NL2014088B1 - Insulating device for holding loosely deposited insulating material together and method for mutually insulating two spaces with such an insulating device. - Google Patents

Abstract

The present invention relates to an insulating device adapted to hold loosely cast or at least poured insulating material, comprising an elongated flexible carrier serving as a supporting structure in the form of a multi-layer laminated film, comprising an LDPE film which is reinforced by a net of polypropylene and is covered with aluminum foil, provided with an elongated sleeve, the elongated sleeve comprising an uninterrupted sleeve wall viewed in cross-section and being made of a flexible material. The invention further relates to a method for applying such an insulation device.

Description

Brief description: Insulation device for holding loosely deposited insulation material and method for mutually insulating two spaces with such an insulation device

Description

According to a first aspect, the present invention relates to an insulating device comprising an elongated sleeve, and adapted to hold together in the elongated sleeve of the insulating device loosely deposited or at least poured insulating material. Known are bags or elongated tubes that are used to deposit and package loose beads of insulating material. In the bags, for example, beads of insulating material, for example, beads of expanded polystyrene (EPS) are packaged. The bags are placed on a bottom of a space, such as a crawl space or basement, to prevent cold and moisture from rising up into the crawl space or basement and then into a space above it. A drawback of the known insulation device is that it has only a limited application for spaces where it is not necessary, or rarely, to walk in and there are many heat losses via the foundation beams and due to the degree of ventilation above the insulation.

The present invention has for its object to provide a more widely usable insulating device of the type described in the introduction, which is particularly suitable for use in spaces that can be accessed regularly. This object is achieved by the present invention by an insulating device which is adapted to hold loosely deposited or at least dumped insulating material, comprising an elongated flexible carrier serving as a supporting structure in the form of a multi-layer laminated film comprising an LDPE film which is reinforced by a net of polypropylene and is covered with aluminum foil, provided with an elongated flexible sleeve, the longitudinal directions of the carrier and the sleeve corresponding, and wherein the elongated sleeve comprises a continuous sleeve wall viewed in cross-section and is made of a flexible material In such an insulating device with loosely deposited insulating material, the insulating material forms part of the insulating device and the insulating material is held together by the elongated sleeve. By means of a device according to the present invention it is possible to arrange the supporting structure of the insulating device in such a way that the insulating device can be fixed to a wall by means of the supporting structure, for example to be suspended on the underside of a floor to be insulated , without damaging the elongated sleeve. After all, a damaged sleeve has the risk that loosely deposited insulating material that is held together by the elongated sleeve can easily flow out of the elongated sleeve. The floor of a lower of the two spaces can thus be kept free of insulation material and the space concerned can be entered without damaging the insulation device. In addition, the heat losses through the foundation beams and the degree of ventilation of the crawl space no longer have an effect on the heat resistance achieved on the ground floor. The aim of the invention is thus achieved with such an insulating device. The term flexible in combination with the carrier means that it can be rolled up and / or foldable and with respect to the sleeve that it can be rolled up and / or foldable and, when filled with loosely deposited insulating material, changes from a flat folded state to a tubular shape status. Of course, the transition from a flat-folded state to a tubular state can also be realized prior to filling, for example by blowing in and / or catching air. The flexibility of the combination of elongated carrier and elongated sleeve provides a storage device of the insulation device which is compact before use, while during use, filled with insulation material, it can assume a sufficient thickness to provide a desired insulation effect. It is preferred that the elongated sleeve extends entirely on one side of the elongated carrier. A feature has been added in each of different layers in the laminate of the support. The aluminum layer or foil can be provided with a protective coating to protect against alkaline influence. The aluminum provides reflection of heat radiation. Said materials are easily available in combinations of properties of a sufficiently strong and thin material. This makes them suitable for carriers with a relatively small volume in a flat-folded state of the insulation device. Aluminum foil is known as a highly suitable material for the outside of an insulation device because of its reflective capacity. Fiber reinforcement through a polypropylene net protects the laminate against cracks. If the insulation device according to the present invention is to be taken along in a room of a building that is difficult to access, such as, for example, a basement or crawl space, then minimizing the required volume is desirable, or at least advantageously.

