EP0279919B1 - Sous-toiture à isolation phonique - Google Patents

Sous-toiture à isolation phonique Download PDF

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Publication number
EP0279919B1
EP0279919B1 EP87117504A EP87117504A EP0279919B1 EP 0279919 B1 EP0279919 B1 EP 0279919B1 EP 87117504 A EP87117504 A EP 87117504A EP 87117504 A EP87117504 A EP 87117504A EP 0279919 B1 EP0279919 B1 EP 0279919B1
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EP
European Patent Office
Prior art keywords
wave
roof
roofing
thermal insulation
plates
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.)
Expired - Lifetime
Application number
EP87117504A
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German (de)
English (en)
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EP0279919A1 (fr
Inventor
Manfred Helfrecht
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Individual
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Individual
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Priority to AT87117504T priority Critical patent/ATE57734T1/de
Publication of EP0279919A1 publication Critical patent/EP0279919A1/fr
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/20—Roofs consisting of self-supporting slabs, e.g. able to be loaded
    • E04B7/22—Roofs consisting of self-supporting slabs, e.g. able to be loaded the slabs having insulating properties, e.g. laminated with layers of insulating material
    • E04B7/225—Roofs consisting of self-supporting slabs, e.g. able to be loaded the slabs having insulating properties, e.g. laminated with layers of insulating material the slabs having non-structural supports for roofing materials

