EP1999318A1 - Retaining rail for roofing membranes - Google Patents
Retaining rail for roofing membranesInfo
- Publication number
- EP1999318A1 EP1999318A1 EP07727109A EP07727109A EP1999318A1 EP 1999318 A1 EP1999318 A1 EP 1999318A1 EP 07727109 A EP07727109 A EP 07727109A EP 07727109 A EP07727109 A EP 07727109A EP 1999318 A1 EP1999318 A1 EP 1999318A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fold
- support
- retaining rail
- web
- rail
- 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims description 28
- 239000000463 material Substances 0.000 claims description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 2
- 239000008397 galvanized steel Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 20
- 238000004078 waterproofing Methods 0.000 description 10
- 230000006378 damage Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000012720 thermal barrier coating Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241000587161 Gomphocarpus Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- E04D5/141—Fastening means therefor characterised by the location of the fastening means
- E04D5/143—Fastening means therefor characterised by the location of the fastening means in the field of the flexible material
-
- 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
- E04D3/3603—Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer the fastening means being screws or nails
-
- 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
- E04D5/146—Linear fastening means, e.g. strips
Definitions
- the invention relates to a retaining rail for holding down roofing membranes in flat roofs, according to the preamble of the first claim.
- Flat roofs usually have a multi-layered structure and have essentially a supporting roof substructure, which in particular from a trapezoidal steel sheet, from stiffened wood panels or from steel respectively. Autoclaved aerated concrete can exist. Above this supporting roof substructure is usually a vapor barrier layer of bitumen, polymer bitumen or plastic. This vapor barrier layer is intended to delay or prevent the diffusion of water vapor into the thermal insulation and under the seal. On this vapor barrier layer is a thermal barrier coating, which may for example consist of mineral fiber fleece, polystyrene (PS), expanded polystyrene (EPS) or extruded polystyrene (XPS) and which in turn is covered with a roof skin.
- PS polystyrene
- EPS expanded polystyrene
- XPS extruded polystyrene
- This roof skin is usually made of several adjacent and welded together waterproofing membranes, which cover the roof watertight, ie protect it from penetrating water. These sealing membranes, resp.
- Protective films are usually made of plastic sheets with filling and Dyes provided plastics, such as PVC, PO, FPO or TPO.
- these waterproofing membranes must be additionally secured on the roof.
- these waterproofing membranes are glued to the thermal insulation or held on the roof with mechanical aids.
- a simple and commonly used method for keeping waterproofing membranes on the roof is to pour a 5 to 10 cm thick layer of gravel over the waterproofing membranes.
- this type of mechanical roof protection has the disadvantage that it is very weight intensive and relatively expensive, i. the advantages of a flat roof construction (light, cost-effective and walkable) are canceled out. In particular, sharp-edged pebbles can injure and damage the waterproofing membranes when the roof is used regularly as a walk-in area.
- disc or plate-shaped or band or rail-shaped elements for holding down the roofing membranes.
- Such elements are described for example in US-2005/0196253 or US-2004/0040243 and have openings for receiving fasteners, such as screws or nails on.
- the fastening means In order to be able to hold down the roof membranes in case of wind suction, the fastening means must extend transversely through all layers into the roof substructure. It goes without saying that caused by the fasteners breakthroughs in the roofing membranes must be sealed again.
- covers or strips are used, which are mounted on the disc or plate-shaped or band or rail-shaped elements for holding down the roofing membranes.
- the utility model DE 20 2005 006 231 U1 describes a rail-shaped component for holding down a sealing strip, wherein the longitudinal edge zones have wall-shaped deformations or folds.
- This has the advantage that the over the rail-shaped components mounted cover strips not directly on the heads of the Fix fasteners (screw or nail heads) and can be avoided so that these fasteners damage the roofing membrane cover and may cause leaks. This is especially true when entering the flat roof on these rail-shaped components is entered.
- Components or hold-down means with such wall-shaped deformations or folds prove to be particularly sure-footed.
- such wall-shaped deformations or folds have the advantage that they give the rail-shaped hold-down means increased bending stiffness in the longitudinal direction. During assembly, they reduce the risk of unintentional kinking and further damage to the sealing membrane.
- a rail for holding down a roofing membrane hereinafter also called retaining rail to create, which does not have the disadvantages of the known hold-down rails.
- a lightweight and firm holding rail with increased longitudinal stiffness to be created, which path movements and thus tears, resp. Prevents wear of the waterproofing membrane in the region of the fastening means and ensures watertight welding of the cover strip with the roof covering membrane by means of a welding string.
- a retaining rail with the features of claim 1 and in particular by a retaining rail, which has a cross-sectional profile with a central web and with lateral edge folds, wherein the web is provided with openings for the attachment of fasteners.
