EP0795658A1 - Dacheindeckungssystem sowie ein Verfahren zur Eindeckung eines Daches mit eimen Eindeckungssystem - Google Patents

Dacheindeckungssystem sowie ein Verfahren zur Eindeckung eines Daches mit eimen Eindeckungssystem Download PDF

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Publication number
EP0795658A1
EP0795658A1 EP97200690A EP97200690A EP0795658A1 EP 0795658 A1 EP0795658 A1 EP 0795658A1 EP 97200690 A EP97200690 A EP 97200690A EP 97200690 A EP97200690 A EP 97200690A EP 0795658 A1 EP0795658 A1 EP 0795658A1
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EP
European Patent Office
Prior art keywords
roof
fastening
insulation plates
covering
insulation
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.)
Withdrawn
Application number
EP97200690A
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English (en)
French (fr)
Inventor
Leonard Bert Benedict
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.)
Lb Benedict Beheer Bv
Original Assignee
Lb Benedict Beheer Bv
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
Priority claimed from NL1002565A external-priority patent/NL1002565C2/nl
Application filed by Lb Benedict Beheer Bv filed Critical Lb Benedict Beheer Bv
Publication of EP0795658A1 publication Critical patent/EP0795658A1/de
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam 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
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
    • E04D3/355—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material the insulating layers of adjacent slabs having cooperating edges
    • 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
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/358—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation with at least one of the layers being offset with respect to another layer

Definitions

  • the invention relates to a roof covering system in accordance with the preamble of claim 1.
  • the invention relates to a method of covering a roof using a roof covering system in accordance with the invention.
  • a roof covering system of the above kind is known, for instance, from DE-OS-1 709 005. Such systems are usually used for flat or lightly sloping roofs. With some roof covering systems of this kind the insulation plates are placed loosely onto the roof construction, after which the rainproof covering material which may, for instance, constitute strips of bituminous material or a similar material but on a plastic base, is applied over the insulation plates and suitably joined together to be rainproof by, for instance, applying strips over the seams and subsequently melting the bituminous material with the aid of a burner for rainproof fusion of the strips.
  • the rainproof covering material which may, for instance, constitute strips of bituminous material or a similar material but on a plastic base
  • a layer of gravel is applied onto the rainproof covering material which serves as ballast and because of its weight functions as additional means of securing the insulation plates on the roof construction.
  • ballast is actually not necessary as mechanical fastening means are used.
  • the roof can be easily and quickly dismantled, having few different materials and parts, which preferably are joined together as little as possible.
  • the absence of a gravel layer or other means of pressing-on may, however, cause problems, because it is not always certain that the insulation plates are in fact resting on the roof construction. Wind and expansion/shrinkage may result in play and cause noises and possibly damage to the roof.
  • the object of the invention is the removal of these problems and is characterized in claim 1. This embodiment ensures that the insulation plates rest on the roof construction while retaining the advantages described above.
  • fastening may basically be effectuated in various ways.
  • One preferred embodiment is determined by claim 2.
  • the required resilience is obtained in a very simple manner without any additional parts.
  • the angle between the first part of the fastening element and the second part will perforce be about 90° so that during mounting the fastening element has to undergo a certain deformation. This deformation constitutes a resilient load on the insulation plates, pressing them against the roof construction under some prestress.
  • An embodiment of the invention in accordance with claim 3 is of interest. This embodiment allows quick and efficient work with large elements which are supplied in one piece.
  • the insulation plates of the roof covering system according to the invention comprise a rainproof covering material.
  • This covering material extends about 15 cm past the insulation material at one of the sides and at the front surface, to allow the rainproof covering material to be fastened with a flap over an adjacent insulation plate.
  • the rear surface of the insulation plate also requires such a flap of rainproof covering material, for instance when a connection is required to an already existing roof covering or when locally an edge finishing is required, etc.
  • the embodiment of claim 4 is of importance.
  • an overlap can be created at the rear side of an isolation plate by breaking off a piece of insulation material at the groove.
