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WO1992019452A1 - Panneau isolant - Google Patents

Panneau isolant Download PDF

Info

Publication number
WO1992019452A1
WO1992019452A1 PCT/FI1992/000119 FI9200119W WO9219452A1 WO 1992019452 A1 WO1992019452 A1 WO 1992019452A1 FI 9200119 W FI9200119 W FI 9200119W WO 9219452 A1 WO9219452 A1 WO 9219452A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulating
insulating board
fibres
covering
boards
Prior art date
Application number
PCT/FI1992/000119
Other languages
English (en)
Inventor
Marja Jakola
Original Assignee
Paroc Oy Ab
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 Oy Ab filed Critical Paroc Oy Ab
Publication of WO1992019452A1 publication Critical patent/WO1992019452A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Definitions

  • This invention concerns an insulating board which comprises an insulating layer, suitably of mineral fibres, which carries a windbarrier covering permeable to water vapour.
  • a good heat insula ⁇ tion system in buildings requires a vapour or moisture barrier between the heat insulation and the interior space in order to prevent moisture from penetrating from the interior space into the wall construction.
  • a vapour barrier it is possible for moisture to penetrate into wall and ceiling constructions, through cracks or seams in the vapour barrier, for example.
  • a satisfactory insulation system requires, in addition to a vapour barrier, a wind barrier on the exterior surface of the insulation layer in order to prevent air movements within the insulation material and thus an impairment of the insulating capacity of the material.
  • a flow of colder air into the construction can also lead to undesired condensation of any moisture in the wall.
  • it is of importance to ensure that any moisture in the construction can migrate out through the insulation material and further out through the wind barrier to be aired via the ventilated space between the exterior cladding of the building and the wind barrier.
  • a wind barrier e.g. a separately mounted board, e.g. a bituminous or gypsum board, or some type of a foil, for example paper, metal or plastic, or also foils glued to the surface of the insulating layer.
  • the separately mounted boards are rather unwieldy and heavy, and they have to be protected against moisture on the construction site.
  • a disadvantage of separate paper foils or paper coverings lies in their poor mechanical strength as well as their poor moisture resistance on the construction site.
  • a further disadvantage of metal and plastic foils is their low vapour permeability.
  • the separately mounted foils or sheets require an additional working step when mounted.
  • the foils are delivered in the form of long rolls which are difficult to handle on the construction site. In addition, it is difficult to make sufficiently well sealed seams and joints, especially when folding the foil around corners and around window and door openings.
  • the foil has to be fastened with staples to the building frame itself, which requires an additional working step, and often this has to be completed with the application of a protecting tape for the seams. Because of the aforemen- tioned difficulties it is virtually impossible to achieve a completely tightly sealed connection between the insula ⁇ ting material and the foil, and a loosely mounted foil gives rise to an undesirable increase of the air movements in the insulation board and thus reduces its insulating capacity.
  • a covering which is both permeable to water vapour and simultaneously functions as a wind barrier is known e.g. from the Fl-patent publication 70 286, which describes the use of a glass wool web as a lining on e.g. a mineral wool mat, which in turn is coated with a surface layer of, for example, a latex paint.
  • This board has a number of disadvantages both as regards mechanical strength and as regards resistance to moisture. Its technical properties during manufacture are not satisfactory either.
  • the mat provided with a glass wool web and paint requires production in two stages: a first stage wherein the glass wool web is applied to and fastened to the mineral wool, which takes place by using an excess of a binder and curing in a curing oven, and a subsequent painting stage.
  • a board coated in this manner is also subject to moisture attack in that it easily absorbs water e.g. on unprotected building sites. In addition, its mechanical strength is reduced.
  • possible joints in the mounted structu ⁇ re have to be filled with a separately applicable sealing compound, which is not advantageous as regards construction techniques.
  • an insulation board which is optimal from the point of view of both production and construction techniques and which, on an insulating layer, carries a wind barrier covering which is permeable to water. vapour, can be obtained when the covering on the insulating board is comprised of heat- bonded HD-polyethylene fibres.
  • Heat-bonded HD-polyethylene fibres are commercially available.
  • One example of such products are the sheets or foils which are marketed under the brand name Tyvek, e.g. Tyvek ® L-1056 B (DuPont) .
  • Tyvek e.g. Tyvek ® L-1056 B
  • these products also exhibit a suitable wind barrier capacity (air permeability 9.6 x 10 "6 m 3 /m 2 .s.Pa) and a permeability to water vapour (water vapour resistance 0.18 x 10 9 m 2 .s.Pa/kg) .
  • Their fire rating is 1/1.
  • the insulating board according to the invention is manufac ⁇ tured by applying the wind barrier covering in a suitable manner to the surface of the insulating layer. Suitably this takes place by gluing a sheet or a web of the said heat-bonded HD-polyethylene fibres onto the surface of the insulating layer.
  • the adhesive used should, on the one hand, be compatible with both the material in the insula- ting board and with the HD-polyethylene fibres and may not negatively affect the desired characteristics of the end product, in particular it may affect neither the water vapour permeability nor the wind barrier characteristics of the HD-polyethylene fibres.
  • the coating In view of the fire properties of the board, its adhesive properties should be good enough in order to provide for a good connection between insula ⁇ ting layer and fibres without the use of an excess of adhesive. Due to the melting properties of the HD-polyethy ⁇ lene fibres, the coating cannot take place in the curing oven connected to the production line using, as the adhesive, the binder present in the insulating layer itself, but the coating should preferably take place at a temperature of below approximately 90 °C.
  • an adhesive based on an ethyl-vinyl-acetate-copoly er fulfills the afore mentioned requirements.
  • the fibre covering is applied to the mineral wool by applying the said adhesive, while heating to e.g. 70 to 80 °C, in an apparatus suitable for the said purpose, e.g. by using a heated roll, or infrared irradiation, onto the surface of the insulating layer or onto the fibre sheet, or onto both, whereafter the laminated product is subjected to compressi- on while simultaneously cooling, whereby the adhesive solidifies and binds.
  • the invention thus makes it possible to manufacture a coated board in a single step, contrary to the manufacture of e.g. a board coated with a glass fibre web, which requires an additional painting step.
  • the insulating board according to the invention exhibits a number of advantageous properties compared to the prior known insulating boards.
  • the board has, due to the applied HD-polyethylene fibres, considerably better mechanical strength than e.g. the prior known boards coated with a glass fibre web, paper or conventional plastic, which is of an advantage both during transport and storage, but naturally also on the construction site itself.
  • the board is completely water repellant, contrary to both the paper and the glass fibre web covering, which results in that the boards do not absorb water at all in the event of possible exposure during the construction stage.
  • Another important construction technical advantage is that the joints between the boards can simply be covered with self-adhesive tape, which adheres well to the surface of the HD-polyethylene fibres or the fibre sheet, wherefore the sealing compound used in connection with the prior used insulating boards, especially those coated with a glass fibre web, can be eliminated. Tape adheres poorly and for longer times not at all to a glass fibre mat. It is estimated that the heat insulating capacity of an insulati ⁇ on which is not sealed at the joints, is up to 10 % less than of one the joints of which have been sealed.
  • the edge surfaces of the insulating boards can be provided with tongues and grooves in order to provide for a good connec ⁇ tion between the boards and to further improve the sealing effect at the joints.
  • the invention thus concerns also a method for insulating outer walls in buildings with insulating boards, which is characterized in that the exterior side of the insulating boards carry a wind barrier layer of heat-bonded HD- polyethylene fibres and that the joints between the boards are covered with self-adhesive tape.
  • the insulating board is on the surface facing the interior space provided with a glass fibre web in a manner per se known, in order to improve the handling properties, e.g. the dust formation of the board.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Building Environments (AREA)

