EP1721051A1 - Joint souple - Google Patents

Joint souple

Info

Publication number
EP1721051A1
EP1721051A1 EP05701914A EP05701914A EP1721051A1 EP 1721051 A1 EP1721051 A1 EP 1721051A1 EP 05701914 A EP05701914 A EP 05701914A EP 05701914 A EP05701914 A EP 05701914A EP 1721051 A1 EP1721051 A1 EP 1721051A1
Authority
EP
European Patent Office
Prior art keywords
seal
intumescent
elongate
sheet
passageways
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Withdrawn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
EP05701914A
Other languages
German (de)
English (en)
Inventor
Derek Alfred Ward
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.)
Environmental Seals Ltd
Original Assignee
Environmental Seals Ltd
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 Environmental Seals Ltd filed Critical Environmental Seals Ltd
Publication of EP1721051A1 publication Critical patent/EP1721051A1/fr
Withdrawn legal-status Critical Current

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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • 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
    • B32B3/10—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 discontinuous layer, i.e. formed of separate pieces of material
    • 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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/02—Layered products comprising a layer of paper or cardboard next to 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
    • 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
    • B32B3/266—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 an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • 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
    • 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
    • E04B1/948—Fire-proof sealings or joints
    • 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
    • B32B2262/10—Inorganic fibres
    • B32B2262/105—Ceramic 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
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
    • B32B2317/122—Kraft paper
    • 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
    • B32B2581/00—Seals; Sealing equipment; Gaskets

Definitions

  • This invention relates to preformed flexible expandable fire- retardant seals.
  • Flexible expandable seals are used, for example, within cavities between external and internal walls of buildings, between partitions and in roofing sections and concrete ceilings to provide inter alia fire-retardant properties.
  • Recent legislation imposes restrictions on impact and airborne sound transmissions in, inter alia,, buildings and the present invention sets out to provide a flexible expandable fire-retardant seal which not only overcomes or alleviates many of the disadvantages to be found with existing fire-retardant seals but also has acoustic airborne and impact sound transmission properties to meet the requirements of all current legislation.
  • our UK Patent Application 2234938 discloses an intumescent fire barrier of relatively light weight which comprises a layer of wire mesh sandwiched between sheets of ceramic fibre material each coated on at least one face with vermiculite. One or both sides of each sheet is coated with an intumescent paint which, on drying, provides a surface coating which can flex at least to a limited extent without cracking.
  • the assembly of the wire mesh and coated fibre sheets is enveloped in one or more sheets of material having an external metallic foil surface.
  • Our International Patent Application W0 02/10525 Al discloses a fire-resistant spacer for separating tiled or slatted roof structures of adjoining buildings or building sections comprises at least one sheet of intumescent material and at least one sheet of deformable material sealed within an envelope of flexible material and a rib of flexible cellular fire- retardant foam or sponge in contact with an exposed surface of the envelope between opposed side edges thereof.
  • the arrangement is such that in use the sides of the sealed envelope in which the intumescent material is present extend to positions at which they can be secured to neighbouring roof structure (preferably joists) of adjoining buildings or building sections with the rib extending between these neighbouring structures and to a height at least equal to the height of neighbouring tile battens of the roof structures, the sealed envelope and rib being subsequently covered by roof tiles.
  • UK Patent Application 2318594 discloses a concealed cavity fire stopping system which uses a preformed plastic sack which can be shaped to fill the voids or cavities common in the fabric of most buildings which unless fire stopped will allow fire spread through those cavities.
  • US Patent Application 2003/0049406 discloses a composite fire stopping article capable of fire stopping through-penetrations without the need for a secondary reinforcement structure which includes an interior insulating material, such as mineral wool, sandwiched between layers of an intumescent material.
  • the insulating material and intumescent material may be enclosed in a bag formed of a polymeric material.
  • the intumescent material is substantially free of graphite and consists essentially of filler material, binder material, and a hydrated alkali metal silicate intumescent component.
  • a flexible seal which comprises an elongate generally rectangular envelope of reinforced paper having an external metallic surface finish which encloses an elongate generally rectangular wire mesh and a similarly shaped elongate sheet of intumescent material, the seal being formed with a series of spaced airflow passageways extending from a lower surface to an upper surface of the seal.
  • the reinforced paper may comprise craft paper.
  • the seal may include two elongate sheets of intumescent material, one on either side of the wire mesh.
  • the intumescent sheet may comprise a ceramic fibrous material or a sheet or cloth of inorganic fibres coated or lined with intumescent material.
  • the intumescent sheet may comprise ceramic fibres mixed with exfoliating graphite and/or sodium silicate in granular and/or powder and/or chip form.
  • Two or more rows of spaced airflow passageways may be provided, each row running lengthwise of the seal and generally parallel to the longitudinal axis of the seal.
  • the airflow passageways of neighbouring rows may be out of register with one another.
  • the passageways may be circular, rectangular, elongate, oval or otherwise.
  • Figure 1 is a plan view from above of a seal in accordance with the invention.
  • Figure 2 is a section taken along line II-II of Figure 1.
  • the acoustic fire-retardant seal illustrated in the drawings is dimensioned for positioning within a wall cavity between the outer and inner walls of a building, for example a timber framed or brick walled building, at the transition between a lower and an upper storey of the building.
  • the seal operates to prevent the movement of smoke and flames between the storeys in the event of a fire, to provide a ventilated acoustic barrier in normal circumstances and to inhibit the collection of moisture within the cavity to the detriment of, for example, the timber walls of a timber framed house.
  • the illustrated seal comprises an elongate envelope 1 of reinforced paper having an external metallic surface finish.
  • the envelope is typically produced from craft paper.
  • the adjoining faces of the envelope 1, the mesh 2 and the sheet 3 are shown spaced apart. This spacing is for ease of illustration and understanding. In practice, the adjoining surfaces will be in contact with one another.
  • the intumescent strip or sheet may comprise a ceramic fibrous material or a sheet or cloth of inorganic fibres coated or lined with intumescent material.
  • the intumescent strip or sheet may comprise ceramic fibres mixed with exfoliating graphite and/or sodium silicate in granular and/or powder and/or chip form.
  • a series of spaced ventilation passageways 4 extend through the seal. As shown, these passageways are generally oval in section. Passageways having other cross-sections and a circular, elongate, rectangular or the like may however be employed. Typically, the width of the passageways, is around 5mm to 15mm and the length is typically around 20mm to 40mm. A preferred length is 2.5cm. As shown, three generally parallel rows of passageways 4 are provided. Typically, the spacing between neighbouring passageways of each row is between 25 and 40 mm; a preferred spacing is around 35mm. Other dimensions for the passageways and their spacings may however be employed. The width of the envelope is typically between 10cm and 30cm, preferably around 21cm, and its length is determined by the length of the cavity to be filled.
  • a typical space is between 30cm and 40cm; a preferred length is 35.5cm.
  • the seal is produced as a roll from which pieces of the required length can be cut.
  • the seal is positioned lengthwise between the cavity walls of, for example, a brick built or timber framed house at the level of the transition between upper and lower storeys of the building.
  • the seal is flexed across its width to fit the cavity and is retained in place by friction or by securing one or both sides of the seal to the adjoining walls.
  • the seal is preferably positioned with its upper surface inclined towards the outer brick wall of the building and away from the inner wall or timber frame of the house. This prevents moisture collection on or close to the inner wall or timber frame.
  • the passageways 4 enable air to circulate freely within the cavity.
  • the seal In the event of a fire, the seal exfoliates completely to fill the cavity and prevent the flow of flames and smoke between the two storeys. In normal use, the seal acoustically insulates the upper floor of the building from airborne and impact sounds generated at the lower floor of the building and vice versa.
  • a second sheet of intumescent containing material may be provided between the wire mesh 2 and the adjoining inner face of the envelope 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

