EP3323957A1 - Sealing flashing - Google Patents

Sealing flashing Download PDF

Info

Publication number
EP3323957A1
EP3323957A1 EP17200244.6A EP17200244A EP3323957A1 EP 3323957 A1 EP3323957 A1 EP 3323957A1 EP 17200244 A EP17200244 A EP 17200244A EP 3323957 A1 EP3323957 A1 EP 3323957A1
Authority
EP
European Patent Office
Prior art keywords
flashing
apron
tape
sealing
roofing
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Withdrawn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
EP17200244.6A
Other languages
German (de)
French (fr)
Inventor
Ryszard Florek
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.)
Fakro PP Sp zoo
Original Assignee
Fakro PP Sp zoo
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 Fakro PP Sp zoo filed Critical Fakro PP Sp zoo
Publication of EP3323957A1 publication Critical patent/EP3323957A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
    • E04D13/147—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs
    • E04D13/1473—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs specially adapted to the cross-section of the parts extending above the roof
    • E04D13/1475—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs specially adapted to the cross-section of the parts extending above the roof wherein the parts extending above the roof have a generally rectangular cross-section

Definitions

  • the subject of an invention is a flashing for sealing a roof penetrating structure.
  • Said flashing comprises a double-sided tape, acting as a sealant and an attachment means for the components of the sealing flashing, particularly the flashing's apron to the roof.
  • Said tape comprises a layered structure with butyl, preferably cross-linked butyl, as a carrier.
  • a flashing designed for sealing connection of a skylight type window with the roofing.
  • Said flashing comprises an upper element adjoining an upper window frame member, two side elements adjoining a two side window frame members and a bottom element adjoining a bottom window frame member.
  • the flashing's elements are connected together in an overlapping manner in accordance with the direction of the roof's incline.
  • flashing elements are L-shaped with a vertical arm adjoining the wall of the corresponding window frame member, while the horizontal arm lies on the roofing.
  • the flashing's bottom element also comprises an apron attached to its horizontal arm.
  • Said apron is made of a lead or aluminium-and-plastic material and is moulded at the flashing's production stage by being bent into a pleated or sinusoidal shape. The apron is covered with strip of butyl protected with paper.
  • any excess of material, gathered in pleats or sinusoids is rolled out on the roofing so that it matches its shape. Then, after removing the protective paper from the adhesive tape of formable butyl, the apron is glued to the roofing. Butyl fills in the pleats of the apron, ensuring that it sits tight against the roof tiles.
  • the butyl accumulated in the material collected in the apron flashing's pleats does not limit unrolling of the apron flashing, i.e. does not "pull the pleats" back again, though this happens when using tapes whose carrier is PET, PP or PVC.
  • the butyl tape is configurated to prevent any uncontrolled peeling of the apron flashing off the roofing.
  • butyl used hitherto, especially at high temperatures, "melts away” and its adhesive properties are not sufficient to ensure long-lasting and firm adhesion of the apron to the roof.
  • the aim of this invention is an apron with a new two-sided tape that seals and affixes the flashing's apron on the surface of the roofing.
  • Said two-sided tape is characterised by adhesive and sealing properties that are better than existing solutions by using cross-linked butyl with at least one adhesive layer made of an acrylic adhesive onto said cross-linked butyl.
  • the flashing according to the invention seals a roof penetrating structure, especially a skylight type window, which is made up of four window frame members joined together: an upper window frame member, a bottom window frame member and two side window frame members.
  • the flashing forms a closed frame composed of the following elements: an upper element, a bottom element and two side elements, connected together in an overlapping manner.
  • the flashing's elements adhere closely to these window frame members to form a closed frame around them.
  • flashing elements are L-shaped with a vertical arm adjoining corresponding window frame member, while the horizontal arm lies under the roofing on a vapour-permeable flashing.
  • the flashing elements are attached by means of a vertical arm to the window frame members of the roof penetrating structure by means of fasteners, preferably screws.
  • the bottom element also comprises an apron, attached to this arm.
  • the apron lies on the roofing and takes on its shape, closely adjoining said roofing.
  • the apron constitutes an extension of the horizontal flashing arm, and is made of the same material as said arm and also lies on the surface of the roofing.
  • the two-sided tape is arranged for attaching the apron of the bottom element to the roofing.
  • the double-sided tape comprises a layered structure with a carrier made of cross-linked butyl and at least one adhesive layers. At least one adhesive layer is arranged for covering one of the outer surfaces of said carrier, so that, when installed, this adhesive layer serves to attach the apron flashing to the roofing surface.
  • the tape's second adhesive layer is arranged for connecting the tape with the underside of the apron.
  • Present solution has been shown in two embodiments, wherein the tape comprises two adhesive layers which are a layer of acrylic adhesive or one adhesive layer of acrylic.
  • the tape When the flashing is installed, the tape is not visible from the outside and its width and length is at most equal to the width and length of the apron flashing to which it is attached.
  • the length is defined as the apron flashing's longest dimension, while the width is the dimension perpendicular to the length dimension.
  • the double-sided tape can be glued to the apron by means of one adhesive layer, whereas the second adhesive layer is then covered with a protective tape that is removed immediately before the apron flashing is shaped on the roofing.
  • the tape may be a separate element, in this case the two adhesive layers of which are covered with a protective tape.
  • the proposed solution provides an installation solution for a roof mounted flashing that is more effective and efficient than any previous.
  • the tape easily adapts to the shape of the surface to which it is attached. Thanks to the cross-linked construction of the butyl carrier, at higher temperatures the polymeric mesh keeps the butyl in a compact form, ensuring it does not melt away over the roof.
  • the use of at least one adhesive layer made of acrylic adhesive increases the tape's adhesion to the flashing element and to the surface to which the element is attached, since crossed linked butyl is characterised in lower adhesive properties than no crossed linked butyl.
  • the flashing according to the solution is made up of an upper element 1, a bottom element 2, and two side elements 3.
  • the flashing's bottom element comprising an apron 2', which is attached to the roofing surface by means of double-sided tape 4.
  • the double-sided tape 4 comprises an carrier 4' made of cross-linked butyl and comprises one outer acrylic adhesive layer 4" which secures the apron flashing 2' to the roofing.
  • the second side of the carrier 4' is arranged for securing the tape 4 to the underside of the apron 2'.
  • the double-sided tape 5 comprises a butyl carrier 5' and acrylic adhesive layers 5" mounted on two outer surfaces of the carrier.
  • One layer of acrylic adhesive serves to attach the apron to the roofing surface, while the second layer of acrylic adhesive serves to secure the tape to the underside of the apron.

