EP0104096A2 - Construction de toits - Google Patents

Construction de toits Download PDF

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Publication number
EP0104096A2
EP0104096A2 EP83305616A EP83305616A EP0104096A2 EP 0104096 A2 EP0104096 A2 EP 0104096A2 EP 83305616 A EP83305616 A EP 83305616A EP 83305616 A EP83305616 A EP 83305616A EP 0104096 A2 EP0104096 A2 EP 0104096A2
Authority
EP
European Patent Office
Prior art keywords
peaks
valleys
flattened
sheet
lining
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
EP83305616A
Other languages
German (de)
English (en)
Other versions
EP0104096A3 (fr
Inventor
James Erle Andrews
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.)
Ayrshire Metal Products PLC
Original Assignee
Ayrshire Metal Products PLC
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 Ayrshire Metal Products PLC filed Critical Ayrshire Metal Products PLC
Publication of EP0104096A2 publication Critical patent/EP0104096A2/fr
Publication of EP0104096A3 publication Critical patent/EP0104096A3/fr
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/3601—Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer
    • E04D3/3602—The fastening means comprising elongated profiles installed in or on the insulation layer
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
    • E04D12/004—Battens
    • 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
    • E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1643—Insulation of the roof covering characterised by its integration in the roof structure the roof structure being formed by load bearing corrugated sheets, e.g. profiled sheet metal roofs
    • E04D13/165—Double skin roofs
    • 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
    • E04D13/17—Ventilation of roof coverings not otherwise provided for
    • E04D13/178—Ventilation of roof coverings not otherwise provided for on the eaves of the roof

Definitions

  • This invention relates to roof and wall constructions.
  • a known form of roof construction typically comprises the main structural members, transverse purlins, an outer cladding (weather) sheet and an inner lining sheet separated therefrom by a layer of thermal insulation.
  • trusses comprising steel rafters can be arranged to constitute main structural members at say 6 metres spacing, with rafters running parallel from the wall to the ridge. Across these are secured, at for example 2 meters spacing horizontal purlins which can be of a generalised Z or rectangular C shape. This form of structure is well known and of itself does not constitute the present invention.
  • lining sheets have been secured over the purlins, as an inner roof surface. Above the lining sheets is located a layer of thermal insulation, and above this is the outer (weather) skin of asbestos or metal sheeting, usually corrugated.
  • spacer bar In order to prevent the insulation from being crushed it is necessary to fasten a so-called "spacer" bar along the purlin, the lining sheet being located between the spacer bar and the purlin, and the cladding or weather layer being fastened to the top surface of the spacer bar.
  • This spacer bar is again conveniently of a generalised Z shape or rectangular C-shape.
  • the practice hitherto has been to break the metal-to-metal contact (causing the heat transfer path) by some form of thermally-insulating barrier.
  • thermally-insulating barrier Most commonly, separate polymer blocks, spaced along the purlin (above the lining sheet and just beneath the spacer bar) at say 300 mm. centres, have been used.
  • Another expedient is to locate a continuous polymer or rubber strip along the top of the spacer bar, just beneath the cladding layer.
  • a roof construction can be made using a metal-to-metal fastening with suitable modified spacer bars and lining sheets without the occurence of detrimental cold spots and cold lines, and with the lining sheet itself performing a support function.
  • the invention consists in a roof construction of the type in which an internal lining layer is fixed at the top of purlins by spacer elements themselves supporting the -external weather-resistant cladding layer so as to define a space for containing thermal insulation wherein the lining layer is shaped to define a number of like load-carrying flattened peaks and valleys and the spacer element is perforated to decrease its thermal conductivity and is attached directly as a metal-to-metal connection to both the weather-resistant cladding layer and the lining layer.
  • the spacer element can be a cold-rolled mild steel section with opposite directed parallel flanges separated by a web,at substantially 9.0° thereto, having a plurality of expanded longitudinal slits in the web.
  • the lining sheet can be a metal sheet possessing a number(from 6 to 15, usually from 3 to 7) of flattened ridges or peaks separated by a like number of complementary valleys extending along its length, the angle of the valley wall to the base being at least 40° e.g. 40 0- 70 0 or most preferably 40° - 50° so that perpendicular load-carrying strength is maximised.
  • the peaks and valleys are usually 50 - 100mm wide and the sheet usually from 0.35 to 0.5mm thick.
  • the invention also extends to such a sheet or such a spacer bar per se. Moreover, a roof containing such a structure as a primary or component part also falls within the ambit of the invention.
  • Purlins 1 are known per se as nestable and stackable cold-rolled steel purlins of a so-called "Zeta” as shown at 5. "Zed” and “Sigma sections may also be used.
  • Lining sheet 2 is an important feature of the present invention .and”is also shown in more detail in the cross-section of Figure 2. It comprises a plurality of like flat peaks 6 and valleys 7, the side walls 8 of which are preferably at 45°. In a typical sheet five peaks and flye valleys will be present. One side edge terminates (half-way) down a side wall 8 (at 8a), the other terminates (half-way) across a flattened peak 6, at 6a, although these proportions can be varied if desired.
  • the lining sheet 2 In contrast to the prior art lining sheet, and as can readily be seen from Figure 1, the lining sheet 2 must carry some load. Hence, the angle of the side walls should be sufficient to give crushing resistance (e.g. be from 40 0 to 70° and preferably from 40° to 50°) and the number of peaks and valleys, and their spacing also be adequate for this purpose. From 6 to 15 peaks plus valleys, each from 50 to 100mm wide in, for example 0.35 to 0.5mm cold-rolled mild steel is a preferred range. In the example given, each flat peak/valley floor is 80mm wide and the valley-to-peak outside thickness is 20mm.
  • the lining sheet can be differently decorated or coated on its two surfaces.
  • Spacer bar 3 is another important feature of the invention, and may be made,for example, by the slitting and expansion methods, combined with cold-rolling, as described in British Patent 1 352 568. It has a generalised-shaped section as at 9 (see also Figure 3) with a number of slit and transversely expanded orifices 10 in its web portion. The spacer bar 3 is secured to the top flange of purlin 1 by screws 11 which pass through and secure the lining sheet 2.
  • the spacer bar 3 is slit enough at 10 to affect its thermal conductivity significantly, but is still strong enough for its primary function of support. Moreover, it is supported on the numerous flattened peaks 6 of the lining sheet 11 (rather than on polymer insulation blocks resting upon a flat purlin-contacting face of the prior art lining sheet) which also provides suitable mechanical strength for the construction.
  • Weather or cladding sheet 4 of corrugated metal or asbestos tile is attached to spacer bar 3 in conventional fashion at 12.
  • the space between the inner surface of the weather sheet 4 and the outer surface of lining layer 2 is filled with suitable conventional thermal insulation'13.
  • Spacer bar 3 is typically from 40 to 100mm depth (e.g. 60mm) with a major upper flange 14 from 25 to 40mm wide (e.g. 35mm) and a minor lower flange 15 from 20 to 35mm wide (e.g. 25mm).
  • the pattern of expanded orifices can vary in detail, but usually exhibits a central line 16 of wider orifices and two lines 17 of like narrower orifices extending one to each side of the central line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
EP83305616A 1982-09-22 1983-09-22 Construction de toits Ceased EP0104096A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8226993 1982-09-22
GB8226993 1982-09-22

