GB2154257A - Insulating slab for basement walls - Google Patents
Insulating slab for basement walls Download PDFInfo
- Publication number
- GB2154257A GB2154257A GB08503646A GB8503646A GB2154257A GB 2154257 A GB2154257 A GB 2154257A GB 08503646 A GB08503646 A GB 08503646A GB 8503646 A GB8503646 A GB 8503646A GB 2154257 A GB2154257 A GB 2154257A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mineral wool
- slab
- areas
- insulating
- insulating slab
- 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
- 239000011490 mineral wool Substances 0.000 claims abstract description 28
- 239000007767 bonding agent Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000005871 repellent Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical group [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/248—Moulding mineral fibres or particles bonded with resin, e.g. for insulating or roofing board
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- 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
- E04B1/0007—Base structures; Cellars
-
- 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
- E04B1/80—Heat insulating elements slab-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2503/00—Use of resin-bonded materials as filler
- B29K2503/04—Inorganic materials
Abstract
A slab (1) for the thermal insulation of basement walls consists of mineral wool, the fibres of which are bonded by means of a bonding agent at the intersections, the bonding agent being hydrophobic or the mineral wool being inpregnated with a hydrophobic impregnating agent. In order to make the mineral wool at least partly hygroscopic and conductive for water without substantially reducing its insulating properties, the mineral wool is treated by means of a stream of hot air in areas 5 connecting opposite edges on at least one side face at a temperature at which at least the impregnating agent will burn away or evaporate. The heat treatment is performed by leading the mineral wool past a stream of hot air along a side face of the slab from edge to edge whereby stripes (5) of treated areas are formed in the slab. <IMAGE>
Description
SPECIFICATION
Insulating slab for basement walls
This invention relates to insulating slabs for basement walls, which slabs are made of mineral wool, and to a method of manufacturing such insulating slabs.
Mineral wool slabs are often used for outside insulation of basement walls. In order to protect the insulating properties of the slab, also when the surrounding ground is very damp, the slabs must have water-repellent properties. The slabs, therefore, will not help to conduct water from the ground to a perimeter drain, which is often arranged to surround a basement wall, in order to prevent water from entering into the basement. In many cases it is recommended that a porous layer be arranged on the outside or between the insulation and the basement wall, in order to establish a vertical drain leading to the perimetric drain. It is, however, costly to arrange such a vertical drain, and it contributes very little to the total insulating properties of the structure.
The present invention aims to provide a drain in the mineral wool itself without substantially reducing the thermal insulating properties of the slabs and without substantially increasing the manufacturing costs of the insulating slabs.
According to one aspect of the invention, there is provided an insulating slab for basement walls, said slab consisting of mineral wool, the fibres of which at their intersections are bonded by a water-repellent bonding agent and/or in which the mineral wool is impregnated by means of a hydrophobic impregnating agent, wherein the mineral wool on at least one of its side faces is subjected to a heat treatment in areas connecting one edge with an opposite edge at such a temperature that at least the impregnating agent is removed to such an extent that the mineral wool is rendered hygroscopic in said treated areas.
Normally, the bonding agent and the impregnating agent are organic compounds which by means of a treatment at elevated temperatures will burn or evaporate.
Preferably, the treated areas comprise substantially parallel stripes, connecting two opposite edges and having received such treatment, therefore are not water-repellent any longer, but hygroscopic, and these stripes thus act as conduits with integral filtering means for conducting water downwards to a perimeter drain.
In accordance with a preferred embodiment of the invention, the treated areas comprise substantially parallel stripes having substantially equal width and depth. Preferably the stripes are not so wide that the surrounding ground may be pressed into the stripes, but the depth must be sufficient to provide a sufficient cross-sectional area in the conduits.
The stripes desirably have a width of 1 to 2cm and a mutual distance of 10 to 15cm.
With these dimensions, water from the surrounding ground is not normally forced into the mineral wool in spite of the water-repellent properties thereof.
Another aspect of the invention provides a method for the manufacture of an insulating slab according to the invention, which method comprises the step of passing a preformed slab of mineral wool past a hot stream of air by means of which at least the impregnating agent is burned away or evaporated in areas on at least one side face of the slab between opposite edges thereof.