Abstract

The subject of the invention is a flashing designed for sealing the connection of a roof penetrating structure, having a double-sided tape 4, 5 acting as a sealant and an attachment means for the components of the sealing flashing on a roof, whereas the tape has a layered structure with cross-linked butyl as a carrier 4', 5', and at least one adhesive layer 4", 5" is a layer of acrylic adhesive.

Description

  • The subject of an invention is a flashing for sealing a roof penetrating structure. Said flashing, comprises a double-sided tape, acting as a sealant and an attachment means for the components of the sealing flashing, particularly the flashing's apron to the roof. Said tape comprises a layered structure with butyl, preferably cross-linked butyl, as a carrier.
  • There is slready known a solution showing a flashing designed for sealing connection of a skylight type window with the roofing. Said flashing comprises an upper element adjoining an upper window frame member, two side elements adjoining a two side window frame members and a bottom element adjoining a bottom window frame member. The flashing's elements are connected together in an overlapping manner in accordance with the direction of the roof's incline. In cross-section, flashing elements are L-shaped with a vertical arm adjoining the wall of the corresponding window frame member, while the horizontal arm lies on the roofing. Apart from the already mentioned two arms, the flashing's bottom element also comprises an apron attached to its horizontal arm. Said apron is made of a lead or aluminium-and-plastic material and is moulded at the flashing's production stage by being bent into a pleated or sinusoidal shape. The apron is covered with strip of butyl protected with paper.
  • During installation of the apron, any excess of material, gathered in pleats or sinusoids is rolled out on the roofing so that it matches its shape. Then, after removing the protective paper from the adhesive tape of formable butyl, the apron is glued to the roofing. Butyl fills in the pleats of the apron, ensuring that it sits tight against the roof tiles.
  • There are also known double-sided adhesive tapes made of a carrier of PET, PP, or PVC plastic sheet or a non-woven fabric comprising mostly of PP, whereas the adhesive materials are based on butyl resins.
  • The butyl accumulated in the material collected in the apron flashing's pleats does not limit unrolling of the apron flashing, i.e. does not "pull the pleats" back again, though this happens when using tapes whose carrier is PET, PP or PVC.
  • The butyl tape is configurated to prevent any uncontrolled peeling of the apron flashing off the roofing. However, butyl used hitherto, especially at high temperatures, "melts away" and its adhesive properties are not sufficient to ensure long-lasting and firm adhesion of the apron to the roof. The aim of this invention is an apron with a new two-sided tape that seals and affixes the flashing's apron on the surface of the roofing. Said two-sided tape is characterised by adhesive and sealing properties that are better than existing solutions by using cross-linked butyl with at least one adhesive layer made of an acrylic adhesive onto said cross-linked butyl.
  • The flashing according to the invention seals a roof penetrating structure, especially a skylight type window, which is made up of four window frame members joined together: an upper window frame member, a bottom window frame member and two side window frame members. The flashing forms a closed frame composed of the following elements: an upper element, a bottom element and two side elements, connected together in an overlapping manner. The flashing's elements adhere closely to these window frame members to form a closed frame around them. In cross-section, flashing elements are L-shaped with a vertical arm adjoining corresponding window frame member, while the horizontal arm lies under the roofing on a vapour-permeable flashing.
  • The flashing elements are attached by means of a vertical arm to the window frame members of the roof penetrating structure by means of fasteners, preferably screws.