- each of the lateral edge folds forms at least one support-side shoulder and the web lies above the support plane spanned by these support-side shoulders. This has the consequence that the bridge does not rest on the roof covering and even in the assembled state this not or only slightly impress.
- This web arrangement ensures that the force exerted by the fastening means is transmitted to the support rail from the web to the edge folds and is not limited to the center.
- the support surface is reduced compared to conventional support rails and thus increases the contact pressure in the region of this support surface.
- the multiple folding leads to increased longitudinal stiffness and thus allows to reduce the number of required fasteners and the material thickness of the retaining rail.
- each of the lateral edge folds forms a plurality of support-side shoulders.
- this multiple folding leads to increased longitudinal rigidity and thus allows the number of fastening means required as well as the material thickness of the retaining rail to be further reduced.
- Fig. 1 a schematic representation of a holding rail of known type in
- FIG. 2 a perspective view of a flat roof known type in
- FIG. 3 a schematic representation of a mounted on a flat roof
- Retaining rail in cross section shows a schematic representation of a particularly advantageous retaining rail according to the invention in cross-section; 6 shows a schematic illustration of a retaining rail according to the invention mounted on a flat roof according to FIG. 5.
- Fig. 1 shows a holding rail 1 of known type in cross section.
- This retaining rail 1 has a web 2 and lateral edge folds 3, 3 '. In the following, by folding is meant any kind of deformation following any line.
- This retaining rail 1 is fastened to the roof substructure by means of suitable fastening means 10 - here for example with the aid of a screw 10 'and a washer 10 ".
- Fig. 2 shows a cross section through the structure of a flat roof 4 in a perspective view.
- This flat roof 4 comprises a roof substructure 5, which usually consists of a steel trapezoidal sheet, wooden panels or a steel resp. Aerated concrete exists.
- a roof substructure 5 On this roof substructure 5 is a vapor barrier 6 and a thermal insulation layer 7.
- a vapor barrier 6 On this roof substructure 5 is a vapor barrier 6 and a thermal insulation layer 7.
- Retaining rails 1 secure the sealing strips 8 from the wind suction forces and are anchored via fastening means (not shown) in the roof substructure.
- cover strips 9 are provided, which are welded to the sealing sheets 8 to ensure that no water can penetrate to the broken because of the fasteners points of the waterproofing membranes 8 in the otherwise waterproof laid flat roof 4.
- cover strips 9 are provided, which are welded to the sealing sheets 8 to ensure that no water can penetrate to the broken because of the fasteners points of the waterproofing membranes 8 in the otherwise waterproof
- FIG. 3 shows a mounted on a flat roof 4 support rail 1 of known type in a schematic manner.
- the retaining rail 1 is fastened here with a screw 10 'on the flat roof 4.
- Schematically illustrated is the conventional roof structure consisting of a roof substructure 5, a vapor barrier 6, a thermal barrier coating 7 and a waterproofing membrane 8.
- a cover strip 9 is attached, which is welded to the sealing strip 8.
- the screw 10 ' is guided through an opening in the retaining rail 1 and anchored in the roof substructure 5.
- the contact pressure of the retaining rail 1 acts on the roofing sheet 8 substantially along the center line of the retaining rail, that is, where the forces of the fastening means 10 attack.
- the support rail 1 has a web 13, openings 1 1 for receiving fasteners 10 and two meander-shaped edge folds 14, 14 'on.
- Each of the lateral edge folds 14, 14 ' forms a support-side Shoulder 21, 21 ', wherein the web 13 is above the support plane spanned by the support-side shoulders 21, 21', whereby a gap 20 between the web 13 and the support plane 26 is formed.
- Each of the two meander-shaped edge folds 14, 14 ' is folded such that the profile of this holding rail 1 starting from the web 13 has a first fold 15 leading to the support plane 26, which first fold 15 follows a second fold 16 leading away from the support plane 26 and a first bearing-side shoulder 21 forms, which follows a folding back to the web 13 19. It is understood that the ends 24, 24 'of the folded profile can be spaced apart from each other so that it can be committed without risk of injury to the cover strip 9.
- a folding according to the invention is characterized in that the first folding 15 directed towards the support plane 26 has a curvature of 30 ° -90 °, preferably 45 °.
- the second fold 16 has a curvature of 60 ° -180 °, preferably 135 °.
- the fold 19 has a curvature of 30 ° -150 °, preferably of 90 °.
- the support rail 1 has a web 13, openings 1 1 for receiving fasteners 10 and two meander-shaped edge folds 14, 14 'on.
- Each of the lateral edge folds 14, 14 ' forms a plurality of support-side shoulders 21, 21', 22, 22 'wherein the web 13 is above the bearing plane 26 spanned by the support-side shoulders 21, 21', 22, 22 ', whereby a gap 20 between the web 13 and the support plane 26 is formed.