Definitions

  • the invention relates to a sub-roof for roofs covered with roofing tiles according to the preamble of claim 1.
  • a sub-roof is known from a heat-insulating covering, in which approximately the thickness of the roof batten thermal insulation boards are laid in film trays between roof battens.
  • the angled, overlapping edge strips of the film shell have a waffle-like design, on the one hand to prevent the roof covering slabs from resting hard on the roof battens and to counteract the risk of breakage in the event of hail and on the other hand to provide ventilation.
  • the insulation panels also provide sound insulation due to the materials used for the insulation panels.
  • the quality of the soundproofing falls far short of expectations and that cracking noises also occur, which are obviously triggered by the thermal movement of the elements of the sub-roof.
  • the areas where the sub-roof rests on the roof battens have proven to be areas that are particularly responsible for sound transmission and in which the cracking noises are triggered. The main sound transmission obviously takes place in these support areas on the roof battens.
  • the invention has for its object to provide a sub-roof of the type mentioned in such a way that the highest possible sound insulation in the overlap area above the roof battens with simultaneous ventilation of the underside support areas of the roofing panels can be achieved and crackling noises are suppressed.
  • This wave structure of the covering strips supported on the roof battens or the edge strips of the film shell which cross over the roof battens obviously create sufficiently large cavities which act like cavity resonators and cause a phase rotation for the sound waves, so that by superimposing sound waves of opposite phases at least one Sound cancellation is achieved.
  • the cavities promote the evaporation of moisture, which can arise from condensation.
  • the wavelength of the waves assigned to the top sides of the roof batten is greater than the wavelength of the waves assigned to the end faces of the roof batten, cavities of different sizes result which have different effects on the phase rotation and thus have a favorable effect on sound cancellation.
  • the formation of cavities of different sizes is also favored by the fact that in practice the wave crests do not lie evenly in line and that adjacent trough areas are spatially connected to one another, which further favors the creation of resonance cavities of different volumes and also serves to better remove condensate.
  • the wave structure makes the edge strips of the film shell, which is inherently very rigid, more flexible, which also proves to be advantageous for suppressing the transmission of structure-borne noise.
  • the surface area between the eaves-side edge and hanging groove for the roofing panels is also provided with a wave structure, the wave crests and valleys perpendicular to the longitudinal direction of the roof battens run.
  • This wave structure mainly serves to suppress cracking noises due to the inevitable movement of heat.
  • the edge between the contact surface for the top edges of the roof covering panels and the hanging groove is designed to be continuous and slightly raised. This shape ensures a continuous support of the top edge of the roof covering panels, this edge being sufficiently narrow to compensate for thermal movement between the roof covering panel and the thermal insulation panel in the area of inherent elasticity. This has the same effect as the line contact of the wave crests, because due to the small contact surface and the comparatively low contact pressure, no friction inhibition during thermal movement can build up, which is compensated for by sudden movement.
  • wave structures in the form of sinusoidal waves or triangular and / or pulse-shaped waves have hardly any different effects.
  • the wave structure is also possible to design the wave structure as a rectangular wave, in particular in the area of the contact surface of the head-side edges of the roof covering plates between the hanging groove and the eaves-side end edge of the thermal insulation boards.
  • These rectangular waves or pulsed waves if the elevations are narrower than the depressions, provide evenly distributed support strips for the roofing tiles, which ensure that the unsupported areas do not become too large.
  • the interlocking wave structure of the thermal insulation panel and the foil trough is adapted to one another in such a way that different waveforms interlock loosely at the same wavelength.
  • the wave structure has at least a part of wave crests that are narrower than the wave troughs.
  • knobs and webs can also be provided. Incisions in the webs and the wave structure have an advantageous influence on both the resonance behavior and the evaporation of moisture.
  • a horizontal butt joint between two thermal insulation boards 10 is shown in a sectional perspective view above a roof batten 12 arranged on a rafter 11.
  • the eaves-side thermal insulation panel 10 engages over the roof batten 12 with a support strip 14 on the ridge side 12.
  • a cover strip 16 of the ridge-side thermal insulation panel 10 engages over the support strip 14, a step-shaped cutout 17 adjoining the cover strip 16 on the underside of the thermal insulation panel likewise engaging over the roof batten on the ridge side .
  • a hanging groove 20 for roof covering panels is provided on the top side, which is provided with a corrugated structure 21 on its eaves-side wall.
  • This wave structure is triangular in the illustration with wave crests and wave troughs running vertically over the side wall.
  • a contact surface for the top edges of the roofing panels which is also provided with a corrugated structure 22.
  • this corrugated structure is also triangular, but with a longer wavelength than the corrugated structure 21.
  • the individual corrugated lines run from the hanging groove 20 to the edge of the thermal insulation board on the eaves side.
  • a narrow support edge 23 is formed, on which the roof covering plate rests over the entire width at the head end.
  • the support is essentially to be evaluated as a linear support, which is sufficiently flexible to prevent sudden friction and thus cracking noises when the heat is moved between the two parts.
  • the wave structure 22 can also be designed in such a way that the individual wave trains do not run parallel to one another, but wedge-shaped toward one another, in that the wavelength continuously decreases from the hanging groove to the edge of the thermal insulation board on the eaves side. It is provided that the wave trains run obliquely from both sides towards the center of the element.
  • this configuration of the support area for the head-side edge of the roof covering panels also has the effect of ventilation on the underside for the roof covering panel
  • the purpose of this configuration is to create cavities which are in volume by the roof covering panel resting on the support edge and the wave crests be determined and are open to the eaves-side end of the thermal insulation panel. These cavities have a sound-absorbing and sound-suppressing effect and counteract crackling noises.
  • the wave trains lie essentially linearly on the roof batten with the wave crest, whereby due to the spatial structure of the roof batten, the cavities formed between the individual wave trains are irregularly connected to one another and this can result in acoustic resonance spaces that have different phase behavior, which obviously results from phase overlap Sound cancellation leads.
  • This provision of the corrugated structure in the support area on the roof batten also has the advantage that the known cracking noises can be avoided during a thermal movement.
