EP3077604B1 - Verfahren zum wasserdichtmachen einer dachabdeckung - Google Patents

Verfahren zum wasserdichtmachen einer dachabdeckung Download PDF

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Publication number
EP3077604B1
EP3077604B1 EP14816146.6A EP14816146A EP3077604B1 EP 3077604 B1 EP3077604 B1 EP 3077604B1 EP 14816146 A EP14816146 A EP 14816146A EP 3077604 B1 EP3077604 B1 EP 3077604B1
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EP
European Patent Office
Prior art keywords
seams
bitumen
membrane
layer
overlapping regions
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.)
Not-in-force
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EP14816146.6A
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English (en)
French (fr)
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EP3077604A1 (de
Inventor
Dirk Mertens
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.)
De Boer Waterproofing Solutions NV
De Boer Waterproofing Solutions N V
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De Boer Waterproofing Solutions NV
De Boer Waterproofing Solutions N V
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Publication of EP3077604A1 publication Critical patent/EP3077604A1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/149—Fastening means therefor fastening by welding
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D15/00—Apparatus or tools for roof working
    • E04D15/04—Apparatus or tools for roof working for roof coverings comprising slabs, sheets or flexible material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/141—Fastening means therefor characterised by the location of the fastening means
    • E04D5/142—Fastening means therefor characterised by the location of the fastening means along the edge of the flexible material