- Each of the two meander-shaped edge folds 14, 14 ' is folded such that the profile of this retaining rail 1, starting from the web 13, a first leading to the support plane 26 folding 15, which first fold 15 a second of the support plane 26 away leading fold 16 follows and forms a first pad-side shoulder 21, which second fold 16 a third to the support plane 26th leading folding 17 follows and forms a comb 23, which third fold 17 follows a fourth fold 18 leading away from the support plane 26 and forms a second support-side shoulder 22, which fourth fold 18 is followed by a return to the web 13 fifth fold 19. It is understood that the ends 24, 24 'of the folded profile can be spaced apart from each other so that it can be committed without risk of injury to the cover strip 9.
- a multiple fold according to the invention is characterized in that the first fold 15 directed to the support plane 26 has a curvature of 30 ° -90 °, preferably 45 °.
- the second fold 16 has a curvature of 60 ° -180 °, preferably 135 °.
- the third fold 17 has a curvature of 60 ° -180 ° and preferably of 180 °.
- the fourth fold 18 has a curvature of 60 ° -180 °, but preferably of 180 °.
- the fifth fold 19 has a curvature of 30 ° -150 °, preferably of 90 °.
- the ends 24, 24 ' are dimensioned such that the retaining rail 1 upon entering the overlying cover strip 9 is not violated.
- the first support-side shoulders 21, 21 ' are not in the same plane as the second support-side shoulders 22, 22'.
- FIG. 6 shows a schematic representation of a mounted on a flat roof 4 inventive retaining rail 1.
- This figure 6 makes the Advantage of the inventive rail profile clearly.
- the retaining rail 1 is fastened by means of a screw 10 'on the flat roof 4.
- the spaced from the support plane 26 web 13 is pulled by the screw 10 'against the sealing strip 8.
- the gap 20 allows a free bending of the web 13.
- the force exerted by the screw 10 'on the support rail 1 force on the on the edge folds 14, 14' and thus on the shoulders 21, 21 'and 22, 22' transmitted directly
- the force exerted by the screw 10 'thus acts on a much smaller area than in a conventional retaining rail 1, which in turn means that the contact pressure on the sealing strip 8 at the same screw force is much higher than in a conventional retaining rail. 1
- the contact pressure acts on the lateral edge folds 14, 14 'of the support rail 1 and not over the middle thereof.
- the multiple fold 14, 14 'according to the invention generates an additional spring force on the cover web 8 when wind suction forces occur, since when lifting the outer second support shoulder 22 it is spread away from the first support shoulder 21.
- the inventive multiple folding leads to increased longitudinal rigidity of the support rail 1, which allows to reduce the number of mounting holes 1 1 and to manufacture the support rail 1 of a thinner material, resulting in both weight and cost savings.
- the retaining rail 1 according to the invention is made of a stainless steel and has a material thickness of 1.5 mm or less.
- the support rail 1 is 30 mm wide in this embodiment, wherein the web 13 measures a width of 16 mm.
- the second and fourth folds 16, 18 form two shoulders 21 and 22, which preferably lie in one plane. It is understood that these shoulders 21, 22 opposite the support plane 26 may have different heights.
- the fifth fold 19 is arranged such that the Edge portion 24 rests on the comb 23. In this embodiment, the edge fold 14 has a total height of 7 mm. The length of this support rail 1 is about 3 m.
- the advantages of the present retaining rail 1 are immediately apparent to the person skilled in the art and can be seen in particular in the increase in the lateral contact pressure and the increase in the longitudinal rigidity.
- the contact pressure zone is laid out of the area of the fastening means 10 in order to prevent damage to the sealing strip 8 in the region of the fastening means 10.
- the non-positive connection prevents the meander-like deformation of the edge folds 14, 14 'with the sealing strip 8, that any possible laterally next to the support rail 1 laid welding string 12 can slide under the support rail 1 and thus is no longer suitable for the weld.
- the retaining rail may also consist of other materials, which are advantageous rust-resistant or rust-free, especially from hot-dip galvanized steel.
