EP0795659A1 - Dachkonstruktion - Google Patents

Dachkonstruktion Download PDF

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Publication number
EP0795659A1
EP0795659A1 EP97103028A EP97103028A EP0795659A1 EP 0795659 A1 EP0795659 A1 EP 0795659A1 EP 97103028 A EP97103028 A EP 97103028A EP 97103028 A EP97103028 A EP 97103028A EP 0795659 A1 EP0795659 A1 EP 0795659A1
Authority
EP
European Patent Office
Prior art keywords
roof
support
structure according
roof structure
supporting
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.)
Ceased
Application number
EP97103028A
Other languages
German (de)
English (en)
French (fr)
Inventor
Egon Vetters
Karl-Heinz Jarosch
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.)
Pfleiderer Dammstofftechnik & Co GmbH
Original Assignee
Pfleiderer Dammstofftechnik & Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pfleiderer Dammstofftechnik & Co GmbH filed Critical Pfleiderer Dammstofftechnik & Co GmbH
Publication of EP0795659A1 publication Critical patent/EP0795659A1/de
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
    • 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
    • E04D13/1612—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
    • 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
    • E04D13/1612—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
    • E04D13/1618—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters with means for fixing the insulating material between the roof covering and the upper surface of the roof purlins or rafters
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B2001/741—Insulation elements with markings, e.g. identification or cutting template

Definitions

  • the present invention relates to a roof construction for pitched roofs or the like covered with roofing slabs.
  • a roof construction comprising an insulation system in which, as an insulation layer, parallel to the eaves, rollable thermal insulation sheets are loosely placed on a formwork and are held in position at certain intervals by supporting planks that also run parallel to the eaves. Due to the wooden planks, which are laid at a mutual distance of approximately 2 m, there is a multiple interruption of the thermal insulation layer laid on the formwork, so that cold or thermal bridges are formed in the area of the planks. If the support planks were omitted, there would also be no satisfactory insulation effect from the installed thermal insulation sheets, since then the load of the roof consisting of its own weight, snow and wind loads would compress the thermal insulation sheets.
  • the battens for the roof covering are then applied to the support planks of the second layer of insulation perpendicular to the eaves.
  • the continuous heat or cold bridges, which are caused by the support planks, are reduced in the subject of DE-OS 34 35 648 to essentially point-like points at which the mutually perpendicular support planks of the first and second insulation layers cross, so that the Insulation properties of this roof structure are quite improved compared to the previously mentioned DE-OS 28 39 767, nevertheless this roof structure results in not inconsiderable disadvantages.
  • This insulation system is very time-consuming and therefore costly to erect due to the large number of supporting planks and insulation sheeting, since double insulation is required for the roof, namely the insulation layer of the first layer and then the insulation layer of the second layer that runs perpendicular to it . Furthermore, this double-layer design with a large number of required support planks results in an undesirable increase in the roof weight. The provision of the additional support planks is also disadvantageous from a fire protection point of view.
  • Carrier battens that run perpendicular to the ridge and eaves are then placed directly on this lamination, which then hold the cross battens for laying the roof covering panels.
  • the support battens are fastened by nailing through the lamination, the material of the insulation panels and the visible formwork into the rafters below.
  • the total roof load also increases significantly.
  • the thicker the thermal insulation boards the higher the shear load acting in the direction of the eaves, which results in higher bending moments on the fastening means of the thermal insulation boards. After all, such thick panels are also cumbersome to handle, cut and lay.
  • a roof construction for roofs covered with roofing slabs such as rafters roofs, steel purlin roofs, solid roof structures made of concrete or the like, is known with a supporting formwork attached to rafters, a foil-like vapor barrier laid on the supporting formwork, an insulation layer which is on the vapor barrier is laid, and a water-repellent and diffusion-open film, which is laid separately on the insulation layer and covers it.
  • the roof structure is characterized in that the insulation layer is made up of at least two types of strips, which are laid alternately individually and parallel to the ridge without gaps, the one type of strip being used to absorb the roof load of the roof parts above the insulation layer, which is introduced by means of basic battens and brick battens in relation to the other type of strip, which is unloaded and is used exclusively for insulation purposes, has a significantly higher compressive strength and is several times narrower than said other type of strip.
  • the water-repellent, diffusion-open film mentioned at the outset is laid and the individual battens of the basic battens are pre-drilled in the area of the load-bearing strips and through the insulation layer with the rafter crossing points below Rafter nails nailed. Then the tile battens running across the basic battens are installed and the roof covering slabs are laid on them.
  • this roof construction has various disadvantages.
  • the two types of insulation layer strips laid parallel to the ridge are not weatherproof during or after their installation, but must only be covered with the water-repellent, breathable film afterwards. Because this coverage works for a period of time need, the insulation layer can easily be damaged by rain or the like. Due to the above-mentioned work steps, a longer period of good weather must also be planned in order to carry out the roof construction, which under certain circumstances can lead to a not inconsiderable time delay.
