EP3786381A1 - Brandschutz- und akustikbauplatte sowie brandschutz- und akustikbauplattensystem - Google Patents

Brandschutz- und akustikbauplatte sowie brandschutz- und akustikbauplattensystem Download PDF

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Publication number
EP3786381A1
EP3786381A1 EP20172684.1A EP20172684A EP3786381A1 EP 3786381 A1 EP3786381 A1 EP 3786381A1 EP 20172684 A EP20172684 A EP 20172684A EP 3786381 A1 EP3786381 A1 EP 3786381A1
Authority
EP
European Patent Office
Prior art keywords
panel
elongated
elements
building
fire retarding
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.)
Granted
Application number
EP20172684.1A
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English (en)
French (fr)
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EP3786381B1 (de
Inventor
Tage Vesterby
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.)
Vesterby Traeteknik AS
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Vesterby Traeteknik AS
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Application filed by Vesterby Traeteknik AS filed Critical Vesterby Traeteknik AS
Publication of EP3786381A1 publication Critical patent/EP3786381A1/de
Application granted granted Critical
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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
    • 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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • 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
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • 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
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/849—Groove or slot type openings

Definitions

  • the present invention relates to a fire retarding and acoustic building panel, and a fire retarding and acoustic building panel system.
  • the Fire retarding and acoustic building panel according to the present invention provides a building structure with approved fire retarding as well as sound absorbing properties, which is flexible, lightweight and can be adapted to various building construction surfaces.
  • EP 2335916 B1 discloses an acoustic panel, which is constructed as a laminate and comprises a plurality of openings in contact with an intermediate space comprising a sound absorbing material.
  • This acoustic panel is however premanufactured, time consuming to produce, and leaves the installation process with very limited degrees of variation, and further provides for limited fire protection.
  • the panel is mainly manufactured from wood, the panel is heavy and leaves a need for improvement of the overall fire retarding and sound absorbing properties.
  • the fire retarding and acoustic building panel which in the following description also will be referred to as "building panel", is in a preferred embodiment used in a retrofitting process, where fire retardant properties, also called flammability, and acoustic performance of a wall and/or ceiling need to be enhanced.
  • the second elongated panel part of the elongated panel elements may be arranged with any desired dimension, such that the building panel provides for a thicker dimension of the elongated insulation element.
  • the backing panel is preferably connected to the elongated panel elements via suitable fastening means, such as screws, nails, adhesives, etc., which arranges the insulation elements in a mechanical locked engagement between the elongated panel elements and the backing panel.
  • suitable fastening means such as screws, nails, adhesives, etc.
  • the density of the elongated insulation elements influences the sound absorbing properties, structural strength, weight, as well as the flammability of the overall panel.
  • a density being lower than the density of the first number of elongated panel elements and between 120-190 (kg/m3), it is possible to arrange a building panel significantly more lightweight than the known building panels comprising massive elements ranging higher densities, while at the same time giving the building panel excellent and improved sound absorbing properties.
  • the workability of the elongated insulation elements when assembling the building panels is sufficient compared to elements having lower densities with lower compression strengths, such as densities below 120 (kg/m3).
  • the density of the elongated insulation elements is between 150-180 (kg/m3), which surprisingly has shown resulting in the best compromise between the sound absorbing properties, structural strength, weight, as well as the flammability.
  • the first number of elongated panel elements and the second number of elongated insulation elements defining an average density, the density of the second number of elongated insulation elements being less than 50% of the average density.
  • the average density of the first number of elongated panel elements and the second number of elongated insulation elements can be calculated by the density of each panel type multiplied by each panel types percentage of the entire volume of the panels.
  • Both the first number of elongated panel elements and the second number of elongated insulation elements influence the above-mentioned properties of the overall building panel.
  • the overall structural strength of the building panel is important, which means that the first number of elongated panel elements, which supports the non-loadbearing elongated insulation elements needs to be arranged with sufficient structural strength, which results in the material of the first number of elongated panel elements having a higher density compared to the density of the elongated insulation elements.
  • the density of the second number of elongated insulation elements being less than 50% of the average density, the building panel has the best combination of sound absorbing properties, structural strength, weight, as well as the flammability.
  • the first number of elongated panel elements comprises a wooden material and the first number of elongated panel elements has a density between 500-800 (kg/m3), preferably 760-800 kg/m3.
  • the wooden material being plywood.
  • the elongated panel elements are in a preferred embodiment manufactured from plywood preferably a plywood which may be impregnated with a fire retardant substance. Such impregnation can be performed under both vacuum or pressure and in vacuum or pressure chambers, where the fire retardant substance is forced into the cell structure of the wooden material and not just coating the surface thereof. Hereby, the best results in withstanding fire and extremely high temperatures are achieved.
  • Other types of used wooden based materials may be Medium-density fiberboard (MDF) impregnated in the same fashion.
  • MDF Medium-density fiberboard
  • the second number of elongated insulation elements comprises compressed fiberglass, ceramic fibers, or stone wool having a density between 160-170 (kg/m3), and wherein the density of the second number of elongated insulation elements is between 20-50% such as between 23-46% of the average density and preferably 27-46% of said average density.
  • the elongated insulation elements are preferably manufactured from stone wool, and may be compressed stone wool, but may in an alternative be expanded polystyrene, fire retardant impregnated paper wool or perlite covered with a sound cloth.
  • the density of the elongated insulation elements should be below 50% of the average.
  • the backing panel when the building panel is mounted onto an existing building surface, arranges a distance between the building surface and the inner surface of the second number of elongated insulation elements, the distance being substantial equal to a thickness of the backing panel, hereby arranging a ventilating space between the building panel and the building surface.