Publications (2)

Publication Number Publication Date
EP0104096A2 true EP0104096A2 (fr) 1984-03-28
EP0104096A3 EP0104096A3 (fr) 1984-08-01

Family

ID=10533090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83305616A Ceased EP0104096A3 (fr) 1982-09-22 1983-09-22 Construction de toits

Country Status (1)

Country Link
EP (1) EP0104096A3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146681A (en) * 1983-09-19 1985-04-24 Fargo Chuo Integrated roofing structure
GB2330592A (en) * 1997-10-16 1999-04-28 Coseley Panel Products Limited A thermally insulated cladding panel system
FR2962745A1 (fr) * 2010-07-13 2012-01-20 Noelle Environnement Perfectionnement aux dispositifs de fermeture et de ventilation du type closoir pour la rive inferieure d'une couverture de batiment

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB805978A (en) * 1955-11-12 1958-12-17 W S Malden Ltd Improvements relating to the roofs of buildings
DE1759446A1 (de) * 1968-05-02 1971-07-29 Toni Eisert Verbundtafeln aus Metall und Kunststoff
CA964941A (en) * 1970-04-30 1975-03-25 Hideyo Watanabe Method and apparatus for manufacturing expanded structural members and its product
DE2611893A1 (de) * 1976-03-20 1977-09-29 Elda Ag Plattenfoermiges bauelement
US4274239A (en) * 1976-09-03 1981-06-23 Carroll Research, Inc. Building structure
DE2721072C3 (de) * 1977-05-11 1980-02-14 Sag Siegener Ag, 5900 Siegen Dacheindeckung aus zwei auf Pfetten im Abstand übereinander verlegten Trapezblechlagen
GB2051910A (en) * 1979-06-27 1981-01-21 Cape Insulation Services Ltd Roofing
GB2062721B (en) * 1979-10-01 1984-08-30 Condor Int Ltd Roof cladding
GB2063961B (en) * 1979-12-01 1983-07-27 Robertson Co H H Cladding building structures

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146681A (en) * 1983-09-19 1985-04-24 Fargo Chuo Integrated roofing structure
GB2330592A (en) * 1997-10-16 1999-04-28 Coseley Panel Products Limited A thermally insulated cladding panel system
GB2330592B (en) * 1997-10-16 2001-07-18 Coseley Panel Products Ltd A cladding panel system
FR2962745A1 (fr) * 2010-07-13 2012-01-20 Noelle Environnement Perfectionnement aux dispositifs de fermeture et de ventilation du type closoir pour la rive inferieure d'une couverture de batiment

Also Published As

Publication number Publication date
EP0104096A3 (fr) 1984-08-01

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

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AK Designated contracting states

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Effective date: 19870330

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ANDREWS, JAMES ERLE