It is also known to attach plate material to the beams on the underside of a wooden floor. However, wooden beams in a structure are rarely completely parallel to each other (beams can be a little crooked, etc ..). This is therefore difficult to seal with sheet material and it takes a lot of time to make this pass. Often gaps remain. With the isolation device following the present invention, a one-size-fits-all idea is, as it were, created with respect to the known isolation. The elongated support can be flexibly adapted to incomplete parallel beams and the elongated sleeve expands during filling and molds itself to the shape of the beams and thus seals perfectly.

In a preferred embodiment of the present invention, the support structure forms part of or the support structure is connected to the elongated sleeve. When the support structure is integrally connected to the elongated sleeve, the construction can be easily handled and the risk of the elongated sleeve being released by the wearer during manipulation, such as when mounting the insulation device to a wall, is minimal.

It is preferred that the elongated sleeve has a sleeve width Bh and the elongated flexible carrier has a carrier width Bd, where Bh <Bd. The elongated carrier can thus be provided on the elongated sleeve in such a way that the carrier partially comprises strips which are kept free of the elongated sleeve, and with which the carrier can for instance be attached to a wall of a building. The sleeve width Bd is preferably measured in a state in which it is applied to the carrier for filling, wherein the sleeve may be partially folded double to keep a strip free of the carrier. The sleeve width Bd can be additionally or alternatively determined in the tubular state, in which the sleeve is filled with insulating material.

It is thereby preferred that the elongated flexible carrier extends on at least one long side and further preferably on both long sides beyond the sleeve. Thus, a part of the elongated carrier extending beyond the elongated sleeve can be used as a mounting strip for mounting the insulating device to, for example, a wall of a building. The carrier can thus be simply attached to a wall with a free strip thus provided, so that the risk of damage to the sleeve is minimal.

It is further preferred that the elongated sleeve is designed as a tubular foil. Tubular film, in particular when the tubular film is made from low density polyethylene (LDPE), can be provided with a suitable strength and thickness for holding loosely deposited insulating material together. The tubular film, preferably provided with a fold-in, can be arranged on the carrier, partly with side edges folded inwards, with a view to keeping the insulation device flat when folded from strips of a carrier. Thus, a tubular foil with a relatively large content, viewed in cross-section, can be used to form a relatively thick insulating layer in tubular condition. The tubular foil can be made in one step by means of extrusion. Alternatively, a tubular foil can be made from a web that is double-beat and the side edges of which are welded together.

In a preferred embodiment according to the present invention, the film or foil from which the sleeve is made is provided with perforations. The perforations make it possible to blow loose insulating material into the elongated sleeve, whereby air that is fed into the sleeve during blowing in can easily and quickly escape through the perforations from the sleeve, so that the insulating material can be quickly and compactly fed into the sleeve lined. The elongated sleeve can thus be quickly filled with insulating material after application.

For a good ventilation during the filling of the sleeve, the perforations have a diameter of 0.5 - 3.0 mm and at least three perforations are provided per square centimeter. It will be clear that a good trade-off between venting capacity and the risk of damage to the elongated sleeve with perforations must be made.

In an alternative preferred embodiment according to the present invention, the elongated sleeve is made of air-permeable material. As a result, the provision of perforations in the material of the elongated sleeve is more or less superfluous in order to obtain sufficient aeration.

It is further preferred that the elongated sleeve is made of a weldable material. By this is meant that the elongated sleeve, for example by supplying heat, can easily be welded to itself (molten) in order to seal the elongated sleeve at a head end. This sealing can be done both before filling and after filling. Preferably, a head end of a sleeve is welded shut when, for example, it is shortened by the application of heat or after a desired length of insulation device has been cut off from a supply.

It is preferred that restriction means are provided which limit the expansion of the elongated sleeve in a direction perpendicular to the elongated carrier. A tubular foil as an elongated sleeve will tend to expand on all sides relative to the longitudinal axis during filling in order to form a round tube. If the expansion options are limited by the restriction means in the direction perpendicular to the elongated carrier, a more flat cushion-shaped filled tubular foil can be realized. Nylon Textile pins or Tag pins are used in the textile industry and are used to attach labels to clothing.

For easy filling of the elongated sleeve, it is preferred that the elongated sleeve is provided with sealed filling openings. By this is meant openings which are closed in the unloaded state, so that no insulating material can escape, but which can simply be pressed open by, for example, a filling gun to fill the elongated sleeve with insulating material to be poured loose. If the filling openings are provided at mutual distances in the range of 0.5-5 m, preferably in the range of 1-3 mm, after mounting the insulation device on a wall there is under (virtually) all conditions a filling opening at a location suitable for filling the elongated sleeve.

