WO2024259210A1 - Plaque de toiture résistante aux intempéries - Google Patents

Plaque de toiture résistante aux intempéries Download PDF

Info

Publication number
WO2024259210A1
WO2024259210A1 PCT/US2024/033975 US2024033975W WO2024259210A1 WO 2024259210 A1 WO2024259210 A1 WO 2024259210A1 US 2024033975 W US2024033975 W US 2024033975W WO 2024259210 A1 WO2024259210 A1 WO 2024259210A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
roofing
roofing plate
section
rounded
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.)
Ceased
Application number
PCT/US2024/033975
Other languages
English (en)
Inventor
Liam DONOVAN
John Courtney
Colin J. GRISWOLD
Cecile MEJEAN
Michael Lepage
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.)
OMG Building Products LLC
Original Assignee
OMG Inc
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 OMG Inc filed Critical OMG Inc
Publication of WO2024259210A1 publication Critical patent/WO2024259210A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
    • E04D1/12—Roofing elements shaped as plain tiles or shingles, i.e. with flat outer surface
    • E04D1/22—Roofing elements shaped as plain tiles or shingles, i.e. with flat outer surface of specified materials not covered by any one of groups E04D1/14 - E04D1/205, or of combinations of materials, where at least one is not covered by any one of groups E04D1/14 - E04D1/205
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
    • E04D1/34—Fastenings for attaching roof-covering elements to the supporting elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/144—Mechanical fastening means
    • E04D5/145—Discrete fastening means, e.g. discs or clips
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
    • E04D1/34—Fastenings for attaching roof-covering elements to the supporting elements
    • E04D2001/3408—Fastenings for attaching roof-covering elements to the supporting elements characterised by the fastener type or material