  • both the previously described, exposed insulation layer basic construction and the subsequently applied protective film which is essentially only fixed in position by the basic battens which are then mounted on the film, are very susceptible to wind, which in turn makes the construction project very weather-dependent and also increases the risk of accidents during construction work.
  • the base slats can only be nailed to the load-bearing strips at their crossing points with these and the rafters crossing points below, which means that due to the spacing of the individual load-bearing strips from each other, not only a load concentration at a rather small number of highly loaded fixing points, but also a large pressure load on the load-bearing strips are formed at these points.
  • condensation water or water that has penetrated into the insulation layer due to any damage to the roof structure can accumulate in front of the strips, in particular as a result of the load-bearing strips running parallel to the roof edge, and thus lead to impairment of the insulation layer.
  • the invention is therefore based on the object of providing a simple and effective roof structure which largely avoids the disadvantages inherent in the roof structures according to the known prior art.
  • the roof construction according to the invention comprises for steep roofs covered with roofing panels or The like essentially a roof structure comprising a plurality of rafters, a supporting formwork arranged on the rafters, a film-like vapor barrier laid on the supporting formwork, and on the supporting formwork and the film-like vapor barrier arranged directly above the rafters, essentially parallel to them, and in the fall line of the roof and extending with the rafters, elongated support slats made of highly compressed mineral wool, which absorb the roof load of the roof parts lying above the support slats, as well as an insulating material laid between the support slats on the vapor barrier with an insulation facing the roof covering support arrangement Side diffusion-open, weather-resistant and / or waterproof lamination, which is directly or indirectly connected to the support slats.
  • a roof covering support arrangement is to be understood, for example, as the tile and / or base battens that support the roof covering panels or roof tiles.
  • a support lamella can also be composed of a plurality of shorter support lamella segments which are of essentially the same design and which form a single support lamella strung together at the end face and extend essentially over the entire length of a rafter. The shorter support lamella segments are easier to handle and transport.
  • the roof construction according to the invention makes it possible to provide an uninterrupted insulation layer without local heat or cold bridges, since a material and component combination is realized with the load-bearing support slats made of highly compressed mineral wool and the insulation material laid between the support slats, which has essentially uniform insulation properties. Due to the load-bearing supporting lamellas, the insulation between the supporting lamellas is not mechanically stressed by the roof structure above the insulation layer. in particular not under pressure, so that, for example, simple, soft and comparatively thin felts can be used as insulation, which can be provided very inexpensively and thus make a significant contribution to reducing the cost of the entire roof structure.
  • the support lamellae are arranged directly above and parallel to the rafters, the support lamellae not only achieve a constructively advantageous direct introduction of the roof loads into the rafters, but the support lamellae which extend essentially over the entire length of the rafters are also simple and effective and can be connected to the rafters in a variety of ways and permit large-scale load transfer while largely avoiding local load concentrations. Thanks to this arrangement according to the invention, the support slats can also be made from light materials with the positive insulation properties already described, which also reduces the weight of these components and simplifies the handling of the support slats in roof construction.
  • the roof construction according to the invention also has the advantage that a closed, weather-resistant, provisional roof surface is created even after the insulation elements have been laid between the supporting slats.
  • the roof construction according to the invention is very stable both during the construction of the insulation layer and also when the provisional roof surface is finished due to the direct or indirect connection of the supporting slats with the lamination of the insulation material under the action of wind, which in turn reduces the weather dependency when building the roof construction according to the invention and also increases it Occupational safety contributes.
  • a supporting lamella of the roof structure has an essentially perpendicular fiber arrangement.
  • This fiber arrangement favors a high compressive strength of the support lamella for receiving or transmitting the roof loads to the underlying rafters and also allows a fastening element corresponding to a rafter to be passed through it without any appreciable impairment of the strength properties of the support lamella.
  • the mineral wool material of the support lamella has a density of approximately 25 to 100 kg / m 2 .
  • a support plate comprises one or more plate plates arranged vertically next to one another. This is particularly advantageous if a support plate is to be assembled from several thin plate plates for manufacturing reasons.
  • the individual lamella plates of a support lamella need not necessarily have the same physical properties.
  • the lamella plates can be connected to one another by means of suitable connecting means, such as toothing, adhesive bonding, local welding of the mineral wool material, mechanical connecting means and the like.
  • a support plate has at least one stiffening web which extends essentially over the entire height of the support plate.
  • This stiffening web can be made of any suitable material, for example highly compressed mineral wool, preferably of higher density than the rest Mineral wool material of the support lamella, wood, in particular plywood or particle board, foamed or non-foamed plastic, paper, cardboard, gypsum board, metal and the like and combinations thereof, and is used to increase the pressure resistance and rigidity of the support lamella.
  • the stiffening web should preferably have essentially the same insulating properties as the highly compressed mineral wool material of the supporting lamella.