It is preferred that the insulating material to be peeled off of an insulating device filled with granular material is granular, and preferably comprises foamed plastic, preferably foamed polystyrene (EPS). Granular insulation material can be easily processed and can be compacted with a high density to obtain a desired insulation value. In addition to a good insulation value, foamed plastic, in particular polystyrene, also has the advantage of a low specific gravity, as a result of which the bearing construction can be of relatively light construction. After all, the weight of the insulation material to be carried is relatively low.

It is preferred here that the granular material comprises granules, wherein preferably> 90%, further preferably> 95% of the granules has a cross-section that is in the range of 0.5 - 30 mm. Granules can easily be packaged relatively compactly.

When the insulation device has a length of> 10 m, preferably> 20 m and furthermore preferably> 40 m, a highly effective insulation device is provided. The longer the insulation device, the less waste is created as a result of the fact that a last part of the insulation device cannot cover a full wall length, or the less often the risk that two insulation devices must be applied over a length for covering the entire length of the room.

It is also preferred that the elongated carrier has a width of> 28 cm, preferably of> 38 cm and further preferably of> 56 cm. It is advantageous if the width of a support can span the space between two floor or roof beams, between which an insulation device must be provided,. The center-to-center distance of two floor or roof beams can be, for example, 30 cm, 40 cm or 60 cm. The said widths of the elongated carrier correspond to a clear distance between two adjacent beams.

According to a second aspect, the present invention relates to a method for applying insulation between two adjacent spaces, at least one of which is indoor, the method comprising the steps of: a) providing in at least one of the two adjacent spaces a support structure; b) arranging at least one elongated sleeve over a length of one of the spaces with an uninterrupted cross-section seen in cross-section and made of flexible material; c) filling the elongated sleeve arranged in step b) with loose insulating material by feeding the material to be loosened into the sleeve via a line; and d) sealing the sleeve on the front side, steps a) and b) being carried out simultaneously by providing an insulation device as the insulation. In order to prevent the elongate carrier and the elongated sleeve from having to be arranged separately, the present invention provides in the second aspect that steps a) and b) are carried out simultaneously by providing an insulation device according to the first aspect of the present invention. The insulating device is preferably provided as a roll, whereby the elongate carrier and the elongated sleeve can thus be unrolled simultaneously and, for example, be arranged on a partition wall of a space to be insulated. After its application, the insulating material can then be fed into the elongated sleeve. The steps do not have to be carried out in the presented order a) to d). It is thus possible, and often advantageous, to perform step d) prior to steps a) and b). Thus, an elongated sleeve closed at the ends is provided before the insulation device is provided in the space.

It is preferred here that the insulation device in steps a) and b) be arranged against a partition wall separating the two adjacent spaces. The relevant wall can thus be simply insulated.

It is furthermore preferred here that the insulation device is arranged in steps a) and b) in a lower one of the two adjacent spaces.

It is furthermore preferred here that in steps a) and b) the insulating device is arranged under a partition wall separating the two adjacent spaces. The insulating device can be attached to the relevant partition wall. In this way an insulation is created which generally causes little inconvenience to users of a building in which the insulation device is arranged.

When the partition wall is provided with at least substantially parallel to each other and beam-shaped wall carriers which at least substantially co-carry the partition wall, wherein the support structure is attached to two wall carriers, the space between the support structure can beam-shaped wall carriers and the partition wall are utilized for filling by the sleeve with loosely cast, or at least loosely laid, insulating material.

It is preferred that the elongated sleeve is made of a weldable material, wherein in step d) a front side of the elongated sleeve is welded shut. It is alternatively possible to tie the elongated sleeve shut, to stick it shut or to sew it shut or to staple it, in particular when the material of the sleeve and possibly also of the supporting structure lends itself to this.

In a preferred embodiment according to the present invention, the partition wall is a floor in a building.

In an alternative method according to the present invention, the partition wall is a roof of a building. The partition wall here separates an indoor space under the roof from the outside environment as a second space.