  • FIG. 2 An embodiment of the invention is shown in FIG. 2, which differs only in the design of the wave structure and the laying of the thermal insulation boards 10 in film shells 60.
  • the corrugated structure 121 on the eaves-side wall of the hanging groove 20 has a sinusoidal shape and merges into a corrugated structure 122 in the area of the support surface for the head-side edge of the roofing plate, which is also sinusoidal.
  • the individual wave trains of this wave structure 122 run transversely to the thermal insulation board, i.e. in the direction of the hook-in groove 10.
  • On the underside of the support strip 14, a sinusoidal wave structure 130 is also formed, which merges into a corresponding sinusoidal wave structure 132 on the underside of the overlap strip 16.
  • the wave structure on the side walls of the cutout receiving the batten 12 is triangular.
  • the film shells 60 are constructed in a conventional manner, but a corrugated structure that corresponds to the corrugated structure on the thermal insulation panel is also embossed in the edges assigned to the side walls of the cutout for the roof batten. However, as will be described later in FIG. 9, a different waveform can be used.
  • the ridge-side edge strip 61 which extends over the roof batten 12 and the eave-side edge strip 62 of the film shell 60 are also shaped in a wave shape and the shape of the wave structure 130 and 132 on the underside of the thermal insulation boards is adapted in the cutout for the roof batten.
  • the measures described with reference to FIG. 9 can also be used here, which also have an advantageous effect because of the different shrinkage values between the material used for the film tray 60 and the material used for the thermal insulation panel 10.
  • edge strip 261 and 262 on the ridge side and eaves side on the film trough 60 is particularly clearly shown in FIG. 3, which shows an embodiment in which thermal insulation boards 110 are used which only engage between the roof battens and do not cover them.
  • These edge strips 261 and 262 have a sinusoidal wave structure 122, the wave trains running in the longitudinal direction of the roof batten 12.
  • the wave structure 221 on the eaves-side edge of the film shell 60 consists of adjoining half waves, the wave trains running perpendicular to the direction of the roof battens.
  • a step-shaped cutout 220 is made, which receives the lugs of the suspended roof covering panels.
  • the edge strips 261 and 262 lie on the one hand along the upper edge of the wave trains on the roof batten 12 and on the other hand with the wave structure 122 on the underside of the roof covering plate. This creates the desired cavities, which is desirable for sound suppression and ventilation.
  • the wave structures of the edge strips 261 and 262 are designed differently, so that they mesh with one another and form additional cavities, as in the embodiment explained in FIG.
  • FIG. 4 and FIG. 6 show triangular wave structures 22 for the bearing surface of the roof covering panels, whereas FIG. 5 shows a sinusoidal wave structure 122.
  • FIG. 4 and FIG. 6 show triangular wave structures 22 for the bearing surface of the roof covering panels, whereas FIG. 5 shows a sinusoidal wave structure 122.
  • the triangular wave structure merges over the support edge 23 into a wave-shaped structure 121, the wave crests of the wave structure 22 ending approximately in the plane of the surface of the support edge 23, so that the respective one covered by the overlying roof covering plate for the acoustic effect of the effective space after the contact edge is as complete as possible.
  • the sine-like wave structure 122 merges into the sine-like wave structure 121.
  • the wavelength of the wave structure of the edge strip and the side wall of the hook-in groove are shown with the same wavelength, it is expedient, as already mentioned, to provide a different wavelength for the two wave structures.
  • FIG. 7 and 8 show a special configuration of the corrugated structure in the region of the hanging groove and the support surface for the roof covering panels, a rectangular corrugated structure 322 being used.
  • the roof surfaces of the wave crests can be made slightly spherical in order to reduce the contact surface with the roof covering plate.
  • the rectangular wave trains have an increasing amplitude from the eaves-side edge to the hook-in groove 320 of the thermal insulation board 310, which decreases considerably shortly before the hook-in groove 320, so that an edge-like elevation is created which serves as a closure for the wave troughs.
  • the wave crests are continued as a flat elevation around the support edge into the side wall of the hook-in groove 320, as can be seen in FIG. 8.
  • the rectangular wave trains are shown with a constant wavelength, it is also provided to design the wave structure in such a way that it has a wavelength decreasing from the hanging groove 321 to the eaves-side end of the thermal insulation panel.
  • This creates oblique wave trains it being provided that a wave train running perpendicular to the hanging groove runs in the central region of the element and the other wave trains are formed obliquely against this central region from both sides.
  • the wave troughs are open towards the eaves-side end, so that the cavities formed after the roof covering tiles have been placed on them can act like resonance cavities, which offer different phase conditions for the sound waves, particularly in the case of the oblique wave trains, so that sound suppression is possible through phase superimposition.
  • the inlet slot on the eaves side of the thermal insulation panel is approximately 1 mm high and, according to the corrugated structure, between 6 and 15 mm wide.
  • the amplitude of the square wave can increase from a size of 1 mm in the area of the inlet slot to the contact edge 323 to 5 to 8 mm, and then decrease to 1 mm in the area of the contact edge. With this amplitude, the wave train also runs into the suspension groove 320.
  • FIG. 7 also shows the step-shaped cutout 317, in which a roof batten, not shown, engages.
  • a roof batten not shown
  • both the wave structure assigned to the support strip and the wave structure assigned to the side wall of the cutout are designed as a rectangular wave, but the front and rear flanks are not very steep. This results in a trapezoidal course.
  • the thermal insulation board 310 can also be laid in film trays.
  • An embodiment as described with reference to FIG. 9 is particularly advantageous.
  • Fig. 9 a portion of the side wall of the cutout is provided, in which the roof panel is inserted and which is designated in Fig. 7 with 317.
  • the side wall has a trapezoidal wave structure 318, whereas an impulse-shaped wave structure 319 is assigned to the side wall of the film shell which is assigned to this wall surface, the individual pulses representing sinusoidal increases, the pulse width of which is substantially narrower than half the wavelength of the trapezoidal wave structure 318.
  • the measures of the invention result in a substantially improved sound insulation in the area around the roof batten which is critical for sound transmission, with the side effect being better ventilation of the top edges of the roof covering panels and the roof batten.
  • FIGS. 10 to 14 show further configurations of the surface between the edge on the eaves side and the hook-in groove 20, in addition to wave structures 422 according to FIGS. 10 and 13 also knobs 420 according to FIG. 14 and webs 421 or lattice web 423 according to FIGS. 11 and 12 are shown.
  • the wave structures 422 are provided with incisions 425, which can also be made in the webs and lattice webs, although this is not shown.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Catching Or Destruction (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Claims (12)

