WO1999060222A1 - Heat reflecting foil - Google Patents

Heat reflecting foil Download PDF

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Publication number
WO1999060222A1
WO1999060222A1 PCT/HU1999/000040 HU9900040W WO9960222A1 WO 1999060222 A1 WO1999060222 A1 WO 1999060222A1 HU 9900040 W HU9900040 W HU 9900040W WO 9960222 A1 WO9960222 A1 WO 9960222A1
Authority
WO
WIPO (PCT)
Prior art keywords
foil
heat
layer
plastic
vapour
Prior art date
Application number
PCT/HU1999/000040
Other languages
French (fr)
Inventor
László PIRITYI
Original Assignee
Pirityi Laszlo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from HU9800152U external-priority patent/HU1423U/en
Priority claimed from HU9800150U external-priority patent/HU1418U/en
Priority claimed from HU9800151U external-priority patent/HU1424U/en
Application filed by Pirityi Laszlo filed Critical Pirityi Laszlo
Priority to AU39494/99A priority Critical patent/AU3949499A/en
Publication of WO1999060222A1 publication Critical patent/WO1999060222A1/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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/08—Means for preventing radiation, e.g. with metal foil
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B2001/7691—Heat reflecting layers or coatings

Definitions

  • the subject of the invention is a heat reflecting foil which, in both vapour-tight and vapour-permeable versions, on the heat insulation of buildings, rooms and vehicles ensures the reflection of heat radiation and with this reduces heat loss to a large extent.
  • the solution consists of a plastic foil backed with insulating material strips.
  • the insulating material strips are mounted as ribbon strips then they are formed as heat insulating sheets individually mounted with polyurethane, polystyrene foam or extruded polystyrene in the form of cut to size or pieced strips, in which there are diffusion channels cut in the surface opposite to the mounting surface, and on this surface a metal foil is mounted.
  • the heat insulation strips may also be mounted onto the mounting material strengthened with a woven textile, and the mounting material can be applied with some kind of adhesion increasing surface treatment.
  • the invention then is on the one hand a heat reflecting, vapour-tight backing foil, which serves for the reflection of heat radiation and vapour sealing in the heat insulation of buildings, which foil consists of a heat reflecting layer and a protective lay covering that.
  • a feature of it is that on both sides of the heat reflecting aluminium layer formed by vapour deposition or as a foil there are plastic layers positioned as protective layers.
  • the invention of the other hand is an aircushion, heat reflecting foil, which serves for the reflection of heat radiation and vapour sealing in the heat insulation of buildings, which foil consists of a heat reflecting layer and a protective lay covering that.
  • a feature of it is that on both sides of the heat reflecting aluminium layer formed by vapour deposition or as a foil there are plastic layers positioned as protective layers and with aircushion, plastic heat insulation on the one side of the aluminium layer on the plastic layer.
  • the invention is a heat reflecting foil with a felt layer, which serves for the reflection of heat radiation and vapour sealing in the heat insulation of buildings, which foil consists of a heat reflecting layer and a protective lay covering that.
  • a feature of it is that on both sides of the heat reflecting aluminium layer formed by vapour deposition or as a foil there are plastic layers positioned as protective layers, furthermore, there is a felt layer on one of the plastic layers, and preferably the aluminium layer and the plastic layers have perforations.
  • the material of the plastic layers is a plastic that softens with heat, preferably polyester, polyethylene, polyamide, polypropylene, polycarbonate or PVC.
  • the thickness of the aluminium layer is preferably between 0.2 run and 80 ⁇ m, the thickness of the plastic layers between 8 ⁇ m and 200 ⁇ m, the thickness of the aircushion heat insulation layer between 1 mm and 20 mm, the thickness of the felt layer in a given case between 0.2 mm and 50 cm, and the diameter of the perforation openings in a given case between 50 ⁇ m and 1.5 mm.
  • Figure 1 shows a section picture of the vapour-tight, heat reflecting backing foil according to the invention.
  • Figure 2 shows the structural form of the aircushion, heat reflecting foil according to the invention.
  • Figure 3 shows the structural form of the heat reflecting foil according to the invention supplied with felt layer.
  • Figure 1 shows a section picture of the vapour-tight, heat reflecting backing foil according to the invention.
  • the aluminium layer 2, the middle layer of the vapour-tight backing foil can be seen on the figure, which is covered by plastic layers 1, 3 on both sides.
  • the plastic layers 1, 3 on both sides.
  • plastic layer 3 is applied to this.
  • the material of the plastic layers 1, 3 is preferably polyester, polyethylene, polyamide, polypropylene or polycarbonate.