The present invention will be explained below with reference to preferred embodiments thereof and with reference to the accompanying drawings. Show here:

Figure 1 is an exploded view of a preferred embodiment of an insulation device according to the present invention;

Figure 2 is a perspective view of the isolation device of Figure 1;

Figures 3a-3c show schematic vertical sectional views of the isolation device of figures 1 and 2 during the filling thereof;

Figures 4a-4d schematic representations of a preferred method for applying insulation according to the present invention;

Figure 5 is a schematic representation of a method for insulating a floor according to the present invention;

Figure 6 is a schematic representation of a method for insulating a roof according to the present invention.

Looking at figures 1 and 2, an exploded view and a composite view, respectively, of a part I 'of a length insulating device 1 according to the present invention are schematically shown. Insulation device 1 is an elongated composite web with the main components being an elongated support 2 as a supporting structure and an elongated sleeve 3. The elongated support 2 is made of a multilayer dampproof film reinforced with coated aluminum, in this example Miofol® 170 AG from Meuwissen. This is a laminate of LDPE film that is reinforced with a polypropylene net and is covered with aluminum foil (see product sheet of December 2014). The elongated sleeve 3 is made of perforated tubular film of low density polyethylene (LDPE). In this exemplary embodiment, elongate carrier 2 has a width of 75 cm. The elongated sleeve 3 has a width of 54 centimeters in the folded state. The elongated sleeve 3 is attached to the elongated carrier 2 by means of filling valves 4a, 4b arranged at regular mutual distances from each other between the carrier 2 and the sleeve 3. The filling valves are made of shortened pieces of rubber that are provided with double-sided adhesive tape on both sides. The elongated carrier 2 and the elongated sleeve 3 are both unrolled from a roll. At preferably regular intervals of, in this exemplary embodiment, 2 meter, a rubber sheet, which is provided on both sides with double-sided adhesive tape, is glued to the elongated support and the elongated sleeve is glued to the rubber sheet on the other side. Subsequently, the thus assembled carrier 2 with sleeve 3 passes through a punching station, where a cross-shaped incision is made by the carrier 2, the rubber and the sleeve 3 at the location of the mutually spaced interconnections. The incision is then sealed on the side of the sleeve 3 remote from the carrier 2 with tape 9a, 9b. A filling valve 4 is thus provided at the area of the rubber sheet and the wall of the elongated sleeve 3, with the exception of the filling valves, is securely sealed against leaks of insulation material to be poured loosely into the elongated sleeve 3.

The orientation of the elongated sleeve 3 relative to the elongated carrier 2 is asymmetrical in this exemplary embodiment such that on one side of the elongated carrier 2 a mounting strip 5a of self-adhesive material and with a width of 5 centimeters is arranged, flanked by the elongated sleeve 3, which in turn is flanked by a second fastening strip 5b of self-adhesive material 5b with a width of 5 centimeters, wherein the elongated carrier 2 on the side of the fastening sleeve 5b remote from the elongated sleeve 3 is over a width of 5 centimeters kept free. The insulation device 1 is shown in figures 1 and 2 with a sleeve 3 in the inflated (filled with insulation material) state and with a limited length I. The elongated sleeve 3 is welded shut at one end 6. At another end (not shown in figures 1 and 2) the sleeve 3 is also welded shut. In this (not shown) state, the length of the insulation device 1 corresponds to the length of a space that is / is isolated with the aid of the insulation device 1. The insulation device 1 is provided for this purpose in the unfilled state in a long length, for example longer than 50 or longer than 100 meters and shortened to the desired length for application. Plastic profiles 7 are provided as restriction elements in the direction perpendicular to the plane of the insulating device.

Plastic profiles 7 have an elongated wire 7a which extends on both sides beyond the wall of the flexible elongated sleeve 3 and which is provided on both ends with a transverse piece 7b extending perpendicularly thereto. The transverse pieces 7b limit the extent of expansion of the elongated sleeve 3 in the direction away from the elongated carrier 2.

Now looking at Figures 3a-3c, a schematic vertical cross-sectional view is shown of the isolation device 1 of Figures 1 and 2 during the filling of the elongated sleeve 3. Figure 3a shows a state in which the elongated sleeve 3 in unfilled state using from filling valve 4 to the elongate carrier 2. On either side of the elongated sleeve 3, which is folded inwards on the sides 3a, 3b, there is a fastening strip 5a, 5b on the elongated carrier 2. In addition to the fastening strip 5b, a web 2a is kept clear of the elongated carrier 2. Plastic profiles 7 have been shot through the elongated sleeve 3, which when filling the elongated sleeve 3 with insulating material serve as limiting means. Figure 3b shows that the insulation device 1 is slightly filled with insulation material from the situation in Figure 3a. In Figure 3c the elongated sleeve 3 is completely filled with insulating material and the sleeve 3 is limited in its height direction, i.e. in the direction perpendicular to the plane of the insulating device 1, so that a relatively flat filled elongated sleeve 3 results. .

