WO2015071482A1 - Élément d'étanchéité isolant pour joints situés en haut d'un mur - Google Patents

Élément d'étanchéité isolant pour joints situés en haut d'un mur Download PDF

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Publication number
WO2015071482A1
WO2015071482A1 PCT/EP2014/074857 EP2014074857W WO2015071482A1 WO 2015071482 A1 WO2015071482 A1 WO 2015071482A1 EP 2014074857 W EP2014074857 W EP 2014074857W WO 2015071482 A1 WO2015071482 A1 WO 2015071482A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulating material
insulating
strip
side section
material strips
Prior art date
Application number
PCT/EP2014/074857
Other languages
English (en)
Inventor
Herbert Münzenberger
Peter Schulze
Sebastian Simon
Mario Paetow
Manfred Klein
Original Assignee
Hilti Aktiengesellschaft
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 Hilti Aktiengesellschaft filed Critical Hilti Aktiengesellschaft
Priority to EP14800030.0A priority Critical patent/EP3071759A1/fr
Priority to CA2925428A priority patent/CA2925428A1/fr
Publication of WO2015071482A1 publication Critical patent/WO2015071482A1/fr

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Classifications

    • 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
    • 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
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6801—Fillings therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7409—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
    • E04B2/7411—Details for fire protection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Definitions