  • the building panel In order to ensure sufficient moisture transport of the building wall the building panel is arranged with a ventilating space between the wall surface and the building panel, when the building panel is arranged on the wall.
  • the second number of elongated insulation elements comprises a fire retardant sound cloth on the outer surface.
  • the insulation elements are in a preferred embodiment covered sound cloth, which may be fire impregnated.
  • Flammability standards for sound cloths are a matter of preventing fires and saving lives. Unfortunately, there is no single international flammability standard and instead a range of different standards, regulations and test methods are in force internationally.
  • the fire retarding and acoustic building panels according to the present invention meet the international flammability standards and are submitted to a range of test methods which cover the most important international flammability standards, including: European EN 13501-1E, German DIN 4102 - B1, French M1 NF P 92-503-507, Austrian ONORM A3800-1 and B 3825, Italian Class Uno - UNI 9175 Class 1.IM, British BS 5852, and USA -CA TB 117-2013.
  • the type of sound cloth used may be one ordinarily known to the skilled person and may be impregnated with a fire retardant, such as the one produced under the trademark "Burnblock". Other types of flame retardant substances may be used. Further, as the sound cloth comes in a variety of colors, the visual appearance of the entire building panel can be changed accordingly.
  • the backing panel comprises a recess for engaging a fastening means such as a screw in said building surface
  • Arranging the backing panel with means for connection with the wall eliminates the necessity of fastening means such as nails or screws to be driven through the panel and into the wall surface.
  • a fire retarding and acoustic building panel system comprising a number of fire retarding and acoustic building panels.
  • the building panels in the above defined panel system comprise in a preferred embodiment four side edges, where a first edge comprises a projection, defined by part of the outermost arranged elongated insulation element, and the opposite side edge of the panels is arranged with a groove, defined by a spacing between the opposite and outer most arranged elongated panel element and the backing panel.
  • a first edge comprises a projection, defined by part of the outermost arranged elongated insulation element
  • the opposite side edge of the panels is arranged with a groove, defined by a spacing between the opposite and outer most arranged elongated panel element and the backing panel.
  • Fig. 1 is a perspective view of the fire retarding and acoustic building panel 10.
  • the building panel 10 is constructed from a number of elongated panel elements 12, preferably made from impregnated plywood (density between 500-800 kg/m3), and a number of insulation elements 14 fabricated from a fire retardant material, such as compressed stone wool having a density between 150-190 (kg/m3) for example 160 (kg/m3).
  • a fire retardant material such as compressed stone wool having a density between 150-190 (kg/m3) for example 160 (kg/m3).
  • the building panel comprises a number of T-shaped elongated panel elements 12 dimensioned such that the elongated panel elements 12 defines approx. 60% of the total volume of the panel elements 12 and the insulation elements 14, and the insulation elements 14 are dimensioned such that the volume of these defines approx. 40% of the above defined total volume.
  • the building panel with panel elements 12 having a plywood with a density of approx. 700 (kg/m3), arranges the panel elements 12 and insulation elements 14 with an average density of 484 (kg/m3) resulting in the density of the insulation elements being approx. 33% of the average density.
  • the elongated panel elements 12 and elongated insulation elements 14 are arranged in a parallel and overlapping relationship, and the elongated panel elements 12 are fastened to a backing panel 18 via suitable fastening means (not shown).
  • the building panel 10 comprises at least one elongated backing panel 18 arranged at the inner surface of the building panel 10, such that the longitudinal direction of the backing panel 18 is substantially perpendicular to the longitudinal direction of the elongated panel elements 12.
  • the backing panel 18 preferably comprises a number of recesses (not shown) suitable to engage with fastening means such as screws, driven into the wall. This leaves out the necessity for driving the fastening means through the building panel 10 and into the wall.
  • the building panel 10 may, however, be connected to a building construction, such as a wall or ceiling surface, by driving suitable fastening means such as screws, nails, bolts, glue or similar means known to the skilled person through the backing panel 18 and into the construction.
  • suitable fastening means such as screws, nails, bolts, glue or similar means known to the skilled person
  • the fastening means are in this situation preferably driven through the insulation elements and the backing panel 18, such that the fastening means do not penetrate the elongated panel elements 12.
  • each elongated insulation panel 14 comprises a layer of fire-retardant sound cloth 16, which covers the outer surface and each side surface of an insulation material 22.
  • the sound cloth 16 only covers the outer surface of the insulation panels 14.
  • the sound cloth 16 improves the fire retarding and acoustic performance of the building panel 10, and as the sound cloth 16 comes in a variety of colours, the visual impression of the building panel 10 may be arranged as desired.
  • the sound cloth 16 in the illustrated embodiment does not cover the inner surface of the elongated insulation elements 14.
  • the sound cloth 16 may in a further embodiment also cover the inner surface of the elongated insulation elements 14, or in an alternative embodiment also be arranged as a continuous sheet of sound cloth 16, which extends continuously between a plurality of elongated panel elements 12 and a plurality of elongated insulation elements 14.
  • the continuous sound cloth 16 provides a mechanical damping of vibrations between the elongated panel elements 12 and the backing panel 18.
  • Fig. 2 is a cross sectional view of a fire retarding building panel system.
  • the figure illustrates part of a building panel system comprising two building panels 10.
  • the sound cloth 16 described in relation to figure 1 is also understood to be applied to the building panels 10 illustrated in figure 2 .
  • Fig. 2 shows a first lower building panel 10 and a lower part of an upper similar building panel 10. It is clearly illustrated that a lower edge of the upper building panel 10 comprises a groove 26, which is defined by a spacing between the backing panel 18 and the lowermost elongated panel element 12.
  • the lower building panel comprises at an upper edge an insulation element projection 24 defined by part of an elongated insulation element 14.
  • the lower and upper building panels 10 are mated by joining the groove 26 and insulation element projection 24, hereby creating a continuous unbroken building panel surface.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
EP20172684.1A 2019-08-27 2020-05-04 Brandschutz- und akustikbauplatte sowie brandschutz- und akustikbauplattensystem Active EP3786381B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19193846.3A EP3786380A1 (de) 2019-08-27 2019-08-27 Brandschutz- und akustikbauplatte sowie brandschutz- und akustikbauplattensystem

