WO1980001491A1 - A device for mounting insulation and sealing layer to the outside of a roof - Google Patents

A device for mounting insulation and sealing layer to the outside of a roof Download PDF

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Publication number
WO1980001491A1
WO1980001491A1 PCT/SE1980/000012 SE8000012W WO8001491A1 WO 1980001491 A1 WO1980001491 A1 WO 1980001491A1 SE 8000012 W SE8000012 W SE 8000012W WO 8001491 A1 WO8001491 A1 WO 8001491A1
Authority
WO
WIPO (PCT)
Prior art keywords
washer
covering
sealing layer
outside
holes
Prior art date
Application number
PCT/SE1980/000012
Other languages
French (fr)
Inventor
S Andersson
K Einarsson
Original Assignee
Vaenertak Ab
S Andersson
K Einarsson
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 Vaenertak Ab, S Andersson, K Einarsson filed Critical Vaenertak Ab
Priority to DE19803028515 priority Critical patent/DE3028515A1/en
Publication of WO1980001491A1 publication Critical patent/WO1980001491A1/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
    • E04D3/36—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
    • E04D5/145—Discrete fastening means, e.g. discs or clips

Definitions

  • the present invention refers to a device for mounting insulation and sealing layer to the outside of a roof and retaining it thereon and incorporating a washer, which is placed on the outside of the sealing laver and is attached to an underlaying fixed part of the roof structure by means of a fixing member, which extends through an opening in the washer, through sealing layer and insulation whereby the washer is provided with first locking means for interlocking with cooperating second locking means arranged in the underside of a covering washer having an unperforated upper surface and a bigger outer size than said washer, which covering washer is intended when mounted to encase said washer between itself and the underlayer.
  • a more recent design has used a .washer of a semi-rigid PVC-plastic, whereby the outer periphery of the washer has been glued to the sealing layer, preferably by aid of a liquid PVC-based adhesive.
  • the central through-hole for the fixing member has caused leak problems which are difficult to solve, at the same time as it has proven itself that it has been difficult to manufacture the PVC-washers without form defects which show themselves thus that the washers are warping so much that they become wavy instead of being plane. This has a detrimental effect on the washers' ability of giving a tight engagement with its periphery against the sealing layer.
  • a washer of PVC-plastic has been provided with a blind hole located in its surface facing the sealing layer, in which blind hole a headless connecting screw has been screwed in, whereupon the connecting member by means of a tool, which is attachable to the outside of the washer, is screwed on to the roof structure and thereby also the washer against the sealing layer and the insulation therebeneath.
  • the connecting member by means of a tool, which is attachable to the outside of the washer, is screwed on to the roof structure and thereby also the washer against the sealing layer and the insulation therebeneath.
  • the PVC-washer will furthermore tend to yield when subjected to big forces e.g. at strong wind, whereby the leak problem will furthermore increase at the same time as there is risk that the sealing layer will be torn apart at positions where the PVC-plastic cannot maintain its form and secure a sufficient contact
  • a fixing device for this purpose it has been used a profiled washer of plastic material which has a central opening for receiving a fixing member.
  • This washer is then completed with a protective cap, which is fitted over the washer and which will ascertain that there will be no fluid leakage between the opening of the washer and the fixing member.
  • the protective cap is connected to the washer thereby that a peripheral flange at its open end is brought to snap behind an annular groove at the lower edge of the washer.
  • the protective cap when mounted must be located at a small distance from the base. This implies risks for leakage in conformity with the above said as the plastic washer as stated above hardly can be manufactured without form defects, either such which will occur immediately at the manufacture or later due to stresses, loads etcetera.
  • the present invention has for its purpose to present a device for mounting and retaining insulation and sealing layer to the outside of a roof of the type mentioned hereabove and by the aid of which the above mentioned problems are eliminated, at the same time as the device is reliable and simple both to manufacture and to handle, and this has according to the invention been achieved thereby that the washer consists of a thin, formstable metal washer having through-holes, which define said first interlocking means, whereas the said second means of the covering washer are studformed projections protruding from the underside of the covering washer and being lockable in the holes of the washer, whereby the covering washer when locked to the washer, is intended to be connected to the. sealing layer along its edge projecting outside the washer, e.g. by a glue joint.
  • Figure 1 shows in a schematic cross-section a device according to the invention applied to a roof of which a small portion is shown in cross-section
  • Figure 2 snows in a planar view and a side view a covering washer forming part of the device according to the invention
  • Figure 3 is views corresponding to the views of figure 2 of a washer forming part of the device
  • Figure 4 is a view corresponding to figure 1 of another embodiment of the device according to the invention
  • Figure 5 is a view corresponding to figure 2 of a covering washer of the device according to figure 4
  • Figure 6 shows two views according to figure 3 of the washer forming part of the device according to figure 4.
  • FIG 1 a roof beam in the form of a sheet steel profile, which together with other beams carry an insulating mat 2 laid thereupon.
  • a sealing layer 3 in the form of a PVC-film, which is secured to the roof beam 1 by means of a connecting member 4 - in the embodiment shown, a screw - which extends through the sealing layer as well as through the insulation.
  • the screw 4 also extends through a counter-sunk, central opening ⁇ arranged in a round metal washer 5, which is placed upon the sealing layer 3 and thereby distributes the forces on the screw over a larger area of sealing layer and insulation.
  • connecting means 7 formed as two diametrically opposite, mainly keyhole-shaped holes, each having a bigger hole portion 7a and a smaller hole portion 7b continuous with the bigger one. From figure 3 can further be seen how the central opening 6 has a counter-sinking 6a.
  • the metal washer 5 is by means of the connecting means 7 locked to a covering washer 8, which is better shown in figure 2.
  • the covering washer 8 which has an unper forated upper surface, is at its underside provided with members 9 for interlocking cooperation with the connecting means of the metal washer and these cooperating members are formed as projections or studs located just in front of the holes 7 in the washer 5 and each being designed with a head 9a having a dimension which is somewhat smaller than the dimension of the bigger hole portion 7a in the washer but somewhat bigger than the dimension of the smaller hole portion 7b in the washer 5 , and having a stem portion 9b having a somewhat smaller dimension than the smaller hole portion of the washer.
  • a ridge 10 which can be used as a handle or which can form a grip for a tool, whereby the covering washer
  • the covering washer 8 has a bigger outer dimention than the washer 5 and before the covering washer has been fitted a curable glue, preferably on PVC-basis, is conveniently applied on the sealing layer 3 or along the periphery of the covering washer 8, whereby a cureing glue joint bond 11 is obtained between the sealing washer, which is preferably made in PVC-plastic, and the sealing layer.
  • a curable glue preferably on PVC-basis
  • FIGS 4-6 is shown in views corresponding to figures 1-3 a modified embodiment of the device according to the invention with a screw 4, which connects an insulating mass 2 and a sealing layer 3 of PVC-foil to a roof beam 1 during intermediation of a washer 15, provided with a through-hole 16 with a counter-sinking 16a.
  • the washer 15 is provided with interconnecting means 17 formed as two diametrically opposite round holes, which cooperate with interlocking members 19 formed in a covering washer 18 of PVC-plastic, each of which members 19 being formed as two peg-parts 19a, 19b which are flexible in direction from each other, and which at their end portions have hook means 19c.
  • the outer edge of the sealing cover is preferably connected to the sealing layer at 11, e.g. by heat sealing, glueing or the like.
  • the invention offers a simple and efficient mounting device, which has a metal washer as a load carrying element, whereas the plastic covering washer will not have to carry any loads of importance whereby it is not sensible to form defects to the same extent as earlier devices of similar type.