  • the stiffening web is connected to the mineral wool material of the support lamella using suitable fastening means.
  • the stiffening web can have relief bores or the like.
  • a supporting lamella has at least one laminated, weather-resistant and / or waterproof reinforcement belt on its side facing the roof covering support arrangement, that is to say on the weather side.
  • This reinforcement belt enables a cheap, large-scale introduction of the forces acting on the support plate from the roof load or additional components.
  • the reinforcement belt can introduce into the support lamella without affecting the mechanically more sensitive glass wool material.
  • the reinforcement belt can be used as a connecting means for individual slat plates.
  • a further positive embodiment of the invention provides that the reinforcing belt is wider than the supporting lamella and projects beyond it with a lateral projection.
  • the support plate therefore takes on a cross-sectional shape that resembles a T-beam. This not only causes an increase in the section modulus of the support lamella, but also makes it possible also to press the insulating material laid between the supporting slats on the vapor barrier, which is usually reversibly deformable due to its consistency, with its side edges under the side reinforcing belt protrusion and thus to be fixed in position in the simplest way by clamping action. Even when using an essentially rigid insulation material, such as hard foam or the like, the insulation material can be fastened in the said manner.
  • the reinforcing belt has coupling elements on its end faces pointing in the direction of the longitudinal extension of the supporting lamella.
  • these coupling elements facilitate the joining and exact positioning of these individual parts.
  • tongue and groove elements, toothing and the like can be used as coupling elements.
  • Comparable coupling elements can additionally or alternatively also be provided on the front ends of the mineral wool material of the support plate.
  • a coupling element is, inter alia, the above, but via the Front end of the support lamella extended stiffening web is conceivable, which could serve for engaging in a corresponding recess of a similarly designed support lamella segment for positioning lined up segments.
  • the reinforcing belt of the supporting lamella is preferably made of wood, in particular chipboard.
  • This material is not only very inexpensive, but can also be easily combined with the mineral wool material of the support lamella or laminated onto the mineral wool. In general, however, any other suitable material or a corresponding combination of materials can also be considered.
  • the reinforcement belt is made of a fire-retardant material.
  • a Pyroex® plate can be used as reinforcement belt material, which is classified in fire protection class B1.
  • other fire-retardant materials can also be used, even with a higher fire resistance and higher fire protection class.
  • the reinforcing belt of the support plate is provided with a film or fleece-like weather-resistant and / or waterproof covering which includes collapsible butt overlaps with adhesive strips, the butt overlaps being essentially parallel to the longitudinal direction of the reinforcing belt along the free one Extend the side edges and the adhesive strips can be connected to the insulating material laid on the vapor barrier between the laterally adjacent and mutually parallel support slats.
  • the film or fleece-like weather-resistant and / or water-resistant covering not only serves to protect the reinforcement belt itself from the weather, but also enables it with adhesive strips provided butt overlaps also an easy to establish connection with the lamination of the insulating material, the butt overlap overlapping the side edges of the insulating material and the adhesive strip adhering to the lamination.
  • a firm and windproof connection between the supporting slats and the insulation material is already established when the insulation layer of the roof structure is made, and the finished insulation layer offers temporary weather protection during the installation phase.
  • the material for the adhesive strips of the overlap is also expediently weather and / or water resistant.
  • the joint overlaps are folded at the factory on the reinforcement belt or on the side of the support slats so that they do not protrude laterally in this position.
  • a further overlap is provided on at least one end face of the reinforcing belt of the support plate and is used to produce an overlap with a support plate of the same design, which is attached to the first-mentioned support plate on the end face.
  • This variant is particularly recommended for the manner of attaching the film-like or fleece-like weather-resistant and / or waterproof covering described in the previous paragraph, which can then be formed in one piece.
  • a support plate which has such a feature is of course also to be understood as the individual support plate segment mentioned above.
  • the further butt overlap is preferably arranged at the lower end, that is to say the eaves-side end, of the reinforcement belt of the supporting lamella, so that, in the case of a plurality of lamellar segments which are lined up in a row, this further butt overlap of a higher-lying, i.e. closer to the ridge, the ridge-side end of one Deeper arranged, that is closer to the eaves support lamella can overlap like a scale, and so due to the connection of the overlap with the film or fleece-like weather-resistant and / or waterproof covering of this support lamella a favorable water drainage can be achieved.
  • the additional butt overlap can serve as a positioning aid and provisional fastening means when assembling a support plate segment, for example, the butt overlap of an already assembled support plate segment is glued to the support plate segment that is still to be fixed.
  • a fitter now has a free hand to precisely align the last-mentioned supporting lamella segment and fasten it in accordance with the regulations. Since the supporting lamellae of the roof construction according to the invention can be designed to be very lightweight, as described above, the further overlap of the joints can certainly take up the entire weight of a supporting lamella segment.