1. Sous-toiture pour toits couverts de plaques de couverture, consistant en plaques d'isolation thermique qui sont posées sur des coques en film préformées de forme stable qui s'engagent entre les lattes de toiture, dont les bandes de bordure courbées s'étendent parallèlement aux lattes de toiture en reposant sur ces dernières et formant un appui pour les bandes de chevauchement se superposant côté faîte et côté gouttière lorsqu'on utilise des plaques d'isolation thermique épaisses ou un appui pour les bords en tête des plaques de recouvrement de toiture lorsqu'on utilise des plaques d'isolation thermiques minces, caractérisée en ce que les bandes de chevauchement et d'appui (16, 14) ou surfaces frontales (17) qui s'appuient sur et/ ou contre la latte de toit (12) de deux plaques d'isolation thermique voisines (10) et/ou les bandes de bordure (61, 62) de la coque en film (60) s'engageant par dessus la latte de toiture (12), sont de forme ondulée, que les ondulations associées à la face supérieure de la latte de toiture (12) s'étendent dans le sens longitudinal par rapport à la latte de toiture et que les ondulations associées à la face frontale de la latte de toiture (12) s'étendent en direction transversale par rapport à la latte de toiture (12).
2. Sous-toiture selon la revendication 1, caractérisée en ce que la longueur de l'ondulation de la structure ondulée (30) associée à la face supérieure de la latte de toiture est supérieure à la longueur de l'ondulation de la structure ondulée (32) associée à la face frontale de la latte de toiture.
3. Sous-toiture selon les revendications 1 ou 2, caractérisée en ce que seule la bande de bordure (62) côté gouttière de la coque en film (60) est pourvue d'une structure ondulée.
4. Sous-toiture selon l'une des revendications 1 à 3, caractérisée en ce que lorsque des plaques d'isolation thermique (10) épaisses sont utilisées, elles s'appuient sur les lattes de toiture (12) par des bandes de chevauchement et d'appui (16, 14) et que la zone de surface entre le bord côté gouttière et la rainure d'accrochage (20) pour la plaque de recouvrement est également pourvue d'une structure interrompue.
5. Sous-toiture selon la revendication 4, caractérisée en ce qu'un bord d'appui (23) entre la surface d'appui pour les bords en tête des plaques de couverture et la rainure d'accrochage (20) est formé de manière traversante, plane et légèrement surélevée.
6. Sous-toiture selon l'une ou plusieurs des revendications 1 à 5, caractérisée en ce que la structure consiste en une ondulation sinusoïdale, triangulaire et/ou à la manière d'impulsions.
7. Sous-toiture selon les revendications 4 à 6 caractérisée en ce que les crêtes d'ondulation dans la zone de la surface d'appui pour les bords en tête des plaques de couverture sont formées en s'étiolant dans la rainure d'accrochage, que l'amplitude de la structure ondulée dans la zone de la surface d'appui en direction du bord côté gouttière devient de plus en plus grande vers la rainure d'accrochage (320) et que l'amplitude, du moins dans la zone de transition vers la rainure d'accrochage, est réduite en formant un bord d'accrochage (323) à une valeur minimale d'environ 1 mm ou plus.
8. Sous-toiture selon l'une ou plusieurs des revendications 1 à 7, caractérisée en ce que les structures ondulées (318, 319) de la plaque d'isolation thermique et de la coque en film qui s'emboîtent sont adaptées au point que, lorsque la longueur d'ondulation est identique et que la forme d'ondulation est différente, elles s'emboîtent librement en laissant des espaces libres entre deux.
9. Sous-toiture selon l'une de revendications 1 à 3, caractérisée en ce que la zone de la surface entre le bord côté gouttière et la rainure d'accrochage (20) est pourvue de boutons (420), de barrettes, ou de barrettes de grillage (421, 423).
10. Sous-toiture selon une ou plusieurs des revendications 1 à 9, caractérisée en ce que les structures ondulées (22) pour les barrettes (421) sont pourvues d'encoches (425).
11. Sous-toiture selon la revendication 10, caractérisée en ce que les structures ondulées ainsi que les barrettes ou barrettes de grillage s'étendent perpendiculairement et/ou horizontalement et/ou obliquement par rapport à la latte de toiture.
EP87117504A 1987-02-02 1987-11-26 Sous-toiture à isolation phonique Expired - Lifetime EP0279919B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87117504T ATE57734T1 (de) 1987-02-02 1987-11-26 Unterdach.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3703013 1987-02-02
DE19873703013 DE3703013A1 (de) 1987-02-02 1987-02-02 Unterdach mit verbesserter schalldaemmung