  • the width of this block of insulation material that may be broken off may, for instance, be 150 mm.
  • the embodiment of claim 5 is of importance for avoiding that due to thermal effects undesirable stress occurs in the roof covering system or that play develops between the fastening elements and insulation plates.
  • play is preferably to be prevented because due to the changing roof load ensuing from wind and vorticity around a building, it can cause movement of the insulation plates resulting in damage and undesirable noises.
  • Claim 7 relates to a very important embodiment of the invention, ensuring that each insulation plate at both sides is tied to the roof by means of one or more fastening elements.
  • the fastening element may be manufactured by existing techniques without much effort by starting with a flat metal strip and bending it a few times.
  • this kind of fastening element has cross parts which are at their top side flat and extend to both sides, parallel to the roof construction.
  • a fastening element of this kind has proved to be of particular importance for mounting the insulation plates on the roof construction free of play and preferably under a certain prestress. This is desirable in view of the roof loads occurring from wind and the like, as well as in view of the thermic influence on the dimensions of the roof construction, the insulation plates, the fastening elements, etc.
  • the free edge of each of the two cross parts is suitably rounded off, thereby assisting with the insertion of the cross parts into the appropriate recesses at the side of the insulation plate.
  • Claim 9 concerns an embodiment with, for instance, the advantage that when applying the fastening element to the roof construction, no hindrance is experienced from a sideways extending second part. Because of this the first part may be less wide.
  • the embodiment according to claim 10 is important with respect to easy, correct placing of the insulation plates on the roof construction. Every unevenness on the roof construction and every deviation from a completely flat roof construction will lead to deformation of the insulation plate.
  • the correct placing of an insulation plate up against an already placed insulation plate is assisted by the presence of a slanting guiding surface, so that the respective part of the fastening element already placed on the roof construction, is guided into the groove.
  • the fastening of the insulation plates on a roof construction with the aid of the fastening elements of the invention is found to be insufficiently effective, for instance when the roofs of buildings are subject to especially strong winds, as with buildings situated near the coast, it is advantageous to apply the embodiment of claim 11.
  • the fastening elements of the invention extend to about half the height of the insulation plate.
  • the additional fastening element extends to the top of the insulation plate and is mechanically coupled to the fastening element positioned under it. In this manner the fastening elements together with the additional fastening elements form combined fastening elements providing a connection between the top of the insulation plates and the roof construction to which they are fastened.
  • Claim 15 relates to an interesting embodiment of the method according to the invention. As mentioned earlier, fusion of the covering flap may be carried out with the aid of mechanical and even automated mechanical means; these will be briefly discussed below.
  • a third aspect of the invention is described in claim 16 and relates to a fastening element pertaining to a roof covering system according to the invention and which is suitable for a method according to the invention.
  • Such fastening means may be developed, manufactured and brought on the market in the form of separate components by specialized companies. They may be made from any suitable material such as metal and/or plastic, for instance by means of extrusion, injection moulding, bending plate material, punching and bending etc.
  • the smallest possible quantities of materials are used, that they are in themselves the least possible burden to the environment, that the smallest possible variety is used, that they can be easily separated by kind during demolition, and can easily be removed, and that after demolition they are reusable in an unchanged or little-changed form, in other words, that they are damaged as little as possible during demolition or, if reuse is out of the question, that they can be recycled.
  • the roof covering system according to the invention is "demolition-friendly". It consists of few elements which elements may easily be removed and separated. In practice the demolition of the roof covering of a system according to the invention will amount to cutting through the covering material, pulling the thus formed strips from the insulation plates, the removal of the fastening elements and taking away the insulation plates. Neither the covering material nor the insulation plates comprise foreign parts. With a steel roof construction as often used in buildings of public utilities the fastening element may be left in place to be disposed of together with the steel roof construction.
  • the insulation plates may be reused, if desired lying loose in a roof covering system where ballast is used.
  • the covering material also, or at least parts thereof, may be reused, the important point being that this material has no drillings. As the material may be relatively thin, the environmental burden is in any case much smaller than with the known thicker material, this applies also to recycling and even to destruction by burning.
