Classifications

• • 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
  • E04B1/7604—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 fillings for cavity walls
• • 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
  • E04B2001/742—Use of special materials; Materials having special structures or shape
  • E04B2001/743—Animal products, e.g. wool, feathers
• • 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
  • E04B2001/742—Use of special materials; Materials having special structures or shape
  • E04B2001/745—Vegetal products, e.g. plant stems, barks
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
  • Y02A30/00—Adapting or protecting infrastructure or their operation
  • Y02A30/24—Structural elements or technologies for improving thermal insulation
  • Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires

Definitions

• the present invention relates to a heat insulating element comprising a heat insulating material as well as a method for heat insulation by filling a delimited space of a fixed volume with heat insulating material, said heat insulating material being loose and blowable.
• Heat insulating elements for all possible imaginable appli ⁇ cations are included here, such as application in spaces in floor constructions, wall constructions and so on.
• Heat insulating elements hitherto known for such purposes are constituted by pre-manufactured sheets or sheetings of heat insulating material, which is held together by a suitable binder. These heat insulating elements have a predetermined volume and are comparatively difficult to handle, since they in some applications have to have considerable dimensions. This may be avoided by cutting them into smaller pieces, but the risk of occurrence of thermal bridges in the junctions between different elements will then increase. Such heat insulating elements do not manage to completely fill said spaces either, and they may not adapt themselves to possibly irregularities of these spaces.
• blowable material such as for example loose mineral wool, glass wool and fibrous cellulose material, the latters comprising all types of cellulose masses or pulps, such as chemical pulp, ground pulp and other mechani ⁇ cal pulp, thermal mechanical pulp etc and are preferred, since they do not detrimentally influence the health of human beings in the exposed state and they also efficiently avoid occurrence of mould problems. It is then preferred that the pulp is fluffy, i.e. the fibres of the pulp are more or less free.
• the object of the present invention is to find a remedy to the disadvantages mentioned above of the previous heat insulating elements and obtain a new heat insulating element having all the advantages of heat insulation by means of insulating material in loose state while maintaining the preferences that a heat insulating element in the form of sheets or sheetings has with respect to volume stability and resistance to sinking together.
• the invention also aims at the provision of a method for heat insulation by filling the space with loose and blow ⁇ able heat insulating material, without having a bad volume stability and the tendency to sink together resulted in the prior art methods of this kind.
• the first object is in accordance with the invention obtained by the provision of a heat insulating element with loose and blowable heat insulating material, that this element is pro ⁇ vided with a bag-like envelope of formable or shapable material arranged to receive and be filled with the heat insulating material, and that the periphery of the envelope is provided with openings.
• the heat insulating element according to the invention may thanks to the formable envelope and filling of loose and blowable heat insulating material thereof be inserted into spaces of the kind mentioned above, such as in wall construc ⁇ tions, and be brought to completely fill out these spaces, since a suitable number of heat insulating elements may be inserted into these spaces, so that they fill out the spaces just as efficiently as insulating material being thrown or blown absolutely loose into the space.
• the loose and blowable material located in the envelope of a heat insulating element may also form mechanical connections with the material of a heat insulating element bearing against this heat insulating element, and such mechanical connections will prevent sinking of the material located in each heat insulating element downwardly in the respective envelope and mutual displacement of the heat insulating elements from occurring.
• Such mechanical connections will also be created by the heat insulating elements bearing against the delimitation of the space, such as wall boards and the like, also with these delimitation members, so that a displacement with respect thereto will be counteracted.
• the second object declared above is according to the invention obtained in a method of the kind mentioned in the introduction by filling bag-like envelopes of a formable material and having openings along their periphery with the heat insulating mate ⁇ rial, and that these envelopes are placed in said space so that they tightly bear against each other.
• Fig 1 is a side-elevation of a heat insulating element accor ⁇ ding to the invention, which is just being filled with heat insulating material , some parts being broken away for the sake of clearness.
• Fig 2 is a view corresponding to Fig 1 of a heat insulating element slightly modified with respect to the heat insulating element in Fig 1,
• Fig 3 is a simplified perspective view of a section broken away of a wall construction, which illustrates a preferred embodi ⁇ ment of the heat insulation method according to the invention.
• Fig 4 is a schematic view from above of a section of a wall construction filled with the heat insulating element according to the invention.
• the heat insulating element 1 has a bag-like envelope 2 of a net material, so that the envelope is provided with openings 3 all around.
• the envelope 2 is here of an elastic material and has in the unfilled condition preferably a sausage-like shape with a substantially constant cross section.
• a shaping funnel 8 is preferably arranged exter ⁇ nally to the envelope 2 before said blowing so as to determine the approximate cross section of the heat insulating element as finished.
• the heat insulating mate ⁇ rial is thrown or blown into the envelope 2 on expansion thereof to the shape shown in Fig 1, so that the heat insula ⁇ ting material will completely fill out the envelope 2.
• the envelope end 4 is then drawn over the annular rib 6 and removed from the hose 5, whereupon this envelope end is closed in a suitable manner.
• the heat insulating element is now ready to be inserted into any space for insulation purposes.
• the blowable heat insulating material 7 is preferably fibrous and wool-like, and fibre parts or portions will project some ⁇ what out through the openings 3 of the envelope or at least participate in the formation of the outer surface of the heat insulating element at the level thereof.