  • the basis of the backing foil is UN stable polyester or polyamide foil, which forms the plastic layer 1.
  • the aluminium layer 2 is formed with metal vapour deposition, or with the positioning of aluminium foil.
  • Plastic layer 3 is placed on the other side of the aluminium foil 2 also in the form of a plastic foil.
  • the plastic foils 1, 3 can be of similar material with symmetrical form, or they may be of different materials.
  • the reflecting aluminium layer 2 created in this way has a long life, its surface is protected from damp and from the oxygen in the air by the plastic layers 1, 3, due to this the aluminium does not oxidise, and does not lose its heat reflecting ability.
  • the backing foil according to figure 1 is used in the following way in roof insulation.
  • the 100-120 cm wide backing foil strips are fixed to the rafters with spacer strips parallel to the line of the eaves. It is favourable to stick the edges of the individual strips together with adhesive strips for the purpose of uniform vapour-tightness.
  • the vapour-tightness between the external and internal spaces is ensured by plastic layers 1, 3 of the backing foil, and the reflection of heat radiation is ensured by the aluminium layer 2.
  • Figure 2 shows the structural form of the aircushion, heat reflecting foil according to the invention.
  • the plastic layers 1, 3 On both sides of the heat reflecting aluminium layer 2 there are the plastic layers 1, 3, furthermore, on the one side the aircushion plastic heat insulation 4 is positioned on plastic layer 3.
  • the formation of the aluminium layer 2 is similar to the solution that can be seen in figure 1, it is applied as a foil or formed using metal vapour deposition.
  • the plastic layers 1, 3 are mainly for the purpose of protecting the aluminium layer 2, they do have a heat insulation role, but the heat insulation is carried out by the aircushion plastic heat insulation 4 positioned with a heat process on the plastic layer 3.
  • the material of the plastic layers 1, 3 is preferably polyester, polyethylene, polyamide, polypropylene, polycarbonate or PNC.
  • the method of preparation, manufacture and connection of the foil base according to figure 2, the plastic layers 1, 3 and the aluminium layer 2 between them is the same as the foil manufacture presented in figure 1, and preferably the foil presented in figure 1 is used as a basic material for the preparation of the heat insulated foil according to figure 2.
  • the aircushion plastic heat insulation 4 is fixed to the plastic insulation layer 3 produced in this way with a further heat technology process e.g. heating or with gluing.
  • a possible concrete embodiment of the invention according to figure 2 it can be used as roof foil in normally ventilated roof structures. Its fixing is simple, and can be fitted quickly.
  • the foil is to be fitted to the external plane of the rafters with overlaps. Care is to be taken that the shiny, heat-reflecting surface on the side facing the tiles is uniform and reflecting. Fixing to the rafters can take place using staples, tacks or spacing strips.
  • the ventilation of the space between the foil and the insulation material is realised if the foil only extends up to within 15 cm of the roof ridge.
  • the foil according to figure 2 is also suitable for placing under floor heating, as in the case of floor heating the heat is not only transmitted towards the living area but also in the opposite direction.
  • the foil according to the invention reduces the warming of the space underneath the heating pipes, and reflects the heat radiation radiating in its direction back to the space to be heated.
  • floor heating if the foil is built in the amount of heat flowing in the direction of the space to be heated increases by 6%, and the heat loss in the opposite direction is reduced by 19%.
  • the application of the foil also ensures vapour tightness, reduces step noise and ensures heat insulation.
  • the foil according to figure 2 can be used as a heat mirror behind radiators placed in such a way so that the reflecting side faces the radiator, and so with the reflection of the heat radiation flowing towards the wall an energy saving of 8-15% can be attained.
  • the foil according to figure 2 is also suitable for the reduction of the warming up of the interiors of vehicles. This time the foil is positioned inside the vehicle behind the windscreen so that the reflecting side faces outwards, in this way 70% of the heat rays do not get into the passenger compartment. So the damaging effect of the strong summer sun radiation can be greatly reduced with the foil according to the invention.
  • the foil according to figure 2 can be favourably used indoors or outdoors in the interest of keeping pool water clean and at a pleasant temperature.