Figures 4a-4d schematically show a method for applying insulation under a wall 12. In figures 4a-4d the wall 12 is shown by way of example in the form of a floor 12 supported by beams 11. Figure 4a shows the wall 12 prior to applying insulation. Figure 4b shows diagrammatically the method of applying insulating devices 1a, 1b, 1c, 1d to beams 11. An insulating device 1 has already been provided on the left-hand side of the drawing, with the fixing strip 5ab adhering to the underside of a beam 11 is arranged. A free strip 2aa of the support 2a of insulating device 1a is kept free. A second insulating device 1b is then fitted between two beams 11 by sticking fastening strip 5ba against fastening strip 5ab and pasting fastening strip 5bb against an adjacent beam 11. Subsequently, staples 13 are shot through fixing strips 5ba and 5ab into beam 11, so that the fixing of the insulating devices does not have to rely on a long-term adhesive power of the fixing strips 5ba, 5ab. After the isolation device 1b has been attached, isolation device 1c and subsequently isolation device 1d are attached to beams 11 in the same way. Thus, chambers are always defined by a part of the floor 12, two adjacent beams 11 and a carrier 2, in which an elongated sleeve 3 is located. This situation is shown in Figure 4c. Incidentally, the fixing strips 5 are not attached to the beams all the way to the end. The elongated carriers 2 may not be sufficiently permeable to air to allow air escaping from the elongated sleeve 3 during the filling of the elongated sleeve 3 (for a description later in this document). The openings at the ends of the elongated carrier 3 provide such an air outlet.

From the situation shown in Figure 4c, an operator inserts a filling gun (not shown) through the cross opening (see Figures 1 and 2) of a filling valve 4, after which air can be introduced into the elongated sleeve 3 with loosely deposited insulating material. During insertion of the filling gun into the filling valve 4, the filling gun pierces the material of the elongated sleeve 3 at the location of the filling valve 4. After filling, the operator withdraws the filling gun from filling valve 4, whereafter the cross-over opening closes resiliently again, at least such that no insulating material can flow out of the elongated sleeve 3 via the filling valve 4. Figure 4d schematically shows the situation after filling elongated sleeve 3 with insulating material 8.

Now looking at Figure 5, it is schematically shown how a floor 12 separating a crawl space 21 from a ground floor 22 of a building 23 is insulated according to a method of the present invention. Insulating devices 1 according to the present invention are arranged between two adjacent beams 11 of a floor 12. In the three leftmost insulation devices 1, the elongated sleeve 3 is filled with insulation material 8, in a manner as described above. Viewed from the left, the fourth insulation device 1 is filled from a bulk truck 25 via a filling valve connected to a hose 24 with loose insulation material. To the right of this is an insulation device 1 that is already attached to beams 11 but that has not yet been filled.

Figure 6 shows schematically a building 33 with a sloping roof 32 and an attic space 31. A difference with Figure 5 is that here the partition wall in the form of sloping roof 32 is sloping. Furthermore, figure 6 shows a longitudinal section through which the insulation device 1, in length shortened for use, is visible in longitudinal section. A non-vapor-permeable variant of Miofol is used to insulate a roof. The operating principle in figure 6 is further comparable with that in figure 5.