Definitions

  • the invention relates to a method for waterproofing a roof covering.
  • a flat roof usually consists of four layers: (starting from the bottom) a vapor barrier, an insulating layer, a bottom layer and a top layer. In this case, the air-tightness (vapor barrier) and the watertightness (bottom and top layer) are of prime concern.
  • bituminous membranes are used for this purpose.
  • the following classic techniques are used to apply bituminous membranes to flat roofs: Heat-welding - part of the bottom layer of the membrane is melted by means of a torch. After solidifying, this layer bonds to the substrate. No separate finish of the seams is required. Mechanical attachment - the membrane is attached to the substrate by means of screws fitted on the edge of the surface.
  • a relatively small torch In order to weld the seams (in the case of mechanical attachment or bonding using cold adhesive), a relatively small torch can be used which is especially designed to be pushed between the ends of the two adjacent membranes.
  • these types of roof covering are used when circumstances do not allow heat-welding to be used (e.g. if an insulating layer situated underneath could be damaged by the flame, or if the architect expressly forbids heat-welding for safety reasons).
  • a flameless sealing of the seams has to be resorted to.
  • the only alternative technique which can be used at present is hot-air welding. Via a flat nozzle which is pushed into a fold between the two membranes, the machine blows hot air into the seam.
  • the rear wheel pushes down on the formed weld.
  • the self-adhesive membranes have been developed specially for applications in which welding (heat-welding or hot-air welding) is undesirable.
  • the adhesive bonds at the seams should in principle be watertight.
  • experience shows that, due to capillary forces, moisture can still penetrate through the seams if the water pressure is high. For this reason, they are often only used as bottom layers. If a better (flameless) way could be found to seal the seams, self-adhesive membranes could also be used more frequently as top layers. There is therefore a need for a method which offers an alternative to the existing methods and overcomes one or more of the drawbacks.
  • EP 1 130 186 A2 discloses a method, wherein roof membranes are welded by induction heating.
  • the membrane comprises a top layer, a reinforcing layer, a metal layer and a bottom layer.
  • the metal layer is embedded in the bottom layer.
  • the invention and preferred embodiments thereof offer a solution to one or more of the above needs.
  • the invention comprises a method for fitting a roof covering according to claims 1 to 15.
  • a measurable value such as a parameter, an amount, a time duration, and so on
  • a measurable value such as a parameter, an amount, a time duration, and so on
  • the value to which the term “approximately” refers has, per se, also been disclosed. Any documents which are cited in the present specification are deemed to have been fully incorporated herein by reference.
  • the invention comprises a method according to claim 1 for fitting a roof covering in sections, wherein the roof covering comprises a membrane, wherein the membrane comprises bitumen and a metal, the method comprising the following steps:
  • the present method also has the advantage that relatively inaccessible parts (such as corners or edges) can be melted together by hand. As a result thereof, the roofer no longer requires an additional smaller welding apparatus (cf. hot-air and heat-welding).
  • the induction generator is provided with a removable part comprising the induction coil, by means of which the relatively inaccessible parts can be finished using a smaller part of the induction generator which can be manipulated by hand during fitting of the roof covering. This will be explained in more detail below.
  • bitumen is understood to mean a visco-elastic liquid which forms a natural component of petroleum. After fractional distillation, bitumen can be separated from other constituents of the petroleum, such as naphtha, gasoline or diesel, and remains behind as the heaviest constituent. Bitumen mainly consists of hydrocarbons. It is also possible to use substances of vegetable origin which are similar to bitumen as alternatives. For use in roof covering, bitumen is usually used in a modified form. Modified bitumen consists of bitumen and one or more chemical agents, such as inter alia polymers and additives, such as resins and waxes.
  • bitumen modified with styrene butadiene styrene SBS
  • bitumen modified with thermoplastic polyolefins TPO
  • bitumen modified with atactic polypropylene APP
  • seams is understood to mean the gaps between two sections of roof covering. More specifically, the seam is understood to be the location where two sections of material are or will be attached to each other.
  • overlapping regions is understood to mean the area in which two sections of roof covering or membranes overlap one another.
  • the speed of the generator is regulated based on a measurement of the power, i.e.