Abstract

A device for mounting and retaining insulation (1) and sealing layer (3) to the outside of a roof and comprising a formstable metal washer (5), which is placed on the outside of the sealing layer and is attached by aid of a connecting means (14), which extends through an opening in the washer, through the sealing layer and the insulation, whereby the metal washer has holes intended as interconnecting members for a covering washer of plastic material, which has stud-formed connecting means which when the covering washer is locked to the metal washer extend through the opening of the metal washer and which covering washer with its periphery projects outside the metal washer and which sealingly engages the sealing layer and is connected to this by means of a chemical bond (11).

Description

A DEVICE FOR MOUNTING INSULATION AND SEALING LAYER TO THE OUTSIDE OF A ROOF
The present invention refers to a device for mounting insulation and sealing layer to the outside of a roof and retaining it thereon and incorporating a washer, which is placed on the outside of the sealing laver and is attached to an underlaying fixed part of the roof structure by means of a fixing member, which extends through an opening in the washer, through sealing layer and insulation whereby the washer is provided with first locking means for interlocking with cooperating second locking means arranged in the underside of a covering washer having an unperforated upper surface and a bigger outer size than said washer, which covering washer is intended when mounted to encase said washer between itself and the underlayer.
For this method of fixing a sealing layer to insulation and roof structure it has earlier been used sheet metal washers which have been screwed or nailed to the beams of the roof. The hole for the screw or hole has thereby caused a great risk for leakage which is difficult to master, at the same time as there has been problems in obtaining an absolutely tight joint between the outer periphery of the washer and the underlaying sealing layer, which is preferably a PVC-film.
A more recent design has used a .washer of a semi-rigid PVC-plastic, whereby the outer periphery of the washer has been glued to the sealing layer, preferably by aid of a liquid PVC-based adhesive. Also in this case the central through-hole for the fixing member has caused leak problems which are difficult to solve, at the same time as it has proven itself that it has been difficult to manufacture the PVC-washers without form defects which show themselves thus that the washers are warping so much that they become wavy instead of being plane. This has a detrimental effect on the washers' ability of giving a tight engagement with its periphery against the sealing layer.
In a further embodiment a washer of PVC-plastic has been provided with a blind hole located in its surface facing the sealing layer, in which blind hole a headless connecting screw has been screwed in, whereupon the connecting member by means of a tool, which is attachable to the outside of the washer, is screwed on to the roof structure and thereby also the washer against the sealing layer and the insulation therebeneath. In this case the leakage which appeared along the bore of the connecting member has been eliminated but the problem of form defects remains. The PVC-washer will furthermore tend to yield when subjected to big forces e.g. at strong wind, whereby the leak problem will furthermore increase at the same time as there is risk that the sealing layer will be torn apart at positions where the PVC-plastic cannot maintain its form and secure a sufficient contact,
According to still another embodiment of a fixing device for this purpose it has been used a profiled washer of plastic material which has a central opening for receiving a fixing member. This washer is then completed with a protective cap, which is fitted over the washer and which will ascertain that there will be no fluid leakage between the opening of the washer and the fixing member. The protective cap is connected to the washer thereby that a peripheral flange at its open end is brought to snap behind an annular groove at the lower edge of the washer. In order to be able to make the connecting snap-motion the protective cap when mounted must be located at a small distance from the base. This implies risks for leakage in conformity with the above said as the plastic washer as stated above hardly can be manufactured without form defects, either such which will occur immediately at the manufacture or later due to stresses, loads etcetera.
The present invention has for its purpose to present a device for mounting and retaining insulation and sealing layer to the outside of a roof of the type mentioned hereabove and by the aid of which the above mentioned problems are eliminated, at the same time as the device is reliable and simple both to manufacture and to handle, and this has according to the invention been achieved thereby that the washer consists of a thin, formstable metal washer having through-holes, which define said first interlocking means, whereas the said second means of the covering washer are studformed projections protruding from the underside of the covering washer and being lockable in the holes of the washer, whereby the covering washer when locked to the washer, is intended to be connected to the. sealing layer along its edge projecting outside the washer, e.g. by a glue joint.
