EP3026163A1 - Thin insulation panel of mineral wool for roof structures and method of manufacturing the insulation panel - Google Patents

Thin insulation panel of mineral wool for roof structures and method of manufacturing the insulation panel Download PDF

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Publication number
EP3026163A1
EP3026163A1 EP15191445.4A EP15191445A EP3026163A1 EP 3026163 A1 EP3026163 A1 EP 3026163A1 EP 15191445 A EP15191445 A EP 15191445A EP 3026163 A1 EP3026163 A1 EP 3026163A1
Authority
EP
European Patent Office
Prior art keywords
sheet
mineral wool
core layer
thin insulation
insulation panel
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.)
Withdrawn
Application number
EP15191445.4A
Other languages
German (de)
French (fr)
Inventor
Kimmo Rantala
Mats Walli
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.)
Paroc Group Oy
Original Assignee
Paroc Group Oy
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 Paroc Group Oy filed Critical Paroc Group Oy
Publication of EP3026163A1 publication Critical patent/EP3026163A1/en
Withdrawn legal-status Critical Current

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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
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—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 heat only
    • E04B1/7608—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 heat only comprising a prefabricated insulating layer, disposed between two other layers or panels
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
    • 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
    • E04B1/76—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 heat only
    • E04B1/7654—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 heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • 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
    • E04B1/76—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 heat only
    • E04B1/7654—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 heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E04B1/7658—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 heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
    • 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
    • E04B1/76—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 heat only
    • E04B1/78—Heat insulating elements
    • E04B1/80—Heat insulating 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
    • E04B1/92—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
    • E04B1/943—Building elements specially adapted therefor elongated
    • E04B1/944—Building elements specially adapted therefor elongated covered with fire-proofing material
    • 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
    • E04B1/76—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 heat only
    • E04B2001/7683—Fibrous blankets or panels characterised by the orientation of the fibres

Definitions

  • the present invention relates to a thin insulation sheet of mineral wool for roof structures, said sheet comprising a core layer of mineral wool and a flexible skin provided on at least one side thereof.
  • the thin insulation sheet of the invention is characterized in that the core layer comprises a mineral wool sheet, which is produced by longitudinal compression and in which, during the longitudinal compression process, the fibers strive to orient themselves towards a plane defined by the sheet's major surfaces, said core layer being provided on either side with a flexible skin satisfying the fire class A1 of standard EN 13501-1, which is affixed to the core layer with the mineral wool sheet's own bonding agent prior to curing the mineral wool sheet.
  • the sandwich structure of the invention is considerably improved in terms of step-load bearing capacity as the top side skin takes up compression stress and the bottom side skin takes up tensile stress. This enables speedier installation as there is no need to watch one's steps on the roof as opposed to the use of traditional sheets.
  • the lighter structure makes it possible to carry several sheets at a time, thereby contributing to speedier installation work.
  • Fig. 1 shows a mineral wool sheet 1, wherein fibers 2 exist in planes co-directional with the sheet's major surfaces 3, 4, i.e. in substantially horizontal planes in a condition shown in the figure.
  • the sheet is swaged by pressing it from opposite ends with a force F, whereby the fibers 2 strive to orient themselves towards the sheet's major surfaces.
  • Fig. 2 shows, in a schematic view of principle, the orientation of fibers in a longitudinally compressed condition of the sheet. In reality, the orientation of fibers may be even considerably different from the condition shown in fig. 2 , but the objective is to bring the fibers to an orientation as upright as possible, i.e. towards the sheet's major surfaces.
  • the longitudinal compression is followed by placing on either side of the sheet a skin 5, 6 of e.g. fiberglass felt, which complies with the requirements of fire class A1 as set forth in standard EN 13501-1.
  • the skin is attached with mineral wool's own bonding agent, after which a resulting sheet 1', coated with a skin on both sides, is conveyed to a curing process, whereby the skin bonds firmly to the core layer of mineral wool.
  • the top side skin 5 works as a member taking up compression stresses and the bottom side skin 6 in turn works as a member taking up tensile stresses, e.g. when stepping on the sheet at the location of an opening site in the profiled metal.
  • a problem with traditional sheets has not only been the deficiencies of step-load bearing capacity but also the risk thereof to snap off when lifted or carried on the roof, because of the lower bending strength thereof.
  • the sheets have a better-than-before strength when being lifted and carried.
  • the sheet 1' has preferably a thickness of about 30 mm and the core-establishing mineral wool has a density most suitably within the range of about 120kg/m 3 -140 kg/m 3 .
  • the sheet 1' has preferably a length of 1800 mm and a width of 1200 mm. These dimensions are but examples of preferred values and the invention is by no means to be limited to just those.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Textile Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a thin insulation sheet of mineral wool for roof structures, as well as to a method of manufacturing the thin insulation sheet. The insulation sheet comprises a core layer of mineral wool and a flexible skin provided on at least one side thereof. The core layer comprises a mineral wool sheet (1'), which is produced by longitudinal compression and in which fibers (2), during the course of longitudinal compression, strive to orient themselves mainly towards a plane defined by the sheet's major surfaces (3, 4). The core layer is provided on either side thereof with a flexible skin (5, 6) satisfying the fire class A1 of standard EN 13501-1, which is affixed to the core layer with the mineral wool sheet's own bonding agent prior to curing the mineral wool sheet.

