EP0363343B1 - Drainage for building walls - Google Patents

Drainage for building walls Download PDF

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Publication number
EP0363343B1
EP0363343B1 EP89870133A EP89870133A EP0363343B1 EP 0363343 B1 EP0363343 B1 EP 0363343B1 EP 89870133 A EP89870133 A EP 89870133A EP 89870133 A EP89870133 A EP 89870133A EP 0363343 B1 EP0363343 B1 EP 0363343B1
Authority
EP
European Patent Office
Prior art keywords
ventilation
wall
void
air
fact
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.)
Expired - Lifetime
Application number
EP89870133A
Other languages
German (de)
French (fr)
Other versions
EP0363343A1 (en
Inventor
Albert Tassin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tassin Albert
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0363343A1 publication Critical patent/EP0363343A1/en
Application granted granted Critical
Publication of EP0363343B1 publication Critical patent/EP0363343B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E04B1/7608—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 comprising a prefabricated insulating layer, disposed between two other layers or panels
    • E04B1/7612—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 comprising a prefabricated insulating layer, disposed between two other layers or panels in combination with an air space

Definitions

  • the invention relates to a type of drainage of residential walls making it possible to evacuate, as it is formed, the moisture which would tend to accumulate, whatever the cause.
  • the humidity in the walls decreases the thermal insulation of the material which is impregnated with it and promotes the formation of fungi and vermin, sources of many diseases.
  • the hollow wall whose vacuum (called “slide”) is ventilated or not has been used on a large scale for many years. It tends to disappear nowadays since the use of very insulating products (polyurethane, polyisocyanurate ”) spread in the void of the wall.
  • the present invention consists in remedying these drawbacks by placing the slide as close as possible to the interior atmosphere and by ventilating it energetically and very intermittently (for example, a few minutes per hour).

Landscapes

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

Abstract

Wall drainage formed by a strong but intermittent ventilation in the cavity of a double wall of a building in order to remove all the moisture which could accumulate therein; this makes it possible to apply techniques based on the small thermal inertia of the walls, which techniques are capable, in particular, of additional savings in energy of the order of 30 to 50%.

Description

L'invention concerne un type de drainage de murs d'habitation permettant d'évacuer, au fur et à mesure de sa formation, l'humidité qui aurait tendance à s'accumuler, quelle qu'en soit la cause. L'humidité dans les murs diminue l'isolation thermique du matériau qui en est imprègné et favorise la formation de champignons et de vermine, sources de nombreuses maladies.The invention relates to a type of drainage of residential walls making it possible to evacuate, as it is formed, the moisture which would tend to accumulate, whatever the cause. The humidity in the walls decreases the thermal insulation of the material which is impregnated with it and promotes the formation of fungi and vermin, sources of many diseases.

Le mur creux, dont le vide (appelé "coulisse") est ventilé ou non a été utilisé sur une grande échelle pendant de nombreuses années. Il a plutôt tendance à disparaitre actuellement depuis que s'est répandu l'usage de produits très isolants (polyuréthane, polyisocyanurate...) placés dans le vide du mur.The hollow wall, whose vacuum (called "slide") is ventilated or not has been used on a large scale for many years. It tends to disappear nowadays since the use of very insulating products (polyurethane, polyisocyanurate ...) spread in the void of the wall.

L'inconvénient de ces systèmes d'isolation est que l'humidité, introduite dans le mur soit par accident, soit par condensation, soit par capillarité ascentionnelle... en sort très difficilement. D'autre part, pour éviter les condensations importantes, on est obligé de renoncer à des techniques, qui permettraient d'obtenir des économies d'énergie très substantielles.The disadvantage of these insulation systems is that the humidity introduced into the wall either by accident, or by condensation, or by rising capillary action ... comes out very difficult. On the other hand, to avoid significant condensation, we are forced to give up techniques, which would make it possible to obtain very substantial energy savings.

La présente invention consiste à remédier à ces inconvénients en plaçant la coulisse aussi près que possible de l'atmosphère intérieure et en la ventilant de façon énergique et très intermittente (par exemple, quelques minutes par heure).The present invention consists in remedying these drawbacks by placing the slide as close as possible to the interior atmosphere and by ventilating it energetically and very intermittently (for example, a few minutes per hour).

