CA2783059A1 - Cladding boards - Google Patents
Cladding boards Download PDFInfo
- Publication number
- CA2783059A1 CA2783059A1 CA2783059A CA2783059A CA2783059A1 CA 2783059 A1 CA2783059 A1 CA 2783059A1 CA 2783059 A CA2783059 A CA 2783059A CA 2783059 A CA2783059 A CA 2783059A CA 2783059 A1 CA2783059 A1 CA 2783059A1
- Authority
- CA
- Canada
- Prior art keywords
- layer
- cladding board
- board according
- primarily
- plastics material
- 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.)
- Abandoned
Links
- 238000005253 cladding Methods 0.000 title claims abstract description 67
- 239000000463 material Substances 0.000 claims abstract description 29
- 229920003023 plastic Polymers 0.000 claims abstract description 26
- 239000004033 plastic Substances 0.000 claims abstract description 26
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 239000000806 elastomer Substances 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 239000010881 fly ash Substances 0.000 claims description 10
- 229920002635 polyurethane Polymers 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 7
- 229920002396 Polyurea Polymers 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- -1 aliphatic isocyanate Chemical class 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 6
- 239000005337 ground glass Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000010410 layer Substances 0.000 description 78
- 239000002023 wood Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012764 mineral filler Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/18—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of organic plastics with or without reinforcements or filling materials or with an outer layer of organic plastics with or without reinforcements or filling materials; plastic tiles
- E04F13/185—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of organic plastics with or without reinforcements or filling materials or with an outer layer of organic plastics with or without reinforcements or filling materials; plastic tiles with an outer layer imitating natural stone, brick work, tiled surface or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0864—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements composed of superposed elements which overlap each other and of which the flat outer surface includes an acute angle with the surface to cover
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
- E04F13/0876—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer the covering layer comprising mutual alignment or interlocking means
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
- E04F13/0878—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer the basic insulating layer comprising mutual alignment or interlocking means
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
- E04F13/0894—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with tongue and groove connections
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/18—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of organic plastics with or without reinforcements or filling materials or with an outer layer of organic plastics with or without reinforcements or filling materials; plastic tiles
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Finishing Walls (AREA)
Abstract
A cladding board comprises a side with a tongue and a side with a groove or cut-out portion to facilitate the attachment of the cladding board to another such cladding board;
wherein said board incorporates a backing layer of primarily rigid foamed plastics material; and a further layer located over said backing layer being primarily of an elastomer; said groove being of exposed rigid foamed plastics material without any elastomer covering being provided in said groove or cut-out portion; wherein said further layer has greater inherent flexibility than said backing layer.
wherein said board incorporates a backing layer of primarily rigid foamed plastics material; and a further layer located over said backing layer being primarily of an elastomer; said groove being of exposed rigid foamed plastics material without any elastomer covering being provided in said groove or cut-out portion; wherein said further layer has greater inherent flexibility than said backing layer.
Description
Cladding Boards Field of the Invention The invention relates to cladding boards.
Background to the Invention Cladding boards are typically designed for covering vertical surfaces. These can be used inside and outside. Wooden cladding has been used for many years with well-known drawbacks of expanding and contracting dependent upon the weather conditions;
requiring frequent treatments to prevent boards from rotting; and being prone to igniting.
Plastic cladding is also available in various forms. These are generally provided as extruded boards which are by definition formed with a layer of relatively thin plastics material which may or may not be coated for extra weather resistance.
The following prior art documents are acknowledged: W001/26899, US2010/064611, US2010/242398, EP0550873, and EPO192627.
Background to the Invention Cladding boards are typically designed for covering vertical surfaces. These can be used inside and outside. Wooden cladding has been used for many years with well-known drawbacks of expanding and contracting dependent upon the weather conditions;
requiring frequent treatments to prevent boards from rotting; and being prone to igniting.
Plastic cladding is also available in various forms. These are generally provided as extruded boards which are by definition formed with a layer of relatively thin plastics material which may or may not be coated for extra weather resistance.
The following prior art documents are acknowledged: W001/26899, US2010/064611, US2010/242398, EP0550873, and EPO192627.