La présente invention se rapporte à un joint souple, qui comprend une enveloppe allongée, généralement rectangulaire, de papier renforcé, qui présente un fini de surface métallique externe, à l'intérieur de laquelle sont placés un treillis métallique généralement rectangulaire et une bande ou une feuille allongée, de même forme, d'une matière intumescente. Le joint est formé de manière qu'il soit doté d'une série de passages d'écoulement d'air espacés, qui s'étendent d'une surface inférieure à une surface supérieure du joint.
EP05701914A 2004-02-18 2005-01-17 Joint souple Withdrawn EP1721051A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0403597A GB2411149B (en) 2004-02-18 2004-02-18 Flexible seal
PCT/GB2005/000147 WO2005080703A1 (fr) 2004-02-18 2005-01-17 Joint souple

Publications (1)

Publication Number Publication Date
EP1721051A1 true EP1721051A1 (fr) 2006-11-15

Family

ID=32039954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05701914A Withdrawn EP1721051A1 (fr) 2004-02-18 2005-01-17 Joint souple

Country Status (4)

Country Link
EP (1) EP1721051A1 (fr)
AU (1) AU2005215432A1 (fr)
GB (1) GB2411149B (fr)
WO (1) WO2005080703A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009245873A1 (en) * 2008-12-10 2010-07-01 Ig6 Pty Ltd Fire containment devices and components therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3367946D1 (en) * 1982-09-14 1987-01-15 American Vamag Co Fire protection material and its use
GB2234938B (en) * 1989-08-18 1992-12-09 Environmental Seals Ltd Improvements in and relating to intumescent fire barriers and their method of manufacture
GB9107466D0 (en) * 1991-04-09 1991-05-22 Environmental Seals Ltd Improvements in and relating to intumescent fire seals and their method of manufacture
GB2318594A (en) * 1996-10-23 1998-04-29 John Victor Kernaghan Firestopping system for building cavities
GB2365452B (en) * 2000-07-29 2003-09-24 Environmental Seals Ltd Fire resistant spacer
US7018699B2 (en) * 2001-08-09 2006-03-28 3M Innovative Properties Company Fire stop article

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005080703A1 *

Also Published As

Publication number Publication date
GB0403597D0 (en) 2004-03-24
GB2411149A (en) 2005-08-24
WO2005080703A1 (fr) 2005-09-01
AU2005215432A1 (en) 2005-09-01
GB2411149B (en) 2007-05-23

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