Les avantages de cette méthode sont :

  • accélérer l'évacuation d'humidité du mur pendant la période de non-ventilation, l'air chaud et sec de la coulisse exerçant un véritable effet de pompage.
  • réduire les pertes thermiques et la consommation d'énergie électrique du ventilateur à des valeurs très acceptables.
  • en plaçant la coulisse très près de l'atmosphère intérieure, on réduit la capacité thermique du local, ce qui permet d' utiliser une conduite de chauffage beaucoup plus économique.
The advantages of this method are:
  • accelerate the evacuation of moisture from the wall during the period of non-ventilation, the hot and dry air of the runner exerting a real pumping effect.
  • reduce the heat losses and the electrical energy consumption of the fan to very acceptable values.
  • by placing the slide very close to the interior atmosphere, the thermal capacity of the room is reduced, which makes it possible to use a much more economical heating pipe.

Dans l'état de la technique actuelle, les procédés font appel à une ventilation naturelle, qui est forcément très irrégulière et aléatoire. De plus, l'évacuation de la vapeur d'eau condensée dans la paroi intérieure, est fortement freinée par la présence d'un isolant sur la paroi intérieure. Ou bien alors certains procédés (US-E-29.804, par exemple) ont recours à des artifices permettant de réaliser:

  • soit l'étanchéïté (à l'air) complète de la cavité intérieure
  • soit l'injection, dans cette cavité, d'air préalablement assèché.
  • soit l'assèchement de l'air à l'intérieur même de la cavité, par introduction, par exemple, de chlorure de calcium, qu'il faut évidemment renouveler régulièrement.
In the current state of the art, the methods use natural ventilation, which is necessarily very irregular and random. In addition, the evacuation of the condensed water vapor in the interior wall is greatly hampered by the presence of an insulator on the interior wall. Or else certain processes (US-E-29.804, for example) have recourse to devices making it possible to carry out:
  • either the complete airtightness of the interior cavity
  • or the injection, into this cavity, of previously dried air.
  • or the drying of the air inside the cavity, by introducing, for example, calcium chloride, which obviously has to be renewed regularly.

La ventilation selon l'invention sera obtenue notamment, de façon avantageuse

  • par la réduction maximale possible de l'épaisseur de la paroi intérieure.
  • par le placement de l'isolant sur la face intérieure de la paroi extérieure du mur l' objectif à atteindre étant d'accumuler, dans l'air de la coulisse, le maximum d'humidité venant de la paroi intérieure.
The ventilation according to the invention will be obtained in particular, advantageously
  • by the maximum possible reduction in the thickness of the interior wall.
  • by placing the insulation on the inner face of the outer wall of the wall, the objective to be achieved is to accumulate, in the air of the slide, the maximum humidity coming from the inner wall.

Claims (3)

  1. Operating procedure for ventilation of the wall void, in which the air is replaced intermittently, characterized by the fact that this renewal takes a few minutes per hour only.
  2. Operating procedure for ventilation of the wall void, in accordance with requirement "1", characterized by the fact that, between two active ventilation periods, the air in the void remains still.
  3. Operating procedure for ventilation of the wall void, in accordance with requirements "1" and "2" , characterized by the fact that the resistance to water damp diffusion between the in house atmosphere of the building and the void is reduced to minimum.
EP89870133A 1988-09-08 1989-09-07 Drainage for building walls Expired - Lifetime EP0363343B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8801030 1988-09-08
BE8801030A BE1002263A5 (en) 1988-09-08 1988-09-08 DRAINAGE OF HOUSING WALLS.

Publications (2)

Publication Number Publication Date
EP0363343A1 EP0363343A1 (en) 1990-04-11
EP0363343B1 true EP0363343B1 (en) 1996-10-23

Family

ID=3883616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89870133A Expired - Lifetime EP0363343B1 (en) 1988-09-08 1989-09-07 Drainage for building walls

Country Status (4)

Country Link
EP (1) EP0363343B1 (en)
AT (1) ATE144576T1 (en)
BE (1) BE1002263A5 (en)
DE (1) DE68927365D1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343474A (en) * 1964-09-22 1967-09-26 Sohda Yoshitoshi Building with a vent device
USRE29804E (en) * 1968-05-22 1978-10-17 Insulating wall unit
GB1319831A (en) * 1970-08-20 1973-06-13 Daly G M Buildings
US4295415A (en) * 1979-08-16 1981-10-20 Schneider Peter J Jr Environmentally heated and cooled pre-fabricated insulated concrete building

Also Published As

Publication number Publication date
EP0363343A1 (en) 1990-04-11
DE68927365D1 (en) 1996-11-28
BE1002263A5 (en) 1990-11-13
ATE144576T1 (en) 1996-11-15

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