2 Summary of the Invention In a first broad independent aspect, the invention provides a cladding board comprising a side with a tongue and a side with a groove or cut-out portion to facilitate the attachment of the cladding board to another such cladding board; wherein said board incorporates a backing layer of primarily rigid foamed plastics material; and a further layer located over said backing layer being primarily of an elastomer or polyurea; said groove being of exposed rigid foamed plastics material without any elastomer or polyurea covering being provided in said groove or cut-out portion.
In a subsidiary aspect, the further layer covers at least the front of said tongue.
Consequently, when the tongue is in contact with the groove of an adjacent board a watertight seal is achieved between the boards.
The provision of the rigid foamed plastics material layer provides enhanced insulation for buildings or other structures which are clad by this board. This would assist in retaining the heat in a building during the colder months whilst retaining the coolth during the warmer months. The provision of the foamed rigid layer may also increase the rigidity of a building. The provision of the elastomer located over the backing layer improves the weather resistance. If the rigid foamed plastics material layer were simply left exposed, the weather would erode the surface. It also allows the layer which is most exposed to the weather conditions to withstand cycles of expansion and contraction which might arise even though they would arise at a much lower level than a prior art wood-based cladding board. This configuration is also particularly advantageous in terms of the inter-connection between adjacent cladding boards.
In a subsidiary aspect, said layer of primarily rigid foamed plastics material has a shore D
hardness of 35 to 75. In this range, the cladding board rigidity achieves optimal constructional strength. It can for example be used as a conventional wood-based cladding board i.e. it can be cut or trimmed using carpenter's tools.
In a subsidiary aspect, the further layer covers at least the front of said tongue.
Consequently, when the tongue is in contact with the groove of an adjacent board a watertight seal is achieved between the boards.
The provision of the rigid foamed plastics material layer provides enhanced insulation for buildings or other structures which are clad by this board. This would assist in retaining the heat in a building during the colder months whilst retaining the coolth during the warmer months. The provision of the foamed rigid layer may also increase the rigidity of a building. The provision of the elastomer located over the backing layer improves the weather resistance. If the rigid foamed plastics material layer were simply left exposed, the weather would erode the surface. It also allows the layer which is most exposed to the weather conditions to withstand cycles of expansion and contraction which might arise even though they would arise at a much lower level than a prior art wood-based cladding board. This configuration is also particularly advantageous in terms of the inter-connection between adjacent cladding boards.
In a subsidiary aspect, said layer of primarily rigid foamed plastics material has a shore D
hardness of 35 to 75. In this range, the cladding board rigidity achieves optimal constructional strength. It can for example be used as a conventional wood-based cladding board i.e. it can be cut or trimmed using carpenter's tools.
3 In a further subsidiary aspect, said further layer is an inherently flexible layer. In a further subsidiary aspect, said further layer has a cushioning effect. In a further subsidiary aspect, the inherent flexibility of said further layer is higher than that of the rigid backing layer.
This aspect particularly improves its weather resistance properties due to for example the impact of hail stones.
In a further subsidiary aspect, said further layer has a shore A hardness of 35 to 90. This allows the layer to absorb impacts and to weather in an improved manner. The likelihood of the outer layer peeling back due to several cycles of differing weather conditions is substantially reduced.
In a further subsidiary aspect, said layer of primarily rigid foamed plastics material is primarily polyurethane. This material is particularly suited for retaining its configuration and has improved thermal properties. Furthermore, it allows the use of a variety of fillers.
The cladding board may be further improved if the layer of primarily rigid foamed plastics material incorporates 20% to 50% fillers by weight. This reduces the percentage of plastics material used whilst by selecting the appropriate filler improvements with regards to the board's fire retarding properties, structural strength and weather resistance are improved.
In a further subsidiary aspect, said fillers comprise one or more from the group consisting o ground glass, ground limestone, mineral filler, flour, pulverised fuel ash (PFA), and fibres. The provision of fibres is particularly advantageous in terms of providing improved structural strength and since the further layer may be provided without the use of any fibres, the risk of an operator accidently interacting with a fibre is almost entirely done away with.
In a further subsidiary aspect, said layer of primarily rigid foamed plastics material incorporates glass fibres. These substantially improve the rigidity of the cladding board whilst an operator can still cut or trim the board using carpenter's tools.