  • the foil reflects the heat radiation emitted from the pool water, it prevents the evaporation of the water, its cooling, and reduces the heat loss of the pool. It prevents the water from becoming contaminated and also prevents the growth of alga. As a result of this it reduces the heating costs, the amount of chemicals used and the time needed to clean the pool. In the case of interior pools it is not necessary to use the vapour extraction equipment for such a period of time.
  • the foil according to figure 2 used as a pool cover is prepared in a water touching and an above water surface construction. Its form is in accordance with the form of the pool, oval, rectangular, circular, or of an individual form.
  • the surface is natural or blue, the colour of the plastic covered aluminium covering is silver or golden metal. It can be used with the best efficiency, if it is floating on the water to its complete extent.
  • the foil In the case of a stressed water surface pool the foil has stable fixtures that are resistant to the wind. In a given case a rolling up device can be connected to it.
  • Figure 3 shows the structural form of the heat reflecting foil according to the invention supplied with felt layer 5.
  • the aluminium layer is also formed using foil or metal vapour deposition.
  • the plastic layers 1, 3 placed on the two sides serve as protection for the aluminium layer 2, but they also have a heat insulation role.
  • the plastic layers 1, 3 together with the aluminium layer have perforations 6.
  • the material of the plastic layers 1, 3 is preferably polyester, polyethylene, polyamide, polypropylene, polycarbonate or PNC.
  • the task of the felt layer 5 is heat insulation, to reduce the possibility of vapour condensation, and due to its large surface area to accelerate the transmission and evaporation the water vapour.
  • the method of preparation, manufacture and connection of the foil base according to figure 3, the plastic layers 1, 3 and the aluminium layer 2 between them is the same as the foil manufacture presented in figure 1, and preferably the foil presented in figure 1 is used as a basic material for the preparation of the foil according to figure 3.
  • the felt layer 5 is fixed by a further heat technology process, e.g. heating or gluing to the plastic layer 3 of the foil produced in this way, then after this with the help of a roller with pins fitted according to the size and density of the perforations 6 to be formed, the perforations 6 are formed by punching in a part of the surface of the foil or over all of it.
  • the plastic layers 1, 3 and the alumimum layer 2 are perforated with cone shaped perforations so that the water vapour can escape outwards but not inwards, so the ventilation of the internal space is solved.
  • the formation of the perforations is conical, getting smaller outwards, because the water vapour needs to be let out outwards.
  • Water vapour is less able to pass through the foil in the other direction, and because of possible mechanical pressure it closes up. From this direction the foil is water tight, because the diameter of the perforations on this surface is so small that possibly condensed water droplets cannot go through these holes under normal pressure conditions.
  • the foil according to the invention can be preferably applied as roof foil so that it is placed on the outer side of the rafters, then it is not necessary to form an air gap between the foil and the heat insulation. Its fixing is simple, and can be fitted quickly.
  • the foil is to be fitted to the external plane of the rafters with overlaps. Care is to be taken that the shiny, heat reflecting surface on the side facing the tiles is uniform and reflecting, while the felt layer 5 is on the inner, heat insulation side. Fixing to the rafters can take place using staples, tacks or spacing strips. The ventilation of the space between the foil and the insulation material is not separately necessary.
  • the heat reflecting surface formed by the aluminium layer 2 reflects 92% of the heat radiation, so in summer it protects the roof space from over-heating. According to its operation the heated air in the space between the roof covering material e.g. roof tiles and the foil flows upwards and as a result of the chimney effect the heat escapes through the vents or through the ridge tiles. Beside the heat reflecting and heat insulation features of the foil according to the invention it is water tight and resistant to chemicals, so it has a long life-span. In the case of its use -li ⁇
  • An advantage of the solution according to the invention is that contrary to traditional insulation a significant part of the heat radiation does not escape through the insulation material, so, for example, in the winter season it protects the roof space from cooling, because the heat radiation is reflected back into the heated space.
  • a further advantage is that it protects the heat insulation material from the water vapour forming in the internal space and prevents the uncomfortable, unhealthy fibreglass or mineral wool dust from getting into the living area.
  • the foil according to the invention is heat reflecting, heat insulating, resistant to chemicals and has a long life span. With its use the heating costs of the built in space are reduced by 20%.