  • the power provided to the seams and/or overlapping regions via the induction coil will be measured by measuring the power consumed by the induction coil (power output). More particularly, the present inventors have found that in practice, the power provided to the seams and/or overlapping regions can be considered being approximately equal to or a certain fraction of the power consumed by the induction coil.
  • the speed may be regulated based on the power provided to the seams, such that the energy density which is provided to the seams and/or overlapping regions is constant, or within a certain predetermined range.
  • energy density monitoring refers to the (heat) energy provided per unit of length.
  • the power is equal to the (heat) energy per unit of time.
  • the speed required for providing a predetermined energy density to the seams and/or overlapping regions can be determined by measuring the power provided to the seams and/or overlapping regions, and dividing the measured power by the predetermined energy density. More particularly, the higher the power output of the induction coil the lower the speed will be, and vice versa.
  • the speed of the generator may be regulated (automatically) in order to provide the seams and/or overlapping regions with a predetermined energy density.
  • the preferred energy density values can be determined empirically for each membrane type, and may depend of parameters such as membrane thickness, membrane composition, and membrane temperature.
  • the speed of the generator is regulated based on a measurement of the temperature of the seams and/or overlapping regions or overlapping membranes which are being heated using the induction generator. More specifically, the speed may be regulated (automatically) such that the temperature of the seams and/or overlapping regions is within a predetermined temperature range. Typically, a higher measured temperature will result in a lower speed. For example, the speed can be increased if the measured temperature is above a first value and decreased if the measured temperature is below a second value, wherein the first value is higher than or identical to the second value.
  • the preferred temperature can be determined empirically for each membrane type, and may depend of parameters such as membrane thickness and membrane composition.
  • the speed is determined or regulated by a temperature measurement of the bitumen in step (c); and the speed is adjusted so that the temperature is at least 60°C and at most 160°C, preferably at least 61°C and at most 150°C, preferably at least 62°C and at most 140°C, preferably at least 63°C and at most 130°C, preferably at least 64°C and at most 120°C, preferably at least 65°C and at most 110°C, preferably at least 66°C and at most 105°C, preferably at least 67°C and at most 100°C, preferably at least 68°C and at most 95°C, preferably at least 69°C and at most 92°C, preferably at least 70°C and at most 90°C, and preferably approximately 70°C, 75°C, 80°C, 85°C or 90°C.
  • the speed of the generator is regulated based on a combination of temperature measurements and power measurements as described above.
  • the present inventors have found that when moving the (induction coil of) the generator by hand, e.g. for details which are difficult to access, the best results were obtained when regulating the speed based on a temperature measurement.
  • the speed may be regulated based on a temperature measurement when the induction coil is moved manually; and based on a power measurement when the induction coil is moved automatically.
  • the speed is at least 1 m/min and at most 15 m/min, preferably at least 2 m/min and at most 10 m/min, preferably at least 3 m/min and at most 7 m/min, and preferably 3 m/min, 3.5 m/min, 4 m/min, 4.5 m/min, 5 m/min, 5.5 m/min, 6 m/min, 6.5 m/min or 7 m/min.
  • temperature monitoring and/or energy density monitoring may be used to regulate both the speed and the power of the induction coil. This may allow for a smoother movement of the induction generator.
  • the method furthermore comprises the step:
  • the one or more seams have a width of at most 5 mm, preferably at most 2.5 mm, preferably at most 1.0 mm, preferably at most 0.5 mm, preferably at most 0.2 mm, preferably at most 0.1 mm.
  • a membrane on top of the seam is preferably a membrane identical to the other membranes. Sealing is effected by treating the sealing strip via induction in the way as described herein.
  • the membrane used in the method comprises the following layers:
  • the membrane may also comprise other layers, such as a finishing layer, a foil/film, a fleece, a web, etc.
  • the membrane may, for example, comprise further finishing layers.
  • the membrane may comprise a top finishing layer, in which use is made of materials such as sand, slate chippings, granules, stone chippings, anthracite, fleece, etc.
  • the membrane may comprise a bottom finishing layer, in which use is made of materials such as sand, slate chippings, granules, stone chippings, anthracite, fleece, etc.
  • the top finishing layer and the bottom finishing layer may be the same or different.