This aspect particularly improves its weather resistance properties due to for example the impact of hail stones.
In a further subsidiary aspect, said further layer has a shore A hardness of 35 to 90. This allows the layer to absorb impacts and to weather in an improved manner. The likelihood of the outer layer peeling back due to several cycles of differing weather conditions is substantially reduced.
In a further subsidiary aspect, said layer of primarily rigid foamed plastics material is primarily polyurethane. This material is particularly suited for retaining its configuration and has improved thermal properties. Furthermore, it allows the use of a variety of fillers.
The cladding board may be further improved if the layer of primarily rigid foamed plastics material incorporates 20% to 50% fillers by weight. This reduces the percentage of plastics material used whilst by selecting the appropriate filler improvements with regards to the board's fire retarding properties, structural strength and weather resistance are improved.
In a further subsidiary aspect, said fillers comprise one or more from the group consisting o ground glass, ground limestone, mineral filler, flour, pulverised fuel ash (PFA), and fibres. The provision of fibres is particularly advantageous in terms of providing improved structural strength and since the further layer may be provided without the use of any fibres, the risk of an operator accidently interacting with a fibre is almost entirely done away with.
In a further subsidiary aspect, said layer of primarily rigid foamed plastics material incorporates glass fibres. These substantially improve the rigidity of the cladding board whilst an operator can still cut or trim the board using carpenter's tools.
4 In a further subsidiary aspect, the layer of primarily rigid foamed plastics material incorporates a rice-based fibre. The use of a natural product of this kind provides a product which is not only of improved strength but with reduced negative environmental impact.
In a further subsidiary aspect, said layer of primarily rigid foamed plastics material incorporates 30% to 60% air by volume. This allows the cladding board to appear relatively bulky whilst being of sufficient strength. It also substantially improves the thermal insulation properties of the board.
In a further subsidiary aspect, said further layer is primarily of a polyurethane elastomer.
This is particularly advantageous in order to create a chemical bond between the backing layer and the further layer. This does away with any requirement for employing adhesives between the several layers.
In a further subsidiary aspect, said polyurethane elastomer incorporates no air bubbles.
This allows the elastomeric layer to cope with weather fluctuations whilst a relatively smooth finish can be obtained. Alternatively, the polyurethane elastomer layer can incorporate in certain embodiments a relief in order for the cladding board to take the shape and configuration of a wood-based board, plastics, and/or stone.
In a further subsidiary aspect, said polyurethane elastomer incorporates one or more fillers selected from the group comprising ground glass, water scavengers, liquid fire retardants, recycled rubber, minerals and pulverised fuel ash (PFA).
The provision of liquid and powder fire retardants is particularly beneficial in terms of preventing the spread of a fire within a structure which has been clad by the cladding board. It also prevents an external fire from spreading into an enclosure which has been protected.
In a further subsidiary aspect, the cladding board further comprises a coating provided over said further layer, said coating being at least in part an aliphatic isocyanate. This is particularly beneficial for improving the aesthetic appeal of the board but as well providing an extra protective layer.
In a further subsidiary aspect, said backing layer and said further layer are chemically
In a further subsidiary aspect, said layer of primarily rigid foamed plastics material incorporates 30% to 60% air by volume. This allows the cladding board to appear relatively bulky whilst being of sufficient strength. It also substantially improves the thermal insulation properties of the board.
In a further subsidiary aspect, said further layer is primarily of a polyurethane elastomer.
This is particularly advantageous in order to create a chemical bond between the backing layer and the further layer. This does away with any requirement for employing adhesives between the several layers.
In a further subsidiary aspect, said polyurethane elastomer incorporates no air bubbles.
This allows the elastomeric layer to cope with weather fluctuations whilst a relatively smooth finish can be obtained. Alternatively, the polyurethane elastomer layer can incorporate in certain embodiments a relief in order for the cladding board to take the shape and configuration of a wood-based board, plastics, and/or stone.
In a further subsidiary aspect, said polyurethane elastomer incorporates one or more fillers selected from the group comprising ground glass, water scavengers, liquid fire retardants, recycled rubber, minerals and pulverised fuel ash (PFA).
The provision of liquid and powder fire retardants is particularly beneficial in terms of preventing the spread of a fire within a structure which has been clad by the cladding board. It also prevents an external fire from spreading into an enclosure which has been protected.