Definitions

  • This disclosure relates generally to roofing plates which secure a substrate to an underlying decking structure via a fastener. More particularly, this application relates to a roofing plate with a unique form configured to withstand severe weather events.
  • a fluid impervious membrane substrate and/or coverboard is secured by a plurality of plates to a decking structure.
  • the decking structure is typically a substructure of sheet steel, concrete or wood. Some decking structures take a corrugated form with peaks and valleys. Additionally, in some roofing assemblies, one or more softer layers, such as insulation, are positioned beneath the membrane.
  • the disclosed embodiments are intended primarily for use with flat hard substructures, commonly referred to in the field as coverboard.
  • Fasteners are driven through a central recessed bore in the plate to secure the plate and the underlying layer(s) to the decking structure.
  • an overlying portion 74 of an adjacent membrane is placed over the plate and fastener and sealed around the outer edges of the plate to provide additional waterproofing.
  • the overlying membrane section may be sealed to the underlying membrane around the plate via one or both of heat welding and adhesive.
  • the particular plate disclosed herein is configured for use with hard flat roof surfaces, as opposed to softer surfaces and fleece back systems. The plates must combine strong uplift protection, weatherproofing and impact resistance.
  • Such known plates for use with hard flat roofing surfaces heretofore have been formed from sheets of metal with various ridges, undulations, corrugations and teeth.
  • a roofing plate includes a solid body defining a fastener opening from a top surface to a bottom surface.
  • a roofing assembly has a roofing substructure, a flat roofing element above the roofing substructure, a roofing plate above the roofing element, a fluid impermeable membrane above the roofing plate, a fastener extending through a bore in the roofing plate, through the roofing element, and embedded into at least a portion of the roofing substructure to fix the roofing plate in place.
  • the roofing plate has no vertices.
  • a roofing plate includes a polymer body defining a fastener opening from a top surface to a bottom surface. The fastener opening has an upper counterbore section with a diameter greater than a diameter OMG/351/PC 2 of a lower primary bore section.
  • the solid body defines an outer periphery with rounded edges.
  • the counterbore section has a top with a rounded upper periphery and a bottom inner edge that is rounded.
  • An IBS area defined as an area of the roofing plate that contacts a 2-inch diameter coaxial sphere (impact surface) is within an approximate range of 0.100 in 2 to 0.400 in 2 .
  • Figure 1 shows a side cross sectional view of an embodiment of the disclosed weather resistant roofing plate
  • Figure 2 shows a side cross sectional view of the roofing plate being contacted by a projectile
  • Figure 3 shows a side cross sectional view of the roofing plate installed on a roof fixing a membrane in place
  • Figure 4 shows a perspective view of an embodiment of the disclosed roofing plate
  • Figures 5A and 5B are the enlarged cross-sectional views of the roofing plate installation of Figure 2 focusing on the counterbore section
  • Figure 6A is a side elevation view of a preferred embodiment of the disclosed roofing plate and an enlarged view of a portion thereof, including exemplary dimensions
  • Figure 6B is a side cross sectional view of the preferred embodiment of the roofing plate of Figure 6A and an enlarged view of a portion thereof, including exemplary dimensions
  • Figure 6C shows a bottom elevation and bottom perspective view of the preferred embodiment of
  • an embodiment of the plate 10 includes a solid body 12 with a round shape.
  • the depicted preferred embodiment is a circular plate, however other shapes without pointed edges or vertices between surfaces or edges may be employed, such as ovular or quasi-polygonal with rounded edges and/or corners.
  • the depicted plate 10 can be said to have a quasi- frusto-conical shape with rounded or “soft” vertices/edges.
  • the plate 10 most generally includes a body 12 with a fastener opening 14 extending through from a top surface 26 to bottom surface 22 of the body.
  • the depicted preferred embodiment has a fastener opening that comprises a primary bore 20 and a counterbore 21.
  • OMG/351/PC 5 In some embodiments, in some embodiments, the bottom surface may include a plurality of ribs 30 that extend radially from a central hub section 32 to an outer annular section 34.
  • the ribs 30, hub 32 and outer annular section 34 are preferably coplanar and collectively define a solid, flat primary bottom surface 22.
  • a plurality of teeth 24 extend downward from portions of the primary bottom surface 22.
  • the teeth 24 are arranged on the primary surface in a circumferentially-offset pattern, wherein inner teeth on the central hub 32 are not co-radial with outer teeth on the annular section 34. This relative arrangement has been shown to improve rip resistance in a roofing installation. In practice, the teeth 24 grip the roof surface and the primary surface 22 sits flat atop the membrane or coverboard.
  • the flat primary surface 22 formed by the combination of the coplanar hub 32, ribs 30 and outer annular section 34 in combination with the quasi-random pattern of teeth 24 has been shown to improve strength and resistance to uplift forces.
  • Other embodiments of the plate exist wherein teeth are not present. Such a toothless embodiment is especially useful in affixing a coverboard over a softer layer, such as insulation, with a membrane installed above. Additionally, some embodiments include a solid flat bottom surface in lieu of the hub/ribs/annular section configuration shown in Figure 6C.
  • the primary bottom surface is a solid unitary surface without the open areas 36 that define the hub, ribs and outer annular section.
  • the outer shape of the plate 10 is defined by a peripheral edge 16 that has a rounded contour between the top surface 26 and bottom surface 22.
  • the rounded contour extends about the entire outer periphery of the plate such that when the plate 10 is installed on a flat roof, there are no vertices or pointed edges along the outer edge of the plate, and no vertices or pointed edges formed at the plate/roofing surface interface.
  • This characteristic and concept can be best understood with reference to Figure 3 showing an exemplary installation on a flat roofing surface.