  • the present invention deals generally with the field of acoustical or firestopping insulation for head-of-wall joints, including, possibly, intumescent components.
  • a head-of-wall joint (also sometimes referred to as a top-of-wall joint) refers to the linear junction or interface existing between a top section of a framing or wallboard wall assembly and the ceiling, where the ceiling may be a next-level floor or corrugated pan roof deck, for example. Head-of-wall joints often present a serious challenge in terms of reducing or preventing the spread of smoke and fire during a building fire.
  • a wall to ceiling connection of many newly constructed buildings consists
  • metal framing assemblies are generally constructed from a plurality of metal framing members including studs, joints, trusses, and other metal posts and beams formed from sheet metal and frequently fabricated to have the same general cross- sectional dimensions as standard members used for similar purposes.
  • C-shaped studs and U-Shaped studs may vary in their size, which, however, are standardized.
  • the steel track (or channel) is configured to receive steel studs between the legs of the shaped channel.
  • a wallboard is generally attached to at least one side of the studs.
  • the studs and wallboard are in many instances spaced apart from the ceiling a short gap distance in order to allow for ceiling deflections caused by seismic activity or moving overhead loads.
  • Track and stud assemblies that allow for ceiling deflections are commonly referred to as dynamic head-of-wall systems.
  • Exemplary steel stud wall constructions may be found in U.S. Pat. Nos. 4,854,096 and 4,805,364 both to Smolik, and U.S. Pat. No. 5,127,203 to Paquette.
  • Firestops are thermal barrier materials or combinations of materials used for filling gaps and openings such as in the joints between fire-rated walls and/ or floors of buildings.
  • firestops can be used in walls or floors to prevent fire and smoke from passing through the gaps or openings required for cables, pipes, ducts, or other conduits.
  • Firestops are also used to fill joint gaps that occur between walls, between a ceiling and the head-of-wall joints.
  • Walls are increasingly being made of gypsum wallboard affixed to a framework of metal studs capped by a horizontally extending track.
  • Ceilings are increasingly being made by pouring concrete onto fluted steel.
  • the distance between the horizontally extending track at the top of the wall is often fixed in relationship to the ceiling, the gypsum wallboards are subject to expansion and contraction due to motion of other building components, ground settling, or other causes.
  • a fire resistant material such as, for example, mineral wool is often times stuffed into the gaps between the ceiling and wallboard (see, e.g., U.S. Pat. No. 5,913,788 todorf).
  • mineral wool is often stuffed between a steel header track (e.g., an elongated U-shaped channel) and a corrugated steel roof deck (used in many types of steel and concrete building constructions); a fire resistant and generally elastomeric spray coating is then applied onto the exposed mineral wool to thereby form a fire resistant joint seal (see, e.g., U.S. Pat. No. 7,240,905 to Stahl).
  • Intumescent materials have long been used to seal certain types of construction gaps such as, for example, conduit through-holes.
  • intumescent and fire barrier materials (often referred to as firestop materials or fire retardant materials) have been used to reduce or eliminate the passage of smoke and fire through openings between walls and floors and the openings caused by through-penetrations (i.e., an opening in a floor or wall which passes all the way through from one room to another) in buildings, such as the voids left by burning or melting cable insulation caused by a fire in a modern office building.
  • Characteristics of fire barrier materials suitable for typical commercial fire protection use include flexibility prior to exposure to heat, the ability to insulate and/or expand, and the ability to harden in place upon exposure to fire (i.e., to char sufficiently to deter the passage of heat, smoke, flames, and/or gases).
  • fire block header tracks utilize an expandable fire-resistant material, such as an intumescent material, applied along a length of the header track of a wall assembly.
  • the intumescent material is either positioned on the web of the header track, on the legs (hereinafter also referred to as flange) of the header track or alternatively wraps around a corner of the header track, extending both along a portion of a web of the header track and a flange of the header track.
  • the intumescent material advantageously is held in place between the web of the header track and the floor or ceiling above the wall.
  • the intumescent material When exposed to a sufficient temperature, the intumescent material expands to fill gaps at the head-of-wall. The portion of the intumescent trapped between the header track and the floor or ceiling ensures that the intumescent stays in place as it expands and does not become dislodged as a result of the expansion.
  • the metal tracks often require a unique construction on the exterior surface of the metal track which can have a predefined area such as a recess or the like which identifies the specific location required for placement of such an
  • intumescent and/or acoustic layer of insulation material In particular, as the joint moves responsive to normal expansion and contraction of the building components, the insulating tape and/or the coatings of insulating material which is attached directly to the surfaces of flanges can become dislodged from components of the head-of-wall area, that is, particularly dislodging from the surfaces of the downwardly extending side sections of the track or runner. Also these systems do not specifically address variations in the contour or profile of the ceiling or roof area which comes into direct abutment with the upper portion of the metal track. Such variations in the configuration of the building construction in this area can form gaps between the track and the adjacent roof or ceiling area which are not adequately addressed for insulation by the above described prior art systems.
  • a further significant disadvantage of the prior art head-of-wall fire block arrangements is that they consist of an intumescent insulating material which expands up to ten times its normal thickness when exposed to sufficient heat.
  • a material comprising additives which additives cause the swelling of the material must be used.
  • additives are expensive making the insulating material expensive.