Description

  • The present invention relates to a thin insulation sheet of mineral wool for roof structures, said sheet comprising a core layer of mineral wool and a flexible skin provided on at least one side thereof.
  • One problem, particularly with sheets used in low-slope profiled metal roofs and functioning as a support for vapor barriers of mineral wool, is that the currently available sheets may crush when stepped on at an opening in the profiled metal. This entails repair measures and hinders installation work. In order to avoid crushing incidents, it is necessary to employ relatively dense and thick, and thereby heavy sheets which contribute to the hindering of installation work.
  • It is an objective of the present invention to provide an improved thin insulation sheet which has compression strength and bending strength properties considerably better than those of traditional sheets, thereby enabling structures thinner and lighter than before. In order to attain this objective, the thin insulation sheet of the invention is characterized in that the core layer comprises a mineral wool sheet, which is produced by longitudinal compression and in which, during the longitudinal compression process, the fibers strive to orient themselves towards a plane defined by the sheet's major surfaces, said core layer being provided on either side with a flexible skin satisfying the fire class A1 of standard EN 13501-1, which is affixed to the core layer with the mineral wool sheet's own bonding agent prior to curing the mineral wool sheet.
  • The sandwich structure of the invention is considerably improved in terms of step-load bearing capacity as the top side skin takes up compression stress and the bottom side skin takes up tensile stress. This enables speedier installation as there is no need to watch one's steps on the roof as opposed to the use of traditional sheets. In addition, the lighter structure makes it possible to carry several sheets at a time, thereby contributing to speedier installation work.
  • The invention will now be described more closely with reference to the accompanying drawing, in which:
    • fig. 1
    shows a thin insulation sheet of the invention in an initial condition, and
    fig. 2
    the sheet of fig. 1 in a schematic view of principle in a completed condition.
  • Fig. 1 shows a mineral wool sheet 1, wherein fibers 2 exist in planes co-directional with the sheet's major surfaces 3, 4, i.e. in substantially horizontal planes in a condition shown in the figure. The sheet is swaged by pressing it from opposite ends with a force F, whereby the fibers 2 strive to orient themselves towards the sheet's major surfaces. Fig. 2 shows, in a schematic view of principle, the orientation of fibers in a longitudinally compressed condition of the sheet. In reality, the orientation of fibers may be even considerably different from the condition shown in fig. 2, but the objective is to bring the fibers to an orientation as upright as possible, i.e. towards the sheet's major surfaces. The longitudinal compression is followed by placing on either side of the sheet a skin 5, 6 of e.g. fiberglass felt, which complies with the requirements of fire class A1 as set forth in standard EN 13501-1. The skin is attached with mineral wool's own bonding agent, after which a resulting sheet 1', coated with a skin on both sides, is conveyed to a curing process, whereby the skin bonds firmly to the core layer of mineral wool. The top side skin 5 works as a member taking up compression stresses and the bottom side skin 6 in turn works as a member taking up tensile stresses, e.g. when stepping on the sheet at the location of an opening site in the profiled metal. A problem with traditional sheets has not only been the deficiencies of step-load bearing capacity but also the risk thereof to snap off when lifted or carried on the roof, because of the lower bending strength thereof. By virtue of a sandwich structure of the invention, the sheets have a better-than-before strength when being lifted and carried.
  • The sheet 1' has preferably a thickness of about 30 mm and the core-establishing mineral wool has a density most suitably within the range of about 120kg/m3-140 kg/m3. The sheet 1' has preferably a length of 1800 mm and a width of 1200 mm. These dimensions are but examples of preferred values and the invention is by no means to be limited to just those.