Abstract

The subject of the invention is a heat reflecting foil which, in both vapour-tight and vapour-permeable versions, on the heat insulation of buildings, rooms and vehicles ensures the reflection of heat radiation and with this reduces heat loss to a large extent. The invention then is on the one hand a heat reflecting, vapour-tight backing foil, which serves for the reflection of heat radiation and vapour sealing in the heat insulation of buildings, which foil consists of a heat reflecting layer and a protective lay covering that. A feature of it is that on both sides of the heat reflecting aluminium layer (2) formed by vapour deposition or as a foil there are plastic layers (1, 3) positioned as protective layers.

Description

Heat reflecting foil
The subject of the invention is a heat reflecting foil which, in both vapour-tight and vapour-permeable versions, on the heat insulation of buildings, rooms and vehicles ensures the reflection of heat radiation and with this reduces heat loss to a large extent.
From a heat-technology point of view one of the most significant problems of traditional heat insulation is that in winter a significant part of the heat escapes from the heated space in heat radiation through the insulation material, and in summer as a result of the radiation of the sun a large amount of heat, also in heat radiation, gets into the insulated space. To solve this problem usually preferably an aluminium heat reflecting layer, heat mirror is installed together with the heat insulation.
According to the state of technology patent description No. HU 212 389 presents an insulation material that is suitable for the tight insulation of roof areas. The solution consists of a plastic foil backed with insulating material strips. The insulating material strips are mounted as ribbon strips then they are formed as heat insulating sheets individually mounted with polyurethane, polystyrene foam or extruded polystyrene in the form of cut to size or pieced strips, in which there are diffusion channels cut in the surface opposite to the mounting surface, and on this surface a metal foil is mounted. The heat insulation strips may also be mounted onto the mounting material strengthened with a woven textile, and the mounting material can be applied with some kind of adhesion increasing surface treatment.
With the working out of the solution according to the invention our aim was to create a heat reflecting foil that can be used for different functions, which ensures the reflection of heat, resists the damaging external temperature effects, and in the long term ensures the protection of the reflecting surface.
On the creation of the solution according to the invention we recognised that if we form the heat reflecting foil from an aluminium heat reflecting layer applied as a foil or formed by vapour deposition, and on both sides of this there are plastic foils as protective layers, on which in the given case there is an air cushion or felt layer, or it the backing foil has perforations formed in it then the set aim may be reached.
The invention then is on the one hand a heat reflecting, vapour-tight backing foil, which serves for the reflection of heat radiation and vapour sealing in the heat insulation of buildings, which foil consists of a heat reflecting layer and a protective lay covering that. A feature of it is that on both sides of the heat reflecting aluminium layer formed by vapour deposition or as a foil there are plastic layers positioned as protective layers.
The invention of the other hand is an aircushion, heat reflecting foil, which serves for the reflection of heat radiation and vapour sealing in the heat insulation of buildings, which foil consists of a heat reflecting layer and a protective lay covering that. A feature of it is that on both sides of the heat reflecting aluminium layer formed by vapour deposition or as a foil there are plastic layers positioned as protective layers and with aircushion, plastic heat insulation on the one side of the aluminium layer on the plastic layer.
The invention, furthermore, is a heat reflecting foil with a felt layer, which serves for the reflection of heat radiation and vapour sealing in the heat insulation of buildings, which foil consists of a heat reflecting layer and a protective lay covering that. A feature of it is that on both sides of the heat reflecting aluminium layer formed by vapour deposition or as a foil there are plastic layers positioned as protective layers, furthermore, there is a felt layer on one of the plastic layers, and preferably the aluminium layer and the plastic layers have perforations.
In a functional, constructed form of the foil according to the invention the material of the plastic layers is a plastic that softens with heat, preferably polyester, polyethylene, polyamide, polypropylene, polycarbonate or PVC. The thickness of the aluminium layer is preferably between 0.2 run and 80 μm, the thickness of the plastic layers between 8 μm and 200 μm, the thickness of the aircushion heat insulation layer between 1 mm and 20 mm, the thickness of the felt layer in a given case between 0.2 mm and 50 cm, and the diameter of the perforation openings in a given case between 50 μm and 1.5 mm. The preferred embodiments of the foil according to the invention are illustrated below with the help of the appended figures: Figure 1 shows a section picture of the vapour-tight, heat reflecting backing foil according to the invention. Figure 2 shows the structural form of the aircushion, heat reflecting foil according to the invention.
Figure 3 shows the structural form of the heat reflecting foil according to the invention supplied with felt layer.
Figure 1 shows a section picture of the vapour-tight, heat reflecting backing foil according to the invention. The aluminium layer 2, the middle layer of the vapour-tight backing foil can be seen on the figure, which is covered by plastic layers 1, 3 on both sides. The plastic layers