In a further subsidiary aspect, the cladding board further comprises a coating provided over said further layer, said coating being at least in part an aliphatic isocyanate. This is particularly beneficial for improving the aesthetic appeal of the board but as well providing an extra protective layer.
In a further subsidiary aspect, said backing layer and said further layer are chemically
5 cross-linked; thereby no separate adhesive links one layer to the other.
This allows the cladding board to appear as a single unitary composition despite the various layers fulfilling different functions.
In a second broad independent aspect, the invention provides a moulding process of producing a cladding board, comprising the steps of selecting a mould for forming a cladding board with a side with a tongue and a side with a groove to facilitate the attachment of the cladding board to another such cladding board; forming a layer which is primarily of an elastomer; forming a backing layer which is primarily of rigid foamed plastics material; and preventing said groove from being covered by said elastomer.
The advantages achieved in the context of the cladding board which have already been detailed above are in part due to the manufacturing process adopted.
Furthermore, it allows the configuration of the board to not only achieve the improvements mentioned above but it allows the board to be made to more closely resemble wood-based cladding products.
In a further subsidiary aspect, the method comprises the step of starting the moulding process with an in-mould coating of aliphatic isocyanate based medium.
Brief Description of the Figures Figure 1 shows a cross-sectional view of a cladding board.
Figure 2 shows a perspective view of the end of a cladding board.
Figure 3 shows a perspective view of the end of a cladding board in accordance with a further embodiment of the invention.
This allows the cladding board to appear as a single unitary composition despite the various layers fulfilling different functions.
In a second broad independent aspect, the invention provides a moulding process of producing a cladding board, comprising the steps of selecting a mould for forming a cladding board with a side with a tongue and a side with a groove to facilitate the attachment of the cladding board to another such cladding board; forming a layer which is primarily of an elastomer; forming a backing layer which is primarily of rigid foamed plastics material; and preventing said groove from being covered by said elastomer.
The advantages achieved in the context of the cladding board which have already been detailed above are in part due to the manufacturing process adopted.
Furthermore, it allows the configuration of the board to not only achieve the improvements mentioned above but it allows the board to be made to more closely resemble wood-based cladding products.
In a further subsidiary aspect, the method comprises the step of starting the moulding process with an in-mould coating of aliphatic isocyanate based medium.
Brief Description of the Figures Figure 1 shows a cross-sectional view of a cladding board.
Figure 2 shows a perspective view of the end of a cladding board.
Figure 3 shows a perspective view of the end of a cladding board in accordance with a further embodiment of the invention.
6 Figure 4 shows a perspective view of the end of a cladding board in accordance with a further embodiment.
Figure 5 shows a cladding board according to a further embodiment of the invention.
Detailed Description of the Figures Figure 1 shows a section 1 of a typical cladding board according to the invention. It incorporates a backing layer 2, a further layer 3 and a coating 4. The backing layer 2 is of 1o filled polyurethane rigid foam. This layer may itself have a thickness of between 10mm and 30mm. It has a relatively large proportion of air bubbles such as air bubble 5 distributed randomly throughout the layer. The air bubbles or closed cells of gas are of greater size in the centre of the backing layer whilst they are compressed in the outer portions of the backing layer. This allows the material to be denser in the outer portions compared to the core of the backing layer where the cells occupy a greater volume. The content of air in this layer may be between 30% and 70% in volume. In addition to the air bubbles a number of fibres such as fibres 6 are provided throughout the layer in order to increase its rigidity. The fibres may be of chopped glass fibre strands or other appropriate man-made fibrous material. Alternatively, a natural fibre such as that obtained from rice husks might be employed to provide the necessary increased rigidity. In addition to the fibres, other fillers are envisaged. In this layer of the cladding board 20%
to 50% fillers by weight is envisaged. The fillers may be mineral fillers coupled with ground glass or pulverised fuel ash (PFA). In addition, the backing layer which could also be referred to as a core layer may employ fire retardants.
Layer 3 is provided to cover the backing layer with regards to at least its top face. Layer 3 may be either an unfilled or a filled polyurethane elastomer. This elastomer may be pigmented. It may also contain fire retardants in either liquid or powder form along with other fillers such as water scavengers, recycled rubber, further elastomers, or even minerals. The shore A of the layer 3 may be selected between 35 and 90.