  • In addition to the above mentioned two arms, the bottom element also comprises an apron, attached to this arm. In case of profiled roofing, the apron lies on the roofing and takes on its shape, closely adjoining said roofing. In case of flat roofing, e.g. tar paper, the apron constitutes an extension of the horizontal flashing arm, and is made of the same material as said arm and also lies on the surface of the roofing.
  • The two-sided tape is arranged for attaching the apron of the bottom element to the roofing. The double-sided tape comprises a layered structure with a carrier made of cross-linked butyl and at least one adhesive layers. At least one adhesive layer is arranged for covering one of the outer surfaces of said carrier, so that, when installed, this adhesive layer serves to attach the apron flashing to the roofing surface. The tape's second adhesive layer is arranged for connecting the tape with the underside of the apron. Present solution has been shown in two embodiments, wherein the tape comprises two adhesive layers which are a layer of acrylic adhesive or one adhesive layer of acrylic.
  • When the flashing is installed, the tape is not visible from the outside and its width and length is at most equal to the width and length of the apron flashing to which it is attached. The length is defined as the apron flashing's longest dimension, while the width is the dimension perpendicular to the length dimension.
  • In the flashing supplied state, the double-sided tape can be glued to the apron by means of one adhesive layer, whereas the second adhesive layer is then covered with a protective tape that is removed immediately before the apron flashing is shaped on the roofing. Also in the flashing supplied state, the tape may be a separate element, in this case the two adhesive layers of which are covered with a protective tape.
  • The proposed solution provides an installation solution for a roof mounted flashing that is more effective and efficient than any previous. The tape easily adapts to the shape of the surface to which it is attached. Thanks to the cross-linked construction of the butyl carrier, at higher temperatures the polymeric mesh keeps the butyl in a compact form, ensuring it does not melt away over the roof. In turn, the use of at least one adhesive layer made of acrylic adhesive increases the tape's adhesion to the flashing element and to the surface to which the element is attached, since crossed linked butyl is characterised in lower adhesive properties than no crossed linked butyl.
  • The invention is presented in the drawings, wherein:
    • Figure 1 presents a skylight type window in a roof with the lower flashing element prior to attaching the apron to the roofing surface,
    • Figure 2 presents a skylight type window in a roof with the sealing flashing after attaching the apron to the roofing surface,
    • Figure 3 shows a cross-section of the double-sided tape according to the first embodiment,
    • Figure 4 shows a cross section of the double-sided tape according to the second embodiment.
    Embodiment 1
  • The flashing according to the solution is made up of an upper element 1, a bottom element 2, and two side elements 3. The flashing's bottom element comprising an apron 2', which is attached to the roofing surface by means of double-sided tape 4. The double-sided tape 4 comprises an carrier 4' made of cross-linked butyl and comprises one outer acrylic adhesive layer 4" which secures the apron flashing 2' to the roofing. The second side of the carrier 4' is arranged for securing the tape 4 to the underside of the apron 2'.
    • Embodiment 2
  • In the second embodiment of the flashing, the double-sided tape 5 comprises a butyl carrier 5' and acrylic adhesive layers 5" mounted on two outer surfaces of the carrier. One layer of acrylic adhesive serves to attach the apron to the roofing surface, while the second layer of acrylic adhesive serves to secure the tape to the underside of the apron.