  • An additional advantageous feature of the invention provides that the film or fleece-like covering is arranged between the support plate and the reinforcing belt. This ensures a simple and durable fixation of the covering.
  • the thickness of the insulating material laid between laterally adjacent and parallel support slats is selected so that it essentially corresponds to the height of the support slat from its contact surface on the support formwork or the film-like vapor barrier to the bottom edge of the reinforcement belt, i.e. the top of the insulation material on the same Height with the covering, an effective and permanent connection between the insulation layer and the supporting lamella can be created not only by means of the overlaps of the covering provided with adhesive strips, but also an even layer of insulation layer, which is only surmounted by the reinforcement belts.
  • the film-like or fleece-like covering is arranged on the side facing the roof covering support arrangement, that is to say on the weather side, of the reinforcing belt and essentially covers the entire area.
  • the covering takes on a double function, namely on the one hand the provision of simple and effective weather protection for the reinforcement belt and on the other hand the creation of a weather-resistant connection between the support lamella and the insulating material by means of the overlap with adhesive strips.
  • this embodiment variant can also be used to create a flat insulating layer, the upper side of the reinforcing belt lying essentially on the same level as the upper side of the insulating material.
  • this version can in principle also be used in connection with insulating materials of smaller thickness.
  • the reinforcement belt of the support lamella comprises, on its side facing the roof covering support arrangement, a base batten which runs essentially parallel to the longitudinal extension of the support lamella.
  • This base bar is preferably formed as an integral part of the reinforcement belt, but can also be applied separately, for example by gluing, nailing, staples or the like, to the reinforcement belt.
  • support lamellas are assembled from the support lamella segments described above, the handling of these parts is also not inconsiderably simplified compared to conventional base slats, which normally extend in one piece over the entire distance from the ridge edge to the eaves edge and are therefore rather unwieldy. This is also positive in terms of occupational safety.
  • An additional design feature according to the invention provides that the reinforcement belt on its side facing the roof covering support arrangement is equipped with a predefined hole pattern for simplified positioning and attachment of support lamella fastening means.
  • This grid of holes which is advantageously already provided at the factory, can provide the fitter with the fastening points provided for a structurally advantageous fastening of the supporting slats and thus contributes to a high-quality roof construction, a reproducibility of the roof structure and to simplification and acceleration of the assembly work.
  • one or more holes of the hole pattern are made at a predetermined angle to the reinforcement belt level in the reinforcement belt of the support lamella and / or are provided with a predetermined cone angle on their side facing the roof covering support arrangement with a predetermined cone angle that extends essentially to the underside of the belt, this facilitates the attachment of the support lamella Fasteners on the sloping roof level in a structurally advantageous arrangement. This also has a positive effect on the achievable quality, strength and reproducibility of the roof structure.
  • the respectively predetermined angle or cone angle the holes can be adapted to the inclination of the roof for which the support slats are to be used.
  • the supporting lamellae are preferably connected to the rafters via mechanical fastening elements, the fastening elements absorbing the roof load of the roof parts lying above the insulation layer which is introduced via the supporting arrangement.
  • mechanical fastening elements can be, for example, nails and / or screws or combinations thereof and the like, which have proven to be particularly expedient, easy-to-use and inexpensive fastening means for the stated purpose.
  • the mechanical fastening elements serve both to fix the support slats to the roof structure and to take up and remove or introduce the roof loads into the rafters below. They therefore have a dual function.
  • the invention is not limited to these mechanical fastening elements, rather any fastening means suitable for the intended purpose can be used.
  • Another advantageous embodiment of the invention provides that the nails and / or screws are nailed or screwed to the rafters in a truss-like pattern through the supporting lamellae when the rafters are viewed from the side, these truss-like nailing or screwing for fastening the supporting lamellae and for receiving the roof load introduced via the support arrangement serves the roof parts lying above the insulation layer.
  • This design which can also absorb shear forces, enables a very stable and stable roof structure in a simple and effective manner.
  • other equivalent fastening means can also be used.
  • the supporting formwork of the roof structure according to the invention consists of a fire-retardant material and / or is provided with a fire-retardant coating at least on the side facing the space formed by the roof structure.
  • Pyroex® panels for example, can be used as fire-retardant material.
  • the supporting formwork essentially consists of a particle board, the binder of which comprises fire-retardant components.
  • the insulating material laid between the supporting lamellas on the vapor barrier is made of a mineral wool felt insulating material sheet provided in roll form with a diffusion-open lamination covering the mineral wool felt, the insulating material sheet exclusively projecting on one side edge and extending in the longitudinal direction of the web has collapsible overlap with adhesive strips on the insulation sheet.
  • this insulating material sheet allows the insulating material to be laid particularly easily and effectively between the supporting slats.
  • a suitable separating device such as a knife, is used to fill an insulating material strip transversely to the longitudinal direction of the web in the required width, that is to say in a width that is essentially the distance between the two adjacent ones Support slats corresponds, cut off and laid between the support slats.