  • Figure 1 shows a roof covering system according to the invention comprising a roof construction 1, see Figs. 2 to 4, insulation plates 3 having a top surface 5, a bottom surface 7, sides 9 and 11, a front surface 13 and a rear surface 15.
  • the insulation plates 3 are provided with a rainproof covering material which may, for instance, be a strip of bituminous covering material which is as such known.
  • Further fastening means 19 and 21 are shown.
  • the fastening means shown in Fig. 1 comprise fastening elements 19 having a first part 23 for placing on and fastening to the roof construction 1 and a second part 25 for fastening to the sides 9 of the insulation plates 3, at a position between the insulation plates' top surface 5 and the bottom surface 7.
  • the fastening profile 19 is provided with holes 27 in the first and second parts 23 and 25 respectively of the fastening profile.
  • the fastening profiles are attached to the roof construction by screws 21 which are screwed into the roof construction through the holes 27 present in the first part 23.
  • the insulation plates 3 are attached by the vertical parts 25 of the fastening profile 19 by inserting screws 21 through the holes present in the side. This is done in an alternating fashion, with the in-between holes 27 being provided beforehand with screws 21 pointing in the other direction.
  • the insulation plate 3 is resiliently pressed onto the roof construction by having the second part 25 of the fastening element 19 form an angle with the first part 23 of more than 90°.
  • Said angle involves only a few degrees and is not perceptible in the drawing. This same property of the fastening part is applied to the other various embodiments shown in the drawing.
  • the screws can easily be pushed into the material.
  • an adjoining roof element is pushed against the fastening profile 19 it is also automatically attached to the fastening profile 19.
  • the second part 25 of the fastening profile 19 is attached to the side 9 of the insulation plates at a location between the insulation plate's top surface 5 and the bottom surface 7. This makes the fastening means suitable for insulation plates 3 having different thicknesses.
  • Figs. 2, 3 and 4 show insulation plates 29, 30 and 31 respectively having different shapes.
  • the insulation plate 29 shown in Fig. 2 has a top surface 33 and a bottom surface 35 as well as a left-hand side 37 and a right-hand side 39. In Figs. 3 and 4 said surfaces are also provided with reference numbers.
  • the sides of the insulation plates shown in cross-section are provided with recesses.
  • the left-hand side of the insulation plate 29 is provided with a recess 57.
  • the insulation plates 30 and 31 respectively are provided with recesses 59 and 61 respectively both at the left-hand side 45 and 53 respectively and at the right-hand side 47 and 55 respectively.
  • the insulation plates 29 in Fig. 2 are provided with a recess at only one side, whereas the insulation plates 30 and 31 respectively in Figs. 3 and 4 are provided with recesses in both sides.
  • This kind of recesses may extend over the whole length of the insulation plates and consequently over the whole length of a roof element which is, however, not necessary; the recesses may also be provided locally in the otherwise smooth sides.
  • Figs. 3 and 4 also show at the right-hand side of the roof covering system special edge fastening elements with the reference numbers 69 and 71 respectively.
  • the insulation plates 29 are provided at the left-hand side 37 with a recess 57.
  • the insulation plates 29 are provided with correspondingly shaped extending parts 73. These are shaped such that they fit into the recesses 57 leaving a little play.
  • the extending parts 73 may again extend over the whole length of the insulation plates and consequently the roof element or may, if desired, only be present locally. Due to the recesses 57 at the one side and the extending parts 73 at the other side, the insulation plates 29 engage, forming a tongue and groove joint.
  • the connecting elements 63 are shaped such that they fit into place between adjacent insulation plates.
  • the connecting element 63 is provided with a complementary part 75 interacting with the insulation plates 29 to be placed on both sides of the fastening element.
  • the complementary part 75 fits around the (in the drawing) right-hand side of a recess 57 and around the (in the drawing) left-hand side of an extending part 73.