The fitting of an insulation device 1 according to the present invention can, also according to the present invention, be carried out in different sequences of steps. In a preferred embodiment which is in accordance with the figures shown, an insulation device according to the present invention is provided on a roll of, for example, 100 meters at the location of a building to be insulated. An operator measures the length over which two adjacent beams 11 extend in a space to be insulated. Subsequently, at a suitable location, inside or outside the space to be insulated, the operator cuts off a sub-insulation device 1 to a corresponding length. Thereafter, the operator seals the two ends of the elongated sleeve 3 of the shortened piece of insulation device in a manner known per se by heating and thus fusing together opposite wall parts of the elongated sleeve 3. Thus, a substantially closed bag for holding together insulating material to be poured loose with a length corresponding to the space to be insulated. The operator takes one or more shortened and welded webs of insulating material to the space to be insulated and applies the shortened pieces of insulating device to adjacent beams in the manner described above. Thereby the operator leaves the ends of the tracks free from the beams. When abbreviated pieces of insulation device are attached to the beams, it unrolls a hose from a bulk truck that is filled with gray EPS beads containing graphite. Such granules are available, for example, under the name NEOPIXELS®. Incidentally, it is also possible to provide white EPS pearls, or a combination of whites and gray EPS pearls or EPS pearls that contain soot or carbon black, or loose-cast insulation in a different form or from a different material, for example loose-worked glass or wood - or rock wool. For the principle of the invention, the choice of a particular type of insulating material to be peeled off is of less importance. The hose is connected at one end to the supply of insulation material. The other end of the hose is equipped with a filling gun that is also connected to a supply of high-pressure air. During filling, the operator energizes the filling gun, after which air flows under pressure from a line of the filling gun. The air pressure line is surrounded by a second line that is connected to the hose that is communicatively connected to a supply of insulation material. As a result of a Venturi effect thus generated, insulating material is drawn from the supply to and through the filling gun when the filling gun with a filling opening has been inserted through a valve of an isolation device, and the relevant elongated sleeve gradually fills itself with insulating material and air. Because the elongated sleeve has an air-permeable wall, the elongated sleeve flows full of insulating material, with excess air flowing out of the elongated sleeve through its wall. If the elongated carrier is not or insufficiently permeable to air, air can flow away at both ends of the shortened piece of insulation device, where the elongated carrier is free from the beams. The elongated sleeve is filled over time. The operator switches the filling gun “off” and then pulls the filling gun out of the valve. The filling valve assumes its original shape and thus closes sufficiently to prevent leakage of loosely deposited insulation material through the valve. The operator then fills a next abbreviated piece of insulation device in a similar manner. Finally, the operator can attach the free ends of the elongated carrier to the relevant beams.

The present invention is only shown and described in the figures and the above description with reference to an embodiment. The scope of the present invention is therefore not limited. Many variants, whether obvious or not to those skilled in the art, are conceivable within the scope of the present invention which is defined or the claims that follow. The elongated sleeve can thus be connected to the elongated carrier in a different way. The free strip on the side of the carrier can optionally be omitted. Although a very specific choice of materials is given in the description, it is very conceivable to use other materials. Instead of Miofol®, another carrier can be used, which is suitable for long-term and reliable attachment of the insulation device. The fixing strips of self-adhesive material facilitate the mounting of the carrier on the beams, but are not required. The perforated tubular film of LDPE can be replaced by a sleeve of other material suitable for holding the insulation material together. The perforations help air flow out of the sleeve, but another form of air permeability is also possible. A different material could be used as insulation material instead of EPS beads. Consider, for example, glass, rock or wood wool, which can be supplied in bales or bundles and in which the fibers are or are worked loose in order to be able to bring them through the filling valve into the sleeve. In the description, the elongated carrier and the elongated sleeve are connected to each other only at the location of the filling valves. The interconnection can be established in a different way, ranging from locally, as in the description, to the entire surface, the carrier and the sleeve possibly having an integrated wall.

The insulation device according to the present invention is only described and shown in this document for use in spaces that are regularly accessed. However, it is also possible to arrange the insulation device in a space that is rarely or never entered, such as a crawl space. Although the support is adapted to fix the insulation device to a wall, it is not excluded that an insulation device according to the present invention can be arranged on a floor or bottom of a space that is rarely or never accessed. Furthermore, a vapor-permeable Miofol® is described in the specification as a carrier. It is known to a person skilled in the art of insulation that when applying insulation to the hot side of a wall to be insulated, it is highly preferred to provide a vapor-tight insulation. Furthermore, it is possible to provide an insulating device according to the present invention on floors other than floors and walls supported by beams, for example floors that are flat on the underside or on side walls of a space, for example a crawl space. If the inside of a roof has already been finished with plasterboard, then the insulation device according to the invention, with a vapor-proof support, can also be lowered into the cavity (between beams, roof boarding and drywall) up to the bottom. The sleeve can then be filled with insulating material via a valve. The overlap of the carrier then fits well against the sides of the beams and thereby ensures a good vapor-tight seal, despite the absence of attachment of the carrier to the beams. The description describes how an elongated sleeve can be filled with the aid of a Venturi effect filling gun. Other, whether or not known, methods of filling a space with insulating material can also be used.

