EP1158110A2 - Système de couverture - Google Patents

Système de couverture Download PDF

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Publication number
EP1158110A2
EP1158110A2 EP01201908A EP01201908A EP1158110A2 EP 1158110 A2 EP1158110 A2 EP 1158110A2 EP 01201908 A EP01201908 A EP 01201908A EP 01201908 A EP01201908 A EP 01201908A EP 1158110 A2 EP1158110 A2 EP 1158110A2
Authority
EP
European Patent Office
Prior art keywords
recess
attachment
attachment member
roofing sheet
recesses
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Withdrawn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
EP01201908A
Other languages
German (de)
English (en)
Other versions
EP1158110A3 (fr
Inventor
Hugh Deering
Noel Columba Benin Joseph Deery
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1158110A2 publication Critical patent/EP1158110A2/fr
Publication of EP1158110A3 publication Critical patent/EP1158110A3/fr
Withdrawn legal-status Critical Current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
    • E04D3/35—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
    • E04D3/352—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 at least one insulating layer being located between non-insulating layers, e.g. double skin slabs or sheets
    • 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
    • E04D3/3607—Connecting; Fastening the fastening means comprising spacer means adapted to the shape of the profiled roof covering
    • 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
    • E04D3/365—Connecting; Fastening by simple overlapping of the marginal portions with use of separate connecting elements, e.g. hooks or bolts for corrugated sheets