  • the fastening element 63 comprises in essence a first part 77 consisting of a roof fastening part which serves to be fastened to the roof construction 1 at a location next to an insulation plate 29 which was placed earlier and under an insulation plate 29 to be placed subsequently and adjacent thereto.
  • the second part 79 of the fastening elements 63 comprises a part connected roughly at right angles to the first part 77, having a length which is less than the thickness T2 of the insulation plates 29.
  • the fastening element 65 which is used in the embodiment of the invention shown in Fig. 3, comprises a first part 81 and a second part 83.
  • the insulation plates 31 are at both sides provided with similar recesses 59 and the fastening means 65 are provided with complementary parts 85 and 87 extending on both sides at the top of the second part 83.
  • the first part 81 is again suitable for fastening to the roof construction 1 next to an insulation plate 31 placed earlier and under and adjacent to an insulation plate 31 to be placed subsequently.
  • the length L3 of the second part 83 is again less than the thickness T4 of the insulation plate 31.
  • the right-hand side of the insulation plate 31 at the far right in Fig. 3 is the insulation plate fastened by means of the profile 69 shown in Fig. 7 which corresponds broadly speaking with the profile 65 shown in Fig. 6, however, without one of the complementary parts. It comprises a first part 89 and a second part 91 as well as at its top side a single complementary part 93.
  • the complementary parts in this embodiment consist of a tube 99 containing insulation material 101.
  • This insulation material strengthens the tube 99 in particular against indentation, but it also prevents the possible formation of a cold spot between the insulation plates 33 shown in Fig. 4.
  • the connecting element 71 is again formed by an element that could be considered to be a modification of the connecting element 67, and will therefore not be discussed in detail. It has a first part 103, a second part 105 as well as a tube 107 filled with insulation material 109.
  • All the fastening elements shown consist of lengths of a fastening profile whose first part can be riveted mechanically.
  • Figs. 2, 3 and 4 show rivets indicated by reference number 111.
  • the various fastening profiles may be manufactured from any suitable material such as plastics or a metal.
  • Profiles such as the fastening elements 19, 63, 65 and 69 are, for instance, suitable for manufacture by plastics or aluminium extrusion.
  • the profiles of the fastening elements 19, 63, 67, 69 and 71 can, for instance, be suitably manufactured by bending strip material such as galvanized steel strip.
  • the profiles may, for instance, be supplied in standard lengths and used whole or may, on site or elsewhere, be cut or sawn into connecting elements of a useful length.
  • the embodiments of the invention shown involve roof elements 113 connected into one whole, comprising a number of insulation plates 3 or, if desired, one single long insulation plate 3, suitably fused with the strip-like covering material 17, for instance a known, somewhat flexible bituminous strip-like material or a similar material on a plastic base.
  • the strip-like covering material 17 With each roof element 113 a certain length of the covering material 17 extends across, past one of the sides (in Fig. 3 side 11) providing a covering flap 115.
  • the covering material comes just to the respective side or the front and rear surface.
  • a covering flap may also conceivably be formed at one or more of the latter-mentioned surfaces.
  • the covering flaps 115 of the adjacently placed roof elements 113 have a certain amount of overlap over the covering material of the adjacent roof element. All of the fastening means described above will after application be completely covered by the covering flaps 11.
  • This property of the invention allows a covering material 17 to be used with a thickness of not more than 5 mm at the most and preferably with a thickness of between 2.5 and 4 mm.
  • first insulation plates 31 are suitably joined by means of adhesion to the covering material 17 to form integrated roof elements.
  • the integrated roof elements are placed on the roof construction 1 by successively placing these adjacent to each other onto the roof while after each placement of a roof element the required fastening elements 67 are placed against its free side 53, which fastening elements 67 are then fastened to the roof construction 1 with the aid of the nails 111 or by some other suitable means such as, for instance, by adhesion.
  • the covering material 17 is finished to be rainproof.
  • the roof elements are joined together to form an integrated rainproof insulated roof covering by means of thermally fusing the covering flaps 115 of the one roof element to the top side of the covering material 17 of the other, adjacent roof element.