  • One of the advantages of the apparatus of the present invention is that it is usable with conventionally OEM metal track construction and does not require any customized design for the ceiling runner, primarily, because the present construction works best when not attached in any manner to the track side surfaces sections particularly where it is important to allow for some amount relative movement therebetween during normal expansion and contraction of building materials and sections which occurs commonly.
  • the inventors now have found out that it is not necessary to use an intumescent material as firestop material in order to provide reliable fire prevention provided that the material is fire resistant, i.e., material must not burn away but builds a stable ash crust.
  • 2013/118102 Al published May 19, 2011 to Don A. Pilz et al. assigned to California Expanded Metal Products Company on a "WALL GAP FIRE BLOCK DEVICE; SYSTEM AND METHOD”; U.S. Patent Application Publication No. 2013/205694 Al published August 15, 2013 to James P. Stahl assigned to Specified Technologies Inc. on "INSULATING GASKET CONSTRUCTION FOR HEAD-OF-WALL JOINTS"; U.S. Patent No.
  • the wall gap fire blocks can be applied to a wall bottom track to protect a foot-of-wall gap or a (vertical or horizontal) gap in a location other than the head or foot of a wall.
  • the intumescent material in the known fire block header tracks preferably is applied at the factory during the manufacturing process. In some circumstances, it may be desirable to apply the insulating material on site. Thus, certain preferred embodiments of the present fire blocks are well-suited to application on the job site.
  • Preferred embodiments of the present invention provide an elongated, and optional adhesive, insulating material strip that can be applied to a header track or other head-of-wall structure to create a head-of- wall insulation block, including, fire block.
  • the insulating strip may include strip portions of another material, or the material itself may include material portions of another material if desired.
  • the insulating strip comprises a support layer and at least four insulating material strips, and optionally at least one cover layer that is assigned to one of the insulating material strips and preferably covers only the one insulating material strip.
  • the support layer which is an elongated layer, is designed as a continuous strip defining two faces, an upper and a bottom face.
  • the width of the continuous strip is selected depending on the size of the header track or other construction product to which the insulating strip shall be attached.
  • the continuous strip defines a middle section which extends generally horizontally and which will be positioned on the web of, for example, a header track and defines side sections (hereinafter also referred to as first and second side section), so that the total width of the tape is larger than the width of the web. While installing the insulating strip the side sections shall cover at least partially both flanges of the header track or other head- of-wall structure.
  • the four insulating material strips are arranged side-by-side on the same face of the support layer, either the upper or the bottom face.
  • the strips are elongated strips and extend along the web when the insulating strip is positioned on the header track, i.e., in length direction.
  • the insulating material strips are positioned at a certain distance between each material strip to define separated material strips and to define sections without any insulating material therebetween.
  • one insulating material strip is positioned on each of the side sections so that one insulating material strip is positioned on the first side section and another insulating material strip is positioned on the second side section of the continuous strip.
  • the other two insulating material strips are positioned in the middle section of the continuous strip so that they are positioned between the insulating material strip of the first side section and the insulating material strip of the second side section.
  • the insulating material strips either are facing towards the header track or other construction product or towards the supporting stricter, like the floor, wall or ceiling. It is preferred that the insulating strips are facing towards the header track so that the support layer serves as a protective layer to protect the insulating strips as discussed further below.
  • the four insulating material strips are arranged so that two of the insulating material strips are arranged on one face of the continuous strip and two of the insulating material strips are arranged on the opposite face of the continuous strip. After installing the insulating strip two insulating material strips are arranged on the bottom face and the other two insulating material strips are arranged on the upper face of the continuous strip.
  • one insulating material strip is positioned on each of the side sections so that one insulating material strip is positioned on the first side section and another insulating material strip is positioned on the second side section of the continuous strip.
  • the other two insulating material strips are positioned on the middle section of the continuous strip so that they are arranged between the insulating material strip of the first side section and the insulating material strip of the second side section.
  • the insulating material strips are arranged at a certain distance from each other.
  • the two insulating material strips which are positioned on the first and the second side section are arranged on the same face of the continuous strip.
  • the other two insulating material strips which are positioned on the middle section are arranged on an opposite face of the continuous strip.
  • the insulating material strips will preferably include a fire- resistant material and/or an acoustically insulating material.
  • the insulating material strips may be made from the same or different material.
  • fire-resistant material shall include a non-inflammable material, a flame-proof material, that is flame-proof by itself or a material comprising additives to make the material flame-proof.
  • the material shall form a stable ash crust in case of fire.
  • Fire-resistant material also may include intumescent materials. These intumescent materials may be constructed partially or entirely from an intumescent material such as CP 646 from Hilti, for example.