  • the disclosed embodiments are often described OMG/351/PC 6 herein as being installed on a “roof” or a “roofing surface” generally depicted as reference numeral 70.
  • the plate 10 defines a fastener opening 14 with a primary bore section 20 having a first diameter D1 and counterbore section 21 having a second diameter D2 greater than the first diameter.
  • the counterbore section has a curved inner bottom edge 76 between the cylindrical side wall and the bottom wall of the counterbore section with a radius of curvature F.
  • the outer (upper) periphery 18 of the counterbore 21 has a similar curved contour about entire periphery such that there are no exposed vertices or other intersecting geometry or surfaces which may for sharp edges.
  • the absence of vertices described herein contributes to the resilience and “weather proofing” capability of the plate in that it reduces instances of punctures to the overlying membrane 74 caused by impact from projectiles like hail.
  • Certain elements within the plate 10 contribute considerably to the impact resistance of the plate, especially from larger projectiles at stronger impact forces. Dimensions of certain elements within the plate 10 are carefully configured to provide a plate that combines high resistance to impact and uplift forces.
  • IBS area is a calculated measurement that refers to the area of contact between a 2-inch sphere and the top of the plate when OMG/351/PC 7 concentric (coaxial) “bullseye” contact is made. With reference to Figures 9-20, the IBS area is shown as reference numeral 55 (255 in the embodiment of Figure 18).
  • IBS area refers to the surface area of a ring-shaped projection circumscribing the central fastener opening 14.
  • the IBS is an area on the top surface of the plate where a 2-inch spherical projectile (i.e., an ice ball) would be at the highest risk of causing membrane penetration when making impact.
  • a 2-inch spherical projectile i.e., an ice ball
  • a direct bullseye is defined as the condition wherein the 2-inch spherical projectile makes impact with the plate directly at its center on the counterbore (i.e., the plate and ice ball are concentric or coaxial), and is understood as one of the conditions most likely to cause membrane puncture.
  • the plate must protect against the head penetrating the membrane when a 2-inch spherical projectile hits a direct bullseye. Bullseye impact exploits a vulnerability of the fastener head possibly penetrating the membrane because the alignment allows the projectile to get as close to the fastener as possible without breaking the plate. Additionally, the plate must protect against a “hole punch” type of penetration through the membrane when direct bullseye impact occurs.
  • IBS area 55 is formed by the following steps: OMG/351/PC 8 1.
  • a Projection Ring 60 is a 2-dimensional ring determined on a plane 62 above the plate 10 parallel to the flat bottom 22, i.e., perpendicular to a central axis of the plate, which is thereafter used for projecting the IBS onto the 3-dimensional plate surface.
  • a contact ring 66 is defined on the plane. The contact ring 66 is concentric with the center hole 14 of the plate 10 and a circle of a tangent contact circle formed when a 2-inch sphere hits the plate bullseye.
  • the 2-inch contact ring 66 is shown in Figures 12 and 14. 3.
  • the outer edge 68 of the Projection Ring 60 has a diameter DO equal to the sum of the diameter DC of the 2-inch contact ring 66 and half the radius of curvature RC of the 2-inch contact ring 66. 4.
  • the inner edge 70 of the Projection Ring 60 has a diameter DI equal to the diameter DC of the 2-inch contact ring 66 minus half the radius of curvature RC of the 2-inch contact circle in most cases. If the inner edge 70 extends past the curved surface 18 of the plate about the counterbore 21 and into the projection of the cylindrical counterbore wall 28, then only the portion up to the counterbore wall is used as the position of the inner edge 70. 5.
  • the 2-dimensional Projection Ring 60 is defined between the outer edge 68 and inner edge 70 on the plane 62, and is thereafter projected onto the curved surface 18 of the plate 10, thereby forming the IBS to determine the IBS area 55.
  • the radius of curvature is measured on the plate at the tangent point created when the 2-inch sphere makes concentric bullseye contact with the plate, which is depicted in Figures 13-14.
  • Standoff distance C is another important factor in ensuring weather resistance. “Standoff distance” C is defined as the distance between the outer surface of a 2” diameter projectile (hail ball) and head of an installed fastener, and preferably is large enough to prevent contact between the projectile.
  • the radius of curvature F of the counterbore inner edge 76 is another key factor in performance of the plate 10 as it has shown to contribute substantially to uplift resistance of a plate.
  • sample roofing plates with either or both of a larger overall diameter or smaller radius F of counterbore bore inner edge 76 were shown to fail uplift testing due, in part, to an increase in bending moment.
  • the plate has key dimensions similar to those provided in Table 1, however, this is not limiting provided that the IBS area of a plate is within an acceptable range.
  • Table 1 Feature Preferred Preferred Contribution dimension (in.) range (in.)
  • the preferred dimension values in Table 1 refer to a specific preferred embodiment that has shown resistance to puncture and wind uplift, while maintaining an acceptable aesthetic and installation efficiency (i.e., not too big or tall in the eye of installers, easy to install). Understandably, other dimensions, even some outside of the preferred ranges of Table 1, can theoretically be used with acceptable impact resistance and uplift performance, but they may be less aesthetically pleasing, cumbersome to install or impart another drawback.
  • the most important metric/dimension in preventing puncture via projectile impact is IBS area (H), which is necessarily dependent on 2-inch contact diameter (E), counterbore radius (F), and radius of curvature at impact surface (G).
  • IBS area H
  • E 2-inch contact diameter
  • F counterbore radius
  • G radius of curvature at impact surface
  • the plate is molded from a polymer with rubber component.
  • the plate 10 is formed from a nylon resin.
  • the polymer is fiber reinforced.
  • the polymer is non-fiber reinforced.
  • the plate may be formed from an amide material.
  • the plate is formed from a polyamide.
  • the IBS area of the curved top OMG/351/PC 12 edge about the fastener opening 14 (or counterbore 21) is above 0.108 in 2 in order to provide the requisite impact resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