1, 3 serve as mechanical protection for the aluminium layer 2, but they also have a heat insulation role. On the production of the backing foil according to the invention either ready made aluminium foil is used or the aluminium layer 2 is made with vapour deposition. If aluminium foil is used for the manufacture, then on the production of the backing foil according to the invention plastic layer 1 is applied to the one side and plastic layer 3 is applied to the other using a heat technology procedure. This may take place separately per layer in two stages or at once, in one technological step.
On forming the aluminium layer 2 with metal vapour deposition the aluminium is deposited onto plastic layer 1 with vapour deposition, then using a heat technology procedure plastic layer 3 is applied to this. The material of the plastic layers 1, 3 is preferably polyester, polyethylene, polyamide, polypropylene or polycarbonate.
In the case of a concrete constructed form of the heat reflecting, vapour- tight backing foil according to figure 1, the basis of the backing foil is UN stable polyester or polyamide foil, which forms the plastic layer 1. On this the aluminium layer 2 is formed with metal vapour deposition, or with the positioning of aluminium foil. Plastic layer 3 is placed on the other side of the aluminium foil 2 also in the form of a plastic foil. The plastic foils 1, 3 can be of similar material with symmetrical form, or they may be of different materials. The reflecting aluminium layer 2 created in this way has a long life, its surface is protected from damp and from the oxygen in the air by the plastic layers 1, 3, due to this the aluminium does not oxidise, and does not lose its heat reflecting ability.
The backing foil according to figure 1 is used in the following way in roof insulation. The 100-120 cm wide backing foil strips are fixed to the rafters with spacer strips parallel to the line of the eaves. It is favourable to stick the edges of the individual strips together with adhesive strips for the purpose of uniform vapour-tightness. The vapour-tightness between the external and internal spaces is ensured by plastic layers 1, 3 of the backing foil, and the reflection of heat radiation is ensured by the aluminium layer 2.
Figure 2 shows the structural form of the aircushion, heat reflecting foil according to the invention. On both sides of the heat reflecting aluminium layer 2 there are the plastic layers 1, 3, furthermore, on the one side the aircushion plastic heat insulation 4 is positioned on plastic layer 3. The formation of the aluminium layer 2 is similar to the solution that can be seen in figure 1, it is applied as a foil or formed using metal vapour deposition. The plastic layers 1, 3 are mainly for the purpose of protecting the aluminium layer 2, they do have a heat insulation role, but the heat insulation is carried out by the aircushion plastic heat insulation 4 positioned with a heat process on the plastic layer 3. In a concrete case the material of the plastic layers 1, 3 is preferably polyester, polyethylene, polyamide, polypropylene, polycarbonate or PNC.
The method of preparation, manufacture and connection of the foil base according to figure 2, the plastic layers 1, 3 and the aluminium layer 2 between them is the same as the foil manufacture presented in figure 1, and preferably the foil presented in figure 1 is used as a basic material for the preparation of the heat insulated foil according to figure 2. The aircushion plastic heat insulation 4 is fixed to the plastic insulation layer 3 produced in this way with a further heat technology process e.g. heating or with gluing.
In the case of a possible concrete embodiment of the invention according to figure 2 it can be used as roof foil in normally ventilated roof structures. Its fixing is simple, and can be fitted quickly. The foil is to be fitted to the external plane of the rafters with overlaps. Care is to be taken that the shiny, heat-reflecting surface on the side facing the tiles is uniform and reflecting. Fixing to the rafters can take place using staples, tacks or spacing strips. The ventilation of the space between the foil and the insulation material is realised if the foil only extends up to within 15 cm of the roof ridge.
The foil according to figure 2 is also suitable for placing under floor heating, as in the case of floor heating the heat is not only transmitted towards the living area but also in the opposite direction. The foil according to the invention reduces the warming of the space underneath the heating pipes, and reflects the heat radiation radiating in its direction back to the space to be heated. In the case of floor heating if the foil is built in the amount of heat flowing in the direction of the space to be heated increases by 6%, and the heat loss in the opposite direction is reduced by 19%. The application of the foil also ensures vapour tightness, reduces step noise and ensures heat insulation.
The foil according to figure 2 can be used as a heat mirror behind radiators placed in such a way so that the reflecting side faces the radiator, and so with the reflection of the heat radiation flowing towards the wall an energy saving of 8-15% can be attained.