  • It also can be made solely from an acoustical insulating material for applications where sound transmissions are found to be desirable. Such acoustical insulating configurations can preferably be formed of a felt acoustical insulating material. Alternatively, it can be formed of a foamed insulating material. It is also possible for the insulating material of the present invention to have components of both fire-resistant and acoustical sealing therewithin.
  • the insulating material may preferably be constructed partially or entirely from a pressure-resistant material such as acrylate based polymer or a hard putty such as rubber, e.g., polyisobutylene based rubber. These materials may comprise a reinforcing member such as glass fibers or a glass fiber fabric to enhance strength of the material.
  • pressure-resistant means that while installing the wallboard the material shall be deformed only slightly so that in case of vertical movement of the wallboard tilting and entanglement of the insulating material is always avoided.
  • the insulating material may be any suitable material.
  • Plasticines which are also referred to as putties, are frequently used for this application. They generally consist of a liquid polymer such as butyl rubber, plasticizers (paraffin oil, phthalates, adipates, etc.) and fillers, with a filler content of up to 80 percent.
  • the plasticine contains, as liquid polymer, at least one
  • polyurethanes representative of the group comprising polyurethanes, polyvinyl acetates, polyvinyl ethers, polyvinyl propionates, polystyrenes, natural or synthetic rubbers, poly((meth)acrylates) and homopolymers and copolymers based on (meth)acrylates, acrylonitrile, vinyl esters, vinyl ethers, vinyl chloride and/or styrene, preferably poly(alkyl methacrylate), poly(alkyl acrylate), poly(aryl methacrylate), poly(aryl acrylate) and/or copolymers thereof with n-butyl acrylate and/or styrene.
  • the plasticine may comprise fire-protection additives.
  • U.S. patent application No. 2005/032934 Al which is incorporated in its entirety by reference herein.
  • the insulating material is also abrasive-resistant to resist abrasion caused by the wall member rubbing against the insulating material when moving up and down to movement of the building.
  • the material may either be abrasive-resistant by itself, i.e., due to the material or may be made abrasive-resistant by including a protective layer.
  • the insulating strip comprises insulating material strips made from different materials.
  • Enhanced strength or reinforcement of the material can be provided by including a reinforcing cover layer (herein also referred to as cover layer or protective layer) on one side of the insulating material.
  • cover layer a reinforcing cover layer
  • cover layer is made of an abrasion-resistant material to avoid abrasion resulting in loss of the insulating material caused by repeatedly rubbing of the wallboard over the insulating material.
  • the cover layer can be a film material, preferably a synthetic film like plastic or poly-type material such as polyalkylene material, for example polyethylene material.
  • the cover layer can be a fabric made of abrasion-resistant fibers, like glass fibers or any other suitable material.
  • the cover layer provides protection in the event that the wall is designed to accommodate vertical movement, which could result in the wallboard rubbing against the insulating material.
  • the facing member still permits the insulating material to expand in case it comprises an intumescent material.
  • the cover layer has a printable surface.
  • a positioning aid can be provided by including a mark in form of an optionally colored line on the cover layer which helps to affix the insulating strip on the header track in an ideal position. This may be important in case the insulating strip extends/protrudes beyond the surface of the web of the header track, in particular when the insulating strip is installed on site.
  • the cover layer After having attached the insulating material strip of the first embodiment (all insulating material strips positioned on the same side of the support layer) to the track the cover layer will constitute the outer surface of the material.
  • the cover layer will be in contact with either the ceiling or wallboard or both the ceiling and the wallboard.
  • the cover layer includes both a fabric and a synthetic film, whereas preferably the film constitutes the outer surface of the insulating strip so that the fabric is positioned between the insulating material and the synthetic film.
  • the cover layer does not extend beyond the insulation material, that is, the cover layer is of the same size as the insulating material or insulating material portion.
  • the support layer of the insulating strip is at the same time the cover layer.
  • the continuous strip serves as a cover layer to protect the putty against abrasion caused by the wall member rubbing against the insulating material when moving up and down to movement of the building.
  • the underneath surface of the insulating material strip or in case the insulating strip includes a support layer the underneath surface of the support layer may include an adhesive, if desired.
  • an adhesive may be provided on the underneath surfaces of both the insulating material strip and the support layer.
  • a removable protective layer covers the underneath surface of the entire insulating material strip and/or the support layer until the insulating strip is ready to be applied.
  • the insulating material strip is made of a sticky material, such as soft or hard putty, an adhesive will not be necessary since the material itself provides sufficient adhesive power to the insulating strip.
  • one or both faces of the continuous strip may include an adhesive, if desired.
  • both faces of the continuous strip includes an adhesive, whereas more preferably the adhesive on one face of the continuous strip provides a stronger adhesion power that other face of the continuous strip.
  • An additional cover layer may be provided on some of the insulating strips, if desired.
  • the overall width of the elongated insulating strip from one outside edge of the insulating strip to the other outside edge varies depending on the size of the header track or other construction product on which the insulating strip shall be installed.
  • the width of the middle section depends on the width of the web of the header track or other construction product.
  • the width of the side sections depend on the desired application, e.g., normal and slotted tracks, and/or the desired deflection requirement of the insulating strip.
  • the width of the side sections again depend on the size of the legs or the type of the leg. In any event, the insulating strips on the side sections and the insulating strips on the middle section are only positioned on the legs and on the web of the header track or other