Figure 5 shows a cladding board according to a further embodiment of the invention.
Detailed Description of the Figures Figure 1 shows a section 1 of a typical cladding board according to the invention. It incorporates a backing layer 2, a further layer 3 and a coating 4. The backing layer 2 is of 1o filled polyurethane rigid foam. This layer may itself have a thickness of between 10mm and 30mm. It has a relatively large proportion of air bubbles such as air bubble 5 distributed randomly throughout the layer. The air bubbles or closed cells of gas are of greater size in the centre of the backing layer whilst they are compressed in the outer portions of the backing layer. This allows the material to be denser in the outer portions compared to the core of the backing layer where the cells occupy a greater volume. The content of air in this layer may be between 30% and 70% in volume. In addition to the air bubbles a number of fibres such as fibres 6 are provided throughout the layer in order to increase its rigidity. The fibres may be of chopped glass fibre strands or other appropriate man-made fibrous material. Alternatively, a natural fibre such as that obtained from rice husks might be employed to provide the necessary increased rigidity. In addition to the fibres, other fillers are envisaged. In this layer of the cladding board 20%
to 50% fillers by weight is envisaged. The fillers may be mineral fillers coupled with ground glass or pulverised fuel ash (PFA). In addition, the backing layer which could also be referred to as a core layer may employ fire retardants.
Layer 3 is provided to cover the backing layer with regards to at least its top face. Layer 3 may be either an unfilled or a filled polyurethane elastomer. This elastomer may be pigmented. It may also contain fire retardants in either liquid or powder form along with other fillers such as water scavengers, recycled rubber, further elastomers, or even minerals. The shore A of the layer 3 may be selected between 35 and 90.
7 The further layer may alternatively have a much higher inherent flexibility.
The shore level may be selected to offer a cushioning effect. The inherent flexibility of the further layer may be higher than that of the rigid backing layer. This aspect particularly improves its weather resistance properties due to for example the impact of hail stones.
Due to the selection of materials for both layer 2 and layer 3 chemical cross-linking arises which creates excellent adhesion between the core and its topping without any requirement for a separate adhesive.
Optionally, a further top layer is provided such as top layer 4 which provides an improved finish. This top layer maybe based on aliphatic isocyanate. Other materials of a similar category may be employed in this context. This selection of material however is particularly suited for cross-linking with layer 3 in order to provide a layer-wise construction which holds together as an integral unit without the use of adhesives. The thickness of layer 4 may be much less than a millimetre and typically of the order of the thickness of a typical paint. Layer 3 however is preferably of Imm to 5mm in thickness.
The process which is preferred in the production of the cladding board is a moulding process. The first step in the process is to place an in-mould coating consisting of an aliphatic isocyanate based medium applied in one or more full or partial layers (each layer having a thickness similar to that of paint). Layer 3 which might be a hybrid polyurethane is applied to cross-link with the coating 4 to form a hard or alternatively a resilient backing to the coating. Once this is applied, another form of polyurethane is applied.
This polyurethane is that of layer 2 and would contain a wide spectrum of fillers. This layer would also readily cross-link with the previous layer 3 during the curing process. In order to control the expansion of the foam polyurethane an encapsulating mould box is employed which constrains the expansion within the mould itself. The cladding board lends itself to being cut or trimmed using carpenter's tools.
Figure 2 shows a cladding board 7 with a filled polyurethane rigid foam layer
The shore level may be selected to offer a cushioning effect. The inherent flexibility of the further layer may be higher than that of the rigid backing layer. This aspect particularly improves its weather resistance properties due to for example the impact of hail stones.
Due to the selection of materials for both layer 2 and layer 3 chemical cross-linking arises which creates excellent adhesion between the core and its topping without any requirement for a separate adhesive.
Optionally, a further top layer is provided such as top layer 4 which provides an improved finish. This top layer maybe based on aliphatic isocyanate. Other materials of a similar category may be employed in this context. This selection of material however is particularly suited for cross-linking with layer 3 in order to provide a layer-wise construction which holds together as an integral unit without the use of adhesives. The thickness of layer 4 may be much less than a millimetre and typically of the order of the thickness of a typical paint. Layer 3 however is preferably of Imm to 5mm in thickness.