The use of a hot stream of air makes the areas obtain the required depth and gives them the shape of relatively sharply defined stripes. Preferably, the air stream has a temperature of 400 to 600"C.
The invention will now be further described, by way of example, with reference to the drawing which illustrates one embodiment of an insulating slab according to the invention and a method of manufacturing the insulating slab according to the invention.
Mineral wool slabs for the thermal insulation of basement walls may be cut from a string of mineral wool, which has been deposited in a layer of a substantially greater thickness than the finished slab, and which before the deposition has passed a nozzle, from which a bonding agent is atomized.
Normally the bonding agent is a phenolic resin with a curing temperature of 250 to 300"C. During curing at elevated temperature the mineral wool is compressed so that the finished string obtains a specific weight of for example 80-120kg/m3, which will make the mineral wool sufficiently stiff and hard in order to withstand pressure from the surrounding ground. To improve rigidity, the contents of the bonding agent is relatively high, for example 1-2% by weight, which also provides the mineral wool with waterrepellent properties. These properties, however, prevent the mineral wool slabs from conducting water from the ground surrounding a basement to a perimeter drain normally arranged around a basement at a level below the basement floor.
The insulating slab according to the invention is provided with hygroscopic areas on at least one of its side faces, which areas extend from one edge of the slab to the opposite edge. The hygroscopic areas are preferably
1-2cm wide, substantially parallel stripes with a depth of 1-2cm. The stripes are made by moving the slab under a stream of hot air, whereby the bonding agent is burned or evaporated in a cross-section of the abovementioned dimensions.
The drawing shows how a mineral wool slab 1 is moved in the direction of the arrow 2 under a blower 3 which forces a stream of air heated to a temperature of 400-600"C, by means of, for example, an electric heating element 4, into the outer layers of the mineral wool slab aiong a stripe 5. The bonding agent being organic is burned away in the region of the stripe 5, which thereby is made hygroscopic. If such a slab is mounted on the outside of a basement wall, these treated stripes, which are preferably arranged in a vertical direction, form conduits, which can lead water from the surrounding ground to a perimetric drain.
If, in addition to the bonding agent, the mineral wool contains impregnating agents, for example heavy mineral or silicone oils, the hot air stream will in the way described above effect a burning or an evaporation of the impregnating agent.
The thermal insulating slabs according to the invention as compared with similar, non water-conducting slabs will have substantially the same insulating properties as such slabs, and the slabs will provide an adequate drainage from the outside of the basement walls without necessitating further arrangements such as the insertion of non-capillaric, porous materials or layers or sheets of corrugated material forming vertical drain conduits.
Claims (7)
1. An insulating slab for basement walls, said slab consisting of mineral wool, the fibres of which at their intersections are bonded by a water-repellent bonding agent and/or in which the mineral wool is impregnated by means of a hydrophobic impregnating agent, wherein the mineral wool on at least one of its side faces is subjected to a heat treatment in areas connecting one edge with an opposite edge at such a temperature that at least the impregnating agent is removed to such an extent that the mineral wool is rendered hygroscopic in said treated areas.
2. An insulating slab according to claim 1, wherein the areas comprise substantially parallel stripes having substantially equal width and depth.
3. An insulating slab according to claim 2, wherein the stripes are 1-2cm wide and have a mutual distance of 10-15cm.
4. An insulating slab substantially as described herein with reference to the drawing.
5. A method for the manufacture of an insulating slab for basements walls as claimed in any one of the preceding claims, said method comprising the step of passing a preformed slab of mineral wool past a hot stream of air by means of which at least the impregnating agent is burned away or evaporated in areas on at least one side face of the slab between opposite edges thereof.