  • the present inventors have found that an improved adhesion between overlapping membranes can be obtained if the parts of the top coating (i) and bottom coating (iv) which are part of overlapping areas and are to be melted together, are free from finishing layers, in particular finishing layers comprising sand, slate chippings, granules, stone chippings, anthracite, fleece, etc.
  • the top coating (i) of the membranes may be provided with a top finishing layer, except for a lateral strip which is free from said finishing layer.
  • the strip preferably has a width of at least 5 cm and at most 20 cm, preferably at least 7 cm and at most 14 cm. Most preferably, such strip has a width of approximately 10 cm.
  • the lateral strip is typically provided in the longitudinal direction of the membrane as shown in Fig. 3A , but may continue in the transverse direction, as shown in Fig. 3B .
  • the bottom coating (iv) of the membranes may be provided with a bottom finishing layer, except for a lateral strip which is free from said finishing layer.
  • the strip preferably has a width of at least 5 cm and at most 20 cm, preferably at least 7 cm and at most 14 cm. Most preferably, such strip has a width of approximately 10 cm.
  • the lateral strip may be provided in the longitudinal direction only, or continue in the transverse direction.
  • the membranes are provided with a top finishing layer and a bottom finishing layer, except for a strip as described above, it is preferred that the strip of the top coating and the strip of the bottom layer are provided on laterally opposed sides of the membrane.
  • the strips may be obtained by covering the membrane with a protective foil strip when applying the finishing layer.
  • the bottom layer may be provided with an adhesive, more particularly to make the membrane self-adhesive.
  • Self-adhesive membranes are currently primarily used as bottom layers, as their seams are typically not sufficiently watertight.
  • the present membranes further comprise a metal layer (iii) which allows for inductive heating, the watertightness of the seams can be significantly improved, such that the self-adhesive layers can also be used as top layers.
  • the top coating (i) comprises modified bitumen.
  • the top coating (i) has a thickness of 0.1 to 5.0 mm.
  • the bottom coating (iv) comprises modified bitumen.
  • the bottom coating (iv) has a thickness of 0.1 to 5.0 mm.
  • the thickness of the top coating (i) may be the same or different from the thickness of the bottom coating (iv).
  • the modified bitumen is preferably a mixture of bitumen and plastics, polymers and/or thermoplastic polymers.
  • plastics such as chlorosulfonyl polyethylene (CSM), ethylene ethyl acrylate (EEA), ethylene butyl acrylate (EBA), ethylene copolymer bitumen (ECB or EBT), ethylene vinyl acetate (EVAC), flexible polyolefin (FPO or PO-F), flexible polypropylene (FPP or PP-F), polyethylene (PE), chlorinated polyethylene (PE-C), polyisobutylene (PIB), polypropylene (PP) and/or polyvinyl chloride (PVC) are used.
  • CSM chlorosulfonyl polyethylene
  • ESA ethylene ethyl acrylate
  • EBA ethylene butyl acrylate
  • EBT ethylene copolymer bitumen
  • EVAC ethylene vinyl acetate
  • FPO or PO-F flexible polypropylene
  • PE polyethylene
  • PE-C chlorinated polyethylene
  • PIB polyisobutylene
  • PP poly
  • polymers such as butadiene, chloroprene, chlorosulfonyl polyethylene, terpolymer of ethylene or propylene, isobutene isoprene and/or acrylonitrile butadiene are used.
  • thermoplastic polymers such as elastomers, styrene ethylene butylene styrene, crosslinked and non-crosslinked thermoplastic elastomers, styrene butadiene styrene (SBS), styrene isoprene styrene (SIS), thermoplastic polyolefins (TPO) and/or atactic polypropylene (APP) are used.
  • bitumen modified with styrene butadiene styrene (SBS), bitumen modified with atactic polypropylene (APP) and/or bitumen modified with thermoplastic polyolefins (TPO) is used.
  • SBS styrene butadiene styrene
  • APP bitumen modified with atactic polypropylene
  • TPO thermoplastic polyolefins
  • the top coating (i) and bottom coating (iv) have different compositions. Excellent results can be obtained using materials having a different hardness, more specifically when the top layer is harder than the bottom layer.
  • the top coating (i) contains bitumen modified with atactic polypropylene (APP) and/or bitumen modified with thermoplastic polyolefins (TPO) and the bottom coating (iv) contains bitumen modified with styrene butadiene styrene (SBS).
  • the top coating (i) may not have a uniform composition. More particularly, the composition of the top coating (i) may vary along the width of the membrane. For example, the top coating (i) may have regions which have essentially the same composition as the bottom coating (iv), and regions which have a different composition than the bottom coating (iv).
  • the region having essentially the same composition as the bottom coating (iv) is a strip (9) along a lateral edge of the membrane (1), as shown in Fig. 4 .
