Heat/sound-insulating roof tile with wooden part

Abstract

 The present invention relates to a heat/sound-insulating metal-type roof tile which consists of three layers. On the outer side it is made of a cover made of iron sheet (1), or other metal, alloy or material, in the form of roof tile, whereas in the inner side towards the building it comprises wood (3), or any other suitable material. Between these two layers a foamed insulating material (2), directly adhered to these, is arranged. The insulating material is usually polyurethane foam, or swollen polystyrene or other suitable material. On the side, the three layers are connected by marine plywood, or other material so that diffusion of the insulating material is prevented. The produced sheets may be connected between them to cover roofs of any dimension.

Description

[0001] The present invention is a modification of the patent no. 1007169 filed in OBI on 23/2/2010 with application no. 20100100102.

[0002] The said invention relates to a heat/sound-insulating roof tile having an inner side made of wood and an intermediate insulation, which constitutes an integrated solution for the roofs of houses and other buildings. The three layers in the finally produced product provide better insulation, an aesthetically perfect result and is ecological.

[0003] Until now there have been various systems of metal roof tiles in the market. The metal roofs in the form of roof tiles were adopted since they provide a similar aesthetic effect to the conventional roof tiles, however their cost is lower and their weight smaller. Eventually, metal roofs in the form of roof tiles were developed, wherein the outer side consists of iron sheet, copper, aluminum or other suitable metal, in the form of roof tiles, in the middle a suitable insulating material is positioned, which may be polyurethane foam, mineral wool, or even swollen polystyrene, and finally on the inner side, towards the house, a layer consisting again of iron sheet or other suitable material, the product painted and shaped as desired. The disadvantages of such a product relate both to its technical aspect and its aesthetic one.

[0004] On the contrary, the present invention provides a technically and aesthetically perfect product which covers all the needs of a house or building. The said roof tile allows the formation of a roof presenting a perfect result, mimicking a conventional ceramic roof, while in parallel it is more ecological than the already available system with better heat-insulation and sound-insulation properties. Furthermore, due to the wooden part in the inner side of the roof, a "warmer" environment is created, while heat bridges are obviated, which constitute one of the more significant problems of the metal roofs. Other significant advantages regard the reduction in the production time of the final product and the flexibility regarding the desired dimensions depending on the customer's needs.

[0005] These and other features, as well as advantages of the present invention will be apparent by the following detailed description. The invention will be better understood with reference to the accompanying figure, which constitutes an exemplary embodiment thereof.

[0006] Figure 1 shows in perspective view the produced heat/sound-insulating roof tile with an inner wooden layer.

[0007] The invention relates to a new type of heat/sound-insulating roof tile, which has on the outer side iron sheet, aluminum or other suitable metal, consisting of three layers. The outer layer, figure 1, consists of a metal cover (1) shaped in the form of a roof tile. The material employed is mainly iron sheet, but also copper, aluminum or other metal or material may be used. The shape may be the conventional Dutch roof tile, or even Roman, French or any other type, depending on the requirements and desires of the customer. The inner side of the iron sheet is covered with a primer, so that a foamed insulating material (2), which is the intermediate layer, is adhered. The purpose of this material is the effective insulation of the buildings from the side of the roof both against heat and against sound. Depending on the desired results, as insulating material, polyurethane foam, mineral wool, which is heavier and has poor heat-insulation properties but better sound-insulation properties and fire resistance, swollen polystyrene or any other type of insulating material.

[0008] The inner side, contrary to the current system which consisted of painted iron sheet or other metal, or a wooden layer on the inner iron sheet was used, consists of wood (3) directly adhered on the insulating material. The selection of the inner surface is from a group of materials, such as planed timber, chipboard, MDF, OSB, plywood, plasterboard or any other suitable material. The wooden inner surface provides various advantages, since apart from the aesthetic result, the whole product is more ecological, whereas the absence of an inner metal joint to the iron sheet eliminates heat bridges, i.e. the parts of the housing of the building which are poorly insulated or non-insulated, thus presenting a reduced resistance to heat flow. The space is thus "warmer" and comfortable, while if an increased sound insulation is required, grooves of a specific depth are formed on the wood, which do not affect its mechanical strength and contribute to the intended purpose.

[0009] In the foamed insulating material (2), rods of specific dimensions may be arranged, so that on one hand they block the flow of the insulating material outwards, on the other hand they increase the rigidity of the heat-insulating roof tile. On the sides, the system is further sealed with suitable materials, so that diffusion of material is prevented and in parallel the heat insulation and the rigidity of the system is increased. As materials for the sides, plywood, marine plywood, plastic, aluminum, metal strap, paper or even polyamide providing additional heat insulation and rigidity. These materials are exemplary and non-limiting, and the selection may depend on the individual needs and requirements.

[0010] The production of the system is in continuous flow and the obtained sheets are cut to predetermined sizes. The production of the specific final product may also be effected manually on a press for lower quantities. In case that joining between two or more pieces is required to cover the roof, the parts can be connected with the respective overlaps and the suitable connection arrangement.

[0011] It should be noted that the description of the invention was made with reference to an exemplary, non-limiting embodiment. Thus, any change or modification regarding the shape, size, dimensions, manufacture and assembly materials and components employed, application fields, as long as not constituting a new inventive step and not contributing to the already known art, are considered as included within the scope of the present invention.

Claims

1. Heat/sound-insulating roof tile with a wooden part, characterized in that it consists of three layers, wherein the outer side consists of a metal cover (1) made of iron sheet, copper, aluminum, or metal alloy and shaped to a roof tile, which may be Dutch, Roman, or French type, internally covered with a primer so that a foamed insulating material (2) constituting the intermediate layer is adhered, in which polyurethane foam or mineral wool or swollen polystyrene is employed, and then a wooden layer (3) of the planed timber, chipboard, MDF, OSB, plywood, or plasterboard type, which constitutes the third layer.

2. Heat/sound-insulating roof tile with a wooden part according to claim 1, characterized in that in the foamed insulating material (2) rods are arranged which prevent diffusion of the material and increase the rigidity of the system.

3. Heat/sound-insulating roof tile with a wooden part according to claim 1, characterized in that its three layers are connected on the side with a material selected from plywood, marine plywood, plastic, aluminum, metal strap, paper or polyamide, so that diffusion of the insulating material is prevented and the insulation capacity of the system is further increased.

Drawing