- the material thickness of the retaining rail can also be designed differently than described above, material thicknesses of 2 mm or less are particularly advantageous.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07727109A EP1999318B1 (en) | 2006-03-20 | 2007-03-20 | Retaining rail for roofing membranes |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06005678A EP1837453A1 (en) | 2006-03-20 | 2006-03-20 | Holding rail for roofing membranes |
EP07727109A EP1999318B1 (en) | 2006-03-20 | 2007-03-20 | Retaining rail for roofing membranes |
PCT/EP2007/052632 WO2007107560A1 (en) | 2006-03-20 | 2007-03-20 | Retaining rail for roofing membranes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1999318A1 true EP1999318A1 (en) | 2008-12-10 |
EP1999318B1 EP1999318B1 (en) | 2009-08-05 |
Family
ID=36808853
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06005678A Withdrawn EP1837453A1 (en) | 2006-03-20 | 2006-03-20 | Holding rail for roofing membranes |
EP07727109A Active EP1999318B1 (en) | 2006-03-20 | 2007-03-20 | Retaining rail for roofing membranes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06005678A Withdrawn EP1837453A1 (en) | 2006-03-20 | 2006-03-20 | Holding rail for roofing membranes |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090049783A1 (en) |
EP (2) | EP1837453A1 (en) |
CN (1) | CN101432492A (en) |
AT (1) | ATE438771T1 (en) |
DE (1) | DE502007001247D1 (en) |
WO (1) | WO2007107560A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3098364A1 (en) * | 2015-05-27 | 2016-11-30 | Sika Technology AG | Profile system for fixing coverings, in particular roof seal sheets |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4641472A (en) * | 1978-03-02 | 1987-02-10 | W. R. Grace & Co. | Fastener for securing roofing material to cementitious roof decks having removable tab |
US4574551A (en) * | 1984-05-23 | 1986-03-11 | Giannuzzi Louis | Load-bearing plate |
US4727699A (en) * | 1987-04-07 | 1988-03-01 | Sargent Richard G | Roofing membrane securement system |
US5267423A (en) * | 1987-08-03 | 1993-12-07 | Giannuzzi Louis | Self-drilling anchor and bearing plate assembly |
US4892429A (en) * | 1987-08-03 | 1990-01-09 | Giannuzzi Louis | Roof anchor and stress plate assembly |
US5797232A (en) * | 1996-08-15 | 1998-08-25 | Illinois Tool Works Inc. | Gripping plate for attaching roofing membrane |
US5930969A (en) * | 1996-08-27 | 1999-08-03 | Mayle; Robert L. | Roof membrane attachment system |
DE19646951A1 (en) * | 1996-11-13 | 1998-05-14 | Hilti Ag | Fastener |
US6205730B1 (en) * | 1999-01-13 | 2001-03-27 | Illinois Tool Works Inc | Roofing plate for securing roofing membrane |
GB9919374D0 (en) * | 1999-08-17 | 1999-10-20 | Valro Mfg Ltd | Anchor plates |
US6250034B1 (en) * | 1999-11-09 | 2001-06-26 | Construction Fasteners, Inc. | Membrane plate |
CA2352659C (en) * | 2001-07-09 | 2004-01-20 | Armtec Limited | Fastening plate |
US6722095B2 (en) * | 2001-08-20 | 2004-04-20 | Illinois Tool Works Inc. | Seam plate for retaining roof decking membrane |
US6952902B2 (en) | 2002-09-04 | 2005-10-11 | Pinconning Metals, Inc. | Attachment plate |
US20040170489A1 (en) | 2003-02-27 | 2004-09-02 | Building Materials Investment Corporation | Plastic/metal composite stress plate and method of using same for securing a thermoplastic roof membrane to a roof deck |
WO2004099527A1 (en) * | 2003-05-08 | 2004-11-18 | Grp Refurbishment Systems Limited | Mobile fixing |
DE202005006231U1 (en) * | 2005-04-18 | 2005-06-16 | Harald Zahn Gmbh | Construction kit for linear mechanical fastening of insulating materials and sealing strips on flat roofs has fastening elements comprising plastic holder with hollow shank and collar or head plate, and screw recessed in hollow shank |
-
2006
- 2006-03-20 EP EP06005678A patent/EP1837453A1/en not_active Withdrawn
-
2007
- 2007-03-20 DE DE502007001247T patent/DE502007001247D1/en active Active
- 2007-03-20 WO PCT/EP2007/052632 patent/WO2007107560A1/en active Application Filing
- 2007-03-20 EP EP07727109A patent/EP1999318B1/en active Active
- 2007-03-20 AT AT07727109T patent/ATE438771T1/en active
- 2007-03-20 CN CNA2007800151762A patent/CN101432492A/en active Pending
- 2007-03-20 US US12/224,857 patent/US20090049783A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2007107560A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3098364A1 (en) * | 2015-05-27 | 2016-11-30 | Sika Technology AG | Profile system for fixing coverings, in particular roof seal sheets |
Also Published As
Publication number | Publication date |
---|---|
WO2007107560A1 (en) | 2007-09-27 |
CN101432492A (en) | 2009-05-13 |
EP1837453A1 (en) | 2007-09-26 |
EP1999318B1 (en) | 2009-08-05 |
DE502007001247D1 (en) | 2009-09-17 |
ATE438771T1 (en) | 2009-08-15 |
US20090049783A1 (en) | 2009-02-26 |
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