GB2043153A - Addition of heat insulation to a sloping roof and an appliance for the addition - Google Patents
Addition of heat insulation to a sloping roof and an appliance for the addition Download PDFInfo
- Publication number
- GB2043153A GB2043153A GB8002277A GB8002277A GB2043153A GB 2043153 A GB2043153 A GB 2043153A GB 8002277 A GB8002277 A GB 8002277A GB 8002277 A GB8002277 A GB 8002277A GB 2043153 A GB2043153 A GB 2043153A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- roof
- rafters
- flexible tube
- insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 52
- 238000005253 cladding Methods 0.000 claims abstract description 28
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 15
- 238000009423 ventilation Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011810 insulating material Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 20
- 239000010451 perlite Substances 0.000 claims description 7
- 235000019362 perlite Nutrition 0.000 claims description 7
- 239000010455 vermiculite Substances 0.000 claims description 6
- 235000019354 vermiculite Nutrition 0.000 claims description 6
- 229910052902 vermiculite Inorganic materials 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims 1
- 239000012774 insulation material Substances 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 238000009408 flooring Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000266 injurious effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
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
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
- E04D13/1668—Insulation of the roof covering characterised by its integration in the roof structure the insulating material being masses or granules applied in situ
- E04D13/1675—Insulation of the roof covering characterised by its integration in the roof structure the insulating material being masses or granules applied in situ on saddle-roofs or inclined roof surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
A flexible tube 6 of rubber or plastics sheet is fitted into an insulation space R between adjacent rafters 1, roof cladding 3 and loft ceiling boards 4, through opening 8 in ridge area 9. Tube 6 is then fitted with insulation material 5, e.g. expanded inorganic granules or foamed plastics, until the tube 6 fits tightly against rafter 1, roof cladding 3 or roof battens 2, and the loft ceiling boards 4. Alternatively tube 6 is provided with separation-controlling device(s) 10, which may include apertures 12, and is filled until it fits tightly between the rafters 1 and lies only gainst loft ceiling boards 4 so as to leave a ventilation space Rv below the roof cladding 3, and device(s) 10 may cause water drainage channels 14 to be formed in the upper surface of filled tube 6. <IMAGE>
Description
SPECIFICATION
Method for the addition of heat insulation to a sloping roof and a heat insulation appliance for carrying out the method
This invention relates to a method for the addition of heat insulation to a sloping roof having rafters, possibly also roof battens, roof cladding and loft ceiling boards, and in which heat insulating material is introduced into spaces between adjacent rafters, the roof cladding and the loft ceiling boards. The heat insulation thereby achieved is of particular importance in the case of lofts already erected and which serve as living rooms or for industrial purposes.Within the scope of the invention "roof cladding" comprises all normal fitments used as roof claddings, such as roofing tiles or asbestos cement sheets. "Loft ceiling boards" describes building materials that are normally fixed below the rafters and consist for example of asbestos cement sheets or plasterboards.
In known methods, paper, straw or similar materials have been placed, in more or less makeshift manner, as heat insulation in the spaces between adjacent rafters, roof cladding and loft ceiling boards, by which these spaces become insulation spaces, which is what they are also called in connection with the invention. Although the known methods bring about a certain amount of heat insulation, the work that has to be carried out is however expensive. The results achieved, moreover, are not satisfactory in a functional respect, for the known methods do not use materials that impede diffusion of water vapour, from the loft spaces associated with the loft ceiling boards, through the heat insulating material to the roof cladding, where it condenses and drips off. This leads to soaking of the heat insulating materials and to the occurrence of rotting.In addition to this, soaking reduces the heat insulation.
It is known in the building trade for other heat insulation purposes to introduce foamed plastics, expanded grains of perlite (Registered
Trade Mark) or expanded grains of vermiculite and similar heat insulating materials into suitable cavities provided for this purpose. This has hitherto not influenced the problem of adding supplementary heat insulation to a sloping roof. If the known methods were to be carried out with foamed plastics, such as expanded perlite or expanded vermiculite, the defects dependent on the condensation effect described would remain unchanged. Moreover, it is not unlikely that the granular material would trickle out of the apertures which the insulation spaces necessarily possess.
The main object of the invention is to provide a method for the addition of heat insulation to a sloping roof such that after installation of the heat insulation troublesome condensation effects such as described above can no longer occur. A secondary object is that it should be possible to install the heat insulating material in very simple manner.