The process which is preferred in the production of the cladding board is a moulding process. The first step in the process is to place an in-mould coating consisting of an aliphatic isocyanate based medium applied in one or more full or partial layers (each layer having a thickness similar to that of paint). Layer 3 which might be a hybrid polyurethane is applied to cross-link with the coating 4 to form a hard or alternatively a resilient backing to the coating. Once this is applied, another form of polyurethane is applied.
This polyurethane is that of layer 2 and would contain a wide spectrum of fillers. This layer would also readily cross-link with the previous layer 3 during the curing process. In order to control the expansion of the foam polyurethane an encapsulating mould box is employed which constrains the expansion within the mould itself. The cladding board lends itself to being cut or trimmed using carpenter's tools.
Figure 2 shows a cladding board 7 with a filled polyurethane rigid foam layer
8 in which are formed a tongue 9 and a groove 10 in its respective upper and lower side.
The groove may either be formed during the moulding process or cut out as a separate step in the manufacturing process. Directly over the outer face of layer 8, there is provided a polyurethane elastomer 11 which protects and seals the closed or open cell portions of layer 8. In this configuration layer 11 covers the outside portion 12 of tongue 9. This 5 configuration may facilitate an improved attachment of the tongue into the groove of a corresponding cladding board.
Figure 3 shows a further cladding board generally referenced 13 with a polyurethane elastomer provided on both the outer and inner surfaces of tongue 14.
In a further embodiment, as shown in figure 4, both the tongue and the groove can be entirely free of any polyurethane elastomer. Elastomer 15 of cladding board 16 is limited to the outer most surface of the board.
Figure 5 shows a cladding board with a front face 18 of polyurethane elastomer 18 and a backing layer 19 of closed-cell foamed polyurethane. Closed-cell foamed polyurethane is potentially an inventive option for any of the preceding embodiments. The rear face 20 of the backing layer is sloped. In a lower portion of the board, a cut-out portion 21 is provided. A projection 22 is provided on one side of the lower portion whilst said cut-out portion 21 fulfils the function of a groove. The board progressively narrows towards the upper portion which forms in effect a tongue for engagement with cut-out 21.
The elastomeric layer extends over said tongue in order to facilitate the seal between adjacent boards when assembled together.
The groove may either be formed during the moulding process or cut out as a separate step in the manufacturing process. Directly over the outer face of layer 8, there is provided a polyurethane elastomer 11 which protects and seals the closed or open cell portions of layer 8. In this configuration layer 11 covers the outside portion 12 of tongue 9. This 5 configuration may facilitate an improved attachment of the tongue into the groove of a corresponding cladding board.
Figure 3 shows a further cladding board generally referenced 13 with a polyurethane elastomer provided on both the outer and inner surfaces of tongue 14.
In a further embodiment, as shown in figure 4, both the tongue and the groove can be entirely free of any polyurethane elastomer. Elastomer 15 of cladding board 16 is limited to the outer most surface of the board.
Figure 5 shows a cladding board with a front face 18 of polyurethane elastomer 18 and a backing layer 19 of closed-cell foamed polyurethane. Closed-cell foamed polyurethane is potentially an inventive option for any of the preceding embodiments. The rear face 20 of the backing layer is sloped. In a lower portion of the board, a cut-out portion 21 is provided. A projection 22 is provided on one side of the lower portion whilst said cut-out portion 21 fulfils the function of a groove. The board progressively narrows towards the upper portion which forms in effect a tongue for engagement with cut-out 21.
The elastomeric layer extends over said tongue in order to facilitate the seal between adjacent boards when assembled together.
Claims (22)
1. A cladding board comprising a side with a tongue and a side with a groove or cut-out portion to facilitate the attachment of the cladding board to another such cladding board;
wherein said board incorporates a backing layer of primarily rigid foamed plastics material; and a further layer located over said backing layer being primarily of an elastomer or polyurea; said groove being of exposed rigid foamed plastics material without any elastomer or polyurea covering being provided in said groove or cut-out portion; wherein said further layer has greater inherent flexibility than said backing layer.
wherein said board incorporates a backing layer of primarily rigid foamed plastics material; and a further layer located over said backing layer being primarily of an elastomer or polyurea; said groove being of exposed rigid foamed plastics material without any elastomer or polyurea covering being provided in said groove or cut-out portion; wherein said further layer has greater inherent flexibility than said backing layer.