Definitions

  • the present invention relates generally to roofs, their construction and a method for erecting them. More particularly, the present invention relates to metal roofing made from individual metal sheets that are supported by beams.
  • roofs from sheets of metal rather than roof tiles.
  • the sheets themselves essentially take the form of an external sheet of steel backed by some insulating material.
  • An internal sheet is also sometimes provided to retain the insulating material.
  • These composite sheets are very rigid meaning that it is possible to use quite long and/or wide sheets without needing as many beams or trusses to support them. This reduces construction costs and also adds to the potential maximum loft space since there is a reduced need for support for the beams.
  • FIG. 1 of the accompanying schematic drawings illustrates how the known roofing sheets are attached to supporting beams.
  • a roofing sheet 10 is supported by beams 12, 14.
  • the roofing panel comprises an outer steel layer 18 and an inner retaining layer 22. Sandwiched between these layers is a layer of insulating material 20.
  • the layers 18, 20 and 22 form an integral unit known as a "roofing sheet" 10.
  • Nail heads 24 are schematically illustrated in Figure 1.
  • This prior art method gives rise to two problems. The first is that the nail penetrates completely through all the layers of the roofing sheet 10 and thus gives rise to a source of leakage.
  • the second problem is that a construction worker is required to be on the outside of the structure to bang the nails in and/or to operate the nail gun/screwdriver/spanner. This is a potentially dangerous task and it is necessary to use a skilled construction worker who has taken appropriate safety precautions. This increases the cost and time of construction.
  • the present invention seeks to alleviate the above mentioned problems by providing a roofing system which is less prone to leakage and which can be principally constructed from inside the building, with attachment from outside only being required at the roof ridge where a ridge cap can be used to cover holes, and at the edges where other forms of edge like or other trim can be used for a similar purpose.
  • the present invention provides a method for attaching roofing sheets to a beam, said method comprising:
  • the attachment members can be inserted from the inner surface of the roofing sheets, so that no work on the outer surface of the roof is reduced and there are no holes through the major part of the roofing sheet to permit leakage.
  • the attachment members function primarily to prevent lifting of the roofing sheets by wind.
  • the invention therefore makes it practical to use large roofing sheets which require substantially less timber or other structural supports as compared to conventional roof constructions.
  • the roofing sheets may be mounted on beams or other supports at a spacing of 1.2m to 3m centres.
  • attachment members are attached to the beam in another step, after the locking portions have been inserted into and retained in the recesses.
  • the present invention provides a method for attaching a roofing sheet to a beam, said method comprising:
  • the step of retaining an attachment member within a recess comprises inserting the attachment member into the recess in a first orientation, and rotating the attachment member so as to be in a second orientation. Generally this results in a portion of the attachment member being locked in the recess. It may be described as a "click-lock" arrangement.
  • the second orientation is 90° rotated from the first orientation.
  • the recess is substantially T-shaped in a plane perpendicular to said one surface or inner surface of said roofing sheet.
  • the attachment member also has a substantially T-shaped portion.
  • the attachment recesses are at the inner surface of the roofing sheet.
  • Recesses may be provided at edge surfaces of the roofing sheet provided that attachment members can be inserted therein from the inner surface.
  • corresponding recesses in edge surfaces of adjacent roofing sheets may together define an attachment recess to receive an attachment member.
  • two recesses in abutting edge surfaces of adjacent sheets may each define substantially one half of a T-shaped recess.
  • the attachment member is preferably connected to the beam using screws passed through holes in the attachment member.
  • the recess comprises one of a locating hole and a locating protrusion and the attachment member comprises one of a corresponding locating protrusion or a corresponding locating hole.
  • the corresponding holes and protrusions may then be engaged after the step of retaining the attachment member to the recess so as to provide for correct positioning of the attachment member in the recess.
  • said recess includes at least one locating hole in it
  • said attachment member includes at least one locating protrusion on it and said method comprises: locating said locating protrusion in said locating hole after the step of retaining said attachment member in said recess.
  • said recess includes at least one locating protrusion in it
  • said attachment member comprises at least one locating hole on it and said method comprises: locating said locating protrusion in said locating hole after the step of retaining said attachment member in said recess.
  • the method further comprises supporting a fascia parallel to said one surface or inner surface of said roofing sheet.
  • the roofing sheet comprises a plurality of recesses and a different attachment member is retained in each recess.
  • the invention therefore provides a method as described above wherein said roofing sheet has a plurality of recesses and a respective plurality of attachment members are provided, said method further comprising: retaining each of said plurality of attachment members within a respective one of said plurality of recesses.