Publications (2)

Publication Number Publication Date
EP0279919A1 EP0279919A1 (fr) 1988-08-31
EP0279919B1 true EP0279919B1 (fr) 1990-10-24

Family

ID=6320032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117504A Expired - Lifetime EP0279919B1 (fr) 1987-02-02 1987-11-26 Sous-toiture à isolation phonique

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EP (1) EP0279919B1 (fr)
AT (1) ATE57734T1 (fr)
DE (2) DE3703013A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2189656B1 (es) * 2001-07-23 2004-10-16 Ind. Transformadoras Del Cemento Eternit, S.A. Modulo de tejado.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2842778C2 (de) * 1978-09-30 1982-12-23 Isopor Kunststoff Gmbh, 6908 Wiesloch Wärmedämmplatte aus Hartschaumkunststoff
FR2508518A1 (fr) * 1981-06-29 1982-12-31 Hue Bernard Module isolant thermique support de tuiles a largeur variable
DE3232048C2 (de) * 1982-08-28 1985-07-25 Helfrecht, Manfred, 8598 Waldershof Unterdach

Also Published As

Publication number Publication date
ATE57734T1 (de) 1990-11-15
DE3765774D1 (de) 1990-11-29
EP0279919A1 (fr) 1988-08-31
DE3703013A1 (de) 1988-08-11
DE3703013C2 (fr) 1991-02-07

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