DK2090711T3 - METAL ROOF PLATE WITH TRAPEZEFUL PROFILE - Google Patents

METAL ROOF PLATE WITH TRAPEZEFUL PROFILE Download PDF

Info

Publication number
DK2090711T3
DK2090711T3 DK09075047.2T DK09075047T DK2090711T3 DK 2090711 T3 DK2090711 T3 DK 2090711T3 DK 09075047 T DK09075047 T DK 09075047T DK 2090711 T3 DK2090711 T3 DK 2090711T3
Authority
DK
Denmark
Prior art keywords
flanges
profile
roof plate
trapezeful
metal roof
Prior art date
Application number
DK09075047.2T
Other languages
Danish (da)
Other versions
DK2090711T5 (en
Inventor
Anders Eriksson
Original Assignee
Plannja Ab
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 Plannja Ab filed Critical Plannja Ab
Publication of DK2090711T3 publication Critical patent/DK2090711T3/en
Application granted granted Critical
Publication of DK2090711T5 publication Critical patent/DK2090711T5/en

Links

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
    • E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
    • E04D3/30—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Description

Description [0001] This invention refers to a trapezoidal metal roofing sheet with upper and lower flanges and intermediate webs. This type of roofing is known for example from US 3 660 482 or US 3 760 549.
Object of invention and brief description of the invention [0002] It is an object of the invention to provide for a more efficient utilisation of the material. This is possible when at least portions of the flanges have sheet in three layers, which makes it possible to use thinner sheet material. The invention is defined by the claims.
Brief description of the drawings [0003]
Figure 1 is a transverse section of a roofing sheet of metal shown as an example of the invention.
Figure 2 is an enlargement of a portion of figure 1.
Figure 3 is a portion of the roofing sheet of figure 1 during its manufacturing.
Description of the illustrated example of the invention [0004] The figures 1 and 2 show a roofing sheet of metal which has a trapezoidal profile. It has upper flanges 11, lower flanges 12 and intermediate webs (sides) 13,14. The webs have two steps 15,16 serving as reinforcements. The upper flanges as well as the lower ones have two side portions 17,18 where the sheet is folded into three layers. These portions with three layers reinforce the flanges. The flanges may have a central groove 20, which serves as an additional reinforcement of the flanges.
[0005] Thinner sheet can be used due to the reinforcement of the flanges, which reduces the roofing weight per square meter. This reduces the cost and makes the roofing operation easier.
[0006] The roofing sheet is roll formed and figure 3 shows a suitable intermediate step in a possible manufacturing process. At first, the side portions 17,18 are folded as shown before the roll forming continues to shape the entire profile. The roll forming may be carried out by first starting the shaping of a central profile and then sequentially starting the shaping of new side portions and new profiles from the central profile.
[0007] The reinforcement of the flanges may have other appearances although the illustrated design is preferred. It is not necessary to have the central groove 20 and it is not necessary to have two narrow reinforcements on each flange, but a single centrally placed wider reinforcement can be used. Reinforcement in the form of three layers is preferred but more layers can be used. It is also possible to reinforce some but not all of the flanges.

Claims (3)

1. Trapezformet metaltagplade med øvre og nedre flanger (11,12) og mellemstykker (13,14), kendetegnet ved, at i det mindste dele (17,18) af flangerne omfatter langsgående folder, hvori pladen er foldet i tre parallelle, overliggende lag.Trapezoidal metal roof plate with upper and lower flanges (11,12) and spacers (13,14), characterized in that at least parts (17,18) comprise longitudinal folds in which the plate is folded into three parallel, overlying layer. 2. Tagplade ifølge krav 1, kendetegnet ved, at flangerne (11,12) har et midterafsnit (20) med et enkelt pladelag og på begge sider deraf har en plade i tre lag.Roof plate according to claim 1, characterized in that the flanges (11, 12) have a central section (20) with a single plate layer and on both sides thereof a plate in three layers. 3. Tagplade ifølge krav 2, kendetegnet ved, at flangerne (11,12) har en midterrille i midterafsnittet.Roof plate according to claim 2, characterized in that the flanges (11, 12) have a center groove in the middle section.
DK09075047.2T 2008-02-13 2009-02-03 Trapezoidal metal roof plate DK2090711T5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0800318A SE532580C2 (en) 2008-02-13 2008-02-13 Trap profiled roofing sheet

Publications (2)

Publication Number Publication Date
DK2090711T3 true DK2090711T3 (en) 2014-02-17
DK2090711T5 DK2090711T5 (en) 2014-04-07

Family

ID=40809849

Family Applications (1)

Application Number Title Priority Date Filing Date
DK09075047.2T DK2090711T5 (en) 2008-02-13 2009-02-03 Trapezoidal metal roof plate

Country Status (4)

Country Link
EP (1) EP2090711B1 (en)
DK (1) DK2090711T5 (en)
PL (1) PL2090711T3 (en)
SE (1) SE532580C2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB978142A (en) * 1963-02-22 1964-12-16 Ircom S P A Improvements in or relating to structural members
IL32230A (en) * 1968-05-28 1972-02-29 Elizalde E Improved corrugated sheet element for divisionary structures,divisionary structures comprising such elements,and clamping plates for such elements and/or structures
DE2057372A1 (en) * 1970-11-21 1972-07-06 Silberkuhl Wilhelm Johannes Di Flat surface structure
US4453364A (en) * 1980-05-27 1984-06-12 Ting Raymond M L Corrugated steel decking section

Also Published As

Publication number Publication date
PL2090711T3 (en) 2014-05-30
EP2090711A1 (en) 2009-08-19
EP2090711B1 (en) 2014-01-29
SE0800318L (en) 2009-08-14
DK2090711T5 (en) 2014-04-07
SE532580C2 (en) 2010-02-23

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