) | 2018-10-29 |
| EA012832B1 (en) | 2009-12-30 |
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