WO2005080703A1 - Flexible seal - Google Patents

Flexible seal Download PDF

Info

Publication number
WO2005080703A1
WO2005080703A1 PCT/GB2005/000147 GB2005000147W WO2005080703A1 WO 2005080703 A1 WO2005080703 A1 WO 2005080703A1 GB 2005000147 W GB2005000147 W GB 2005000147W WO 2005080703 A1 WO2005080703 A1 WO 2005080703A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
intumescent
elongate
sheet
passageways
Prior art date
Application number
PCT/GB2005/000147
Other languages
French (fr)
Inventor
Derek Alfred Ward
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
Priority to AU2005215432A priority Critical patent/AU2005215432A1/en
Priority to EP05701914A priority patent/EP1721051A1/en
Publication of WO2005080703A1 publication Critical patent/WO2005080703A1/en

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

  • 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.
  • 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.
  • 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

A flexible seal 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 strip or sheet of intumescent material. The seal is formed with a series of spaced airflow passageways extending from a lower surface to an upper surface of the seal.

Description

FLEXIBLE SEAL
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.
According to the present invention in one aspect, there is provided 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. Alternatively, 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. In cross-section, the passageways may be circular, rectangular, elongate, oval or otherwise.
The invention will now be described by way of example only with reference to the accompanying diagrammatic drawings in which :-
Figure 1 is a plan view from above of a seal in accordance with the invention; and
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. Positioned within the envelope 1 is a length of wire mesh 2 and a sheet of intumescent containing material 3. In Figure 2, 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. Alternatively, 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. Typically, the seal is produced as a roll from which pieces of the required length can be cut. In use, 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.
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.
It will be appreciated that the foregoing is merely exemplary of fire- retardant seals in accordance with the invention and that various modifications can readily be made thereto without departing from the true scope of the invention as set out in the appended claims. For example, a second sheet of intumescent containing material may be provided between the wire mesh 2 and the adjoining inner face of the envelope 1.

Claims

1. 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.
2. A seal as claimed in claim 1 wherein the reinforced paper comprises craft paper.
3. A seal as claimed in claim 1 or claim 2 which includes two elongate sheets of intumescent material, one on either side of the wire mesh.
4. A seal as claimed in any one of the preceding claims wherein the or each intumescent sheet comprises a ceramic fibrous material.
5. A seal as claimed in any one of claims 1 to 3 wherein the or each intumescent sheet comprises a sheet or cloth of inorganic fibres coated or lined with intumescent material.
6. A seal as claimed in any one of claims 1 to 3 wherein the or each intumescent strip or sheet comprises ceramic fibres mixed with exfoliating graphite and/or sodium silicate in granular and/or powder and/or chip form.
7. A seal as claimed in any one of the preceding claims wherein a plurality of rows of spaced airflow passageways are provided, each row running lengthwise of the seal and generally parallel to the longitudinal axis of the seal.
8. A seal as claimed in any one of the preceding claims wherein each airflow passageway is elongate with its longer dimension extending longitudinally of the envelope.
9. A seal as claimed in any one of claims 1 to 7 wherein each airflow passageway is circular in cross-section.
10. A seal as claimed in any one of claims 1 to 7 wherein each airflow passageway is oval in cross-section.
11. A seal as claimed in claim 7 or claims 8 to 10 when dependent on claim 7 wherein the passageways of neighbouring rows are out of register one with another.
PCT/GB2005/000147 2004-02-18 2005-01-17 Flexible seal WO2005080703A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2005215432A AU2005215432A1 (en) 2004-02-18 2005-01-17 Flexible seal
EP05701914A EP1721051A1 (en) 2004-02-18 2005-01-17 Flexible seal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0403597.8 2004-02-18
GB0403597A GB2411149B (en) 2004-02-18 2004-02-18 Flexible seal

Publications (1)

Publication Number Publication Date
WO2005080703A1 true WO2005080703A1 (en) 2005-09-01

Family

ID=32039954

Family Applications (1)

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

Country Status (4)

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

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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0106144A2 (en) * 1982-09-14 1984-04-25 American Vamag Company, Incorporated Fire protection material and its use
GB2234938A (en) 1989-08-18 1991-02-20 Environmental Seals Ltd Improvements in and relating to intumescent fire barriers and their method of manufacture
EP0508751A2 (en) * 1991-04-09 1992-10-14 Environmental Seals Limited 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
WO2002010525A1 (en) 2000-07-29 2002-02-07 Environmental Seals Ltd Fire resistant spacer
US20030049406A1 (en) 2001-08-09 2003-03-13 3M Innovative Properties Company Fire stop article

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0106144A2 (en) * 1982-09-14 1984-04-25 American Vamag Company, Incorporated Fire protection material and its use
GB2234938A (en) 1989-08-18 1991-02-20 Environmental Seals Ltd Improvements in and relating to intumescent fire barriers and their method of manufacture
EP0508751A2 (en) * 1991-04-09 1992-10-14 Environmental Seals Limited 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
WO2002010525A1 (en) 2000-07-29 2002-02-07 Environmental Seals Ltd Fire resistant spacer
US20030049406A1 (en) 2001-08-09 2003-03-13 3M Innovative Properties Company Fire stop article

Also Published As

Publication number Publication date
EP1721051A1 (en) 2006-11-15
GB2411149B (en) 2007-05-23
GB0403597D0 (en) 2004-03-24
GB2411149A (en) 2005-08-24
AU2005215432A1 (en) 2005-09-01

Similar Documents

Publication Publication Date Title
EP1404414A1 (en) Fire resistant barrier
US8007886B2 (en) Performance enhancing underlayment, underlayment assembly, and method
WO2005080702A1 (en) Flexible seal
HU211749B (en) Wall-cover for water insulation
KR101995447B1 (en) Composite exterior structure for construction with integral flat inorganic layer
WO2008149090A1 (en) Thermal insulation structure
WO2005080703A1 (en) Flexible seal
JP3979454B2 (en) Exterior material mounting structure
JP4057275B2 (en) Fireproof joint structure
GB2405415A (en) Encapsulated insulation with metallised polyethylene film having low emissivity
EP1305482B1 (en) Fire resistant spacer
JP2004353224A (en) Wall structure and building
CN113323192B (en) Wallboard assembly and building structure
JP2014109119A (en) Fire compartment through-part structure of hollow wall
JP4426889B2 (en) Building walls and buildings
JP2002256639A (en) Partition wall structure
GB2434482A (en) Angular sound baffle
JP4023567B2 (en) Exterior material mounting structure
KR20220023672A (en) The combined construction of a passive house with mesh structure inserted into the frame of the building and the method of insulation soundproofing fireproofing using it
JPS6212732Y2 (en)
RU2194130C2 (en) Device for fireproof sealing of exhaust ducts in building structures
KR200353117Y1 (en) sandwich panel
CA1285734C (en) Thermic insulating covers for facade and the like walls
CN117758919A (en) Fireproof blocking light steel keel composite wallboard and building
ITPD20120039A1 (en) INSULATING PANEL FOR BUILDING AND PROCEDURE FOR ITS REALIZATION

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Ref document number: DE

WWE Wipo information: entry into national phase

Ref document number: 2005701914

Country of ref document: EP

Ref document number: 2005215432

Country of ref document: AU

ENP Entry into the national phase

Ref document number: 2005215432

Country of ref document: AU

Date of ref document: 20050117

Kind code of ref document: A

WWP Wipo information: published in national office

Ref document number: 2005215432

Country of ref document: AU

WWP Wipo information: published in national office

Ref document number: 2005701914

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 2005701914

Country of ref document: EP