Claims (7)

  1. A sealing flashing arranged for sealing connection of a roof penetrating structure with a roofing, which comprising an upper element (1), a bottom element (2) joined together in a shape of closed frame by two side elements (3), where flashing elements are L-shaped in cross-section, such that the vertical arm is arranget to adjoin the corresponding wall of the roof penetrating structure, while the horizontal arm of the upper and two side elements are arranged to lie under the layer of the roofing but on the roof's vapour-permeable flashing, and the flashing's bottom element (2) is equipped with an apron (2') configurated to lie on the surface of the roofing, characterized in that the apron (2') comprises a double-sided tape (4) which comprising a layered structure made up of a carrier (4', 5') and at least one adhesive layer (4", 5"), while the carrier (4', 5') is a layer of cross-linked butyl, and at least one adhesive layer (4", 5") covers the outer surface of the carrier (4', 5'), so that when installed, this adhesive layer (4", 5") is arranged to attach the apron (2') to the roofing.
  2. The sealing flashing according to claim 1, characterized in that one adhesive layer (4", 5") of the tape (4, 5) is made of acrylic adhesive.
  3. The sealing flashing according to claim 1 or 2, characterized in that the two adhesive layers (5") are made of acrylic adhesive.
  4. The sealing flashing according to claim 1 or 2 or 3, characterized in that the second adhesive layer (4', 5") is attached to the outer surface of the carrier and is arranged for connecting the tape with the underside of the apron (2') flashing.
  5. The sealing flashing according to claim 1 or 2 or 3 or 4 characterized in that the tape (4, 5) has a width not greater than the width of the apron (2') flashing to which it is attached.
  6. The sealing flashing according to claim 1 or 2 or 3 or 4, characterized in that the length of the tape (4) is at most equal to the length of the apron (2') flashing to which it is attached.
  7. The sealing flashing according to claim 1, characterized in that the tape in supplied flashing state features a tape protecting at least its one adhesive layer.
EP17200244.6A 2016-11-21 2017-11-07 Sealing flashing Withdrawn EP3323957A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL125780U PL125780U1 (en) 2016-11-21 2016-11-21 Sealing flange with two-sided tape

Publications (1)

Publication Number Publication Date
EP3323957A1 true EP3323957A1 (en) 2018-05-23

Family

ID=60269668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17200244.6A Withdrawn EP3323957A1 (en) 2016-11-21 2017-11-07 Sealing flashing

Country Status (3)