Publications (2)

Publication Number Publication Date
EP3786381A1 true EP3786381A1 (de) 2021-03-03
EP3786381B1 EP3786381B1 (de) 2024-01-24

Family

ID=67777074

Family Applications (2)

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EP19193846.3A Withdrawn EP3786380A1 (de) 2019-08-27 2019-08-27 Brandschutz- und akustikbauplatte sowie brandschutz- und akustikbauplattensystem
EP20172684.1A Active EP3786381B1 (de) 2019-08-27 2020-05-04 Brandschutz- und akustikbauplatte sowie brandschutz- und akustikbauplattensystem

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EP19193846.3A Withdrawn EP3786380A1 (de) 2019-08-27 2019-08-27 Brandschutz- und akustikbauplatte sowie brandschutz- und akustikbauplattensystem

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4821841A (en) * 1987-06-16 1989-04-18 Bruce Woodward Sound absorbing structures
US4960184A (en) * 1989-11-09 1990-10-02 Bruce Woodward Sound absorbing structure
DE10122265A1 (de) * 2001-05-08 2002-11-14 Lignotrend Ag Holzbautafel
EP2335916B1 (de) 2009-12-15 2014-07-16 Lignotrend GmbH & Co. KG Holzbautafel für Decken oder Wände
EP3467230A1 (de) * 2017-10-06 2019-04-10 HILTI Aktiengesellschaft Baugruppe mit profilblech und brandschutz- und oder schallschutzelement sowie brandschutz- und /oder schallschutzelement zur bildung einer baugruppe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741946A1 (de) * 1977-09-17 1979-03-29 Promat Feuerwiderstandsfaehige unterdecke
FR2848232A1 (fr) * 2002-12-10 2004-06-11 Jean Luc Sandoz Structure antibruit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4821841A (en) * 1987-06-16 1989-04-18 Bruce Woodward Sound absorbing structures
US4960184A (en) * 1989-11-09 1990-10-02 Bruce Woodward Sound absorbing structure
DE10122265A1 (de) * 2001-05-08 2002-11-14 Lignotrend Ag Holzbautafel
EP2335916B1 (de) 2009-12-15 2014-07-16 Lignotrend GmbH & Co. KG Holzbautafel für Decken oder Wände
EP3467230A1 (de) * 2017-10-06 2019-04-10 HILTI Aktiengesellschaft Baugruppe mit profilblech und brandschutz- und oder schallschutzelement sowie brandschutz- und /oder schallschutzelement zur bildung einer baugruppe

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Publication number Publication date
EP3786381B1 (de) 2024-01-24
EP3786380A1 (de) 2021-03-03

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