6. A method according to claim 5, wherein the temperature of the stream of air is at 400-600'C.
7. A method for the manufacture of an insulating slab for basement walls, said method being substantially as described herein with reference to the drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK65584A DK152693C (en) | 1984-02-14 | 1984-02-14 | Insulation plate for basement walls and method of making the insulation plate |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8503646D0 GB8503646D0 (en) | 1985-03-13 |
| GB2154257A true GB2154257A (en) | 1985-09-04 |
| GB2154257B GB2154257B (en) | 1987-02-25 |
Family
ID=8096027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08503646A Expired GB2154257B (en) | 1984-02-14 | 1985-02-13 | Insulating slab for basement walls |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE3504873A1 (en) |
| DK (1) | DK152693C (en) |
| FI (1) | FI76861C (en) |
| GB (1) | GB2154257B (en) |
| NO (1) | NO161933C (en) |
| SE (1) | SE455509B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001085440A1 (en) * | 2000-05-09 | 2001-11-15 | Rockwool International A/S | A panel comprising mineral fibres and a thermosetting resin, use of the panel and method of preparing the panel |
| WO2006018578A1 (en) * | 2004-07-26 | 2006-02-23 | Saint-Gobain Isover | Insulation panel provided with air tight and rain screen coating and a waterproof coating |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3626366A1 (en) * | 1986-08-04 | 1988-04-14 | Gruenzweig Hartmann Glasfaser | Mineral fibre felt in the form of rolls or slabs for the insulation of hot surfaces on heating devices, and process for the production thereof and a heating device equipped therewith |
| DE19842721A1 (en) * | 1998-09-18 | 2000-03-23 | Rockwool Mineralwolle | Transport unit |
| EP2809849B2 (en) * | 2012-01-30 | 2020-11-18 | Rockwool International A/S | A drain element |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8126799U1 (en) * | 1981-09-14 | 1982-02-11 | Nolte, Udo, 5880 Lüdenscheid | "INSULATION PLATE" |
| DK443481A (en) * | 1981-10-07 | 1983-04-08 | Rockwool Int | INSULATION PLATE |
| DE3147316A1 (en) * | 1981-11-28 | 1983-06-01 | Rheinhold & Mahla Gmbh, 6800 Mannheim | LAMINATED MINERAL FIBER MAT AND METHOD FOR THE PRODUCTION THEREOF |
-
1984
- 1984-02-14 DK DK65584A patent/DK152693C/en not_active IP Right Cessation
-
1985
- 1985-02-05 FI FI850469A patent/FI76861C/en not_active IP Right Cessation
- 1985-02-08 SE SE8500591A patent/SE455509B/en not_active IP Right Cessation
- 1985-02-13 NO NO850560A patent/NO161933C/en unknown
- 1985-02-13 DE DE19853504873 patent/DE3504873A1/en active Granted
- 1985-02-13 GB GB08503646A patent/GB2154257B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001085440A1 (en) * | 2000-05-09 | 2001-11-15 | Rockwool International A/S | A panel comprising mineral fibres and a thermosetting resin, use of the panel and method of preparing the panel |
| WO2006018578A1 (en) * | 2004-07-26 | 2006-02-23 | Saint-Gobain Isover | Insulation panel provided with air tight and rain screen coating and a waterproof coating |
| EA008995B1 (en) * | 2004-07-26 | 2007-10-26 | Сэн-Гобэн Изовер | Insulation panel provided with air tight and rain screen coating and a waterproof coating |
| NO339212B1 (en) * | 2004-07-26 | 2016-11-14 | Saint Gobain Isover | Insulation panel equipped with airtight and rainproof coating and a waterproof cover. |
Also Published As
| Publication number | Publication date |
|---|---|
| FI76861B (en) | 1988-08-31 |
| NO161933B (en) | 1989-07-03 |
| NO161933C (en) | 1989-10-18 |
| SE8500591L (en) | 1985-08-15 |
| DK65584D0 (en) | 1984-02-14 |
| SE8500591D0 (en) | 1985-02-08 |
| GB8503646D0 (en) | 1985-03-13 |
| DE3504873C2 (en) | 1993-09-02 |
| DK152693C (en) | 1988-08-29 |
| FI850469A0 (en) | 1985-02-05 |
| GB2154257B (en) | 1987-02-25 |
| DK65584A (en) | 1985-08-15 |
| FI850469L (en) | 1985-08-15 |
| DE3504873A1 (en) | 1985-08-14 |
| NO850560L (en) | 1985-08-15 |
| FI76861C (en) | 1988-12-12 |
| DK152693B (en) | 1988-04-18 |
| SE455509B (en) | 1988-07-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940213 |