  • the strip has a width of at least 5 cm and at most 20 cm, preferably at least 7 cm and at most 14 cm, more preferably approximately 10 cm. This ensures that the overlapping regions of the membranes have uniform properties, while still allowing using different compositions for the top coating (i) and bottom coating (iv).
  • the composition of the bottom coating (iv) may vary along the width of the membrane.
  • the reinforcing layer (ii) comprises polyester, glass, polyester/glass, etc.
  • the reinforcing layer ensures that the membrane provides sufficient support and mechanical properties to the membrane. Polyester and polyester/glass composite materials are particularly preferred. The inventors have found that such reinforcing layers result in membranes which are less prone to stretch forces.
  • the reinforcing layer (ii) comprises scrim, gauze, fleece, etc, preferably a scrim or gauze such as glass scrim, polyester scrim, polyester/glass scrim, etc.
  • the use of glass scrim, polyester scrim and/or polyester/glass scrim in the reinforcing layer; and particularly polyester scrim and/or polyester/glass composite scrim provides the membrane with ideal strength.
  • the membrane comprises metal.
  • the membrane comprises aluminum, copper, iron, or an alloy such as steel (preferably stainless steel), more preferably the membrane comprises aluminum.
  • the metal layer (iii) comprises aluminum, copper, iron, or an alloy such as steel, for example stainless steel.
  • the metal layer (iii) comprises aluminum.
  • the metal layer (iii) has a thickness of at least 10 ⁇ m and at most 500 ⁇ m, preferably of at least 30 ⁇ m and at most 300 ⁇ m, preferably of at least 40 ⁇ m and at most 200 ⁇ m.
  • the metal layer (iii) is present at a weight per unit area of at least 10 g/m 2 and at most 500 g/m 2 , preferably of at least 40 g/m 2 and at most 300 g/m 2 , preferably of at least 60 g/m 2 and at most 200 g/m 2 , preferably of at least 80 g/m 2 and at most 200 g/m 2 , preferably of at least 100 g/m 2 and at most 150 g/m 2 .
  • the metal layer (iii) is a partial layer or edge layer which is present at the (lateral and/or transversal) edges of the roof covering, preferably the metal layer is arranged at a distance of at most 20 cm from at least one of the edges of the membrane, preferably at a distance of at most 10 cm, preferably at a distance of at most 5 cm, preferably at a distance from the edge of at most 1 cm, preferably on at least one of the edges of the membrane.
  • the provision of the metal layer (iii) as a partial layer or edge layer allows for reducing the material cost for producing the membranes.
  • the metal layer (iii) is a partial layer selected from the group comprising: one or more strips, a lattice, or one or more threads.
  • the metal layer (iii) is a strip having a width of at least 0.1 cm and at most 110 cm, preferably at least 2 cm and at most 15 cm, preferably at least 4 cm and at most 6 cm, preferably approximately 5 cm. Such a width may ensure optimum heat control. If the strip is too narrow, the bitumen does not heat up to a sufficient degree, while a strip which is too wide may lead to burning through. Whereas the provision of only a lateral edge with a metal layer is quite simple, the provision of a lateral edge and a transversal edge of the membrane is more complex. Therefore, in certain embodiments, the metal layer (iii) may be provided along essentially the entire width and length of the membrane.
  • Such metal layer (iii) may be partial layer, e.g. a metal foil provided with perforations.
  • the perforations may result in various foil geometries, and may include lattice structures.
  • the metal layer (iii) comprises a lattice.
  • the use of a metal layer in the form of a lattice ensures uniform heat distribution across the membrane.
  • the lattice may be a rectangular or square lattice.
  • the metal layer (iii) comprises one or more threads, preferably with the one or more threads running parallel to one another or the one or more threads running perpendicular to one another.
  • the membrane has a total thickness of at least 0.5 mm and at most 10.5 mm, preferably of at least 0.5 mm and at most 5 mm; for example about 3 mm.
  • the generator comprises means for determining the power provided to the one or more seams and/or overlapping regions. More particularly, the generator may comprise means for determining the power output or power consumed by the induction coil.
  • the induction generator comprises a means for temperature monitoring. Typically, the generator will also comprise a computer chip which is provided with software for regulating the speed of the generator based on the measured power and/or temperature.
  • the induction generator is limited in weight and size.
  • the induction generator weighs at most 30 kg, more preferably at most 25 kg, more preferably at most 20 kg.
  • the induction generator is provided with associated air cooling means.
  • the induction generator is self-propelled.
  • the induction generator is safe and ergonomic.
  • the means for temperature monitoring comprises an infrared (IR) sensor, more preferably an IR sensor with laser aligner. An IR sensor allows for determining the temperature of the membrane surface, which is indicative of the internal temperature at the seam or overlapping region.