Abstract

L'invention se rapporte à un panneau isolant, de préférence composé de fibres isolantes, qui est recouvert par une couche d'arrêt pour le vent, laquelle est perméable à la vapeur d'eau. L'invention est caractérisée par le fait que la couche d'arrêt pour le vent est composée de fibres de polyéthylène-HD collées. L'invention se rapporte aussi à un procédé de fabrication dudit panneau et à son utilisation pour l'isolation des immeubles.
PCT/FI1992/000119 1991-04-26 1992-04-22 Panneau isolant WO1992019452A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI912045A FI912045A0 (fi) 1991-04-26 1991-04-26 Isolerskiva.
FI912045 1991-04-26

Publications (1)

Publication Number Publication Date
WO1992019452A1 true WO1992019452A1 (fr) 1992-11-12

Family

ID=8532400

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1992/000119 WO1992019452A1 (fr) 1991-04-26 1992-04-22 Panneau isolant

Country Status (2)

Country Link
FI (1) FI912045A0 (fr)
WO (1) WO1992019452A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009098360A1 (fr) * 2008-02-07 2009-08-13 Paroc Oy Ab Elément en laine minérale et procédé de fabrication et d’installation associé

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922028A1 (de) * 1989-07-05 1991-01-10 Corovin Gmbh Wasserdampfdurchlaessiges und wasserdichtes material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922028A1 (de) * 1989-07-05 1991-01-10 Corovin Gmbh Wasserdampfdurchlaessiges und wasserdichtes material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009098360A1 (fr) * 2008-02-07 2009-08-13 Paroc Oy Ab Elément en laine minérale et procédé de fabrication et d’installation associé

Also Published As

Publication number Publication date
FI912045A0 (fi) 1991-04-26

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