The foil according to figure 2 is also suitable for the reduction of the warming up of the interiors of vehicles. This time the foil is positioned inside the vehicle behind the windscreen so that the reflecting side faces outwards, in this way 70% of the heat rays do not get into the passenger compartment. So the damaging effect of the strong summer sun radiation can be greatly reduced with the foil according to the invention. The foil according to figure 2 can be favourably used indoors or outdoors in the interest of keeping pool water clean and at a pleasant temperature. The foil reflects the heat radiation emitted from the pool water, it prevents the evaporation of the water, its cooling, and reduces the heat loss of the pool. It prevents the water from becoming contaminated and also prevents the growth of alga. As a result of this it reduces the heating costs, the amount of chemicals used and the time needed to clean the pool. In the case of interior pools it is not necessary to use the vapour extraction equipment for such a period of time.
The foil according to figure 2 used as a pool cover is prepared in a water touching and an above water surface construction. Its form is in accordance with the form of the pool, oval, rectangular, circular, or of an individual form. The surface is natural or blue, the colour of the plastic covered aluminium covering is silver or golden metal. It can be used with the best efficiency, if it is floating on the water to its complete extent. In the case of a stressed water surface pool the foil has stable fixtures that are resistant to the wind. In a given case a rolling up device can be connected to it.
Figure 3 shows the structural form of the heat reflecting foil according to the invention supplied with felt layer 5. Here also on one side of the aluminium foil 2 there is the plastic layer 1 and on the other side plastic layer 3 and on this the felt layer 5 is placed. The aluminium layer is also formed using foil or metal vapour deposition. The plastic layers 1, 3 placed on the two sides serve as protection for the aluminium layer 2, but they also have a heat insulation role. The plastic layers 1, 3 together with the aluminium layer have perforations 6. The material of the plastic layers 1, 3 is preferably polyester, polyethylene, polyamide, polypropylene, polycarbonate or PNC. The task of the felt layer 5 is heat insulation, to reduce the possibility of vapour condensation, and due to its large surface area to accelerate the transmission and evaporation the water vapour.
The method of preparation, manufacture and connection of the foil base according to figure 3, the plastic layers 1, 3 and the aluminium layer 2 between them is the same as the foil manufacture presented in figure 1, and preferably the foil presented in figure 1 is used as a basic material for the preparation of the foil according to figure 3. The felt layer 5 is fixed by a further heat technology process, e.g. heating or gluing to the plastic layer 3 of the foil produced in this way, then after this with the help of a roller with pins fitted according to the size and density of the perforations 6 to be formed, the perforations 6 are formed by punching in a part of the surface of the foil or over all of it.
In the case of a foil according to figure 3 the plastic layers 1, 3 and the alumimum layer 2 are perforated with cone shaped perforations so that the water vapour can escape outwards but not inwards, so the ventilation of the internal space is solved. The formation of the perforations is conical, getting smaller outwards, because the water vapour needs to be let out outwards. Water vapour is less able to pass through the foil in the other direction, and because of possible mechanical pressure it closes up. From this direction the foil is water tight, because the diameter of the perforations on this surface is so small that possibly condensed water droplets cannot go through these holes under normal pressure conditions.
In the case of a concrete construction of the invention that can be seen in figure 3 it can be used as roof foil in roof structures. The foil according to the invention can be preferably applied as roof foil so that it is placed on the outer side of the rafters, then it is not necessary to form an air gap between the foil and the heat insulation. Its fixing is simple, and can be fitted quickly. The foil is to be fitted to the external plane of the rafters with overlaps. Care is to be taken that the shiny, heat reflecting surface on the side facing the tiles is uniform and reflecting, while the felt layer 5 is on the inner, heat insulation side. Fixing to the rafters can take place using staples, tacks or spacing strips. The ventilation of the space between the foil and the insulation material is not separately necessary.
In the case of the application of any of the foil presented in figures 1, 2 and 3 the heat reflecting surface formed by the aluminium layer 2 reflects 92% of the heat radiation, so in summer it protects the roof space from over-heating. According to its operation the heated air in the space between the roof covering material e.g. roof tiles and the foil flows upwards and as a result of the chimney effect the heat escapes through the vents or through the ridge tiles. Beside the heat reflecting and heat insulation features of the foil according to the invention it is water tight and resistant to chemicals, so it has a long life-span. In the case of its use -li¬
the duration of the operation of air-conditioning is reduced or it becomes unnecessary to operate it.
An advantage of the solution according to the invention is that contrary to traditional insulation a significant part of the heat radiation does not escape through the insulation material, so, for example, in the winter season it protects the roof space from cooling, because the heat radiation is reflected back into the heated space. A further advantage is that it protects the heat insulation material from the water vapour forming in the internal space and prevents the uncomfortable, unhealthy fibreglass or mineral wool dust from getting into the living area. The foil according to the invention is heat reflecting, heat insulating, resistant to chemicals and has a long life span. With its use the heating costs of the built in space are reduced by 20%.