  • the edge of the header track will be free of any insulating material.
  • the width of the insulating material strips on the side sections and the width of the insulating material strips on the middle section may be same or different. In one embodiment all insulating material strips are the same. It is, however, not necessary that the width of the insulating material strip on the middle section is the same as the width of the insulating material strips on the side section, to provide sufficient fire, smoke, and sound insulation. Therefore, in another embodiment the width of the insulating material strips on the side sections is greater that the width of the insulating material strips on the middle section.
  • the insulating strip can be applied to a header track or other construction product, such as a bottom track, metal stud, metal flat strap or any other framing member that needs an open gap between the wallboard and a perimeter structure, in particular for movement (deflection or drift) but not restricted thereto.
  • the elongated insulating strip can be used for sealing any open gap between the wallboard and the
  • the insulating strip allows the gap to stay open for movement and provides fire and smoke protection and/or sound reduction.
  • two material strip portions may be positioned on the top of the header track or other head-of-wall structure facing away from the header track towards the ceiling or wall to provide a smoke, air and sound seal at the head-of-wall.
  • the other two material strip portions may then be positioned on a side flange of the header track or side face of the other head-of-wall structure so that the other two material portion are positioned between the header track or other head-of-wall structure and the wall board.
  • the compressible material strip portion may be positioned on the top of the header track or other head-of-wall structure to provide a smoke, air and sound seal at the head-of-wall.
  • the pressure-resistant material strip portion may be positioned on a side flange of the header track or side surface of the other head-of-wall structure so that the pressure-resistant portion is positioned between the header track or other head-of-wall structure and the wall board.
  • the two insulating material strips that are to be positioned on the web of the track are arranged near the edges of the track.
  • FIG. la is a cross-sectional view of the insulating strip assembly according to a first embodiment of the invention having certain features, aspects and advantages of the present invention.
  • FIG. lb is a cross-sectional view of the insulating strip assembly according to a further embodiment of the invention having certain features, aspects and advantages of the present invention.
  • FIG. 2 is a cross-sectional view of the embodiment of the present disclosure.
  • FIG. 3 is a stud wall assembly with the insulating strip assembly of FIG. la installed at the head-of-wall.
  • FIG. 4 is a stud wall assembly with the insulating strip assembly of FIG. lb installed at the head-of-wall.
  • FIG. 4a is an extended view of a portion of the wall assembly of FIG. 4 identified by the circle 4a in Figure 4.
  • FIG. la illustrates an insulating strip assembly 1, which is also referred to herein as insulating strip.
  • the insulating strip 1 is an elongated strip assembly that preferably is constructed as an integrated assembly of multiple components.
  • the insulating strip 1 may be supplied on a roll, in a folded arrangement or any other suitable manner.
  • the insulating strip 1 is provided as a separate component that is applied to a head-of-wall on site, as is described in greater detail below.
  • the illustrated insulating strip 1 includes fire-resistant material strips 3 and 4. All fire-resistant strips 3 and 4 are positioned on the same face of the support layer 2 spaced apart from each other. The fire-resistant strips 4 are arranged at a certain distance from each other to form a section inbetween where no insulating material is arranged. The insulating strips 3 and 4 may be secured to the support layer 2 by adhesives 5 applied to the bottom of the insulating strips 3 and 4. The dotted lines indicate the position of the insulating strip 1 which aligns with the edge of a header track during or after installation of the insulating strip.
  • the portions of the insulating strip 1 extending to the left hand side and the right hand side of the dotted line shall constitute the side section, namely the first side section on the left hand side and the second side section on the right hand side.
  • the portion inbetween the side sections (inbetween dotted lines) constitutes the middle section.
  • the overall width of the insulating strip 1 from one outside edge of the insulating strip 1 to the other outside edge varies depending on the size of the header track 20 or other construction product.
  • the width of the middle section depends on the width of the web of the header track.
  • the width of the side sections depend on the desired application, e.g. normal and slotted tracks, and/or the desired deflection requirement of the insulating strip 1.
  • the width of the side section is selected so that the insulating strip 3 is only arranged at the leg of the header track so that the edge of the header track is free of any insulating material.
  • the width of the insulating material strips 3 may be the same as the width of the insulating material 4 or may be different.
  • the width of the insulating material strip 3 is the same as the width of the insulating material strip 4. It is, however, not necessary that the width of the insulating material strip 4 is the same as the width of the insulating material 3, to provide sufficient fire, smoke, and sound insulation. Therefore, in another embodiment the width of the insulating material strips 3 is greater that the width of the insulating material strips 4.
  • the insulating material strips 3 and 4 of the illustrated insulating strip 1 may be constructed from sticky putty which may comprise
  • the term insulating material is to be interpreted to cover all possible fire-resistant materials that provide sufficient fire, smoke, and sound isolation as described above, unless otherwise indicated.
  • the support layer 2 is a tape, preferably a poly tape such as polyethylene tape.
  • the adhesives 5 may be omitted. To assure good adhesion, however, the adhesives are preferably applied. This also prevents tearing off the insulating material strips 3 and 4 from the support layer while unrolling the insulating strip 1 from the supply roll.