According to the present invention a fillable flexible tube of rubber or plastics is first installed in an insulation space between adjacent rafters, roof cladding and loft ceiling boards, and heat insulating material is packed into the flexible tube under pressure. Preferably, the filling takes place in such a way that the filled tube completely fills its associated insulation space and fits tightly against the rafters, the roof battens (if present), the roof cladding and the loft ceiling boards. It is advantageous to make use of flexible tube which consists of rubber sheet or plastics sheet. Expanded grains of perlite, expanded grains of vermiculite or similar materials can be used as the heat insulating material and can be introduced into the flexible tube in an insulation space by means of a current of air.
Obviously provision must be made for the conveying air to escape from the tube until it is completely filled with heat insulating material. For this purpose suitable air-escape apertures can be provided in the neighbourhood of a filling aperture which is attached to a conveyor pipe for the expanded grains of perlite, expanded grains of vermiculite or the like, or it can be effected manually. Foamed plastics can also be employed as heat insulating material but again it must be possible to remove the air present in the flexible tubes. If the flexible tube has a filling aperture it is desirable that this should be subsequently closed off. It is obvious that the flexible tube is closed, or substantially closed, at its end remote from the filling end.
If one operates according to the teaching of the invention as described, with each insulation space provided with a fillable flexible tube, when the tubes are filled up with heat insulating material they readily fit tightly against adjacent rafters, and roof battens that may be present, the roof cladding and the loft ceiling boards, provided that the heat insulating material has been packed into the flexible tubes under sufficient pressure. The construction is such that close fitting arises between the building components mentioned and the outer wall of the tube, and an adequate seal, which may be of the nature of a labyrinth seal, is produced, so that water vapour can no longer diffuse to the roof cladding and condense there, or at least cannot do so in troublesome quantity.Consequently by operating in the manner described the heat insulation subsequently installed directly operates as a vapour brake or vapour lock. In the neighbourhood of the ridge itself or of a ridge flooring area the spaces between rafters, roof cladding and loft ceiling boards, defined above as insulation spaces, are generally freely accessible in normal sloping roofs, so the flexible tubes can be introduced without difficulty. Filling them with the heat insulating material likewise presents no difficulty, as the usual auxiliary appliances for production and transfer of foamed plastics, or the usual conveying equipment for expanded grains of perlite, expanded grains of vermiculite or the like can be used.In fact, equipment of this kind is normally available in the building trade whenever it is required to introduce heat insulating materials into cavities in buildings in the manner previously described above.
According to another aspect of the invention, a heat insulating appliance for a sloping roof consists of a tube of rubber sheet or plastics sheet fitted into an insulation space and filled with a heat insulating material until it completely occupies its respective insulation space.
The method according to the invention can also be carried out in such a way that a ventilation space remains clear below the roof cladding. In this respect the invention teaches that the flexible tube in the filled condition completely occupies the space between the rafters, but leaves a ventilation space clear of the roof cladding and the roof battens (if any), and that the heat insulating material is packed into the tube under pressure in such a way that the flexible tube fits tightly against the rafters only and also lies on top of the loft ceiling boards. If one works in this way then the fillable flexible tubes when filled with heat insulating material do indeed lie against adjacent rafters, and they also lie on the loft ceiling boards under the influence of gravity, the ventilation space described above however remains.However, previously, on account of the close fitting to the rafters an adequate seal of the nature of a labyrinth seal occurs. Nevertheless, an injurious moist atmosphere cannot even form from any water or water vapour that may penetrate because it is carried away by the ventilation that spontaneously takes place in the ventilation spaces. In fact the ventilation spaces are as a rule directly open to a sufficient extent for such ventilation, as far as the so-called ridge flooring and also the ridge itself, the ventilation itself basically arising from the effect of thermal driving forces and/or suction by the wind blowing past the apertures, although exceptionally additional ventilators can be provided.
A heat insulation appliance for the lastdescribed form of application of the method according to the invention is yet another aspect of the present invention. This appliance is characterized in that the flexible tube is subdivided longitudinally by one or more separation-controlling devices, and thereby can be filled up to form a non-circular crosssection, generally rectangular or oval. Thus, as the flexible tube is filled ith heat insulating material the separation-controlling devices are loaded in tension and prevent the tube as it is filled from stretching into regions which are to function as ventilation spaces. Moreover, the separation-controlling devices can be constructed as longitudinal walls with apertures.This is advantageous in that the flexible tube can still be filled easily, with the heat insulating material through an opening at one end and also pass through the apertures and consequently completely fill the interior of the flexible tube. The separation-controlling devices can, however, also be simple straps.