The invention will hereinafter be further described with reference to two embodiments shown in the accompanying drawings.
Figure 1 shows in a schematic cross-section a device according to the invention applied to a roof of which a small portion is shown in cross-section,
Figure 2 snows in a planar view and a side view a covering washer forming part of the device according to the invention, Figure 3 is views corresponding to the views of figure 2 of a washer forming part of the device, Figure 4 is a view corresponding to figure 1 of another embodiment of the device according to the invention, Figure 5 is a view corresponding to figure 2 of a covering washer of the device according to figure 4, and Figure 6 shows two views according to figure 3 of the washer forming part of the device according to figure 4.
In figure 1 is shown a roof beam in the form of a sheet steel profile, which together with other beams carry an insulating mat 2 laid thereupon. Above the insulation there is laid out a sealing layer 3 in the form of a PVC-film, which is secured to the roof beam 1 by means of a connecting member 4 - in the embodiment shown, a screw - which extends through the sealing layer as well as through the insulation. The screw 4 also extends through a counter-sunk, central opening β arranged in a round metal washer 5, which is placed upon the sealing layer 3 and thereby distributes the forces on the screw over a larger area of sealing layer and insulation.
In the metal washer 5, as can be better seen in figure 3, there is furthermore arranged connecting means 7 formed as two diametrically opposite, mainly keyhole-shaped holes, each having a bigger hole portion 7a and a smaller hole portion 7b continuous with the bigger one. From figure 3 can further be seen how the central opening 6 has a counter-sinking 6a.
The metal washer 5 is by means of the connecting means 7 locked to a covering washer 8, which is better shown in figure 2. The covering washer 8 , which has an unper forated upper surface, is at its underside provided with members 9 for interlocking cooperation with the connecting means of the metal washer and these cooperating members are formed as projections or studs located just in front of the holes 7 in the washer 5 and each being designed with a head 9a having a dimension which is somewhat smaller than the dimension of the bigger hole portion 7a in the washer but somewhat bigger than the dimension of the smaller hole portion 7b in the washer 5 , and having a stem portion 9b having a somewhat smaller dimension than the smaller hole portion of the washer.
On the outer side of the covering washer 8 there is furthermore a ridge 10, which can be used as a handle or which can form a grip for a tool, whereby the covering washer
8 can be rotated to allow its member 9 to arrive in interlocking engagement with the connecting means 7 of the washer 5 after the projection heads 9a have been inserted through the bigger hole portions 7a.
As can be seen in figure 1 the covering washer 8 has a bigger outer dimention than the washer 5 and before the covering washer has been fitted a curable glue, preferably on PVC-basis, is conveniently applied on the sealing layer 3 or along the periphery of the covering washer 8, whereby a cureing glue joint bond 11 is obtained between the sealing washer, which is preferably made in PVC-plastic, and the sealing layer.
In figures 4-6 is shown in views corresponding to figures 1-3 a modified embodiment of the device according to the invention with a screw 4, which connects an insulating mass 2 and a sealing layer 3 of PVC-foil to a roof beam 1 during intermediation of a washer 15, provided with a through-hole 16 with a counter-sinking 16a. The washer 15 is provided with interconnecting means 17 formed as two diametrically opposite round holes, which cooperate with interlocking members 19 formed in a covering washer 18 of PVC-plastic, each of which members 19 being formed as two peg-parts 19a, 19b which are flexible in direction from each other, and which at their end portions have hook means 19c. When the projections 19 are pressed against the holes 17 in the washer 15 the peg parts will be urged against each other and they will again flex back when they have passed through the washer 15 whereby the hook members 19c will snap behind the washer 15 and effectively interlock the washer and the sealing washer.
Also in this case the outer edge of the sealing cover is preferably connected to the sealing layer at 11, e.g. by heat sealing, glueing or the like.
The invention offers a simple and efficient mounting device, which has a metal washer as a load carrying element, whereas the plastic covering washer will not have to carry any loads of importance whereby it is not sensible to form defects to the same extent as earlier devices of similar type.
The invention is not limited to the embodiments shown in the accompanying drawings and described in connection thereto but modifications are possible within the sc ope of the accompanying claims.