Claims (25)

An insulating device adapted to hold loosely deposited or at least dumped insulating material, comprising an elongated flexible carrier serving as a supporting structure in the form of a multi-layer laminated film, comprising an LDPE film which is reinforced by a net of polypropylene and is coated with aluminum foil, provided with an elongated flexible sleeve, the longitudinal directions of the carrier and the sleeve corresponding, and wherein the elongated sleeve comprises a continuous sleeve wall viewed in cross-section and is made of a flexible material. Insulation device according to claim 1, characterized in that the support structure forms part of or is connected to the elongated sleeve. Insulation device according to claim 1 or 2, characterized in that the elongated sleeve has a sleeve width Bh and the elongated flexible carrier has a carrier width Bd, where Bh <Bd. Insulation device according to one or more of the preceding claims, characterized in that the elongated flexible support extends on at least one long side beyond the elongated sleeve. Insulation device according to claim 4, characterized in that the elongated flexible support extends on both long sides beyond the elongated sleeve. Insulation device according to one or more of the preceding claims, characterized in that the aluminum foil of the carrier is covered with a protective coating that protects against alkaline influence. Insulation device according to one or more of the preceding claims, characterized in that the elongated sleeve is designed as a tubular foil. Insulation device according to claim 7, characterized in that the film or foil, at least insofar as it is made from an at least insufficient air-permeable material, is provided with perforations. Insulation device according to claim 8, characterized in that the perforations have a diameter of 0.5 - 3.0 mm and that at least 3 perforations are provided per cm 2. Insulation device according to one or more of the preceding claims, characterized in that the elongated sleeve is made of air-permeable material. Insulation device according to one or more of the preceding claims, characterized in that the elongated sleeve is made of a weldable material. Insulation device according to one or more of the preceding claims, characterized in that restriction means are provided which limit the expansion of the elongated sleeve in a direction perpendicular to the elongated support. Insulation device according to one or more of the preceding claims, characterized in that the elongated sleeve is provided with sealed filling openings. Insulating device according to one or more of the preceding claims, characterized in that the loosely cast or at least poured insulating material is granular, and preferably comprises foamed plastic, preferably foamed polystyrene (EPS). Insulation device according to one or more of the preceding claims, characterized in that the granular material comprises granules, wherein preferably> 90%, further preferably> 95% of the granules has a cross-section that is in the range from 0.5 to 30 mm. Insulation device according to one or more of the preceding claims, characterized in that the insulation device has a length of> 10 m, preferably of> 20 m and further preferably of> 40 m. Insulation device according to one or more of the preceding claims, characterized in that the elongated support has a width of> 28 cm, preferably of> 38 cm and further preferably of> 56 cm. A method of applying insulation between two adjacent spaces, at least one of which is indoor, the method comprising the steps of: a) providing a support structure in the form of a multi-layer laminate in at least one of the two adjacent spaces foil comprising an LDPE foil which is reinforced by a net of polypropylene and is covered with aluminum foil; b) arranging at least one elongated sleeve over a length of one of the spaces with an uninterrupted cross-section seen in cross-section and made of flexible material; c) filling the elongated sleeve arranged in step b) with loose insulating material by feeding the material to be loosened into the sleeve via a line; and d) sealing the sleeve on the front side, steps a) and b) being carried out simultaneously by providing an insulation device according to one or more of the preceding claims as the insulation. A method according to claim 18, characterized in that the insulation device in steps a) and b) is arranged against a partition wall separating the two adjacent spaces. Method according to one or more of claims 18 and 19, characterized in that the insulation device is arranged in steps a) and b) in a lower one of the two adjacent spaces. A method according to claim 20, characterized in that the insulation device in steps a) and b) is arranged under a partition wall separating the two adjacent spaces. Method according to one or more of claims 18 to 21, characterized in that the partition wall is provided with at least substantially parallel to each other and beam-shaped, which are located against the partition wall, the partition wall at least at least partly load-bearing wall carriers, wherein the supporting structure is attached to two wall carriers. Method according to one or more of claims 18 to 22, characterized in that the elongated sleeve is made of a weldable material and that in step d) an end face of the elongated sleeve is sealed. Method according to one or more of claims 18 to 23, characterized in that the partition wall is a floor in a building. Method according to one or more of claims 18 to 23, characterized in that the partition wall is a roof of a building.