  • a device that can move either power driven or non-power driven over the roof elements, which device is provided with means to locally slightly lift the covering flap to be fused, and is provided with a flat burner that is able to slide under the thus lifted covering flap in order to heat the material of the covering flap as well as the covering material underneath to precisely the right melting temperature.
  • the device is provided with a press-on roller which firmly presses together the roof element parts rendered soft and sticky by heating. The rate at which such a device moves over the roof, the gas supply of the burner and the type of gas used are adapted to each other such that an optimal rainproof fastening is attained at the highest possible rate of movement and consequently productivity of the device.
  • Such a device may be automotive and up to a point may operate completely automatically.
  • Figs. 3 and 4 show how a right-hand side of a roof covering 47 or 55 is fastened by means of an adapted fastening element 69 or 71 respectively.
  • an adapted fastening element 69 or 71 For fastening a left-hand side (not shown) another fastening element (not shown) is required.
  • These fastening elements entail simple modifications of the fastening elements 69 and 71 in the sense that the respective complementary parts interacting with the recesses 59 and 61 are located at the right-hand side, instead of (in the drawing) at the left-hand side.
  • the fastening element 63 may be used unaltered both with a free left-hand side as a free right-hand side of a roof covering.
  • Figs. 10, 11 and 12 show further embodiments which will be discussed only briefly.
  • the fastening means are shown separately in Figs. 13, 14 and 15.
  • the insulation plates 201 shown in Fig. 10 are provided in their side 221 with a recess 243 and in their side 219 with a corresponding ridge 255 fitting into the recess 243.
  • the recess 243 has an undercut with the result, that the corresponding ridge cannot simply be placed into the recess by a translative mutual movement of two insulation plates.
  • the ridge 255 must therefore be fitted into the recess of the insulation plate already placed on the roof construction by means of a tilting movement.
  • Special with this embodiment is, that due to the undercut a coupling is realized between the adjacent insulation plates which is completely independent of the fastening of the insulation plate by means of the fastening element.
  • the fastening element used is a fastening element 231 (see also Fig. 13), comprising a first part 235 for fastening on the roof construction in addition to a vertical upright second part 239 which at about half its height is bent, forming between the bent part and the rest of the part an angle of roughly 120°. This angle is of no further importance and may, depending on the circumstances, be varied.
  • the bent part forms a complementary part 249 fitting into the bottom part of recess 243 (see Fig. 10).
  • Fig. 11 resembles the preceding embodiment of Fig. 10, except that the recess 245 in the insulation plates does not have an undercut and is in this case roughly shaped like a right-angled triangle.
  • the insulation plate's 203 side 223 is provided with a corresponding ridge 257 fitting into the recess 245 at the side 225.
  • the fastening element 231 is the same as in Fig. 11, but may also differ, especially in regard of the dimensions of the different parts and the angle between the complementary part 249 and the rest of the part 239.
  • the insulation plates 205 are coupled together by means of a fastening element 233 which in this case consists of two separate parts, 233A and 233B, mounted on top of each other.
  • the first part 233A consists of a part 237 and another part 241 with the top part 251 forming a complementary part fitting into a recess 259 at the side 229 of an insulation plate 205.
  • This complementary part 251 runs substantially parallel with the first part 237 of the fastening element. It is made from a resilient metal or plastic material, and comprises a bottom part 251A with a part 251B bent back over it at 261. Near the bend 261 both parts 251A and 251B are provided with indentations 263.
  • the second complementary part 253 consists of a moulding having a cross-section shaped like a round-topped cone with connected to it a flat moulding 267 placed between the parts 251A and 251B. The latter being inserted at the open side and pushed between the resilient parts 251A and 251B past the indentations 263 between which it is clamped by spring pressure.
  • the flat moulding 267 is locally provided with notches 269 to accommodate the indentations 263, so that after insertion, the complementary part 253 with respect to the part 233A of the fastening element, is locked by means of the indentations 263.