Claims

C L A I M S
1. A device for mounting and retention, of insulation and sealing layer to the outside of a roof and comprising a washer, which is placed on the outside of the sealing layer and is attached to an underlaying fixed part of the roof structure by aid of a connecting means, which extends through an opening in the washer, through the sealing layer and the insulation whereby the washer is provided with first locking means for interlocking with cooperating second locking means formed in the underside of a covering, washer having an unperf orated upper surface and a bigger outer size than said washer, c h a r a c t e r i z e d t h e r e b y, that the washer is a thin, form-stable metal washer (5, 15) having through-holes (7, 17), which define said first interlocking means, whereas the said second means of the covering washer (8, 18) are stud-formed projections (9, 19) protruding from the underside of the covering washer and being lockable in the holes of the washer, whereby the covering washer when locked to the washer, is intended to be connected to the sealing layer (3) along its edge projecting outside the washer (5, 15) e.g. by a glue joint (11) in a manner known per se.
2. A device according to claim 1, c h a r a c t e r i z e d t h e r e b y, that the holes (7) in the washer (5) are formed mainly in keyhole-shape with a first, bigger portion (7a) and .a smaller- portion (7b) continuous therewith, the projections (9) of the covering washer being provided with a stem portion (9b) of a somewhat smaller dimension than .said smaller hole portion (7b), and with a head (9a) with a bigger dimension than said smaller hole portion (7b), but smaller dimension than said bigger hole portion (7a), whereby the covering washer is intended to be mounted by the projections (9).being inserted through said bigger hole portion (7a) whereupon the covering washer (8) is rotated until said projections engage in said smaller hole portions,
3. A device according to claim 1, c h a r a c t e r i z e d t h e r e b y, that the interconnecting holes
(17) of the washer (15) are round, whereas the projections (19) are each designed as at least two pin parts (19a, 19b), which are arranged flexible and provided with hook members (19c) arranged to snap behind the holes of the washer when the covering washer is pressed against the washer.
4. A device according to anyone of the preceding claims, c h a r a c t e r i z e d t h e r e b y, that the covering washer (8, 18) is made in PVC-plastic.
5. A device according to anyone of the preceding claims, c h a r a c t e r i z e d t h e r e b y, that the covering washer (8, 18) on its outside is provided with means (10) for cooperation with a tool for rotating the covering washer.
PCT/SE1980/000012 1979-01-18 1980-01-15 A device for mounting insulation and sealing layer to the outside of a roof WO1980001491A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803028515 DE3028515A1 (en) 1979-01-18 1980-01-15 A DEVICE FOR MOUNTING INSULATION AND SEALING LAYER TO THE OUTSIDE OF A ROOF