  • the butt overlap of the separated strip points to the eaves side of the Roof, so that the ridge-side edge of the next lower lying strip overlaps like a scale from this joint overlap and can be connected to the previously laid strip by means of the adhesive strip.
  • the procedure is the same for the other strips of insulation until the area between two adjacent supporting slats is completely filled with insulation.
  • the number of insulation strips required for the insulation of the roof depends not only on the size of the roof area but also on the width of the insulation sheet used.
  • the lamination and / or the mineral wool felt of the insulation web is provided with a strip marking running transversely and / or perpendicular to the longitudinal direction of the web.
  • the marking lines can also be interrupted or arranged at irregular distances from one another.
  • the stripe marking is preferably only optically effective. In principle, however, incisions in the insulating material web can serve as markings and facilitate cutting.
  • the insulating layer laid between the supporting lamellas on the vapor barrier is formed from one or more strips which are excessively separated from the insulating material web transversely to the longitudinal direction of the web and which are formed by an oversize and the clamping effect based on the insulating material consistency is fixed between the support slats.
  • the stiffeners can be laid and fastened particularly easily and quickly between the support slats.
  • conventional insulation materials such as glass wool or the like the oversize required for the clamping effect is, for example, 10 mm.
  • Fig. 1 shows a schematic sectional side view of the roof structure according to the invention for a rafter roof covered with roofing tiles, that is roof tiles.
  • This roof structure covering an attic of a house essentially comprises a roof structure with a plurality of parallel spaced rafters 2 arranged in the roof fall line, a supporting formwork 4 arranged on the rafters 2, a foil-like vapor barrier 6 laid on the supporting formwork 4, and on the formwork 4 and the film-like vapor barrier 6 arranged directly above the rafters 2, essentially parallel to them, and in the fall line of the roof and connected to the rafters 2, elongated support slats 8 made of highly compressed mineral wool.
  • a supporting lamella 8, each associated with a single rafter 2, is composed of a plurality of supporting lamella segments 8 with a length l1 of 1200 mm lined up on the end for the purpose of easier handling during assembly.
  • these supporting lamella segments are referred to as supporting lamellae 8.
  • the Support slats 8 serve to accommodate the roof load of the roof parts lying above the support slats 8, which is introduced via a roof covering support arrangement.
  • a roof covering support arrangement here means the base slats 10 arranged on the support slats 8 and essentially parallel to them, and the attached slats 12 extending substantially parallel to the roof ridge and transversely to the base slats 10 and the support slats 8 which the roofing slabs, i.e. the roof tiles, are laid.
  • the roof tiles contributing to the roof load are not shown in FIG. 1 for the sake of a better overview.
  • the support lamellae 8 are connected to the rafters 2 by means of nails 14, the nails 14 being nailed to the rafters 2 in a framework-like pattern through the base slats 10 and the support lamellae 8.
  • nails 14 instead of nails, you can also use screws or special screws that anchor the basic battens exactly to the insulation thickness in the rafters.
  • the respective nail or screw angle is selected depending on the roof pitch and the strength properties to be achieved with the truss-like nailing.
  • Insulation strips 16 are laid on the vapor barrier 6 in the space between two adjacent support slats 8 which run parallel to one another, this space essentially corresponding to the space between two adjacent rafters 2. These insulation strips 16, which have a diffusion-open, weather-resistant and waterproof lamination on the weather side, that is to say the side facing the roof tiles, are connected directly or indirectly to the supporting slats 8. This will be discussed in more detail below.
  • the insulation layer formed from the insulation strips 16 and the support slats 8 covers the entire area insulating attic space 18.
  • the roof overhang, for which no insulation is required, is connected to the insulation layer by means of lugs 20 and a final eaves board 22 on the eaves side.
  • a supporting lamella 8 has an essentially perpendicular fiber arrangement F.
  • the support plate 8 according to FIG. 2 is composed of two plate plates 8A, 8B arranged vertically next to one another and connected to one another by means of an adhesive 24.
  • Correspondingly cut URSA® insulation panels made of highly compressed glass wool with a density of approximately 25 to 100 kg / m 3 are used here as lamella panels 8A, 8B.
  • the support plate 8 can also consist of a single plate. When using two or more lamella plates, they do not necessarily have to have the same physical properties.
  • the support slats 8 have on their side facing the roof tiles 26 a laminated, weather-resistant and waterproof reinforcement belt 8.2, which has the same width as the support slat 8 itself.
  • the reinforcement belt 8.2 is made from a fire-retardant Pyroex® chipboard (fire protection class B1, fire resistance F30). In general, however, any other suitable material can also be used.
  • the support lamella 8 illustrated in FIGS. 1 and 2 has a width b1 of approximately 100 mm and, including the reinforcing belt 8.2, a total height h1 of approximately 120 mm.