  • the whole part 253 consisting of the rounded cone-shaped profiled moulding 265 together with the connected flat moulding 267 may be made entirely from recycled plastic, for instance, recycled polyethylene.
  • the profiled moulding 265 fits into the recess 247 of the side 227 of the insulation plate 205.
  • the first part 237 of the fastening element is easily accessible from above to fasten the fastening element onto the roof construction 1. Only then is part 233B pushed between the parts 251A and 251B and secured by means of the indentations 263 being snapped and locked in the recess 269, and is the next insulation plate 205 pushed against the side of the roof element 205 just previously placed against the fastening element consisting of the two parts 233A and 233B, fastened to the roof construction.
  • Fig. 15 shows a roof construction 1 with two insulation plates 301 and 303 to be fastened thereto with their sides 305 and 307 respectively facing each other and having front surfaces 309 and 311 respectively.
  • a layer of covering material 313 and 315 respectively is affixed to the insulation plates 301 and 303 .
  • fastening means in the form of a fastening element 317 and nails 318 for fixing the fastening element 317 to the roof construction 1.
  • the fastening element 317 hereafter also to be referred to as fastening profile is dimensioned, especially with respect to height, such that effectively no heat loss attributable to the fastening profile 317, occurs.
  • the sides 305 and 307 of the insulation plates are provided with recesses 321 and 323 respectively, substantially forming of a horizontal groove opening out at the respective side of the insulation plate.
  • the underside of the opening of the groove is bevelled to form a guiding surface 325 and 327 respectively, to guide the corresponding complementary part (still to be discussed) of the fastening profile 317 into the groove.
  • a guiding surface may be provided at the top side of the groove.
  • This fastening element comprises a first part 329 to be placed for fastening onto a roof construction 1.
  • the second part serves to fasten the sides 305 and 307 of the insulation plates somewhere between the bottom surface and the top surface of the insulation plates.
  • the complementary parts of the fastening profile 317 which are to be fitted into the recesses 321 and 323, consist of cross parts 333 and 335 extending at least nearly parallel to the first part 329.
  • the first part 329 and the second part 331, and of the parts 333 and 335 consist of parts made of a single, multi-bent metal strip, for instance thin galvanized steel plate.
  • the cross parts 333 and 335 each consist of two parts of the strip, 333a, 333b and 335a, 335b respectively, which run nearly parallel at a short distance from each other.
  • the strip is bent such that the free edges 333c and 335c of each of the two cross parts 333 and 335 respectively, have a rounded transition between the parts 333a, 333b and 335a, 335b respectively.
  • the roundings, together with the bevels provide a sort of locating effect, facilitating the mounting of the roof covering system. In addition, this prevents possible damage which could result from the cross parts of fastening profiles exhibiting sharp edges and not immediately and properly being inserted into the relatively fragile insulation plates.
  • the first part 329 of the fastening profile 317 forms an angle ⁇ greater than 90°, for instance between 91° and 92°, with the vertical body part 337 of the second part 331.
  • the angle causes a downward force to be exerted via the body part 337 of the fastening profile on to the cross part 335, which at that moment is already placed in the groove 323 of the insulation plate 303.
  • the cross part 333c causes the cross part 333c to come under an angle such that when the insulation plate 301 is abutted and the cross part 333c enters the recess 321, a downward force is also exerted onto the insulation plate 301.
  • the resilience of the material from which the fastening profile 317 is made is obviously of importance.
  • the insulation plates 301 and 303 are provided with a groove 339 and 341 respectively, extending across their width from the bottom surface to near the top surface. These grooves are located at a distance from said rear surfaces, respectively the front surfaces 309 and 311, which distance corresponds with the distance being bridged by the overlapping parts 313a and 315a of the rainproof material 313 and 315 respectively.
  • the fastening means for fastening the insulation plates onto the roof construction may also comprise additional fastening elements.
  • Fig. 16 shows a first part 347 for placing on the top surface of the insulation plate 303 and a second part in the form of a long nail 349 which serves for the mechanical coupling of the additional fastening element to the fastening element 317.