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7900455A SE7900455L (en) 1979-01-18 1979-01-18 SYSTEM 1 AND SYSTEM 2 REGARDING FINAL ASSEMBLY, SEALING AND HOLDING INSULATION AND SEALING LAYERS
SE7900455 1979-01-18

Publications (1)

Publication Number Publication Date
WO1980001491A1 true WO1980001491A1 (en) 1980-07-24

Family

ID=20337058

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1980/000012 WO1980001491A1 (en) 1979-01-18 1980-01-15 A device for mounting insulation and sealing layer to the outside of a roof

Country Status (4)

Country Link
EP (1) EP0023218A1 (en)
NO (1) NO800108L (en)
SE (1) SE7900455L (en)
WO (1) WO1980001491A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389826A (en) * 1980-09-02 1983-06-28 Kelly Thomas L Plate bonded system on top of rubber and method of preparing same
GB2142108A (en) * 1983-06-22 1985-01-09 Sfs Stadler Ag Fastener for securing roofing sheeting over soft insulating material to a fixed support
FR2617222A1 (en) * 1987-06-26 1988-12-30 Lebraut Richard Sheet comprising an anti-perforation protection cap for a device for holding multiple layers for waterproof insulating roofing
FR2675529A1 (en) * 1991-04-19 1992-10-23 Etanco Lr Distribution element for sealed multi-layer or single-layer roof coverings employed on various buildings
US5557897A (en) * 1992-02-20 1996-09-24 Braas Gmbh Fastening device for a roof sealing strip or the like
WO2005088024A1 (en) * 2004-03-11 2005-09-22 Harald Zahn Gmbh Sealing plate for a fixing element, fixing element formed thereby, and auxiliary assembly device therefor
CN103147517A (en) * 2013-02-01 2013-06-12 龙驰幕墙工程有限公司 Clip-shaped sealing structure and construction method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216166A (en) * 1961-01-12 1965-11-09 Gen Motors Corp Fastener installation
FR1419320A (en) * 1963-12-31 1965-11-26 Cover Improvements in fixing means, in particular of corrugated plates and the like
FR1484242A (en) * 1966-06-21 1967-06-09 Robertson Co H H Improvement in the assemblies of washers and quick-fit caps for fixing screws
SE399579B (en) * 1975-04-24 1978-02-20 Sandqvist Sune Allan WAY TO ATTACH A TIGHT LAYER TO A SURFACE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216166A (en) * 1961-01-12 1965-11-09 Gen Motors Corp Fastener installation
FR1419320A (en) * 1963-12-31 1965-11-26 Cover Improvements in fixing means, in particular of corrugated plates and the like
FR1484242A (en) * 1966-06-21 1967-06-09 Robertson Co H H Improvement in the assemblies of washers and quick-fit caps for fixing screws
SE399579B (en) * 1975-04-24 1978-02-20 Sandqvist Sune Allan WAY TO ATTACH A TIGHT LAYER TO A SURFACE

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389826A (en) * 1980-09-02 1983-06-28 Kelly Thomas L Plate bonded system on top of rubber and method of preparing same
GB2142108A (en) * 1983-06-22 1985-01-09 Sfs Stadler Ag Fastener for securing roofing sheeting over soft insulating material to a fixed support
FR2617222A1 (en) * 1987-06-26 1988-12-30 Lebraut Richard Sheet comprising an anti-perforation protection cap for a device for holding multiple layers for waterproof insulating roofing
FR2675529A1 (en) * 1991-04-19 1992-10-23 Etanco Lr Distribution element for sealed multi-layer or single-layer roof coverings employed on various buildings
US5557897A (en) * 1992-02-20 1996-09-24 Braas Gmbh Fastening device for a roof sealing strip or the like
WO2005088024A1 (en) * 2004-03-11 2005-09-22 Harald Zahn Gmbh Sealing plate for a fixing element, fixing element formed thereby, and auxiliary assembly device therefor
CN103147517A (en) * 2013-02-01 2013-06-12 龙驰幕墙工程有限公司 Clip-shaped sealing structure and construction method
CN103147517B (en) * 2013-02-01 2015-11-25 龙驰幕墙工程有限公司 Clip-shaped sealing structure and construction method

Also Published As

Publication number Publication date
SE7900455L (en) 1980-07-19
NO800108L (en) 1980-07-21
EP0023218A1 (en) 1981-02-04

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