  • An adhesive 5 will preferably be used when an additional adhesive layer (not shown) is applied to the bottom surface of the support layer 2 facing away from the surface on which the insulating strips 4 are arranged as shown in FIG 2. Said adhesive layer supports positioning and fixing the insulating strip 1 on a header track, in particular if a long strip shall be applied in one step on-site.
  • An adhesive 5 will be necessary when the insulating material does not provide adhesion by itself, e.g., in case of a material on an acrylate basis.
  • FIG. lb illustrates an insulating strip assembly 1, which is very similar to the insulating strip 1 shown in FIG. la. Accordingly, the same reference numbers are used to indicate the same or similar components or features between the two embodiments. These two embodiments only differ in the arrangement of the insulating material strips 3 and 4. All other features are identical.
  • the illustrated insulating strip 1 includes fire-resistant material strips 3 and 4.
  • the fire-resistant strips 3 are positioned on the same face of the support layer 2 spaced apart to define the side sections of the insulating strip 1.
  • the fire-resistant strips 4 are positioned side-by-side on the opposing face of the support layer 2, whereas these strips 4 are arranged at a certain distance from each other to form a middle section inbetween where no insulating material is arranged.
  • the insulating strips 3 and 4 may be secured to the support layer 2 by adhesives 5 applied to the bottom of the insulating strips 3 and 4.
  • the dotted lines indicate the position of the insulating strip 1 which aligns with the edge of a header track during or after installation of the insulating strip.
  • the portions of the insulating strip 1 extending to the left hand side and the right hand side of the dotted line shall constitute the side sections. After installation of the insulating strip 1 the side sections are aligned with the legs of a header track or other construction product.
  • Removable cover layers cover the underneath surfaces of the insulating material strips 3 and 4.
  • An optional adhesive layer may be included underneath the insulating material strips 3 or 4 or both and covered by the cover layer.
  • Removable cover layers preferably cover the insulating material strips 4 when an adhesive layer is applied on the bottom surface of the support layer 2 as described in the preceding paragraph.
  • a removable cover layer covers the optional additional adhesive layer on the middle section of the support layer 2.
  • the upper surface of the support layer 2 facing away from the insulating material strips 3, in particular the side sections are not provided with an adhesive. More preferably, in particular when the insulating material is sticky putty said surface of the side sections are coated with a thin silicon layer to avoid sticking the insulating material strips 3 on the support layer 2 when rolled up and prevent tearing off the insulating material strips 3.
  • FIG. 3 illustrates the insulating strip 1 of FIG. la applied to a head-of-wall structure, in particular to a header track 20.
  • the header track is a U-shaped channel that is attached to an upper horizontal support structure 30, such as a floor of an upper floor or a ceiling.
  • Wall studs (not shown) are received in the header track 20 and may be configured for vertical movement relative to the header track 30.
  • a wall board 21 is attached to the studs such as by a plurality of suitable fasteners.
  • the insulating strip 1 is attached to the header track 20 so that a portion, namely the middle section, is positioned between the header track 20 and the horizontal support structure 30 and another portion, the side sections, of the insulating strip 1 is positioned between the legs of the header track 20 and the wall board 21.
  • Each insulating material strip is facing towards the header track and the support layer is facing towards the horizontal support structure, namely the ceiling.
  • FIG. 4 illustrates the insulating strip 1 of FIG. lb applied to a head-of-wall structure, in particular to a header track 20.
  • the header track is a U-shaped channel that is attached to an upper horizontal support structure 30, such as a floor of an upper floor or a ceiling.
  • Wall studs (not shown) are received in the header track 20 and may be configured for vertical movement relative to the header track 30.
  • a wall board 21 is attached to the studs such as by a plurality of suitable fasteners.
  • the insulating strip 1 is attached to the header track 20 so that a portion, the middle section is positioned between the header track 20 and the horizontal support structure 30 and another portion, the side sections, of the insulating strip 1 is positioned between the legs of the header track 20 and the wall board 21.
  • the insulating material strip 3 is positioned between the leg of the header track 20 and the wall board 21 and the insulating material strip 4 is positioned between the web of the header track 20 and the horizontal support structure 30.
  • the support layer 2 in the side section constitutes the face of the insulating strip 1 that faces towards the wall board and comes in direct contact with the wall board 21.
  • the insulating material strip 3 is fixed on the leg of the header track 20 either by its inherent adhesion or by an optional adhesive layer on its surface (not shown), said surface facing towards the leg of the header track 20.
  • the insulating strip 1 (corresponding to the dotted line in FIG. 1) is aligned with the corner between the web and the leg of the header track 20 (also referred to as edge of the header track).
  • the insulating strip 1 is secured on the header track by the adhesion of the insulating strip(s) 3.
  • the adhesive may assist in securing the insulating strip 1.
  • the insulating material strips 4 on the middle section are preferably positioned near the dotted line, so that the material strips are aligned near the edge of the header track 20. With such an arrangement, enhanced smoke and fire sealing may be achieved.
  • the insulating material When exposed to sufficient heat, the insulating material will decompose to form a stable ash crust. When an intumescent material is used, the material will expand when exposed to a sufficient temperature to fill the gaps between the header track 20 and the horizontal support structure 30. Any cover layer that may be present may degrade in response to the exposure to an elevated temperature or in response to pressure exerted by the expansion of the intumescent material, if used.

