Roofing plate, a proofing strip for a roofing plate, and a method of producing a roofing plate

• US 4,754,589 A
• Filed: 01/13/1987
• Issued: 07/05/1988
• Est. Priority Date: 09/30/1983
• Status: Expired due to Fees

• Current Assignee: Dansk Eternit-Fabrik A/S
• Original Assignee: Dansk Eternit-Fabrik A/S
• Inventors: Leth, Verner
• Primary Examiner(s): Scherbel, David A.
• Assistant Examiner(s): CHILCOT, RICHARD E
• Application Number:
  US07/007,919
• Time in Patent Office: 539 Days
• Field of Search: 52/539, 52/546, 52/551, 52/394, 52/533, 52/538, 52/536, 52/95, 52/534, 49/475
• US Class Current: 52/538
• CPC Class Codes: B28B 11/04 for coating or applying engobing layersglazing, engobing C04B
• CPC Class Codes: B28B 19/00 Machines or methods for applying the material to surfaces to form a permanent layer thereon making shaped articles on mandrels B28B1/30; applying liquids or other fluent materials to surfaces in general B05C; glazing or engobing C04B
• CPC Class Codes: B28B 5/04 in moulds moved in succession past one or more shaping stations on turn-tables B28B5/06
• CPC Class Codes: E04D 1/04 of ceramics, glass or concrete, with or without reinforcement
• CPC Class Codes: E04D 1/2916 the fastening means taking hold directly on adjacent elements of the same row
• CPC Class Codes: E04D 1/36 Devices for sealing the spaces or joints between roof-covering elements sealing joints not restricted to roof-covering elements E04B1/68; channels at the intersection of roof surfaces E04D13/0445

Abstract

A roofing plate (10), such as a corrugated, interlocking tile, is at its upper side surface provided with a proofing strip (27) arranged extending across the corrugations of the roofing plate at the upper edge thereof. The proofing strip (27) is constituted by a strip of upright synthetic fibres, such as a combination of polyamide fibres of a length of 3 mm and of a length of 5 mm and of thickness of 0.05 mm (22 dtex). The strip (27) is adapted to provide a barrier when its is clamped between the upper side surface of the roofing plate and the lower side surface of an adjacent roofing plate, and the barrier permits the passage of air from the inside of a loft defined below the roofing plates and out and form the outside and into the loft and further permits the passage of water from the inside of the loft and out, and blocks the passage of water and dust form the outside and into the loft. A further proofing strip (29) may be arranged along one of the edges of the roofing plate extending along the corrugations thereof. The proofing strip (27) may be provided as a single component adapted to be arranged on the upper or lower side surface of a roofing plate prior to the arrangement of the roofing plate overlapping another roofing plate on the roof and may comprise a base layer having a glue layer and a slip paper, if desired. The proofing strip (27) may be applied to the roofing plate (10) in an electrostatical application process (Flock application) and retained in a glue layer of the roofing plate. (FIG. 1).

Claims

1. A corrugated interlocking tile roofing plate having opposite side surfaces and comprising proofing strip means on at least one of said surfaces and extending thereacross, for providing a substantially water impervious barrier while generally providing an air and humidity permiable passageway, said plate being adapted to be arranged on a roof partly overlapping and partly being overlapped by adjacent roofing plates, said roof defining an attic thereunder, and said proofing strip means including a strip of upright synthetic fibres located on said plate on regions thereof which are overlapped by adjacent plates, to provide a fibrous barrier between said side surface of said roofing plate and the opposite side surface of one of said adjacent roofing plates which permits the passage of air in and out of said attic and further permits the passage of humidity to escape to outside said loft but substantially blocks the passage of water and dust from the outside from coming into said attic when said strip of upright synthetic fibres is situated in abutment with said adjacent plate.

2. A roofing plate according to claim 1, said synthetic fibres having a free length of about 1-30 mm and a thickness of about 0.01-0.5 mm.

3. A roofing plate according to claim 2, said synthetic fibres having a free length of about 2-15 mm.

4. A roofing plate according to claim 3, said synthetic fibres having a free length of about 3-8 mm.

5. A roofing plate according to claim 2, said synthetic fibres having a thickness of about 0.05 mm.

6. A roofing plate according to claim 1, said synthetic fibres forming a maze pattern.

7. A roofing plate according to claim 1, said plate being of a substantially rectangular configuration having pairs of opposite edges constituting vertical and horizontal edges of said plate when said plate is arranged on said roof, and said proofing strip extending along one of said horizontal edges of said plate.

8. A roofing plate according to claim 7, said proofing strip being arranged on said side surface of said plate constituting the upper side surface when said plate is arranged on said roof.

9. A roofing plate according to claim 8, a further proofing strip being arranged extending along one of said vertical edges of said plate.

10. A roofing plate according to claim 7, said proofing strip being arranged on said side surface of said plate constituting the lower side surface when said plate is arranged on said roof.

11. A roofing plate according to claim 10, a further proofing strip being arranged extending along one of said vertical edges of said plate.

12. A roofing plate according to claim 1, including a first proofing strip being arranged on an upper side surface of said plate at its uppermost horizontal edge thereof, and a second proofing strip being arranged on a lower side surface of said plate at its lowermost horizontal edge thereof.

13. A proofing strip for use in connection with a corrugated interlocking tile roofing plate having opposite side surfaces and being adapted to be arranged on a roof partly overlapping and partly being overlapped by adjacent roofing plates, said roof defining an attic thereunder, and said proofing strip comprising means for substantially blocking passage of water while permitting passage of air and humidity, said means including a base layer and a strip of synthetic fibres located on said plate in a region which is overlapped by adjacent plates, said fibres standing upright from said base layer to provide a barrier which permits the passage of air in and out of said attic and further permits the passage of humildity from the inside to escape said attic but substantially blocks the passage of water and dust from the outside from coming into the attic when said proofing strip is clamped between said opposite said surfaces of adjacent roofing plates.

14. A proofing strip according to claim 13, said synthetic fibres having a free length of about 1-30 mm and a thickness of about 0.01-0.5 mm.

15. A proofing strip according to claim 14, said synthetic fibres having a free length of about 2-15 mm.

16. A proofing strip according to claim 15, said synthetic fibres having a free length of about 3-8 mm.

17. A proofing strip according to claim 14, said synthetic fibres having a thickness of about 0.05 mm.

18. A proofing strip according to claim 13, said synthetic fibres forming a maze pattern.