  • the reinforcement belt 8.2 of the support lamella 8 is already provided in the factory with a film or fleece-like weather-resistant and waterproof covering 8.4 on its upper side, that is to say the side facing the base battens 10, which covers the reinforcement belt 8.2 over the entire surface.
  • this covering will be referred to as belt film 8.4.
  • the belt film 8.4 comprises two overlaps 8.6 extending laterally beyond the side edges of the reinforcing belt 8.2 of the support plate 8 and essentially parallel to the longitudinal extension of the reinforcing belt 8.2 along its free side edge, each with an adhesive strip on the side facing the rafters 2 are equipped. Before being used, this adhesive strip is expediently protected by a release film or the like.
  • the insulation 16 laid between two laterally adjacent and parallel mutually parallel support slats 8 on the vapor barrier 6 has a one-sided, diffusion-open liner 16.2 that faces the weatherstrip, that is, the weather side.
  • the thickness of the insulating material 16 is chosen with 120 mm in the present case so that it corresponds to the height h1 of the support plate 8 including its reinforcement belt 8.2, so that the top of the insulation material 16 is flush with the top of the reinforcement belt 8.2 of the support plate 8.
  • the butt overlaps 8.6 of the belt film 8.4 are glued to the lamination 16.2 of the insulating material 16 with their adhesive strips and thus connect the insulating material 16 to the supporting lamella 8.
  • a base slat 10 which in turn carries the tile slats 12, is placed separately on the support plate 8.
  • a connection to the rafters 2 is established via the truss-like nailing 14 described above through the base batten 10 and the support lamella 8 manufactured.
  • the nailing is not visible in FIG. 2.
  • the support formwork 4 of the roof structure according to the invention made of chipboard or boards is provided with a fire-retardant coating 4.2 on its side facing the attic space 18 formed by the roof structure in the present application for fire protection reasons.
  • a fire-retardant Pyroex® board or a particle board the binder of which comprises fire-retardant components.
  • FIG. 3 shows a schematic enlargement of detail X in FIG. 1 in the area of the end joint of two support plates 8.
  • the reinforcing belts 8.2 of the support plates 8 which abut one another without space, each have their own in the direction of the longitudinal extension of the support plate 8 facing end face via corresponding coupling elements 28, 30, which facilitate precise joining of the support plates 8 during assembly.
  • these coupling elements are designed as a tongue and groove connection.
  • the belt film 8.4 of a respective support plate 8 is designed such that it extends beyond the end of the support plate 8 on the eaves side and forms a further overlap 8.8 that connects the belt film 8.4 to the support plate 8 lower-lying support lamella 8 overlapped like a scale.
  • the further joint overlap 8.8 is connected to the lower support lamella 8 by means of its adhesive strip.
  • a peel-off film provided to protect the adhesive strip of the further joint overlap 8.8 is expediently designed such that it can be removed independently of the peel-off films of the side joint overlaps 8.6 of the belt film 8.4 of the support plate 8.
  • FIG. 4 shows a schematic perspective view of an insulating material web R made of mineral wool felt used for the roof construction according to the invention, from which the insulating material strips 16, which are located between two laterally adjacent and mutually parallel support lamellae 8 and laid on the vapor barrier 6, are produced.
  • This insulating material web R which is provided in the form of a roll in the present case, has a one-sided, diffusion-open lamination 16.2 which, when rolled up, faces the inside of the roll.
  • the insulating material web R also has a stripe marking 16.4 attached to the lamination 16.2, which runs perpendicularly and transversely to the longitudinal direction of the web and is easy to recognize.
  • the individual marking lines 16.4 of the stripe marking of which only one is shown in FIG.
  • the strip marking 16.4 on the lamination 16.2 is particularly advantageous in the case of the arrangement of the lamination 16.2 described above within the rolled-up insulation web R, since the marking 16.4 then immediately lies in a position that is easy for a user to work on when the insulation web R is rolled out. It is also conceivable to place the mark 16.4 on the mineral wool felt.
  • the insulation sheet R has a side overlap 16.6 with adhesive strips that protrudes laterally, runs in the longitudinal direction of the sheet and can be folded onto the insulation sheet R.
  • This adhesive strip is also expediently protected by a peel-off film or the like before it is used.
  • an insulating material strip 16 is cut off transversely to the longitudinal direction of the web by means of a suitable separating device, for example a knife 32, the separated width b2 being the distance between two adjacent supporting slats 8 plus one Corresponds to excess of about 10 mm. Due to this oversize and the insulation consistency, the insulation strip 16 can then be fixed in a self-retaining manner between the support lamellae 8 by a simple clamping action.
  • the length of a cut insulation strip 16 results from the roll width Rb of the insulation sheet R.
  • the cut insulation strips 16 are preferably laid starting from the roof ridge towards the eaves.
  • the butt overlap 16.6 of the separated insulation strip 16 faces the eaves side of the roof, so that the ridge-side edge of the next lower-lying strip 16 overlaps like scales 16.6 from this butt overlap and can be connected to the previously laid insulation strip 16 by means of the adhesive strip.