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

Abstract

La présente invention concerne une bande isolante. La bande isolante comprend une couche de support et une pluralité de bandes en matériau isolant fixées sur la couche de support, lesquelles multiples bandes en matériau isolant sont espacées les unes des autres.
PCT/EP2014/074857 2013-11-18 2014-11-18 Élément d'étanchéité isolant pour joints situés en haut d'un mur WO2015071482A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14800030.0A EP3071759A1 (fr) 2013-11-18 2014-11-18 Élément d'étanchéité isolant pourjoints situés en haut d'un mur
CA2925428A CA2925428A1 (fr) 2013-11-18 2014-11-18 Element d'etancheite isolant pour joints situes en haut d'un mur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361905711P 2013-11-18 2013-11-18
US61/905,711 2013-11-18

Publications (1)

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WO2015071482A1 true WO2015071482A1 (fr) 2015-05-21

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PCT/EP2014/074857 WO2015071482A1 (fr) 2013-11-18 2014-11-18 Élément d'étanchéité isolant pour joints situés en haut d'un mur

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US (1) US20150135622A1 (fr)
EP (1) EP3071759A1 (fr)
CA (1) CA2925428A1 (fr)
WO (1) WO2015071482A1 (fr)

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Publication number Publication date
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EP3071759A1 (fr) 2016-09-28
US20150135622A1 (en) 2015-05-21

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