Claims

1. Heat reflecting, vapour-tight backing foil, which serves for the reflection of heat radiation and vapour sealing in the heat insulation of buildings, which foil consists of a heat reflecting layer and a protective lay covering that, characterised by that on both sides of the heat reflecting aluminium layer (2) formed by vapour deposition or as a foil there are plastic layers (1, 3) positioned as protective layers.
2. Aircushion, heat reflecting foil, which serves for the reflection of heat radiation and the heat insulation of buildings, which foil consists of a heat reflecting layer and a protective lay covering that, characterised by that on both sides of the heat reflecting aluminium layer (2) formed by vapour deposition or as a foil there are plastic layers (1, 3) positioned as protective layers and with aircushion, plastic heat insulation (4) on the one side of the aluminium layer (2) on the plastic layer.
3. Heat reflecting foil with a felt layer, which serves for the reflection of heat radiation and heat insulation in heat insulation, which foil consists of a heat reflecting layer and a protective lay covering that, characterised by that on both sides of the heat reflecting aluminium layer (2) formed by vapour deposition or as a foil there are plastic layers (1, 3) positioned as protective layers, furthermore, there is a felt layer (5) on one of the plastic layers (3).
4. Foil according to claim 3 characterised by that the aluminium layer (2) and the plastic layers (1, 3) have perforations (6).
5. Foil according to any of claims 1-4, characterised by that the plastic layers (1, 3) are of a plastic that softens with heat, preferably polyester, polyethylene, polyamide, polypropylene, polycarbonate or PNC.
6. Foil according to any of claims 1-5, characterised by that the thickness of the aluminium layer (2) is preferably between 0.2 nm and 80 ╬╝m, the thickness of the plastic layers (1) is between 8 ╬╝m and 200 ╬╝m, the thickness of the aircushion heat insulation layer (4) is between 1 mm and 20 mm, the thickness of the felt layer (5) in a given case is between 0.2 mm and 50 cm, and the diameter of the perforation (6) openings in a given case is between 50 ╬╝m and 1.5 mm.
PCT/HU1999/000040 1998-05-21 1999-05-21 Heat reflecting foil WO1999060222A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU39494/99A AU3949499A (en) 1998-05-21 1999-05-21 Heat reflecting foil

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
HUU9800152 1998-05-21
HUU9800150 1998-05-21
HU9800152U HU1423U (en) 1998-05-21 1998-05-21 Air-reflecting foil with feltlamina
HU9800150U HU1418U (en) 1998-05-21 1998-05-21 Air-reflecting, steam-closing underplate-foil
HU9800151U HU1424U (en) 1998-05-21 1998-05-21 Air-reflecting foil with air-cushion
HUU9800151 1998-05-21

Publications (1)

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WO1999060222A1 true WO1999060222A1 (en) 1999-11-25

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WO2001051724A1 (en) * 2000-01-11 2001-07-19 Paul Bergeron Vapor and radiant barrier
NL1017092C2 (en) * 2001-01-12 2002-07-15 Rockwool Lapinus Bv Nail flange blanket with plastic layer.
FR2822864A1 (en) * 2001-03-29 2002-10-04 Michel Martin Thermo-acoustic insulation complex for building walls comprises reinforced and aluminized film materials, as well as insulating and reflective layers
DE10101966A1 (en) * 2001-01-17 2003-04-03 Ludwig Duerrbeck Compound building material comprises at least one metallized layer, at least one plastic layer and at least one air-cushion layer
GB2382827A (en) * 2002-01-23 2003-06-11 Thermal Economics Ltd Improved thermal insulation
FR2839807A1 (en) * 2002-05-15 2003-11-21 Paul Riedel Thermal insulation and radiation shielding material, e.g. for homes, has polished metal layer with protective and reinforcing film layers
EP1400348A2 (en) 2002-09-21 2004-03-24 Don & Low Limited Improvements in and relating to liquid impermeable and liquid vapour/gas permeable fabrics
WO2004054799A1 (en) * 2002-12-17 2004-07-01 Building Product Design Limited Vapour permeable heat-reflective membranes
WO2006043092A1 (en) 2004-10-22 2006-04-27 Hunt Technology Limited Multi-layer thermal insulation system
WO2006056637A1 (en) * 2004-11-24 2006-06-01 Walki Wisa Oy A method for manufacturing a material web which reflects heat radiation and a material web
NL1029636C2 (en) * 2005-07-27 2007-01-30 Meuwissen Ind B V Insulating foil as well as an architectural construction provided with such insulating foil.
EA010617B1 (en) * 2007-02-12 2008-10-30 Николай Федорович Парков Protection module for process equipment
GB2451183A (en) * 2007-07-17 2009-01-21 Thermal Economics Ltd Improved thermal insulation
US20100209663A1 (en) * 2006-06-08 2010-08-19 Patrick Grall Roofing Underlay Screen
US7935411B2 (en) 2006-04-19 2011-05-03 Furio Orologio Metallized polymeric film reflective insulation material
US7935410B2 (en) 2006-04-19 2011-05-03 Furio Orologio Metallized polymeric film reflective insulation material
JP2019073227A (en) * 2017-10-18 2019-05-16 トヨタ紡織株式会社 Vehicle ceiling material and manufacturing method of the same
WO2023054710A1 (en) * 2021-09-30 2023-04-06 積水化学工業株式会社 Laminated structure