  • the induction generator comprises a location-determining means.
  • the location-determining means comprises a GPS, preferably a real-time kinematic GPS.
  • the induction generator described herein is provided with one or more induction coils.
  • the induction generator comprises two induction coils in line with one another, wherein the induction coils are configured to heat up the metal.
  • the induction generator comprises a single induction coil.
  • the induction generator comprises a removable part comprising an induction coil. More particularly, the induction generator may be provided on a removable part which is connected to the rest of the induction generator via one or more cables, thereby allowing movement of said removable part with respect to the rest of the induction generator.
  • the removable part also comprises the location-determining means.
  • the removable part may be used for sealing the cross seams (end seams) and seams on non-horizontal surfaces.
  • the removable part is preferably connected to a central part of the induction generator via a power and/or data cable.
  • This central part preferably comprises a motor, an induction coil (preferably with a fan for air cooling) and/or a processor.
  • the central part preferably comprises an induction coil which is situated closer to the edge of the membrane and causes hot bitumen to flow out. This acts as a visual check for the watertightness.
  • the induction generator is manipulated by a roofer by means of an extending and/or adjustable arm, which is optionally provided with an operating display. The electrical power may be provided via the arm.
  • the induction generator comprises a pressure-exerting roller.
  • the induction generator comprises at least two wheels, with one wheel preferably serving as a pressure-exerting roller. Preferably, this is the largest wheel.
  • the induction generator comprises at least three wheels, with one wheel preferably serving as a pressure-exerting roller.
  • the induction generator will be provided with an interface which allows for the user to select a predetermined temperature or temperature range which is to be achieved.
  • the induction generator will be provided with an interface which allows for the user to select a predetermined energy density or energy density range which is to be achieved.
  • Such interface may comprise elements such as knobs, dials, a screen, a touchscreen, and the like.
  • the induction generator comprises a U-shaped inductor or a pot-shaped inductor.
  • the induction generator comprises a U-shaped inductor. This embodiment makes it possible to transfer more energy to the metal.
  • the induction generator has a frequency of at least 10 kHz and at most 400 kHz. The generator will typically move in a direction such that the seams and/or overlapping regions of the membranes are first heated, and then pressed with a pressure-exerting roller.
  • the induction coil and pressure-exerting roller may be provided such that their relative position is interchangeable.
  • the induction generator may be provided with a handle which can be moved between two positions, more particularly to the front and to the back of the generator. This allows for the user to choose whether to walk behind or in front of the generator, thereby facilitating the use thereof.
  • Duo Tack 3 AGR/F C250 was used as membrane. This membrane has a top coating of TPO plastomer bitumen, a reinforcing layer of polyester and glass scrim and a bottom coating of SBS elastomer self-adhesive bitumen. A glass scrim with the aluminum facing downwards was used as reinforcing layer.
  • test sections were prepared. After the backing film had been removed, the test sections were placed on top of each other and pressed down using a foot. The test sections, except the reference sections, were made watertight by means of induction, with the speed being varied.
  • test sections are additionally pressed down again by running a pressure-exerting roller over them once.
  • the machine was passed across the test piece 3 times in succession, after which they were additionally pressed down by running the pressure-exerting roller over them once. The overlap was 10 cm wide.
  • test sections were cut into the correct test shape according to European standard CSN EN 12316-1 and CSN EN 12317-1 3 days after being stuck together.
  • the peel strength and shear strength tests were carried out (initial) and the samples for ageing (28 days at 80°C) were inserted.
  • Tables 1 and 2 show the results of these tests, with the results in bold type indicating that the seam became detached.
  • the peel strength tests show that the value of the peel strength test drops with the reference samples after ageing. The values of the samples with induction are similar to the initial values. The value of the peel strength test increases for the shear strength tests on the longitudinal and cross seams.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
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  • Structural Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Tents Or Canopies (AREA)