A form of construction notable for simplicity and reliability of operation is characterized in that the flexible tube consists of a basic tube which in the packed condition possesses a diameter approximately corresponding to the thickness of the insulation space and that on one side of the basic tube or on two sides diametrically opposite supplementary sheets are attached in U-shape, wherein the wall areas of the basic tube over which the supplementary sheet or sheets are attached are provided with apertures. It is within the scope of the invention to arrange several basic tubes side by side in the manner described, when simple covering webs of sheet are then located between two adjacent basic tubes as supplementary sheet webs.By suitable dimensioning of the separation-controlling devices it can be arranged without difficulty that the filled tubes form, on their backs, one or more channels running in the direction of length of the tube, which serve for the discharge of percolated or condensed water.
Two embodiments of the invention will now be described in detail with reference to the accompanying drawings, in which: Figure 1 is a vertical section through a sloping roof with space that is subsequently to be provided with heat insulation;
Figure 2 corresponds to Fig. 1 but with fillable flexible tubing inserted into the insulation space;
Figure 3 corresponds to Fig. 2 after heat insulation material has been packed into the flexible tube;
Figure 4 is a fragmentary section on a considerably increased scale, taken from the line A-A of Fig. 3;
Figure 5 corresponds to Fig. 3 but shows another form of construction of the invention; and
Figure 6 is a fragmentary section, on a considerably increased scale, taken from the line A-A of Fig. 5.
In Figs. 1 to 4 a sloping roof has rafters 1, roof battens 2, roof cladding 3, and loft ceiling boards 4.
Spaces R (called insulation spaces, because into them heat-insulating material 5 is to be introduced) exist between the rafters 1, roof cladding 3 and loft ceiling boards 4. In Fig. 1 one of these insulation spaces R is shown as still completely empty. In Fig. 2 a fillable flexible tube 6 of rubber sheet or plastics sheet is introduced into the insulation space
R, and the tube 6 is of such a size that in its fully-filled condition it will completely fill the insulation space R with which it is associated.
This is made clear by comparative examination of Figs. 2, 3 and 4. In Fig. 3 the heat insulating material 5 has been packed into the flexible tube 6 under pressure, through a conveyor pipe 7, and Figs. 3 and 4 show that the filled flexible tube 6 fits against the roof rafters 1, the roof battens 2, the roof cladding 3 and the loft ceiling boards 4 sufficiently tightly that water vapour diffusion between tube 6 and rafters 1 towards the roof cladding 3 can in practice no longer take place. The heat insulating material 5 may consist of expanded grains of perlite. It is conveyed through the conveyor pipe 7 already mentioned, which is connected to an appropriate feeding equipment. During the filling process excess air can naturally escape.Figs. 1 to 4 make it immediately clear that no difficulties arise in first introducing the flexible tube 6 into the insulation space R of a sloping roof in the manner described, and subsequently filling this tube 6 with the insulating material 5.
The tube 6 is simply pushed into the insulation space R through an opening 8 which in any case remains clear between the roof claddings and the loft ceiling boards 4 in the ridge flooring area 9. Should such an opening have become obstructed it can be cleared without difficulty.
The heat insulation appliance which is a claimed part of the invention is to be seen in
Figs. 3 and 4 as consisting of a flexible tube 6 or rubber sheet or plastics sheet which is filled with heat insulating material 5 until it completely occupies the respective insulation space R between the rafters 1, roof cladding 3 and loft ceiling boards 4.
According to Figs. 5 and 6 the construction is modified so that although in its filled state the flexible tube 6 completely occupies the space between the rafters 1, yet it leaves clear a ventilation space Rv between its own upper surface and the roof battens 2. The space R is thereby subdivided into an insulation space R1 and a ventilation space Rv. The packed flexible tube 6 only fits tightly in between the rafters 1 and lies on the loft ceiling boards 4, as will be apparent from a comparative examination of Figs. 5 and 6 with Figs. 3 and 4.
In Fig. 5 the heat insulating material has been packed into flexible tube 6 under pressure through a conveyor pipe 7. It is seen from Fig. 4 that resulting from the tight fitting of the flexible tube 6 to the rafters 1 a labyrinth sealing effect is brought about to the extent that water vapour diffusion through the labyrinthine gap is thereby practically eliminated.
According to Figs. 5 and 6, when the heat insulation material is packed in, the flexible tubes 6 then merely fill the insulation space R1 and leave the ventilation space Rv unoccupied.