Country Link
EP (1) EP3323957A1 (en)
DE (1) DE202017007145U1 (en)
PL (1) PL125780U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3964665A1 (en) * 2020-09-03 2022-03-09 VKR Holding A/S Flashing assembly and associated method
EP3964664A1 (en) * 2020-09-03 2022-03-09 VKR Holding A/S Method of mounting a flashing assembly and associated flashing assembly
US11592197B2 (en) 2018-09-28 2023-02-28 Solatube International, Inc. Bottom-mounted whole house fan assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001065029A1 (en) * 2000-02-29 2001-09-07 Vkr Holding A/S Laminated plate-shaped roof flashing material
WO2002028635A1 (en) * 2000-09-13 2002-04-11 Meier Poul Ernst Plate-shaped cover material
EP2447438A2 (en) * 2010-10-29 2012-05-02 Fakro PP Spolka Z O.O. Flashing with a fixing fastener, sealing the connection of the roofing to a roof-penetrating structure and a snap joint joining the flashing members
EP2749707A1 (en) * 2012-12-27 2014-07-02 VKR Holding A/S A skirt member for use in a flashing for a roof penetrating structure and use of a skirt member in flashing a roof window mounted in an inclined roof
EP3015617A1 (en) * 2014-10-30 2016-05-04 FAKRO PP Sp. z o.o. Flashing and flashing assembly method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001065029A1 (en) * 2000-02-29 2001-09-07 Vkr Holding A/S Laminated plate-shaped roof flashing material
WO2002028635A1 (en) * 2000-09-13 2002-04-11 Meier Poul Ernst Plate-shaped cover material
EP2447438A2 (en) * 2010-10-29 2012-05-02 Fakro PP Spolka Z O.O. Flashing with a fixing fastener, sealing the connection of the roofing to a roof-penetrating structure and a snap joint joining the flashing members
EP2749707A1 (en) * 2012-12-27 2014-07-02 VKR Holding A/S A skirt member for use in a flashing for a roof penetrating structure and use of a skirt member in flashing a roof window mounted in an inclined roof
EP3015617A1 (en) * 2014-10-30 2016-05-04 FAKRO PP Sp. z o.o. Flashing and flashing assembly method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HENKEL: "The Design Guide for Bonding Rubber and Thermoplastic Elastomer - Volume 3", 2009, pages 1 - 78, XP055459505, Retrieved from the Internet <URL:http://na.henkel-adhesives.com/us/content_data/392597_Rubber_and_Thermoplastic_Elastomers.pdf> [retrieved on 20180314] *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11592197B2 (en) 2018-09-28 2023-02-28 Solatube International, Inc. Bottom-mounted whole house fan assembly
EP3964665A1 (en) * 2020-09-03 2022-03-09 VKR Holding A/S Flashing assembly and associated method
EP3964664A1 (en) * 2020-09-03 2022-03-09 VKR Holding A/S Method of mounting a flashing assembly and associated flashing assembly

Also Published As

Publication number Publication date
DE202017007145U1 (en) 2019-09-16
PL125780U1 (en) 2018-06-04

Similar Documents

Publication Publication Date Title
US5251411A (en) Roof edge anchoring devices for building structures
US5092086A (en) Gutter shield assembly
EP3323957A1 (en) Sealing flashing
US7022631B2 (en) Sealing tape
JP2728701B2 (en) Sealing strip used to finish the roof ridge
EP2937488B1 (en) A skirt member for use in a flashing for a roof penetrating structure and use of a skirt member in flashing a roof window mounted in an inclined roof
US7527554B2 (en) Rollable roof ridge and ventilation element
US20170259543A1 (en) Adhesive waterproof tape system for roofing and flashing
US20070193126A1 (en) Apparatus and method for door and window side flashing
US9945124B2 (en) Shingle underlayment system including a built-in drip edge
US10801206B2 (en) Multi-part underlayment for building envelope details
US20140190099A1 (en) Sill pan membrane
US20160186483A1 (en) Draft stopping seal
SI1953306T2 (en) A multilayer roofing element and a method for manufacturing the same
EA037873B1 (en) Flashing kit including a sealing member for use between a flashing member and a roofing material, and method for weather proofing the joint between a roof of a building and a roof penetrating structure
US20200392735A1 (en) Multi-part underlayment for building envelope details
EP3822424B1 (en) Roof edge
KR101553296B1 (en) Waterproofing assembly containing velcro waterproof sheeets and method for waterproofing surface using the same
PL72010Y1 (en) Gutter fitting
JP3145631U (en) Repair structure of asbestos slate roof
US20220205247A1 (en) Ice backing flashing system
DK181528B1 (en) Under-roof collar and method for sealing the joint between a skylight and a roof structure
GB2454499A (en) An assembly for mounting a roofing material on a building
JP2022167467A (en) Waterproofing member for window frame
JP4010506B2 (en) Joint structure and joint method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20180619

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

17Q First examination report despatched

Effective date: 20190313

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20190724