Claims (15)

  1. Verfahren zum Montieren einer Dachabdeckung in Abschnitten, wobei die Dachabdeckung eine Membran (1) umfasst, wobei die Membran Bitumen und ein Metall umfasst, wobei das Verfahren die folgenden Schritte umfasst:
    (a) Montieren der Dachabdeckung in Abschnitten, wobei eine oder mehrere Nähte und/oder überlappende Regionen zwischen den Abschnitten der Dachabdeckung gebildet werden;
    (b) Erwärmen des Metalls in der einen oder den mehreren Nähten und/oder überlappenden Regionen mittels magnetischer Induktion; und
    (c) Zusammenschmelzen des Bitumens in der einen oder den mehreren Nähten und/oder überlappenden Regionen durch Erwärmen des Metalls in Schritt (b);
    wobei Schritt (b) durchgeführt wird, indem ein Generator, der eine Induktionsspule umfasst, mit einer bestimmten Geschwindigkeit über der einen oder den mehreren Nähten und/oder überlappenden Regionen bewegt wird, und wobei die Geschwindigkeit basierend auf folgenden Messungen geregelt wird:
    - der Leistung, die mittels der Induktionsspule der einen oder den mehreren Nähten und/oder überlappenden Regionen bereitgestellt wird; oder
    - der Temperatur der Nähte und/oder überlappenden Regionen; oder
    - einer Kombination davon;
    wobei die Membran die folgenden Schichten umfasst:
    (i) eine Deckbeschichtung (5), die Bitumen und/oder modifiziertes Bitumen umfasst, auf
    (ii) einer Verstärkungsschicht (6), auf
    (iii) einer vollständigen oder teilweisen metallischen Schicht (7) auf
    (iv) einer Unterseitenbeschichtung (8), die Bitumen und/oder modifiziertes Bitumen umfasst;
    wobei die Deckbeschichtung (5) und die Unterseitenbeschichtung (8) unterschiedliche Zusammensetzungen aufweisen.
  2. Verfahren nach Anspruch 1, wobei die Geschwindigkeit durch eine Temperaturmessung des Bitumens in Schritt (c) bestimmt oder geregelt wird; und wobei die Geschwindigkeit so angepasst wird, dass die Temperatur mindestens 60 °C und höchstens 160 °C ist.
  3. Verfahren nach Anspruch 1 oder 2, wobei die Geschwindigkeit mindestens 0,5 m/min und höchstens 15 m/min ist.
  4. Verfahren nach einem der Ansprüche 1 bis 3, ferner umfassend den Schritt:
    (d) Herunterdrücken der Membran in die eine oder mehreren Nähte und/oder überlappenden Regionen.
  5. Verfahren nach einem der Ansprüche 1 bis 4, wobei die Verstärkungsschicht (6) einen Gitterstoff oder eine Gaze umfasst.
  6. Verfahren nach einem der Anspruch 5, wobei die Verstärkungsschicht (6) einen Glasgitterstoff, einen Polyestergitterstoff und/oder einen Polyester/Glas-Gitterstoff umfasst.
  7. Verfahren nach einem der Ansprüche 1 bis 6, wobei die Metallschicht (7) sich unter der Verstärkungsschicht (6) befindet, wenn die Membran auf einem Dach montiert wird.
  8. Verfahren nach einem der Ansprüche 1 bis 7, wobei die Deckbeschichtung (5) modifiziertes Bitumen umfasst, und/oder wobei die Unterseitenbeschichtung (iv) modifiziertes Bitumen umfasst.
  9. Verfahren nach einem der Ansprüche 1 bis 8, wobei der Generator Mittel zur Temperaturüberwachung umfasst, wobei das Mittel zur Temperaturüberwachung vorzugsweise einen IR-Sensor mit einem Laser-Ausrichter umfasst.
  10. Verfahren nach einem der Ansprüche 1 bis 9, wobei die Metallschicht (7) Aluminium umfasst.
  11. Verfahren nach einem der Ansprüche 1 bis 10, wobei die Metallschicht (7) eine Teilschicht oder Kantenschicht ist.
  12. Verfahren nach einem der Ansprüche 1 bis 11, wobei die Metallschicht (7) eine Teilschicht ist, die ausgewählt ist aus der Gruppe, welche einen oder mehrere Streifen, ein Gitterwerk oder einen oder mehrere Fäden umfasst.
  13. Verfahren nach einem der Ansprüche 1 bis 12, wobei die Metallschicht (7) ein Band mit einer Breite von mindestens 0,1 cm und höchstens 110 cm ist.
  14. Verfahren nach einem der Ansprüche 1 bis 13, wobei der Generator ein Ortsbestimmungsmittel umfasst.
  15. Verfahren nach Anspruch 14, wobei das Ortsbestimmungsmittel ein GPS umfasst, vorzugsweise ein kinematisches Echtzeit-GPS.
EP14816146.6A 2013-12-05 2014-12-05 Verfahren zum wasserdichtmachen einer dachabdeckung Not-in-force EP3077604B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2013/0815A BE1021183B1 (nl) 2013-12-05 2013-12-05 Methode voor het waterdicht verzegelen van dakbedekking
PCT/EP2014/076709 WO2015082680A1 (en) 2013-12-05 2014-12-05 Method for waterproofing a roof covering