The details of how this heat insulation appliance is constructed are particularly learnt from
Fig. 6. It consists of a flexible tube 6 of rubber sheet or plastics sheet which in the packed condition occupies the insulation space Rj between adjacent rafters 1 and the loft ceiling boards 4 of the sloping roof, but it is however seen from Fig. 6 that the flexible tube 6 is subdivided longitudinally by a separation-controlling device 10 extending along its length and thereby is filled up to form an essentially non-circular cross-section which is practically rectangular. The separation-controlling device 10 forms a longitudinal wall inside flexible tube 6 and possesses apertures 11.In the example of construction and according to the preferred form of construction the design is so arranged that flexible tube 6 consists of a basic tube which in the packed condition possesses a diameter approximately corresponding to the thickness of the insulation space Rj. In the example of construction a supplementary sheet 1 2 is attached in Ushape, e.g. welded, to the basic tube 6. The wall areas 1 3 of the basic tube 6, over which the supplementary sheet 1 2 is attached, are provided with the apertures 11 already mentioned, and the design as a whole is so arranged that when the flexible tube 6 is packed with the heat insulating material 5 water discharge channels 1 4 that can be seen in Fig. 6 are formed and in them water can run away. This may in particular be water which has percolated through a leaky roof cladding. To this extent within the scope of the invention the heat insulating appliance fulfils a secondary function by discharging such water.
Claims (11)
1. A method for the addition of heat insulation to a sloping roof having rafters, roof cladding, and loft ceiling boards in which heat insulating material is introduced into spaces between adjacent rafters, the roof cladding and the loft ceiling boards, a fillable flexible tube of rubber sheet or plastics sheet first being installed in the insulation space between adjacent rafters, roof cladding and loft ceiling boards, and then the heat insulating material being filled into the flexible tube under pressure.
2. A method as in Claim 1, wherein the fillable tube in its filled state completely fills its associated insulation space and fits tightly against its associated rafters, roof cladding and loft ceiling boards.
3. A method as in either of Claims 1 and 2, wherein the heat insulating material is expanded grains of perlite or expanded grains of vermiculite introduced into the tube by means of a conveying gas.
4. A method as in either of Claims 1 and 2, wherein foamed plastics is introduced into the tubes as the heat insulating material.
5. A method as in any one of Claims 1 to 4, wherein the tube is closed off at a filling end after packing in the heat insulating material.
6. A heat insulation appliance for insulating sloping roofs as in the method of any one of Claims 1 to 5, and consisting of a tube of rubber sheet or plastics sheet fitted into the insulation space until it completely occupies the insulation space.
7. A method as in Claim 1, wherein the flexible tube in the filled condition completely occupies the space between the rafters, but leaves a ventilation space clear of the roof cladding, or clear of roof battens if provided, and that the heat insulating material is packed into the tube under pressure in such a way that the flexible tube fits tightly against the rafters only and also lies on top of the loft ceiling boards.
8. A heat insulation appliance for use in the method of Claim 7, consisting of a flexible tube subdivided longitudinally by one or more separation-controlling devices and thereby can be filled up to form an essentially non-circular rectangular or oval cross-section which leaves clear the ventilation space.
9. A heat insulation appliance as in Claim 8, wherein the flexible tube consists of a basic tube which in the packed condition possesses a diameter approximately corresponding to the thickness of the insulation space and that on one side of the basic tube or on two sides diametrically opposite supplementary sheets are attached in U-shape, wherein the wall areas of the basic tube over which the supplementary sheet or sheets are attached are provided with apertures.
1 0. A heat insulation applicance as in either of Claims 8 and 9, wherein the separation-controlling device or devices are so dimensioned that in the filled condition one or more water discharge channels form on the flexible tube.
11. A method for the addition of heat insulation to a sloping roof of the type shown in Fig. 1 of the accompanying drawings, the method being substantially as hereinbefore described with reference to Figs. 2 to 4 or
Figs 5 and 6 of the accompanying drawings.
1 2. A heat insulation appliance as used in a roof and substantially as hereinbefore described with reference to Figs. 2 to 4 or Figs.