2. A cladding board according to claim 1, wherein said further layer covers at least the front portion of said tongue.
3. A cladding board according to either claim 1 or claim 2, wherein said layer of primarily rigid foamed plastics material has a shore D hardness of 35 to 75.
4. A cladding board according to any of claims 1 to 3, wherein said further layer has a shore A hardness of 35 to 90.
5. A cladding board according to any of claims 1 to 3, wherein said further layer is an inherently flexible layer.
6. A cladding board according to any of the preceding claims, wherein said layer of primarily rigid foamed plastics material is primarily polyurethane.
7. A cladding board according to claim 6, wherein said layer of primarily rigid foamed plastics material incorporates 20 to 50% fillers by weight.
8. A cladding board according to claim 7, wherein said fillers comprise one or more from the group consisting of ground glass, pulverised fuel ash (PFA), and fibres.
9. A cladding board according to any of the preceding claims, wherein said layer of primarily rigid foamed plastics material incorporates glass fibres.
10. A cladding board according to any of the preceding claims, wherein said layer of primarily rigid foamed plastics material incorporates a rice based fibre.
11. A cladding board according to any of the preceding claims, wherein said layer of primarily rigid foamed plastics material incorporates 30 to 60% air by volume.
12. A cladding board according to any of the preceding claims, wherein said further layer is primarily of polyurethane elastomer.
13. A cladding board according to claim 12, wherein said polyurethane elastomer incorporates no air bubbles.
14. A cladding board according to either claim 12 or claim 13, wherein said polyurethane elastomer incorporates one or more fillers selected from the group comprising ground glass, water scavengers, liquid fire retardants, powder fire retardants, recycled rubber, minerals and pulverised fuel ash (PFA).
15. A cladding board according to any of the preceding claims, further comprising a coating provided over said further layer; said coating being at least in part an aliphatic isocyanate.
16. A cladding board according to any of the preceding claims, wherein said backing layer and said further layer are chemically cross-linked; thereby no separate adhesive links one layer to the other.
17. A cladding board according to either claim 15 or claim 16, wherein said coating and said further layer are chemically cross-linked; thereby no separate adhesive links one layer to the other.
18. A cladding board substantially as hereinbefore described and/or illustrated in any appropriate combination of the accompanying text and/or figures.
19. A moulding process of producing a cladding board, comprising the steps of selecting a mould for forming a cladding board with a side with a tongue and a side with a groove or cut-out portion to facilitate the attachment of the cladding board to another such cladding board; forming a layer which is primarily of an elastomer or polyurea; forming a backing layer which is primarily of rigid foamed plastics material; and preventing said groove or cut-out portion from being covered by said elastomer or polyurea; said layer having greater inherent flexibility than said backing layer.
20. A process according to claim 19, comprising the step of covering at least the front portion of said tongue with said layer.
21. A method according to either claim 19 or claim 20, comprising the step of starting the moulding process with an in-mould coating of aliphatic isocyanate based medium.