Publications (2)

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EP3077604A1 EP3077604A1 (de) 2016-10-12
EP3077604B1 true EP3077604B1 (de) 2019-02-20

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JP (1) JP6553079B2 (de)
BE (1) BE1021183B1 (de)
DK (1) DK3077604T3 (de)
NZ (1) NZ721412A (de)
WO (1) WO2015082680A1 (de)

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WO2026046731A1 (en) * 2024-08-26 2026-03-05 Roslev Sustainable Holding Aps Method of manufacturing a length of a composite sheet material

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JP2018526656A (ja) * 2015-06-19 2018-09-13 オーエムジー インコーポレイテッド 取付システム及び建築部材をマッピングする方法
NL2023452B1 (en) * 2019-07-08 2021-02-02 Univ Delft Tech Inductive Bituminous Waterproofing Membrane
EP4050176B1 (de) * 2021-02-25 2025-09-24 Wilfried Santo Verfahren zum herstellen einer durchführung durch einen dachbelag
IL304785B2 (en) * 2023-07-26 2024-06-01 Bnp Innovation Ltd Surface coating and method of use

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FR2622144B1 (fr) * 1987-10-27 1990-03-09 Gerland Etancheite Sa Procede de soudure de chapes d'etancheite, chapes d'etancheite et dispositif soudeur pour la mise en oeuvre dudit procede
JPH03271450A (ja) * 1990-03-20 1991-12-03 Kaname Yamamoto アスファルト防水施工法および材料
SE501045C2 (sv) * 1990-09-17 1994-10-24 Roofer Int Ab Sätt vid läggning av takpapp och anordning för genomförande av förfarandet
DE10008689A1 (de) * 2000-02-24 2001-10-04 Vedag Dachsysteme Gmbh & Co Kg Verfahren zum Verlegen bituminöser Dichtungsbahnen und dafür geeignete Dichtungsbahnen und daraus hergestellte Dachabdichtung
US20050103437A1 (en) * 2003-11-19 2005-05-19 Carroll James M. Seaming iron with automatic traction
JP5212764B2 (ja) * 2006-06-08 2013-06-19 日新工業株式会社 屋根下葺材及びその施工方法
ITVI20120068A1 (it) * 2012-03-26 2013-09-27 Gen Membrane S P A Dispositivo di connessione per fogli di membrane bituminose e membrana bituminosa comprendente un dispositivo di connessione

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WO2026046731A1 (en) * 2024-08-26 2026-03-05 Roslev Sustainable Holding Aps Method of manufacturing a length of a composite sheet material

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WO2015082680A1 (en) 2015-06-11
BE1021183B1 (nl) 2015-06-09
DK3077604T3 (da) 2019-05-06
EP3077604A1 (de) 2016-10-12
JP6553079B2 (ja) 2019-07-31
JP2017503098A (ja) 2017-01-26
NZ721412A (en) 2020-11-27

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