Une plaque de toiture a un corps avec un trou de fixation s'étendant d'une partie supérieure à une partie inférieure. Le corps définit une périphérie externe avec des bords arrondis et le bord supérieur du trou de fixation présente des bords arrondis. La plaque peut être moulée à partir d'un matériau polymère. La plaque présente une surface d'impact et des bords arrondis suffisamment grands pour protéger contre la perforation de la membrane par un projectile dans des conditions de grêle très sévères ou similaires.
PCT/US2024/033975 2023-06-14 2024-06-14 Plaque de toiture résistante aux intempéries Ceased WO2024259210A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202363508123P 2023-06-14 2023-06-14
US63/508,123 2023-06-14
US202363615866P 2023-12-29 2023-12-29
US63/615,866 2023-12-29

Publications (1)

Publication Number Publication Date
WO2024259210A1 true WO2024259210A1 (fr) 2024-12-19

Family

ID=93844990

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2024/033975 Ceased WO2024259210A1 (fr) 2023-06-14 2024-06-14 Plaque de toiture résistante aux intempéries

Country Status (2)

Country Link
US (1) US20240417975A1 (fr)
WO (1) WO2024259210A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380413A (en) * 1980-11-03 1983-04-19 Illinois Tool Works Inc. Load-distributive washer for use with compressible material
US4726164A (en) * 1987-03-16 1988-02-23 Elco Industries, Inc. Fastener assembly for a roof membrane
US6233889B1 (en) * 2000-04-14 2001-05-22 Construction Fasteners, Inc. Ventilated roof membrane plate and method of installing membrane roof utilizing same
JP2004100244A (ja) * 2002-09-09 2004-04-02 Japan Power Fastening Co Ltd シート類の押さえ固定用ワッシャー
US20150292547A1 (en) * 2014-04-15 2015-10-15 Duro-Last, Inc. Injection-molded roofing membrane plate

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102239A (en) * 1977-02-17 1978-07-25 Dallas Charles M Washer
US4787188A (en) * 1986-01-02 1988-11-29 Engineered Construction Components Stress plate and method of using same for securing a roof membrane to a roof deck
DE3912699A1 (de) * 1989-04-18 1990-10-25 Duve Gmbh & Co Kg Vorrichtung zum befestigen einer abdichtungsbahn und einer von dieser ueberdeckten nachgiebigen zwischenschicht auf einer basis
DE4318965C2 (de) * 1993-06-08 1996-04-11 Hilti Ag Verfahren zum Setzen von Befestigungselementen
DE4342263C2 (de) * 1993-12-10 1995-11-30 Sfs Ind Holding Ag Großflächige Unterlegscheibe
DE9411956U1 (de) * 1994-07-23 1994-09-22 Harald Zahn GmbH, 69168 Wiesloch Trittsicheres Befestigungselement für Dämm- und Dichtungsmaterial auf Flachdächern
DE102011076967A1 (de) * 2011-06-06 2012-12-06 Hilti Aktiengesellschaft Befestigungsvorrichtung
US9631667B2 (en) * 2013-03-15 2017-04-25 Rodenhouse, Inc. Washer and combination washer and fastener system for building construction
US20230279662A1 (en) * 2022-03-07 2023-09-07 Bmic Llc Fastener systems for roof structures

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380413A (en) * 1980-11-03 1983-04-19 Illinois Tool Works Inc. Load-distributive washer for use with compressible material
US4726164A (en) * 1987-03-16 1988-02-23 Elco Industries, Inc. Fastener assembly for a roof membrane
US6233889B1 (en) * 2000-04-14 2001-05-22 Construction Fasteners, Inc. Ventilated roof membrane plate and method of installing membrane roof utilizing same
JP2004100244A (ja) * 2002-09-09 2004-04-02 Japan Power Fastening Co Ltd シート類の押さえ固定用ワッシャー
US20150292547A1 (en) * 2014-04-15 2015-10-15 Duro-Last, Inc. Injection-molded roofing membrane plate

Also Published As

Publication number Publication date
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