  • the procedure is analogous for the further strips of insulation until the area between the two adjacent support slats 8 is completely filled with insulation. The same procedure is followed for the remaining roof sections.
  • Fig. 5 shows a schematic cross-sectional view of a second embodiment of a support plate 8 of the roof structure according to the invention.
  • This variant is essentially the same as that shown in FIGS. 1 and 2.
  • the support plate 8 is, however, formed from a single plate plate.
  • the reinforcement belt 8.2 is wider than the support plate 8 and projects beyond it with a lateral projection U, so that the support plate 8 assumes a cross-sectional shape that resembles a T-beam.
  • FIG. 6 shows a schematic cross-sectional illustration of a third embodiment of a supporting lamella 8 of the roof construction according to the invention.
  • the special feature of this embodiment variant which corresponds essentially to a combination of the embodiments according to FIGS. 2 and 5, is that the belt film 8.4 is arranged between the support plate 8 and its reinforcing belt 8.2.
  • Fig. 7 shows a schematic cross-sectional view of a fourth embodiment of a support plate 8 of the roof structure according to the invention.
  • the reinforcement belt 8.2 of the support lamella comprises on its side facing the roof covering support arrangement a base bar 10 which runs essentially parallel to the longitudinal extension of the support lamella 8.
  • This base bar 10 is an integral part of the reinforcement belt 8.2 itself in the present case. On the attachment of a separate base bar can therefore be dispensed with.
  • This supporting lamella 8 shows a fifth embodiment of a supporting lamella 8 of the roof construction according to the invention in a schematic cross-sectional illustration.
  • This supporting lamella 8 has a stiffening web 8.10 which extends between two lamella plates 8A, 8B and extends essentially over the entire height of the supporting lamella 8 and which increases the compressive strength and stiffness of the support plate 8 is used.
  • the stiffening web 8.10 is made to avoid a cold or thermal bridge from a material that has essentially the same insulation properties as that has highly compressed mineral wool material of the support plate 8 or 8A, 8B. Foamed or non-foamed plastic can be used here.
  • the stiffening web 8.10 can also consist of other materials, for example highly compressed mineral wool, preferably of higher density than the remaining mineral wool material of the support lamella 8, wood, in particular plywood or chipboard, paper, cardboard, plasterboard, metal and the like, and combinations thereof.
  • the stiffening web 8.10 is connected via suitable fastening means, such as an adhesive 24, to the lamella plates 8A, 8B of the support lamella 8, which are made of highly compressed mineral wool.
  • the stiffening web 8.10 also has lightening holes in the present case. These are identified in FIG. 8 with the reference number 8.12.
  • a plurality of stiffening webs for example two stiffening webs which sandwich the lamella plates 8A, 8B of the support lamella 8.
  • Fig. 9 shows a schematic perspective view of a sixth embodiment of a support plate 8 of the roof structure according to the invention.
  • the reinforcement belt 8.2 is on its side facing the roof covering support arrangement with a factory-provided hole pattern 34, 36 for simplified positioning and attachment of support lamella fastening means, for example the nails 14 and / or described in connection with FIGS. 1 and 2 Screws.
  • the hole pattern 34, 36 is covered by the belt film 8.4 already explained in detail, which is only partially shown in the drawing for the sake of a better overview.
  • FIG. 10 which shows a schematic sectional view along the line BB in FIG. 9
  • the hole pattern in the present case is formed from a plurality of through holes 34 or through holes with recesses 36 extending to the lower edge of the reinforcing belt at a predetermined angle ⁇ to the reinforcing belt plane E in the reinforcing belt 8.2.
  • These holes 34, 36 are clearly visible through the belt covering 8.4, and the belt covering 8.4 located above a hole 34, 36 can be easily pierced for attaching a fastening nail 14 or a screw.
  • Said depression 36 which has a predetermined cone angle ⁇ , can, as indicated in FIG. 10, be attached to the side of the reinforcing belt 8 facing and / or facing the roof covering support arrangement.
  • the respective angle of inclination ⁇ of the through holes 34 or the respective cone angle ⁇ of a countersink 36 is preferably matched to the roof pitch and the truss-like nailing and / or screwing pattern described in connection with FIG.
  • blind holes can also be used for the purposes of the invention. This solution is particularly recommended if there is no belt covering 8.4 covering the holes.
  • the blind holes not completely passing through the reinforcing belt 8.2 then ensure that the lamella material of the supporting lamella 8 lying under the reinforcing belt 8.2 is also well protected before assembly.
  • the hole pattern 34, 36 explained above is expediently matched to the shape of the support plate 8 and / or its reinforcing belt 8.2 used in each case.
  • the hole pattern according to the invention can have a regular and / or irregular hole pattern.