  • the attachment members are retained at one or other end of the recesses.
  • the present invention also provides a roofing sheet comprising:
  • the recess is preferably T-shaped in a plane perpendicular to said inner surface and may span the entire length of the roofing sheet or may extend by only a small amount i.e. by a distance substantially less than an entire length of said roofing sheet.
  • the recess has a dimension in the plane of said inner surface which is substantially equal to, or greater than, the width of an attachment part which is intended to be inserted into said recess.
  • the recess is larger than the width of an attachment part to be inserted and has a similar length (e.g. has a dimension in the plane of said inner surface which is substantially equal) to the thickness of a beam which the sheet is intended to be attached to.
  • the recess(es) is (are respectively) formed from a shell surrounded by insulating material.
  • the shell may be a separate component and may be formed from a single piece of material, or from two separate pieces of material.
  • the shell may be integral with the inner surface of said roofing sheet i.e. the layer forming the said inner surface.
  • the shell has at least one hole in it to engage with protrusions formed on the attachment member.
  • This hole is preferably substantially parallel to the inner surface of the roofing sheet.
  • the outer layer is formed from steel and there is an insulating layer provided between said outer layer and said inner layer.
  • the present invention further provides an attachment member or clip for use with the method of the present invention, comprising a first portion having means for attachment to a beam and a second portion having shaped means for being retained in a shaped attachment recess in a roofing sheet.
  • the means for being retained preferably comprises a substantially T-shaped portion. It also preferably comprises at least one protrusion thereon to aid in the location of the attachment member in a recess having a corresponding hole.
  • the means for attachment to a beam preferably comprises a plurality of holes through which screws may be passed.
  • the invention provides a combination of roofing sheet and attachment member for use with the method as described above, or a combination formed from the roofing sheet as described above and the attachment member as described above.
  • the invention further provides a roof constructed according to the method as described above, or using the roofing sheet as described above or using the attachment member as described above.
  • the invention also includes a method substantially as described below with reference to Figures 2-15 and/or Figures 16-24 of the accompanying drawings.
  • the invention also includes a roofing sheet constructed and arranged substantially as described below with reference to Figures 2-15 and/or Figures 16-24 of the accompanying drawings.
  • the invention additionally includes an attachment member constructed and arranged substantially as described below with reference to Figures 2-15 and/or Figures 16-24 of the accompanying drawings.
  • Figure 2 illustrates the construction of a pitched roof according to the present invention.
  • roofing sheets 30 are supported by six beams 32.
  • the beams are further supported in a inverted V-shape by support structures 34.
  • the support of the beams 32 by the support structures 34 is not material to the invention.
  • the invention concerns the support of the roofing sheets 30 by the beams 32.
  • FIG 3 shows a cross-section along the line 3-3 in Figure 2 which clearly illustrates the system used for attaching the roofing panels 30 to the beams 32. Only one of the panels 30 from Figure 2 is shown in Figure 3 for the sake of simplicity.
  • the roofing panel 30, in common with the roofing panel 10 shown in Figure 1, is comprised of three layers. These are an outer metal layer 40, an insulating layer 42 and an inner retaining layer 44 (shown to have negligible thickness in Figure 3).
  • the roofing sheet 30 is, however, distinguished from the roofing sheet 10 by virtue of a plurality of recesses 46 formed in the retaining layer 44. These recesses are generally T-shaped as viewed in Figure 3. The important point about the recesses is that they present a relatively small opening width in the X-direction at the surface of the layer 44 but enlarge in the X-direction as you move away from the surface of the layer 44.
  • the recesses present surfaces 54, 56 parallel to the layer 44 which are able to support a force downward in the sense of Figure 3, (i.e. in the negative Y-direction).
  • Five recesses are shown in Figure 3. However, any number (either more or less than five) may be used so as to provide a number sufficient for attaching the roofing sheet 30 to the beam 32. Usually, a particular number of recesses will be provided per unit length of roofing sheet. It will be apparent also that recesses may be formed at the abutment of two roofing panels 30 as seen in Figure 2. One half of a T-shaped recess may be formed at the edge of each of the two panels, so as to form the T-shaped recess when the two panels are laid edge to edge.
  • the beam 32 has attached to it a plurality of attachment members 48. These comprise thin plates which are attached to the beam 32 by fixing portions 50 so that a substantially T-shaped part 52 protrudes from the top surface of the beam 32. This T-shaped part 52 engages with the corresponding T-shaped recess 46 of the roofing sheet 30 in the manner shown in Figures 3 and 4.
  • the T-shaped comprises a single upright member or stem with a pair of arms extending perpendicularly at the top thereof. The arms form over-hanging portions of the attachment member.
  • FIG 4 is a perspective view of a roofing sheet 30 attached to a beam 32 in the same manner as shown in Figure 3.