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001051724A1 (en) * 2000-01-11 2001-07-19 Paul Bergeron Vapor and radiant barrier
NL1017092C2 (en) * 2001-01-12 2002-07-15 Rockwool Lapinus Bv Nail flange blanket with plastic layer.
WO2002055801A1 (en) * 2001-01-12 2002-07-18 Rockwool Lapinus B.V. Nailing flange blanket
DE10101966B4 (en) * 2001-01-17 2004-07-08 Göbel, Klaus-Ulrich Thermal insulation and / or soundproofing material
DE10101966A1 (en) * 2001-01-17 2003-04-03 Ludwig Duerrbeck Compound building material comprises at least one metallized layer, at least one plastic layer and at least one air-cushion layer
FR2822864A1 (en) * 2001-03-29 2002-10-04 Michel Martin Thermo-acoustic insulation complex for building walls comprises reinforced and aluminized film materials, as well as insulating and reflective layers
EP1331316A1 (en) 2002-01-23 2003-07-30 Thermal Economics Limited Improved thermal insulation
GB2382827B (en) * 2002-01-23 2003-11-12 Thermal Economics Ltd Improved thermal insulation
GB2382827A (en) * 2002-01-23 2003-06-11 Thermal Economics Ltd Improved thermal insulation
FR2839807A1 (en) * 2002-05-15 2003-11-21 Paul Riedel Thermal insulation and radiation shielding material, e.g. for homes, has polished metal layer with protective and reinforcing film layers
EP1400348A2 (en) 2002-09-21 2004-03-24 Don & Low Limited Improvements in and relating to liquid impermeable and liquid vapour/gas permeable fabrics
EP1400348B2 (en) † 2002-09-21 2011-04-27 Don & Low Limited Improvements in and relating to liquid impermeable and liquid vapour/gas permeable fabrics
WO2004054799A1 (en) * 2002-12-17 2004-07-01 Building Product Design Limited Vapour permeable heat-reflective membranes
WO2006043092A1 (en) 2004-10-22 2006-04-27 Hunt Technology Limited Multi-layer thermal insulation system
WO2006056637A1 (en) * 2004-11-24 2006-06-01 Walki Wisa Oy A method for manufacturing a material web which reflects heat radiation and a material web
NL1029636C2 (en) * 2005-07-27 2007-01-30 Meuwissen Ind B V Insulating foil as well as an architectural construction provided with such insulating foil.
GB2428631A (en) * 2005-07-27 2007-02-07 Meuwissen Ind B V Insulating foil
US8327601B2 (en) 2006-04-19 2012-12-11 Furio Orologio Metallized polymeric film reflective insulation material
US8936847B2 (en) 2006-04-19 2015-01-20 Promethean Insulation Technology Llc Metallized polymeric film reflective insulation material
US8343614B2 (en) 2006-04-19 2013-01-01 Furio Orologio Metallized polymeric film reflective insulation material
US8221871B2 (en) 2006-04-19 2012-07-17 Furio Orologio Metallized polymeric film reflective insulation material
US7935411B2 (en) 2006-04-19 2011-05-03 Furio Orologio Metallized polymeric film reflective insulation material
US7935410B2 (en) 2006-04-19 2011-05-03 Furio Orologio Metallized polymeric film reflective insulation material
US8287984B2 (en) * 2006-06-08 2012-10-16 Loda S.A.R.L. Roofing underlay screen
US20100209663A1 (en) * 2006-06-08 2010-08-19 Patrick Grall Roofing Underlay Screen
EA010617B1 (en) * 2007-02-12 2008-10-30 Николай Федорович Парков Protection module for process equipment
GB2451183A (en) * 2007-07-17 2009-01-21 Thermal Economics Ltd Improved thermal insulation
GB2451183B (en) * 2007-07-17 2010-07-07 Thermal Economics Ltd Improved thermal Insulation
JP2019073227A (en) * 2017-10-18 2019-05-16 トヨタ紡織株式会社 Vehicle ceiling material and manufacturing method of the same
US11511683B2 (en) * 2017-10-18 2022-11-29 Toyota Boshoku Kabushiki Kaisha Vehicle headliner and production method thereof
WO2023054710A1 (en) * 2021-09-30 2023-04-06 積水化学工業株式会社 Laminated structure

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