EP2090711B1 - Trapezoidal metal roofing sheet - Google Patents
Trapezoidal metal roofing sheet Download PDFInfo
- Publication number
- EP2090711B1 EP2090711B1 EP09075047.2A EP09075047A EP2090711B1 EP 2090711 B1 EP2090711 B1 EP 2090711B1 EP 09075047 A EP09075047 A EP 09075047A EP 2090711 B1 EP2090711 B1 EP 2090711B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flanges
- sheet
- roofing sheet
- roofing
- layers
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 title claims abstract description 8
- 239000010410 layer Substances 0.000 abstract 1
- 239000002356 single layer Substances 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
Images
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
Definitions
- 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.
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)
Abstract
Description
- 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 orUS 3 760 549 . - 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.
-
-
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 offigure 1 . -
Figure 3 is a portion of the roofing sheet offigure 1 during its manufacturing. - The
figures 1 and2 show a roofing sheet of metal which has a trapezoidal profile. It hasupper flanges 11, lower flanges 12 and intermediate webs (sides) 13,14. The webs have twosteps 15,16 serving as reinforcements. The upper flanges as well as the lower ones have twoside portions central groove 20, which serves as an additional reinforcement of the flanges. - 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.
- The roofing sheet is roll formed and
figure 3 shows a suitable intermediate step in a possible manufacturing process. At first, theside portions - 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)
- Trapezoidal metal roofing sheet with upper and lower flanges (11,12) and intermediate webs (13,14),
characterised in that at least portions (17,18) of the flanges comprise longitudinal folds in which the sheet is folded into three parallel superposed layers. - Roofing sheet according to claim 1, characterised in that the flanges (11,12) have a central portion (20) with a single sheet layer and on both sides thereof sheet in three layers.
- Roofing sheet according to claim 2, characterised in that the flanges (11,12) have a central groove in the central portion (20).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09075047T PL2090711T3 (en) | 2008-02-13 | 2009-02-03 | Trapezoidal metal roofing sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0800318A SE532580C2 (en) | 2008-02-13 | 2008-02-13 | Trap profiled roofing sheet |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0800318 Previously-Filed-Application | 2008-02-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2090711A1 EP2090711A1 (en) | 2009-08-19 |
EP2090711B1 true EP2090711B1 (en) | 2014-01-29 |
Family
ID=40809849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09075047.2A Active EP2090711B1 (en) | 2008-02-13 | 2009-02-03 | Trapezoidal metal roofing sheet |
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)
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 |
CA919883A (en) * | 1968-05-28 | 1973-01-30 | D. Elizalde Eduardo | Corrugated sheet elements |
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 |
-
2008
- 2008-02-13 SE SE0800318A patent/SE532580C2/en unknown
-
2009
- 2009-02-03 EP EP09075047.2A patent/EP2090711B1/en active Active
- 2009-02-03 PL PL09075047T patent/PL2090711T3/en unknown
- 2009-02-03 DK DK09075047.2T patent/DK2090711T5/en active
Also Published As
Publication number | Publication date |
---|---|
PL2090711T3 (en) | 2014-05-30 |
DK2090711T5 (en) | 2014-04-07 |
DK2090711T3 (en) | 2014-02-17 |
SE532580C2 (en) | 2010-02-23 |
EP2090711A1 (en) | 2009-08-19 |
SE0800318L (en) | 2009-08-14 |
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