  • the roofing sheet 30 is partially cut away for clarity.
  • the attachment members 48 are thin compared to the width of the beam 32, e.g. they are of about 1.5mm thick. More importantly, they are thinner than the widths of the recesses 46 at the points where each recess emerges on the surface of the layer 44. This means that the attachment members 48 can be aligned with the Z-direction before being inserted into the recesses 46 and then twisted by 90° to achieve the position shown in Figures 3 and 4. They can then be attached to the longitudinal beam 32 using screws or nails which will pass through the holes in the portion 50 of the attachment member 48.
  • a preferred method in accordance with the present invention therefore involves firstly positioning the roofing sheet 30 on the plurality of longitudinal beams 32, secondly inserting an attachment member 48 into each recess 36 of the roofing sheet 30, thirdly rotating the attachment member 48 so as to be locked in the recess 36 and fourthly attaching the attachment member 48 to the longitudinal beam 32.
  • One attachment member 48 will in general be needed for each point where a recess crosses a beam along the surface of layer 44.
  • Figure 5 shows a perspective view of the underside of a roofing sheet 30 showing the configuration of the recesses 36 according to one embodiment of the invention.
  • the recesses 36 extend across the entire length of the roofing sheet 30 in the Z-direction.
  • This configuration allows an alternative method for attaching the roofing sheet 30 to the beam 32 to be applied.
  • the various attachment members 48 are attached to the beam 32 before the T-shaped parts 52 are interlocked with the recesses 46.
  • the attachment members 48 come already attached to the beam 32 or the beam 32 is formed with such members at the time of its manufacture.
  • the roofing sheet 30 may be slid in the Z-direction to engage the parts 52 in the recesses 46.
  • a wedge could be driven in the space between the top of the beam 32 and the sheet bottom layer 44.
  • the recesses 46 could be blocked with filler or any other suitable material to prevent further movement in the Z-direction.
  • the relative shape of the recesses 46 and the attachment members 48 assures that movement of the roofing sheet 30 relative to the beam 32 in the X or Y-directions is impossible.
  • FIG. 6 Another embodiment of the invention is shown in Figure 6.
  • the recesses 46 only extend a small amount in the Z-direction. Their length in this direction is greater than the width of the attachment members 48 so that these members may be rotated 90° to align with the Z-direction so as to be inserted into the slot formed at the point where the recess emerges on the layer 44.
  • the recesses 46 have a length in the Z-direction similar to (or slightly larger than) the width of the beam 32 in this direction.
  • the beam 32 can be securely attached to the roofing sheet 30 in a manner which conceals the recesses 46 and which prevents sliding of the roofing sheet 30 in the Z-direction. This method will be described with reference to Figures 7 and 8.
  • a respective attachment member 48 is inserted into each respective recess 46 of the roofing sheet 30. This is achieved by rotating the attachment portions by 90° to align them with the Z-direction, inserting them into the mouth of each recess so that the top of the T-shaped part 52 of each attachment member passes by the surfaces 54 and 56 of the recess 46 and then rotating each attachment member again by 90° so that they are each locked in the recess 46.
  • the attachment members may then be moved so as to be at one or other end of their recess. Preferably, they are arranged to be at the opposite end to the corresponding end which is occupied by the most closely adjacent attachment member. This is illustrated in Figure 7 which shows the underside of a roofing sheet 30 having an attachment member 48 inserted into each recess 36.
  • the attachment members 48 are positioned at alternate ends of the respective recesses as you move along the roofing member in the X-direction.
  • the roofing sheet 30 is presented to the beam 32 so that the beam substantially conceals each of the recesses 46 and so that the attachment members 48 are parallel to the sides of the beam.
  • the portions 50 of the attachment members 48 are then secured to the beam 32 by means of screws or nails. This results in the structure shown in Figure 8.
  • the beam substantially conceals each of the recesses 46. Further, the roofing sheet 30 cannot move in either the X or Z directions due to the positioning of the attachment members at one end of their respective slot.
  • each recess 46 can have two attachment members, one at each end.
  • only one or some of the recesses 46 could have two attachment members 48, with the rest having only a single attachment member at one of the ends.
  • Substantially any configuration of attachment members which prevents movement of the roofing sheet 30 relative to the beam 32 is envisaged by the present invention.
  • Figure 9 shows a close-up of the recess 46 shown in Figure 3.
  • the recess 46 is created within the insulating material 42 by means of a metal plate 60 bent into the form shown in Figure 9.
  • the bent plate 60 is retained in a hole formed in the retaining layer 44.
  • the bent plate 60 ensures that the recess keeps its shape even in cases when an insulating material 42 is used which is soft and has very little supporting strength.
  • the plate acts as a "shell" within the insulation material 42, and engages the T-shaped portion of the attachment member when it is locked in the recess.
  • the lower over-hanging portions 54, 56 of the locking shell (i.e. at the underside of the arms of the T-shape) provide surfaces parallel to the layer 44 which are able to support the downward force (in the Y-direction) when the attachment member is locked in the shell. These portions of the shell are therefore the most important for secure and firm attachment of the roofing sheet 30 to the beam 32.
  • Figure 10 shows an alternative arrangement for the bent plate 60 comprising two overlapping plates 62 and 64.
  • These plates have the advantage in that they can be inserted through the hole in the layer 44 when the soft insulating material is already in place. It is more difficult to insert the plate 60 shown in Figure 9 through the hole in the surface 44. Instead, in the case of Figure 9, the plate 60 is positioned by inserting the two wings through the hole from the insulating side of the layer 44. This must be done before the outer layer 40 sandwiches the insulating material 42 along with the inner layer 44. It will be apparent that a two-part shell of this kind is also suitable for use at the abutment of two adjacent panels, with one plate 62 being installed at the edge of one panel and the other plate 64 being installed at the edge of the other panel.
  • the plate 60 could be integral with the surface 44 rather than being an extra attachment.
  • the recess 46 would be formed by appropriate bending or moulding of the inner plate 44.
  • the roofing sheet 30 can be manufactured by juxtaposing the outer layer 40 with the inner layer 44 and simply filling the gap between these two layers with foam or similar insulating material, e.g. by foaming in situ with the shells 60 in place to create the recesses 46 with the insulating material.
  • Figure 11 shows an alternative embodiment of recess being a modification of the Figure 9 embodiment.
  • the modification comprises providing two holes 66 in the surface of the plate 60 in the lower over-hanging portion 54, 56 of the T. These holes do not necessarily run the whole length of the recess in the Z-direction although they could do if required. More preferably, they are limited in the Z-direction.
  • the holes 66 serve to provide locating holes for projections 68 on the attachment member (see Figure 12). These holes may be in any suitable shape, for example square, circular etc.
  • the attachment member 48 comprises a top section 52 substantially in the form of a T and a bottom section 50 having various holes for attaching the member 48 to a beam.
  • the holes 70 and 72 are designed to allow for some adjustment of the attachment member as it is screwed in.
  • the holes are such that a substantially horizontal adjustment is possible, although the holes could be oriented 90° to those shown to provide for a vertical adjustment.
  • both a horizontal and vertical adjustment can be allowed by the prudent choice of size and shape for the holes 70 and 72.
  • projections 68 At the lower over-hanging portions (i.e. the underside of the arms) of the T-shaped sections 52 are provided projections 68. In Figure 12, these projections are shown as triangular but they may take any suitable shape.
  • the projections are for engagement with the holes 66 in the recess shown in Figure 11.
  • the roof section 30 is positioned correctly relative to the beam 32.
  • An attachment member 48 is then inserted into each recess of the roofing sheet 30 by turning it by 90° and pushing upwards. Once the attachment member is completely inside the recess to its limit it is once again turned by 90° so as to be in the positions schematically shown in Figures 3 and 4.
  • the attachment member 48 is then positioned in the recess 46 so as to have a correct longitudinal positioning, i.e. a correct position in the Z-direction (perpendicular to the plane of Figures 11 and 12). This longitudinal positioning may advantageously be provided by the locating of the projections 68 within the holes 66.
  • the attachment member 48 may be slid in a the Z-direction until the projections 68 fall into the respective holes 66, at which point it is no longer possible to slide the member. If the holes 66 run the entire longitudinal length of the roofing sheet 30 positioning in this direction should be done by conventional means (e.g. by measurement).
  • the shape of the projection 68 is such that the tips of the projections 68 dig in to the insulating material 42. This further serves to lock the attachment member 48 into position with the projections 68 protruding into the holes 66. To ensure good location, the attachment member 48 is preferably pulled downwards as the next step of the method.
  • the final step of the method comprises attaching the part 50 of the attachment member 48 to the beam 32 using screws passed through the holes 70 and 72 and into the beam 32.
  • the top surface of the beam 32 is in contact with the lowest surface of the roofing sheet 30 which in this example will be the bottom surface of the plate 60.
  • the roofing sheet 30 is securely and firmly attached to the beam 32 without the need to pierce the outer surface 40 of the sheet and without the need to work on the roof itself. All of the attaching steps may be performed inside the building being constructed. Further, the T-shaped recess and attachment part 52 provide that the roof is supported in substantially all directions.
  • FIG 13 illustrates a close-up of part of a roofing sheet 30 of the type shown in Figure 3.
  • this embodiment allows for a fascia 74 to be provided on the inner surface of the roofing sheet 30.
  • the fascia 74 is gripped between the member 60 and the inner layer 44 of the roofing sheet 30.
  • the fascia 74 provides a more aesthetic appearance to the inside of the roof.
  • it could be made of any suitable material including moulded plastics, bent metal etc.
  • Figure 14 shows a modification of the embodiment shown in Figure 13.
  • the surface 44 has been dispensed with so that the insulation material 42 is retained solely by the fascia 74 and the bent plate 60.
  • FIG. 15 A yet further embodiment is shown in Figure 15.
  • the plates 60 are provided with an extra protrusion at their lower surface so as to form a pair of flanges 75a, 75b, to grip a substantially board-like sheet 76.
  • This could be simple plasterboard or any type of wood to provide a more natural finish.
  • man-made wood board such as plywood or MDF (medium density fibreboard), chipboard or metals such as steel, aluminium, copper, lead or zinc could be used.
  • plastics, plastic woods, asbestos or non-asbestos cement fibre may be used in a plain moulded form or with other adjacent facings.
  • FIG. 16-19 use an outer layer 40, suitably of steel, whose profile shows generally plane valley portions 40a alternating with ridges 40b. Alternatively the valley portions may be curved.
  • the outer layer is formed with a series of small steps 43 to give the appearance of overlapping roof tiles.
  • T-shaped recess 46 defined by a two-piece metal shell 60 (cf Figure 10) on the centre line of the panel.
  • the shell 60 comprises two generally S-shaped plates 62, 64 with right-angled corners.
  • One of the plates 62 has a top part which extends for substantially the full width of the T-shape.
  • the other plate 64 has a shorter top part which underlaps the top part of plate 62.
  • the lower parts of each S-shape are modified to form flanges 75a, 75b as described with reference to Figure 15.
  • each lateral edge of the panel there is a recess 46a, 46b corresponding to a portion of the top section of a T-shape i.e. an indent into the edge face of the insulating layer.
  • These recesses 46a, 46b are defined by respective metal plates 62, 64 of generally S-shaped configuration corresponding to the two pieces which form the shell 60.
  • the recesses 46a and 46b combine to form a T-shaped recess similar to the T-shaped recess 46 at the centre of the panel.
  • the insulating material 42 above the recesses 46a, 46b extends further (e.g.
  • the T-shaped part 52 of attachment members 48 may be inserted between the abutting edges of adjacent panels 41a and 41b which overlap at joint line 45.
  • the attachment member can be inserted when aligned with the Z-direction (see Figure 4), and can then be rotated through 90° so that the top section of the T-shaped part 52 enters the facing recesses 46a and 46b of the two panels and engages therein.
  • the fixing portion 50 of the attachment member can then be secured to the beam 32 by fixing devices such as screws, nails or the like through the holes in the fixing portion 50.
  • the metal plates 62 and 64 define the arms 46a and 46b of the recess and also the surfaces 63 and 65 at the sides of the upright members or of the stem of the T-shaped recess.
  • metal plates 62 and 64 are located in the appropriate positions relative to the inner layer 44 (with overlapping plates 62, 64 forming a shell 60 on the centre line), the outer layer 40 is placed at the appropriate distance from the inner layer 44, and foam insulation is injected into, or is formed in situ in, the space between the inner and outer layers.
  • the foam enters into the channels 41 on the underside of the ridges 40b, and also surrounds the shell 60 and the metal plates 62, 64 to hold them in position.
  • a sealant tape or fire tape 80 may be applied to the exposed edge of the insulating layer above the recesses 46a, 46b.
  • Figure 18 shows a combination of two embodiments which are generally similar to that of Figure 16 except as regards the lower layer.
  • the lower layer 84 is shown as being substantially thicker than in the previous embodiments. It comprises plasterboard, MDF, metal, timber or a similar finishing material which suitably will provide an aesthetic appearance to the panel. It can be routed, as shown at 85, to give the appearance of timber boards.
  • the layer 84 is bifurcated to form an upper flange 86 and a lower flange 88.
  • the upper flange lies between the insulating layer 42 and the lower flange 75b of the metal plates 64 and 62, the flange 75b being received in a channel between the flanges 86 and 88.
  • the lower flange 88 of the layer 84 extends further than the upper flange 86 so that it covers the opening of the recesses 46. It can be routed at the joint line so that the joint is not conspicuous. This flange 88 can be penetrated at appropriate locations to insert attachment members through it into the recesses.
  • the lower layer 84 is the same as on the right hand side, but there is a metal liner 90 interposed between it and the insulating layer. This is to improve the fire rating if for example timber or MDF is used as the lower layer.
  • Figure 19 shows an embodiment similar to that of Figure 16 except that two additional S-shaped metal plates 92 (similar to those at the edges) have been installed, extending for the length of the panel parallel to the central recess 46 and locking section 60 and spaced on either side there of at approximately one quarter and three quarters of the width of the panel.
  • These shaped metal pieces do not function as locking sections but acts as reinforcements to improve the stability of the panel if desired.
  • the locking sections 62, 64, as well as the reinforcements 92 have a single flange at the foot thereof, the flange being located between the insulating layer 42 and lower layer 44 (as in Figure 9). Holes may be cut through the lower layer 44 at appropriate locations for inserting attachment members
  • FIG 20 shows a structural tray 100, suitably of metal, for use as the lower layer of a panel according to the invention.
  • the tray 100 has a base 102 and edge walls 104 with out-turned shelves 106 at the top of the edge walls.
  • the metal cut to form each slot 108 has been turned down through 90° to form an over-hanging portion 109 similar to the lower over-hanging portions 54, 56 described above against which the arms of the T-shaped portion 52 of an attachment member 48 will act.
  • Each slot 108 has a length sufficient to accommodate the top section of a T-shaped attachment member which has been inserted between the edge walls 104 of adjacent panels and then turned through 90° to engage the arms of the T-shape into the slot 108 and against the over-hanging portion 109.
  • each slot may have a length similar or slightly greater than the width of a beam in the Z direction, so that attachment members may be inserted at either or both end(s) of the slot in the manner described above with reference to Figures 6-8.
  • the upright or stem part of the T-shaped recess may extend for the length of the roofing sheet but the perpendicular arms of the T-shaped recess (which provide the locking configuration) may be located only at positions corresponding to the spacing of beams.
  • Figure 21 shows an alternative form of structural tray having inwardly turned shelves 110 but otherwise similar to that of Figure 20.
  • a structural tray may be used, having the profile shown in Figure 20 or 21 but with one or more T-shaped recesses 46 for insertion of attachment members. It may be convenient to form the shell of the T-shaped recess(es) by shaping of the material of the structural tray.
  • FIG. 23 shows an extension piece 120 comprising a rectangular strip of metal similar to the attachment member 48 with holes 122 for securing the extension piece to the substrate (e.g., beam, purlin or the like). At the top of the extension piece there are tabs 124 which hook into the slot 72 of the attachment member 48.
  • FIG. 24 shows a form of T-shaped spring clip 130 to be used at edges of the roofing panels instead of an attachment member 48.
  • the clip 130 is of bent metal plate with the stem of the T-shape being formed by two parallel upright portions 132 and the arms of the T-shape being formed by outwardly bent (over-hanging) portions 134 which terminate in a curved-down portion 136.
  • Figure 25 shows a alternative form of attachment member for use at the edge of a roofing panel and/or in locations where access to a beam is restricted.
  • the attachment member has a fixing portion 150 comprising two plates 151, 152 at right angles to each other for fixing to front and top faces of a beam respectively.
  • a stem portion 153 extends upwardly from the plates 151, 152 and is then bent to form one arm 154 of a T-shape (or an inverted L-shape). This arm 154 is suitable for engagement in a recess 46a such as shown in Figure 16.
  • Figure 26 is a side view of two overlapping roofing panels 160, 161, each comprising an outer layer 162, an insulating layer 163 and an inner layer 164.
  • the over lapping edge of panel 161 forms a step similar in appearance to one of the pre-formed steps 43 shown in Figure 17.
  • the joint is supported on a steel purlin 165.
  • An attachment member 48 and extension piece 120 may be used to attach a roof panel to the remote flange 166 of the purlin.
  • the recesses 46 and the part 52 of the attachment member are described as T-shaped.
  • any suitable shape which performs the same function is envisaged.
  • an inverted L-shape or E-shape, a F-shape, or a Y-shape would be appropriate.
  • Virtually any shape having a single upright member with one or more generally perpendicular protrusions or arms from that member will function in the required fashion.
  • At peripheral edges of a roof, where there is no adjacent roofing sheet, inverted L-shaped or F-shaped members will be particularly suitable.
  • the outer surface 40 of the roofing sheet 30 is typically made of metal such as steel but may be made of any natural or man-made product. These include asbestos or non-asbestos cement fibre, timber, shingles, aluminium, copper, lead, zinc, nylon, plastics such as polyvinylchloride or polypropylene, any of which are usually pre-formed in the shape traditionally used for roofing on dwellings or buildings e.g. a stimulated roofing tile formation.
  • a substantially sinusoidal profile is depicted in Figures 3 to 8 and a ridge valley profile is depicted in Figures 16-19, although any shape is intended to be within the scope of the present invention.
  • the insulation layer 42 is preferably formed of a material having good heat insulating properties such as wood, paper, rockwool, glass fibre, phenolic resin polystyrene, polyurethane, hard foam, non-combustible insulating sheet, chemical foamed insulation, expanded insulation or extended insulation.
  • the insulating layer 42 is preferably bonded to the outer layer by a bonding agent or activator. Adhesives are also suitable.
  • the insulation may be rolled onto the outer surface 40 and adhered thereto or it could be formed on the outer surface 40, eg by spraying a foam. Most suitably it is foamed insulation, i.e. insulation which is foamed in situ between the outer layer 40 and the inner layer 44, 74 or 76.
  • the attachment members 48 and locking sections 60, 62, 64 may be formed of any suitable material but are preferably a metal such as galvanised steel.
  • structural plastics such as high density polypropylene, polyimide resins or polyamide resins may be used for either the attachment members or locking sections. They may suitably have a thickness in the ranges of 0.5mm - 2.5mm, particularly 1.0 - 2.0mm, e.g. about 1.3 - 1.6mm.
  • the total thickness of the roofing sheet of the present invention is typically in the range of 10 to 250 mm and is preferably 35 to 120 mm.
  • the thickness of the individual layers shown in the accompanying drawings are purely schematic.
  • the top layer 40 suitably has a thickness of between 0.1 to 5 mm (more preferably 0.4 to 1.5 mm, typically 0.6 mm) and the inner layer 44 has a similar thickness range to this.
  • beam is used herein to cover any suitable structural support for a roofing sheet, including timber or steel, and including a purlin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
EP01201908A 2000-05-22 2001-05-21 Système de couverture Withdrawn EP1158110A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0012405 2000-05-22
GB0012405A GB2362660A (en) 2000-05-22 2000-05-22 Roofing system