  • Fig. 17 shows the coupled situation.
  • the first part 347 may comprise a ring or plate but may also comprise a strip extending parallel to the recess 323 of the insulation plate 303.
  • the nail 349 may be driven through the insulation plate 303 and through the cross part 335 of the fastening profile 317 with the aid of a suitable machine. In the situation shown in Fig.
  • the pin 349 is inserted through both parts 335a and 335b of the cross part 335.
  • the top of the insulation plate 303 is indirectly coupled with the roof construction 1.
  • the overlap 313b formed by the rainproof material 313 at the side 305 may be placed over the first part 347 of the additional fastening elements and the head of the nail 349, so that the watertightness of the rainproof covering of the roof covering system will continue to be ensured.
  • Fig. 18 very much resembles Fig. 17 and will therefore be discussed only briefly.
  • the two insulation plates 351 and 353 are so-called rebate plates which in themselves are known, whose sides are provided over their width and over part of their height, with protruding complementary rebate parts 351S and 353S respectively, so that the rebate part 351S of the insulation plate 351 abuts to the complementary rebate part 353S of the adjacent insulation plate 353.
  • the fastening element again consists of the same fastening profile 317 from Figs. 1 to 4. This fastening element is provided below the rebate part 353S of the insulation plate 353 and next to the complementary rebate part 351S of the insulation plate 351.
  • the drawing shows clearly that the invention is equally applicable with the known so-called rebate plates.
  • the fastening element 317 may, with respect to dimensions, particularly the dimensions of the cross parts 333 and 335, be adjusted, which may be of particular importance when the rebate parts are relatively broad.
  • the rebate part of the insulation plate 351 may also be situated above the rebate part 353S instead of under it as shown in the drawing.
  • the insulation plates 301 and 303 are provided with several compensation grooves 346 situated at a distance from each other, distributed over the breadth of the insulation plates and extending from the bottom surface to near the top surface for the compensation of thermically determined changes in the dimensions of the insulation plates.
  • Fig. 15 shows a single such groove in each of the insulation plates 301 and 303. This kind of grooves has, at least almost, the same shape as the grooves 339 and 341. There are several such grooves provided over the length of the insulation plates, which is not shown in the drawing.
  • a space is provided locally between the abutting insulation plates 301 and 303 by means of slightly receding the side 305 of the insulation plate 301 (see in particular Fig. 16) over a height which is adapted to the fastening profile 317.
  • the receding embodiment may be attained by milling part of the side 305 nearest the roof construction over the indicated distance d.
  • Fig. 17 shows how by this measure some space is created under the cross part 333 of the fastening profile 317, between the body part 337 of the fastening profile and the side 305 of the insulation plate 301. Above the cross parts 333 and 335, however, the insulation plates abut without play. See in this connection also Figs. 10 to 12 where the same measure is taken. In this way the heat loss is kept to a minimum as there is no open connection between the roof construction 1 and the top of the insulation plates 301 and 303.
  • the chosen arrangement of the fastening element 317 which abuts play-free against the insulation plate 353 (Figs. 16 to 18).
  • the amount of play 365 is to be found at the side of the insulation plate 351 and is enclosed between the first part 329 of the fastening part 317, the body part 337 and the cross part 333.
  • the space 365 is, however, in contact with the space between the parts 333A, 333B, 335A and 335B.
  • This can optionally also be prevented by interchanging the cross parts 333 and 335, thus in this sense altering the embodiment of the fastening element 317.
  • Such an embodiment prevents ventilation in cross direction. This ventilation may be desirable or indeed undesirable, depending on the circumstances.
  • the additional fastening element 355 of Fig. 20 consists just like the fastening element 317 of Fig. 19, of a profile made from a multi-bent metal strip. This provides a body part 357, an upper flange 359 and, extending at the bottom of the body part, at some distance from each other, parallel to the upper flange 359, two parts 361 and 363. These latter parts are fitted into the recess 323 of the insulation plate 303 so that the upper flange 359 comes to rest on the rainproof material 315. Only now the cross part 335 of the fastening profile 317 is applied such that it is located between the parts 361 and 363 of the additional fastening element 355.