5 and 6 of the accompanying drawings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792902587 DE2902587B2 (en) | 1979-01-24 | 1979-01-24 | Method for introducing thermal insulation in a cavity formed between two rafters, an external roof skin and an internal, already existing roof lining, as well as thermal insulation for such cavities |
| DE19792912795 DE2912795B2 (en) | 1979-03-30 | 1979-03-30 | Thermal insulation for a cavity formed between two rafters, an external roof skin and an internal, already existing roof lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2043153A true GB2043153A (en) | 1980-10-01 |
| GB2043153B GB2043153B (en) | 1982-11-17 |
Family
ID=25777533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8002277A Expired GB2043153B (en) | 1979-01-24 | 1980-01-23 | Addition of heat insulation to a sloping roof and an appliance for the addition |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT364932B (en) |
| DK (1) | DK27380A (en) |
| FR (1) | FR2447427A1 (en) |
| GB (1) | GB2043153B (en) |
| IT (1) | IT1130896B (en) |
| LU (1) | LU82108A1 (en) |
| NL (1) | NL8000411A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3100672A1 (en) * | 1981-01-12 | 1982-08-26 | Helmut 7015 Korntal Hoffmann | Process for filling cavities, in particular in house roofs |
| DE3129231C2 (en) * | 1981-03-04 | 1983-09-15 | Braun-Bautenschutz, 5787 Olsberg | Multi-layer element for holding insulation materials |
| DE3135199A1 (en) * | 1981-09-05 | 1983-03-17 | Chemische Werke Hüls AG, 4370 Marl | METHOD FOR PRODUCING INSULATION BASED ON POLYVINYL CHLORIDE |
| DE3402377A1 (en) * | 1984-01-25 | 1985-08-01 | Perlite-Dämmstoff-GmbH & Co, Beratung und Vertrieb, 4600 Dortmund | Insulating element for building purposes |
| NL181037C (en) * | 1984-02-03 | 1987-06-01 | Martinus Laurentius Jozef Duin | METHOD FOR INSULATING CRAWL SPACE, AND INSULATING ELEMENT THEREFOR. |
| DE3508468A1 (en) * | 1985-03-09 | 1986-09-11 | Mainbau Estrich- und Fußboden GmbH, 8500 Nürnberg | Method of subdividing a cavity floor |
| FR2623543A2 (en) * | 1985-10-25 | 1989-05-26 | Guillot Paul | Process for insulating the sloping parts of roofs using bulk materials |
| FR2589180B1 (en) * | 1985-10-25 | 1988-10-14 | Guillot Paul | PROCESS FOR REALIZING THE RAMPING PARTS OF ROOFS WITH BULK MATERIALS |
| EP0303738B1 (en) * | 1987-08-20 | 1992-01-22 | Commercial Roof Service B.V. | Insulating tile for applying on roofs, galleries and such like |
| FR2623228A1 (en) * | 1987-11-18 | 1989-05-19 | Faivre Michel | Roofing in profiled panels in synthetic material particularly for verandas and process for assembling these panels |
| DE19751838A1 (en) * | 1997-11-22 | 1999-05-27 | Olaf Richardsen | Building cavity insulation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2252578A (en) * | 1939-04-26 | 1941-08-12 | Harry D Powell | Insulation of buildings |
| GB870923A (en) * | 1958-10-10 | 1961-06-21 | Bakelite Ltd | Improvements in or relating to synthetic building materials |
| GB1245463A (en) * | 1968-05-28 | 1971-09-08 | Reginald Ernest Feakins | A method of insulating buildings |
| DK139108B (en) * | 1976-03-05 | 1978-12-18 | Rockwool Int | Method for isolating hard-to-reach cavities. |
-
1980
- 1980-01-17 AT AT0024180A patent/AT364932B/en not_active IP Right Cessation
- 1980-01-23 IT IT19387/80A patent/IT1130896B/en active
- 1980-01-23 DK DK27380A patent/DK27380A/en unknown
- 1980-01-23 FR FR8001446A patent/FR2447427A1/en not_active Withdrawn
- 1980-01-23 LU LU82108A patent/LU82108A1/en unknown
- 1980-01-23 NL NL8000411A patent/NL8000411A/en not_active Application Discontinuation
- 1980-01-23 GB GB8002277A patent/GB2043153B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT8019387A0 (en) | 1980-01-23 |
| AT364932B (en) | 1981-11-25 |
| LU82108A1 (en) | 1980-04-23 |
| IT1130896B (en) | 1986-06-18 |
| GB2043153B (en) | 1982-11-17 |
| NL8000411A (en) | 1980-07-28 |
| ATA24180A (en) | 1981-04-15 |
| DK27380A (en) | 1980-07-25 |
| FR2447427A1 (en) | 1980-08-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |