WO2009027958A1 - A composite panel - Google Patents

A composite panel Download PDF

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Publication number
WO2009027958A1
WO2009027958A1 PCT/IE2008/000080 IE2008000080W WO2009027958A1 WO 2009027958 A1 WO2009027958 A1 WO 2009027958A1 IE 2008000080 W IE2008000080 W IE 2008000080W WO 2009027958 A1 WO2009027958 A1 WO 2009027958A1
Authority
WO
WIPO (PCT)
Prior art keywords
panel
overlap portion
insulating core
membrane
overlap
Prior art date
Application number
PCT/IE2008/000080
Other languages
French (fr)
Inventor
James Carolan
Gregory Flynn
Original Assignee
Kingspan Research And Developments Limited
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 Kingspan Research And Developments Limited filed Critical Kingspan Research And Developments Limited
Publication of WO2009027958A1 publication Critical patent/WO2009027958A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B11/00—Layered products comprising a layer of bituminous or tarry substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed 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
    • 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
    • E04D3/352—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
    • E04D3/35—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 composite panel comprising an external facing, an internal liner sheet and an insulating core between the external facing and the liner sheet.
  • a problem may arise if a weight is applied to a panel on one side of a joint between adjacent panels. This can arise during on-site finishing of the panels.
  • the panel to which the weight is applied can deflect relative to the stationary panel which causes problems in applying a finishing membrane.
  • This invention is directed towards providing a roof panel which will address this problem.
  • a composite panel comprising:
  • the panel having a first overlap portion extending along one side and a second overlap portion extending along an opposite side;
  • the internal sheet having an internal sheet first overlap portion on one side and an internal sheet second overlap portion on the opposite side, the first overlap portion of the internal sheet being substantially free of insulating core:
  • the first engagement means comprises a projecting part and the second engagement means comprises a recess part.
  • the projecting part is preferably of generally complementary shape to that of the recess part.
  • the side edge of the insulating core at the first overlap portion may have a first overlap portion step which defines the projecting part and the side edge of the insulating core at the second overlap portion step which defines the recess part.
  • the first overlap portion of the insulating core has two offset wedge faces with the first overlap portion step therebetween. The first overlap wedge faces are generally parallel to one another.
  • the second overlap portion of the insulating core also preferably has two offset wedge faces with the second overlap portion step therebetween.
  • the second overlap wedge faces are generally parallel to one another.
  • the wedge faces of the insulating core at the second overlap portion subtend an angle of from 70° to 80° with the external facing and the wedge faces of the insulating core at the first overlap portion subtend at a corresponding angle of from 1 10° to 100 ° with the external facing.
  • the wedge faces of the second overlap portion of the insulating core extends subtend an ?.n_j!e of a n prox!mate! v 75° with the extern?.' iacin 0 and the wedge faces of the first overlap portion of insulating core subtend a corresponding angle of approximate! 105° with the external facing.
  • the internal sheet comprises a plurality of generally trapezoidal portions.
  • the generally trapezoidal portions may have stepped side walls.
  • the internal sheet overlap portions are defined by part trapezoidal portions.
  • the trapezoidal portions have a depth of at least 90 mm.
  • the trapezoidal portions may have a depth of about 1 10 mm.
  • the external facing is provided by or coated on the weather side with a weather membrane.
  • the membrane may be of a plastics material such as polyvinylchloride.
  • the internal sheet may be of sheet steel.
  • the invention also provides an assembly, particularly a roof assembly comprising a plurality of panels of the invention.
  • Fig. 1 is a perspective view of a panel according to the invention:
  • Fig. 2 is a cross-sectional view of the panel of Fig. 1 ;
  • Fig. 3 is a cross sectional view of a portion of two adjacent panels according to the invention separated;
  • Fig. 4 is a cross-sectional view of the panels jointed together
  • Fig. 5 is a cross sectional view of an internal sheet of the panel.
  • Fig. 6 is a view on A-A in Fig. 5.
  • an insulated panel comprising a generally flat external facing 2, a profiled internal decking sheet 3, and an insulating core 4 between the external facing 2 and internal sheet 3.
  • the internal sheet 3 is typically of steel material.
  • the core 4 is of polyurethane or polyisocyanurate foam material which fills the space between the facing 2, and the sheet 3.
  • the panel 1 is generally used for a flat or low pitch (less than 2°) roofing system. However, it is envisaged that the panel could also be used as a floor panel.
  • the outer flat facing 2 may comprise a weather membrane or may have a prebonded weather membrane such as a plastics membrane, for example of polyvinylchloride. In this case the PVC membrane is heat sealed at the panel joint when assembled on site.
  • the outer facing 2 may alternatively comprise a prebonded bitchumen type membrane to which a further bitchumen type membrane may be applied on site.
  • a weather membrane such as a PVC membrane may be applied on site.
  • the internal sheet 3 has profiled joint-forming portions for connecting adjacent panels, on assembly as illustrated.
  • the inner sheet 3 comprises a first overlap portion 31 on one side which extends laterally of the external sheet 2 and is free of insulation.
  • the inner sheet 3 also has a second overlap portion 32 on the opposite side of the panel. On assembly, the first overlap portion 31 of the panel receives the second overlap portion 32 of the adjacent panel.
  • a side edge of the insulating core at the first overlap portion has a first engagement means 20 and the side edge of the insulating core at the second overlap portion has a second engagement means 21 which is opposite to the first engagement means.
  • the first engagement means is provided by a projecting part 20 and the second engagement means is provided by a recess part 21.
  • the projecting part 20 is of generally complementary mating shape to that of the recess pan 21.
  • the side edge of the insulating core at the first overlap portion 20 has a first overlap portion step 23 which defines the projecting part 20 and the side edge of the insulating core at the second overlap portion has a second overlap portion step 24 which defines the recess part 21.
  • the first overlap portion of the insulating core has two generally parallel offset wedge faces 4OA, 4OB with the first overlap portion step 23 therebetween.
  • the second overlap portion of the insulating core has two generally parallel offset wedge faces 4 IA, 41 B with the second overlap portion step
  • the projecting part 20 of the first overlap portion of the insulating core of one panel engages in the recess part 21 of the second overlap portion of the insulating core of an adjacent panel to form a joint therebetween as illustrated in Figs. 3 and 4.
  • At least a portion of the side edges of the insulating core 4 between the joint forming portions of the external sheet and the internal lining sheet has an inclined profile and the inclined profiles of the side edges of the insulating core 4 form oppositely directed wedge faces 4OA, 4OB, 41 A, 4 IB.
  • a side edge of the insulating core 4 of one panel is matched with the opposite side edge of an adjacent panel 20B, on assembly.
  • the wedge face 4OA, 4OB of the insulating core subtend an angle of from 70° to 80°, ideally about 75° to the outer facing 2 and the opposite wedge faces 41 A, 41 B subtend a corresponding angle of from 1 10° to 100°, ideally about 105° to the outer sheet 2.
  • the internal decking sheet 3 has a plurality of generally trapezoidal portions. For improved performance the side walls of the trapezoidal portions are stepped at 50.
  • the bases of the trapezoidal sections also have transversely extending reinforcing ribs 60.
  • the depth of the trapezoidal portions is at least 90mm, preferably about 1 10mm.
  • the thickness of the insulating foam between the portion of the internal sheet between the trapezoidal portions and the external sheet is generally at least 50mm and may be at least 70mm.
  • one or more factory applied and/or site applied seals may be provided at the joint between adjacent panels.
  • One or both of the side edges of the insulating core may be covered with an insulating tape.
  • the invention provides an insulating flat roof panel which facilities a high quality joint between adjacent panels.
  • the joint ensures a high level of insulation and fire performance but also has a high mechanical strength by virtue of the wedge faces of the insulating core at the joint and the overlap. Because of these features the panel may be used in wider spans than has heretofore been possible.
  • the panels are easily handled and can be built up to achieve a 5 to 6 metre double span.
  • the invention provides an insulated flat roof panel with highly efficient installation, insulation, fire performance and mechanical performance. It will be appreciated that the panels may be provided with opposite side edges or two different panels with a similar profile on both side edges may be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

An insulated panel comprises a generally flat external facing 2. a profiled internal decking sheet 3, and an insulating core 4 between the external facing 2 and internal sheet 3. The internal sheet 3 is typically of steel material. The core 4 is of polyurethane or polyisocyanurate foam material which fills the space between the facing 2, and the sheet 3. The panel 1 is generally used for a flat or low pitch roofing system. The outer flat facing 2 may comprise a weather membrane or may have a prebonded weather membrane such as a plastics membrane, for example of polyvinylchloride. In this case the PVC membrane is heat sealed at the panel joint when assembled on site. The outer facing 2 may alternatively comprise a prebonded bitchumen type membrane to which a further bitchumen type membrane may be applied on site. The outer facing 2 may also not have a prebonded weather membrane. In this case, a weather membrane such as a PVC membrane may be applied on site. The internal sheet 3 has profiled joint-forming portions for connecting adjacent panels, on assembly. One side edge of the insulating core 4 has a first step 23 which defines a projecting part 20 and the opposite side edge has a step 24 which defines a recess part 21. The projecting and recess parts 20, 21 interengage an assembly of adjacent like panels.

Description

1A composite panel'"
Introduction
The invention relates to a composite panel comprising an external facing, an internal liner sheet and an insulating core between the external facing and the liner sheet.
In the case of such panels which have an external facing which does not have independent integrity a problem may arise if a weight is applied to a panel on one side of a joint between adjacent panels. This can arise during on-site finishing of the panels. The panel to which the weight is applied can deflect relative to the stationary panel which causes problems in applying a finishing membrane.
This invention is directed towards providing a roof panel which will address this problem.
Statements of Invention
According to the invention there is provided a composite panel comprising:
a generally flat external facing;
a profiled internal sheet; and
an insulating core between the external facing and the internal facing;
the panel having a first overlap portion extending along one side and a second overlap portion extending along an opposite side; the internal sheet having an internal sheet first overlap portion on one side and an internal sheet second overlap portion on the opposite side, the first overlap portion of the internal sheet being substantially free of insulating core:
the side edge of the insulating core at the first overlap portion having a first engagement means and the side edge of the insulating core at the second overlap portion having a second engagement means which is opposite to the first engagement means at the first overlap portion;
the internal sheet overlap portions and the engagement means of the insulating core of adjacent like panels being interengagable on assembly.
In one embodiment the first engagement means comprises a projecting part and the second engagement means comprises a recess part. The projecting part is preferably of generally complementary shape to that of the recess part. The side edge of the insulating core at the first overlap portion may have a first overlap portion step which defines the projecting part and the side edge of the insulating core at the second overlap portion step which defines the recess part. In this case the first overlap portion of the insulating core has two offset wedge faces with the first overlap portion step therebetween. The first overlap wedge faces are generally parallel to one another.
The second overlap portion of the insulating core also preferably has two offset wedge faces with the second overlap portion step therebetween. The second overlap wedge faces are generally parallel to one another.
In one embodiment the wedge faces of the insulating core at the second overlap portion subtend an angle of from 70° to 80° with the external facing and the wedge faces of the insulating core at the first overlap portion subtend at a corresponding angle of from 1 10° to 100° with the external facing.
In one case the wedge faces of the second overlap portion of the insulating core extends subtend an ?.n_j!e of anprox!mate!v 75° with the extern?.' iacin0 and the wedge faces of the first overlap portion of insulating core subtend a corresponding angle of approximate!) 105° with the external facing.
In one embodiment the internal sheet comprises a plurality of generally trapezoidal portions. The generally trapezoidal portions may have stepped side walls.
In one case the internal sheet overlap portions are defined by part trapezoidal portions.
In one embodiment the trapezoidal portions have a depth of at least 90 mm. The trapezoidal portions may have a depth of about 1 10 mm.
In one embodiment the external facing is provided by or coated on the weather side with a weather membrane. The membrane may be of a plastics material such as polyvinylchloride.
The internal sheet may be of sheet steel.
The invention also provides an assembly, particularly a roof assembly comprising a plurality of panels of the invention.
Brief Description of the Drawings
The invention will be more clearly understood from the following description thereof, given by way of example only, with reference to the accompanying drawings, in which:-
Fig. 1 is a perspective view of a panel according to the invention:
Fig. 2 is a cross-sectional view of the panel of Fig. 1 ; Fig. 3 is a cross sectional view of a portion of two adjacent panels according to the invention separated;
Fig. 4 is a cross-sectional view of the panels jointed together;
Fig. 5 is a cross sectional view of an internal sheet of the panel; and
Fig. 6 is a view on A-A in Fig. 5.
Detailed Description of the Drawings
Referring to the drawings, there is illustrated an insulated panel according to the invention comprising a generally flat external facing 2, a profiled internal decking sheet 3, and an insulating core 4 between the external facing 2 and internal sheet 3.
The internal sheet 3 is typically of steel material. The core 4 is of polyurethane or polyisocyanurate foam material which fills the space between the facing 2, and the sheet 3. The panel 1 is generally used for a flat or low pitch (less than 2°) roofing system. However, it is envisaged that the panel could also be used as a floor panel.
The outer flat facing 2 may comprise a weather membrane or may have a prebonded weather membrane such as a plastics membrane, for example of polyvinylchloride. In this case the PVC membrane is heat sealed at the panel joint when assembled on site. The outer facing 2 may alternatively comprise a prebonded bitchumen type membrane to which a further bitchumen type membrane may be applied on site. The outer facing
2 may also not have a prebonded weather membrane. In this case, a weather membrane such as a PVC membrane may be applied on site.
The internal sheet 3 has profiled joint-forming portions for connecting adjacent panels, on assembly as illustrated. The inner sheet 3 comprises a first overlap portion 31 on one side which extends laterally of the external sheet 2 and is free of insulation. The inner sheet 3 also has a second overlap portion 32 on the opposite side of the panel. On assembly, the first overlap portion 31 of the panel receives the second overlap portion 32 of the adjacent panel.
A side edge of the insulating core at the first overlap portion has a first engagement means 20 and the side edge of the insulating core at the second overlap portion has a second engagement means 21 which is opposite to the first engagement means. In this case the first engagement means is provided by a projecting part 20 and the second engagement means is provided by a recess part 21. The projecting part 20 is of generally complementary mating shape to that of the recess pan 21.
The side edge of the insulating core at the first overlap portion 20 has a first overlap portion step 23 which defines the projecting part 20 and the side edge of the insulating core at the second overlap portion has a second overlap portion step 24 which defines the recess part 21. The first overlap portion of the insulating core has two generally parallel offset wedge faces 4OA, 4OB with the first overlap portion step 23 therebetween. Similarly, the second overlap portion of the insulating core has two generally parallel offset wedge faces 4 IA, 41 B with the second overlap portion step
24 therebetween.
In use, the projecting part 20 of the first overlap portion of the insulating core of one panel engages in the recess part 21 of the second overlap portion of the insulating core of an adjacent panel to form a joint therebetween as illustrated in Figs. 3 and 4.
Because of this interengagement deflection of one panel relative to another at a joint therebetween, for example during membrane overlap welding, is substantially avoided.
At least a portion of the side edges of the insulating core 4 between the joint forming portions of the external sheet and the internal lining sheet has an inclined profile and the inclined profiles of the side edges of the insulating core 4 form oppositely directed wedge faces 4OA, 4OB, 41 A, 4 IB. A side edge of the insulating core 4 of one panel is matched with the opposite side edge of an adjacent panel 20B, on assembly.
For optimum performance the wedge face 4OA, 4OB of the insulating core subtend an angle of from 70° to 80°, ideally about 75° to the outer facing 2 and the opposite wedge faces 41 A, 41 B subtend a corresponding angle of from 1 10° to 100°, ideally about 105° to the outer sheet 2.
The internal decking sheet 3 has a plurality of generally trapezoidal portions. For improved performance the side walls of the trapezoidal portions are stepped at 50.
The bases of the trapezoidal sections also have transversely extending reinforcing ribs 60.
For optimum performance the depth of the trapezoidal portions is at least 90mm, preferably about 1 10mm. The thickness of the insulating foam between the portion of the internal sheet between the trapezoidal portions and the external sheet is generally at least 50mm and may be at least 70mm.
It will be appreciated that, if desired, one or more factory applied and/or site applied seals may be provided at the joint between adjacent panels. One or both of the side edges of the insulating core may be covered with an insulating tape.
The invention provides an insulating flat roof panel which facilities a high quality joint between adjacent panels. The joint ensures a high level of insulation and fire performance but also has a high mechanical strength by virtue of the wedge faces of the insulating core at the joint and the overlap. Because of these features the panel may be used in wider spans than has heretofore been possible. The panels are easily handled and can be built up to achieve a 5 to 6 metre double span.
Thus, the invention provides an insulated flat roof panel with highly efficient installation, insulation, fire performance and mechanical performance. It will be appreciated that the panels may be provided with opposite side edges or two different panels with a similar profile on both side edges may be provided.
The invention is not limited to the embodiments hereinbefore described which may be varied in construction and detail.

Claims

Claims
1. A composite panel comprising:
a generally flat external facing;
a profiled internal sheet; and
an insulating core between the external facing and the internal facing;
the panel having a first overlap portion extending along one side and a second overlap portion extending along an opposite side;
the internal sheet having an internal sheet first overlap portion on one side and an internal sheet second overlap portion on the opposite side, the first overlap portion of the internal sheet being substantially free of insulating core;
the side edge of the insulating core at the first overlap portion having a first engagement means and the side edge of the insulating core at the second overlap portion having a second engagement means which is opposite to the first engagement means at the first overlap portion;
the internal sheet overlap portions and the engagement means of the insulating core of adjacent like panels being interengagable on assembly.
2. A composite panel as claimed in claim 1 wherein the first engagement means comprises a projecting part and the second engagement means comprises a recess part.
3. A composite panel as claimed in claim 2 wherein the projecting part is of generally complementary shape to that of the recess part.
4. A composite pane! as claimed in claim 2 or 3 wherein the side edge of the insulating core at the first overlap portion has a first overlap portion step which defines the projecting part and the side edge of the insulating core at the second overlap portion has a second overlap portion step which defines the recess part.
5. A composite panel as claimed in claim 4 wherein the first overlap portion of the insulating core has two offset wedge faces with the first overlap portion step therebetween.
6. A composite panel as claimed in claim 5 wherein the first overlap wedge faces are generally parallel to one another.
7. A composite panel as claimed in any of claims 4 to 6 wherein the second overlap portion of the insulating core has two offset wedge faces with the second overlap portion step therebetween.
8. A composite panel as claimed in claim 7 wherein the second overlap wedge faces are generally parallel to one another.
9. A panel as claimed in any of claims 5 to 8 wherein the wedge faces of the insulating core at the second overlap portion subtend an angle of from 70° to
80° with the external facing and the wedge faces of the insulating core at the first overlap portion subtend at a corresponding angle of from 1 10° to 100° with the external facing.
10. A panel as claimed in claim 9 wherein the wedge faces of the second overlap portion of the insulating core extends subtend an angle of approximately 75° with the external facing and the wedge faces of the first overlap portion of insulating core subtend a corresponding angle of approximately 105° with the external facing.
1 1. A panel as claimed in any preceding claim wherein the internal sheet comprises a plurality of generally trapezoidal portions.
12. A panel as claimed in claim 1 1 wherein the generally trapezoidal portions have stepped side walls.
13. A panel as claimed in claim 1 1 or 12 wherein the internal sheet overlap portions are defined by part trapezoidal portions.
14. A panel as claimed in claim 12 or 13 wherein the trapezoidal portions have a depth of at least 90mm
15. A panel as claimed in claim 14 wherein the trapezoidal portions have a depth of about 1 10mm.
16. A panel as claimed in any preceding claim wherein the external facing is provided by or coated on the weather side with a weather membrane.
17. A panel as claimed in claim 16 wherein the membrane is of a plastics material such as polyvinylchloride.
18. A panel as claimed in any preceding claim wherein the internal sheet is of sheet steel.
19. A panel substantially as hereinbefore described with reference to the accompanying drawings.
20. A panel assembly comprising a plurality of the panels as claimed in any of claims 1 to 19.
21. A panel assembly substantially as hereinbefore described with reference to the accompanying drawings.
PCT/IE2008/000080 2007-08-27 2008-08-26 A composite panel WO2009027958A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IE20070609 2007-08-27
IE2007/0609 2007-08-27

Publications (1)

Publication Number Publication Date
WO2009027958A1 true WO2009027958A1 (en) 2009-03-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IE2008/000080 WO2009027958A1 (en) 2007-08-27 2008-08-26 A composite panel

Country Status (3)

Country Link
GB (1) GB2452391B (en)
IE (1) IE20080692A1 (en)
WO (1) WO2009027958A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11037151B1 (en) 2003-08-19 2021-06-15 Stamps.Com Inc. System and method for dynamically partitioning a postage evidencing system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012107917A1 (en) * 2011-02-09 2012-08-16 Kingspan Research And Developments Limited A composite insulation panel
IT201900006006A1 (en) * 2019-04-17 2020-10-17 Isopan S P A COVERING UNIT OR ROOF COVERING

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Publication number Priority date Publication date Assignee Title
GB1341684A (en) * 1970-06-27 1973-12-25 Robertson Co H H Roof structures for industrial and like buildings
GB2376962A (en) * 2001-06-06 2002-12-31 Kingspan Res & Dev Ltd Indicating correct assembly of insulated panels
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GB2452391A (en) 2009-03-04
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GB2452391B (en) 2012-06-06

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