22. A moulding process substantially as hereinbefore described and/or illustrated in any appropriate combination of the accompanying text and/or figures.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1111994.8 | 2011-07-13 | ||
GB1111994.8A GB2492804A (en) | 2011-07-13 | 2011-07-13 | Insulating cladding boards with weatherproofing layer |
GBGB1116785.5A GB201116785D0 (en) | 2011-07-13 | 2011-09-29 | Cladding boards |
GB1116785.5 | 2011-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2783059A1 true CA2783059A1 (en) | 2013-01-13 |
Family
ID=44586492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2783059A Abandoned CA2783059A1 (en) | 2011-07-13 | 2012-07-13 | Cladding boards |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2546433A3 (en) |
CA (1) | CA2783059A1 (en) |
GB (2) | GB2492804A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2512100A (en) * | 2013-03-20 | 2014-09-24 | Syntek Ltd | Improvements in and relating to a synthetic surface covering |
GB2568701B (en) * | 2017-11-23 | 2020-08-12 | Reco Surfaces Ltd | Method for mounting wall panels & wall panel system |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8428459D0 (en) * | 1984-11-10 | 1984-12-19 | Plasmor Insulation Ltd | Wall insulation |
EP0192627B1 (en) * | 1985-02-08 | 1992-05-06 | G. Levasseur S.A. | Coating for building materials and process for producing the constituents of this coating |
DE4244672C2 (en) * | 1992-01-04 | 1996-01-25 | Heinemann Herbert | Prefabricated molded part for cladding building walls |
CA2389037C (en) * | 1999-10-08 | 2009-12-15 | Milwaukee Composites, Inc. | Panels utilizing a precured reinforced core and method of manufacturing the same |
US7762040B2 (en) * | 2004-08-12 | 2010-07-27 | Progressive Foam Technologies, Inc. | Insulated fiber cement siding |
US20090104407A1 (en) * | 2007-10-17 | 2009-04-23 | Walter Alexander Johnson | Prefabricated roofing panel composite |
US8176701B2 (en) * | 2006-05-10 | 2012-05-15 | Cullen Leslie D | Insulative siding apparatus and method of making the same |
CN201047144Y (en) * | 2007-06-11 | 2008-04-16 | 林永飞 | Polyurethane tongue-groove composite board |
CN101294439B (en) * | 2008-06-16 | 2011-12-21 | 吴绍元 | Multifunctional energy-saving decorative board |
US7954292B2 (en) * | 2008-09-12 | 2011-06-07 | Progressive Foam Technologies, Inc. | Insulated siding system |
-
2011
- 2011-07-13 GB GB1111994.8A patent/GB2492804A/en not_active Withdrawn
- 2011-09-29 GB GBGB1116785.5A patent/GB201116785D0/en not_active Ceased
-
2012
- 2012-07-13 CA CA2783059A patent/CA2783059A1/en not_active Abandoned
- 2012-07-13 EP EP12176398.1A patent/EP2546433A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP2546433A3 (en) | 2015-11-18 |
GB201111994D0 (en) | 2011-08-31 |
GB201116785D0 (en) | 2011-11-09 |
EP2546433A2 (en) | 2013-01-16 |
GB2492804A (en) | 2013-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2957691B1 (en) | Panel suitable for assembling a waterproof floor or wall covering, method of producing a panel | |
EP3227506B1 (en) | A roofing, cladding or siding product | |
US20120073225A1 (en) | Planks and/or boards | |
US7351462B2 (en) | Synthetic roofing shingle or tile | |
US11149446B2 (en) | Floor panel comprising a ceramic material or a natural stone | |
KR101306421B1 (en) | Block deck using concrete foam | |
US20070266562A1 (en) | Synthetic Roofing Shingle or Tile | |
US11649641B2 (en) | Panel and method of producing a panel | |
EP2546433A2 (en) | Composite cladding boards | |
EP2614956B1 (en) | Modular laminated prefabricated element for flooring and method for making it | |
CN202324521U (en) | Waterproof and mute composite floor | |
CN104989069B (en) | A kind of preparation method of the PVC floor with insulation construction | |
KR101206929B1 (en) | Method for installation of materials for reduction of floor impact sound and building structure thereby | |
CN205604658U (en) | Unsmooth formula structural cohesion's wood -Plastic | |
CN205348639U (en) | Colorful compound softwood | |
US20230102628A1 (en) | Flooring panel | |
KR101252703B1 (en) | Forming mat and method for manufacturing the same | |
KR100980143B1 (en) | Watertight structure of shock-absorbing layer for building bottom | |
JP7120390B2 (en) | flooring | |
US20220347978A1 (en) | Flooring panel | |
KR200362797Y1 (en) | PVC waterproofing sheet with foaming layer | |
KR101458750B1 (en) | synthetic wood and method of manufacturing the same | |
EP4097310A1 (en) | Panel and method of producing such a panel | |
CN213767542U (en) | Double-layer co-extrusion wood-plastic profile structure | |
NL2013100B1 (en) | Panel suitable for installation of a waterproof floor or wall covering, method of producing a panel. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Discontinued |
Effective date: 20180713 |