• the heat insulating material may be any blowable and/or throwable material, such as for example loose mineral wool, glass wool, fibrous cellulose material, i.e. different types of cellulose pulps, such as chemical pulp, ground pulp or other mechanical pulp, thermal mechanical pulp etc, small loose foam-rubber pieces or balls and so on.
• the important thing is that the envelope 2 has openings, so that the heat insulating material is able to participate in the formation of the outer outline of the envelope.
• a heat insulating element according to a second preferred embodiment of the invention is shown in Fig 2, which differs from the one in Fig 1 by the provision of the bottom of the envelope with a preferably square rigid plate 9 so as to give the heat insulating element a shape for better filling out rectangular corners of a space to be filled with heat insula ⁇ ting elements.
• the bag-like envelope 2 is made of a net-like material, which means that the openings will constitute the main part of the total circumferential surface of the envelope of the finished heat insulating element.
• the envelope has not at all to be of an elastic material, but it is important that the material is formable or shapable, so that a finished heat insulating element may be compressed and deformed for adaption to the shape of the space it shall be placed in.
• the envelope could for example be made of a perforated plastic bag. Another conceivable solution may be obtained by providing the envelope in the form of a perforated hose.
• the finished heat insulating elements according to the inven ⁇ tion are placed beside each other in a space to be filled with heat insulating material, and they may by means of their formability be brought to fill substantially this whole space or room.
• Heat insulating material located outermost of a heat insulating element will create mechanical connections with heat insulating material located outermost of adjacent heat insula ⁇ ting elements and also with members delimiting the space, such as wall boards, should it bear thereagainst, thanks to the presence of the openings 3 in the envelope. These mechanical connections will counteract that the heat insulating material located in the heat insulating element sinks together as a consequence of the influence of the gravitation thereupon.
• all heat insulating elements located in a space will form one single continuous heat insulating unit with a seemingly fixed shape, which completely fills the space in question.
• a preferred field of use of the heat insulating element accor ⁇ ding to the invention is insulation on caulking, i.e. filling the space created between door and window frames and the wall they are arranged in with insulating material.
• a use of mate ⁇ rial in loose condition is here almost out of the question, since it will be very troublesome to apply this and it has to take place after the application of the architrave around the doors and the windows.
• heat insulating elements according to the invention may be handled in an easy way and inserted into said space while completely filling it before said architrave is applied.
• FIG. 3 It is shown how a space between wall boards 10, for instance gypsum wall boards, of a wall construction is filled with heat insulating material. A number of bag-like envelopes are drawn onto a hose each of a set 11 of hoses and then placed in the space 12 to be filled. The heat insulating material is then blown or thrown into the envelopes and fills them while they together are adapted to the shape of the space and fill it.
• the envelopes are made of an elastic material, since they may then grow and fill the space without the production of any folds thereupon, which easily may be the case when they are made of an unextensible material and their dimensions in advance have to be determined a little too great.
• the elasticity of the envelope material should here mean that it is expandable, but it in the once expanded condition has no potential energy stored, which tends to contract the envelope again should it be possible to overcome the resistance thereto, since this may result in that the heat insulating elements over the time will tend to contract and the mechanical connections therebetween could then be broken and an undesirable sinking of the heat insulating material together would take place.
• the set 11 of hoses is removed and the envelopes are preferably closed at the top by applying any kind of clamp ring 13 or the like.
• the mechanical connections are created by fibres projecting out through the openings 3 and engage and are cross linked with fibres projec ⁇ ting out of openings of adjacent heat insulating elements 1, it will be advantageous that the filling of the envelopes takes place in the space, in which they are to be located, since an increased "cross linking" or engagement may be obtained.
• the invention is of course primarily applicable to the filling of vertical spaces with insulating material, since the influ ⁇ ence of the gravitation upon the loose and blowable material is then greatest, but this does of course not constitute any obstacle against use of the heat insulating element and the method for heat insulation according to the invention when filling other spaces, such as floor constructions. It may in some situations be advantageous to be able to apply the heat insulating element filling a space just as well as loose heat insulating material, but which may be brought into this space without any need of any apparatus for throwing the insulating material, and the pre-manufactured "sausages" of heat insulating material according to the invention may then substantially facilitate the work. However, "sausages" have no design defi ⁇ ning function here whatsoever.
• hose in the claims comprises all types of conducting elements with an inner channel and a surrounding wall, accordingly also rigid tubes or ducts.
• bag-like envelopes comprises all types of receptacle-like elements, i.e. which may contain anything, and accordingly also for instance hoses, as long as they are formable or shapable.
• the loose and blowable heat insulating material is mixed up with any suitable binder and that the mixture thus obtained is blown into the bag-like envelope 2.
• the binder and the envelope 2 will co-operate so as to avoid that the insulating material sinks together.
• the envelope 2 serves to counteract a sinking together before the binder has cured to an appreciable extension.

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• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Acoustics & Sound (AREA)
• Electromagnetism (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Thermal Insulation (AREA)
• Building Environments (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20382248

Family Applications (1)

Country Status (3)

Cited By (7)

Citations (2)

• 1991
  • 1991-03-22 SE SE9100866A patent/SE468327B/sv not_active IP Right Cessation
• 1992
  • 1992-03-09 AU AU13605/92A patent/AU1360592A/en not_active Abandoned
  • 1992-03-09 WO PCT/SE1992/000144 patent/WO1992016785A1/en active Application Filing

Patent Citations (2)

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