  • the invention is not restricted to the embodiment explained above, which merely represents a general illustrative example. Rather, the invention can deviate significantly from this embodiment within the scope of protection.
  • the invention is applicable not only to the rafters roof described above, but also to throat rafters roofs, purlin roofs, steel purlin roofs, mansard roofs, solid sloping roof constructions made of concrete and the like.
  • the height, width and length of the support plates or support plate segments can deviate from the dimensions mentioned above.
  • the supporting lamella can take other suitable cross-sectional shapes than those explained above. Instead of the nails or screws used in the exemplary embodiment according to FIG.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
EP97103028A 1996-03-15 1997-02-25 Dachkonstruktion Ceased EP0795659A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19610267 1996-03-15
DE19610267A DE19610267A1 (de) 1996-03-15 1996-03-15 Dachkonstruktion

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EP0795659A1 true EP0795659A1 (de) 1997-09-17

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DE (1) DE19610267A1 (xx)
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867572A2 (de) * 1997-03-27 1998-09-30 Deutsche Rockwool Mineralwoll-GmbH Mineralwolleprodukt
DE19903370A1 (de) * 1999-01-28 2000-08-03 Gruenzweig & Hartmann Markierungen an insbesondere Mineralwollprodukten
EP1094165A2 (de) * 1999-10-23 2001-04-25 Deutsche Rockwool Mineralwoll-GmbH Wärme- und/oder Schalldämmelement
EP1786987A2 (en) * 2004-09-10 2007-05-23 Johns Manville Methods of providing water protection to roof structures and roof structures formed by the same
DE19857817B4 (de) * 1998-12-15 2008-04-10 Ursa Deutschland Gmbh Dämmstoffbahn
WO2014195197A1 (en) * 2013-06-07 2014-12-11 Rockwool International A/S An insulating roof support assembly, a method of installing such roof support assembly and an insulating roof construction
CN108915163A (zh) * 2018-04-18 2018-11-30 北京利泰装饰工程有限公司 一种屋面保温系统结构

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Publication number Priority date Publication date Assignee Title
DE19927840A1 (de) * 1998-06-23 1999-12-30 Alois Palacky Dachkonstruktion
DE20209021U1 (de) * 2002-06-11 2003-01-09 Wittenbauer Rudolf Folie
DE102009022161A1 (de) * 2009-05-20 2010-12-09 Rensburg, Markus, Dipl.-Wirtsch.-Ing. Befestigungselement für Dachaufbauten, insbesondere Solaranlagen, Dachaufbauten mit einem derartigen Befestiger und Verfahren zum Verbinden eines Dachaufbaus mit einem Dach
DE102016125201A1 (de) * 2016-12-21 2018-06-21 Ludwig Hettich Holding Gmbh & Co. Kg System zum Fügen oder Armieren von Bauteilen

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867572A2 (de) * 1997-03-27 1998-09-30 Deutsche Rockwool Mineralwoll-GmbH Mineralwolleprodukt
EP0867572A3 (de) * 1997-03-27 1999-06-09 Deutsche Rockwool Mineralwoll-GmbH Mineralwolleprodukt
DE19857817B4 (de) * 1998-12-15 2008-04-10 Ursa Deutschland Gmbh Dämmstoffbahn
DE19903370A1 (de) * 1999-01-28 2000-08-03 Gruenzweig & Hartmann Markierungen an insbesondere Mineralwollprodukten
WO2000045000A1 (en) * 1999-01-28 2000-08-03 Saint-Gobain Isover Markings on mineral wool products
EP1094165A2 (de) * 1999-10-23 2001-04-25 Deutsche Rockwool Mineralwoll-GmbH Wärme- und/oder Schalldämmelement
EP1786987A2 (en) * 2004-09-10 2007-05-23 Johns Manville Methods of providing water protection to roof structures and roof structures formed by the same
EP1786987A4 (en) * 2004-09-10 2009-07-15 Johns Manville PROCESS FOR PROVIDING WATER PROTECTION FOR ROOF STRUCTURES AND ROOF STRUCTURES MANUFACTURED THEREOF
WO2014195197A1 (en) * 2013-06-07 2014-12-11 Rockwool International A/S An insulating roof support assembly, a method of installing such roof support assembly and an insulating roof construction
US9546480B2 (en) 2013-06-07 2017-01-17 Rockwool International A/S Insulating roof support assembly, a method of installing such roof support assembly and an insulating roof construction
EA035347B1 (ru) * 2013-06-07 2020-05-29 Роквул Интернэшнл А/С Устройство опоры изоляционной кровли, способ установки такого устройства опоры кровли и конструкция изоляционной кровли
CN108915163A (zh) * 2018-04-18 2018-11-30 北京利泰装饰工程有限公司 一种屋面保温系统结构

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DE19610267A1 (de) 1997-09-18
CZ62797A3 (en) 1997-09-17
SK34197A3 (en) 1997-11-05
PL318894A1 (en) 1997-09-29

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