Claims (4)

  1. A thin insulation sheet of mineral wool for roof structures, said sheet comprising a core layer of mineral wool and a flexible skin provided on at least one side thereof, characterized in that the core layer comprises a mineral wool sheet (1') produced by longitudinal compression wherein, during the course of longitudinal compression, fibers (2) are striving to orient themselves towards a plane defined by the sheet's major surfaces (3, 4), said core layer being provided on either side thereof with a flexible skin (5, 6) satisfying the fire class A1 of standard EN 13501-1, which is affixed to the core layer with the mineral wool sheet's own bonding agent prior to curing the mineral wool sheet.
  2. A thin insulation sheet according to claim 1, characterized in that the sheet (1') has a thickness of about 30 mm and a density of about 120kg/m3-140 kg/m3.
  3. A thin insulation sheet according to claim 1 or 2, characterized in that the skin (5, 6) consists of fiberglass felt.
  4. A method of manufacturing a thin insulation sheet of mineral wool for use in roof structures, said sheet comprising a core layer of mineral wool and a flexible skin provided on at least one side thereof, characterized in that the core layer is produced by longitudinally compression of a mineral wool sheet, in which fibers (2) exist in planes substantially co-directional with the sheet's major surfaces (3, 4), whereby, during the course of longitudinal compression, the fibers (2) strive to orient themselves towards a plane defined by the sheet's major surfaces (3, 4), on either side of said core layer of mineral wool being affixed, with the mineral wool sheet's own bonding agent, a flexible skin (5, 6) satisfying the fire class A1 of standard EN 13501-1, followed by conveying the mineral wool sheet to a curing process.
EP15191445.4A 2014-11-27 2015-10-26 Thin insulation panel of mineral wool for roof structures and method of manufacturing the insulation panel Withdrawn EP3026163A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20146038A FI126566B (en) 2014-11-27 2014-11-27 Thin insulating sheet of mineral wool for roof structures and method of making an insulating sheet

Publications (1)

Publication Number Publication Date
EP3026163A1 true EP3026163A1 (en) 2016-06-01

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Application Number Title Priority Date Filing Date
EP15191445.4A Withdrawn EP3026163A1 (en) 2014-11-27 2015-10-26 Thin insulation panel of mineral wool for roof structures and method of manufacturing the insulation panel

Country Status (2)

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EP (1) EP3026163A1 (en)
FI (1) FI126566B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922425A (en) * 1970-09-14 1975-11-25 Owens Corning Fiberglass Corp Roofing board for integration in a built-up roofing structure
US5981024A (en) * 1994-01-28 1999-11-09 Rockwool International A/S Insulating element and method and plant for producing and packaging
EP1559844A1 (en) * 2004-01-31 2005-08-03 Deutsche Rockwool Mineralwoll GmbH & Co. OHG Insulating element and composite thermal compound system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922425A (en) * 1970-09-14 1975-11-25 Owens Corning Fiberglass Corp Roofing board for integration in a built-up roofing structure
US5981024A (en) * 1994-01-28 1999-11-09 Rockwool International A/S Insulating element and method and plant for producing and packaging
EP1559844A1 (en) * 2004-01-31 2005-08-03 Deutsche Rockwool Mineralwoll GmbH & Co. OHG Insulating element and composite thermal compound system

Also Published As

Publication number Publication date
FI126566B (en) 2017-02-15
FI20146038A (en) 2016-05-28

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