  • fastening profile 317 and the additional fastening element 355 are mechanically coupled with each other.
  • the fastening elements may be embodied in numerous ways.
  • fastening elements made from plate material may locally be provided with slits so that resilient tongues are created.
  • additional resilient elements such as tension and/or compression springs of all conceivable kinds which are applied between parts of the fastening means which, in relation to each other are somewhat movable.
  • the drawings show only a few embodiments, the expert will be able to apply many alternatives having the same function, namely that of resiliently pressing the insulation plates against the roof construction by means of the fastening element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
EP97200690A 1996-03-11 1997-03-07 Dacheindeckungssystem sowie ein Verfahren zur Eindeckung eines Daches mit eimen Eindeckungssystem Withdrawn EP0795658A1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
NL1002565A NL1002565C2 (nl) 1996-03-11 1996-03-11 Dakbedekkingssysteem, werkwijze voor het bedekken van een dak met behulp van het dakbedekkingssysteem, alsmede bevestigingselement voor het dakbedekkingssysteem.
NL1002565 1996-03-11
NL1003222 1996-05-29
NL1003222 1996-05-29
NL1005144 1997-01-31
NL1005144 1997-01-31

Publications (1)

Publication Number Publication Date
EP0795658A1 true EP0795658A1 (de) 1997-09-17

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ID=27351129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97200690A Withdrawn EP0795658A1 (de) 1996-03-11 1997-03-07 Dacheindeckungssystem sowie ein Verfahren zur Eindeckung eines Daches mit eimen Eindeckungssystem

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Country Link
EP (1) EP0795658A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344120A (en) * 1999-08-12 2000-05-31 Premierseal Protective Sys Ltd Roof cladding
WO2023213507A1 (en) * 2022-05-03 2023-11-09 Pittsburgh Corning Europe Nv Reusable insulated roof system and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1120983A (en) * 1965-11-04 1968-07-24 Thermacoust Ltd Improvements in or relating to roof or like structures
NL7308365A (de) * 1972-06-16 1973-12-18
GB2136471A (en) * 1983-03-07 1984-09-19 Isotec Ag Thermal-insulating covering element for walls and ceiling
DE8808063U1 (de) * 1988-06-23 1988-08-18 Unidek Bouwelementen B.V., Gemert Plattenelement für die Herstellung von Gebäudedächern
DE8804855U1 (de) * 1988-04-13 1988-08-18 Linzmeier, Franz Josef, 88499 Riedlingen Wärmedämmplattenkonstruktion, insbesondere für Schrägdächer
NL1002564C1 (en) * 1996-03-11 1996-05-30 Espace Holding B V Roofing system with insulating plates

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1120983A (en) * 1965-11-04 1968-07-24 Thermacoust Ltd Improvements in or relating to roof or like structures
NL7308365A (de) * 1972-06-16 1973-12-18
GB2136471A (en) * 1983-03-07 1984-09-19 Isotec Ag Thermal-insulating covering element for walls and ceiling
DE8804855U1 (de) * 1988-04-13 1988-08-18 Linzmeier, Franz Josef, 88499 Riedlingen Wärmedämmplattenkonstruktion, insbesondere für Schrägdächer
DE8808063U1 (de) * 1988-06-23 1988-08-18 Unidek Bouwelementen B.V., Gemert Plattenelement für die Herstellung von Gebäudedächern
NL1002564C1 (en) * 1996-03-11 1996-05-30 Espace Holding B V Roofing system with insulating plates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344120A (en) * 1999-08-12 2000-05-31 Premierseal Protective Sys Ltd Roof cladding
GB2344120B (en) * 1999-08-12 2000-10-11 Premierseal Protective Sys Ltd Roof cladding
WO2023213507A1 (en) * 2022-05-03 2023-11-09 Pittsburgh Corning Europe Nv Reusable insulated roof system and method

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