Publications (2)

Publication Number Publication Date
EP1158110A2 true EP1158110A2 (fr) 2001-11-28
EP1158110A3 EP1158110A3 (fr) 2002-01-02

Family

ID=9892119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01201908A Withdrawn EP1158110A3 (fr) 2000-05-22 2001-05-21 Système de couverture

Country Status (3)

Country Link
EP (1) EP1158110A3 (fr)
GB (1) GB2362660A (fr)
IE (1) IES20010487A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003102323A1 (fr) * 2002-05-31 2003-12-11 Metecno Spa Panneau isolant de fixation cache pour toits de batiment et toit ainsi obtenu
FR2852041A1 (fr) * 2003-03-04 2004-09-10 Vincent Aprin Panneau composite integre de toiture de maison
FR2874948A1 (fr) 2004-09-09 2006-03-10 Vincent Elian Aprin Procede de jonction etanche entre des panneaux composites et leurs accessoires pour les toitures de maison
ITMI20091395A1 (it) * 2009-07-31 2011-02-01 Flii Re S R L Pannello isolante strutturale con sistema di connessione integrato

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106193468A (zh) * 2016-09-13 2016-12-07 朱波 拼接式保温防水瓦板、拼接式保温防水瓦板组合结构及其施工方法
DE102017127297A1 (de) * 2017-11-20 2019-05-23 Reinhold Rachinger Verfahren zur Erstellung einer Dachabdeckung eines Gebäudes
CN110863619A (zh) * 2019-12-04 2020-03-06 徐州融创达电子科技有限公司 一种便于切割的彩钢瓦结构

Citations (3)

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Publication number Priority date Publication date Assignee Title
US4463533A (en) * 1982-06-24 1984-08-07 Mullet Willis J Sheet material roofing panel
GB2200670A (en) * 1986-12-03 1988-08-10 Stramit Ind Thermal insulation roof or wall panel
WO2001020099A1 (fr) * 1999-09-13 2001-03-22 Harald Zahn Gmbh Systeme de toiture et de couverture pour batiments a toits plats

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GB984136A (en) * 1960-10-18 1965-02-24 Lysaght Australia Ltd Sheet metal decking
CA989578A (en) * 1972-09-25 1976-05-25 George A.B. Austin Fastenings for roof and wall sheeting
SE458459B (sv) * 1987-02-16 1989-04-03 Plannja Ab Foerfarande och anordning vid utlaeggning av profilerad plaat
US5020293A (en) * 1989-01-27 1991-06-04 Tamatoshi Industries Limited Decorative panel assembly
US5636488A (en) * 1993-06-23 1997-06-10 Stramit Corporation Limited Panel and clip arrangement
WO1995012723A1 (fr) * 1993-11-03 1995-05-11 Michael Graham Dawes Couverture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463533A (en) * 1982-06-24 1984-08-07 Mullet Willis J Sheet material roofing panel
GB2200670A (en) * 1986-12-03 1988-08-10 Stramit Ind Thermal insulation roof or wall panel
WO2001020099A1 (fr) * 1999-09-13 2001-03-22 Harald Zahn Gmbh Systeme de toiture et de couverture pour batiments a toits plats

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003102323A1 (fr) * 2002-05-31 2003-12-11 Metecno Spa Panneau isolant de fixation cache pour toits de batiment et toit ainsi obtenu
FR2852041A1 (fr) * 2003-03-04 2004-09-10 Vincent Aprin Panneau composite integre de toiture de maison
FR2874948A1 (fr) 2004-09-09 2006-03-10 Vincent Elian Aprin Procede de jonction etanche entre des panneaux composites et leurs accessoires pour les toitures de maison
ITMI20091395A1 (it) * 2009-07-31 2011-02-01 Flii Re S R L Pannello isolante strutturale con sistema di connessione integrato

Also Published As

Publication number Publication date
GB2362660A (en) 2001-11-28
EP1158110A3 (fr) 2002-01-02
GB0012405D0 (en) 2000-07-12
IES20010487A2 (en) 2001-11-28

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