EP1176264A1 - Bande de drainage - Google Patents

Bande de drainage Download PDF

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Publication number
EP1176264A1
EP1176264A1 EP01202555A EP01202555A EP1176264A1 EP 1176264 A1 EP1176264 A1 EP 1176264A1 EP 01202555 A EP01202555 A EP 01202555A EP 01202555 A EP01202555 A EP 01202555A EP 1176264 A1 EP1176264 A1 EP 1176264A1
Authority
EP
European Patent Office
Prior art keywords
strip
collection
leaf
longitudinal edge
insulation layer
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
Application number
EP01202555A
Other languages
German (de)
English (en)
Other versions
EP1176264B1 (fr
Inventor
Dirk Johannes Van Schellebeek
Jacob Van Rooij
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.)
Ubbink BV
Original Assignee
Ubbink Nederland BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ubbink Nederland BV filed Critical Ubbink Nederland BV
Publication of EP1176264A1 publication Critical patent/EP1176264A1/fr
Application granted granted Critical
Publication of EP1176264B1 publication Critical patent/EP1176264B1/fr
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
    • E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
    • E04B1/644—Damp-proof courses

Definitions

  • the invention relates to a device for retaining or collecting and discharging moisture from or out of a cavity wall having an (outer) leaf of masonry and having an insulation layer against the inner leaf.
  • the outer leaf of the cavity wall particularly through the joints may get saturated and wet at the inner surface, as a result of precipitation falling on it. This results in downward transport of water through and past the outer leaf, as well as in the air space of the cavity. Said water needs to be led out again before it contacts moisture-sensitive structural members, such as in particular wooden casings or in case of an extension building, an inner wall formed by an extension of the outer leaf below that outer leaf.
  • Aforementioned devices may be made of a synthetic material and have a flat horizontal strip lying on a number of bricks of the outer leaf and a rear upturn, extending upwards at least almost perpendicular from the rear edge of the flat strip.
  • the rear upturn is meant to abut the insulation layer, in order to thus close off the vertical moisture transport path in the cavity.
  • a lead flashing which is accommodated flat in the outer leaf and extends through the cavity towards the inner leaf, to which the flashing is attached by nails or in which it is accommodated.
  • the thickness dimensions of the outer leaf, the insulation layer and the cavity may vary, and namely by a difference of some centimetres. As a result it often occurs that the flat strip extends over some centimetres into the cavity and thus with the rear upturn forms a collection place for mortar residues or mortar burrs that retain moisture and may possibly extend against the insulation. It can also occur that the insulation layer is relatively thick, in which case the flat strip will protrude at the front side of the outer leaf.
  • the invention provides a device for retaining or collecting and discharging moisture from or out of a cavity wall having a leaf, comprising a collection and discharge strip having a front longitudinal edge and a rear longitudinal edge, in which the rear longitudinal edge is destined to be situated at the inner or cavity side of the leaf, and in which the rear longitudinal edge is provided with a rigid rear strip integrally formed with the collection strip, for collecting moisture and guiding it to the collection strip, which rear strip extends upwardly inclined from the collection strip and to the rear.
  • the rear edge extends upwardly inclined and to the rear from the collection strip at a fixed angle with respect to the collection strip which angle is smaller than 60 degrees.
  • said angle is smaller than 45 degrees, even more preferably smaller than 30 degrees, in particular approximately 20 degrees.
  • the height of the rear strip can be kept small here, in the order of magnitude of a brick's height.
  • Placement is further ensured and facilitated when the device forms a rigid unity.
  • the width of the collection strip is larger than half a brick's size, preferably larger than 9 cm, preferably a little larger than approximately 11 cm. In this way it is achieved that the collection strip has a width that is larger than the most common bricks.
  • the rear strip extends rearward over a -horizontal- distance which is in the order of magnitude of 1/4 to once the width of the collection strip. In this way it is ensured that the device can be placed in the correct manner in almost all cavity arrangements possible.
  • the device can be slid from the outside onto a row of bricks of the outer leaf. In renovation activities removing only one row of bricks will then suffice.
  • the front longitudinal edge is provided with an integrally formed pending placement member, which forms a stop when placing the device in/on the outer leaf.
  • Said pending placement member or placement strip can also be used for connection to a roofing layer, such as a bitumen layer of for instance an adjacent flat roof.
  • the collection strip is provided with integrally formed profilings that are transverse to the length of the strip, that may be situated at any distance from each other.
  • the profilings preferably are shaped like elevations projecting from the upper side, between which transverse channels have been formed.
  • the channels guarantee discharge even when there are mortar residues on a portion of the collection strip that extends in the cavity, in particular underneath those mortar residues.
  • the profiling height of the collection strip here is smaller than or equal to the height of the joint anyway, so that the bed joint height in the outer leaf can remain constant.
  • the profilings extend beyond the rear longitudinal edge of the collection strip into the rear strip, as a result of which the angle between both strips is extra rigid.
  • the collection strip at the outer surface of the outer leaf will only have the height of a strip thickness and can be covered with a layer of mortar of reasonable thickness.
  • the total thickness of the collection strip at the location of the profilings, within a distance of half a brick from the front longitudinal edge, is smaller than or equal to a joint thickness.
  • the invention further relates to an assembly of a device according to the invention and a cavity wall having an inner leaf, an outer leaf of masonry, and a cavity situated in between them and an insulation layer placed against the inner leaf, at the cavity side, in which the collection strip has been placed on a horizontal series of bricks in the outer leaf and with its rear strip extending into the insulation layer.
  • the rear strip ends at a distance from the inner leaf.
  • the profilings extend in the horizontal joints, between bricks that are situated immediately above each other.
  • the invention further provides a method for placing a device according to the invention in a cavity wall having an outer leaf of masonry and an insulation layer at the cavity side of the inner leaf, a horizontal series of bricks being removed from the outer leaf, the device being inserted into the slit thus created with its rear strip in the lead until the edge of the rear strip abuts the insulation layer, subsequently making an incision in the insulation layer along said edge with a blade, pressing the rear strip into the incision made until the front longitudinal edge comes at the level of the outer surface of the outer leaf, preferably by means of abutment, and placing the bricks back in the outer leaf and securing them with mortar.
  • This method is particularly suitable for renovation building.
  • the water collection strip 1 shown in the figures 1 and 2A,2B is manufactured as one rigid unity from a synthetic material, such as polyethene or polyvinyl chloride and comprises a flat moisture discharge/collection strip 2, which at the front edge merges into a pending placement strip 3.
  • a pending placement strip 3 At the rear edge the strip 2 via rigid angled area 6, merges into a rear strip 4 extending at an angle ⁇ in this example 20° upward and to the rear, which rear strip is provided with a hard rear edge 5.
  • profilings or ribs 7 have been formed in the strips 2 and 4, which are at any -possibly short- distance from each other and extend transverse to the longitudinal direction of the water collection strip 1 and have inclined walls 8 and between them define discharge channels 9.
  • the ribs 7 end in a tip at both ends.
  • the upper edges of the ribs 7 run upwardly inclined to the rear.
  • the ribs 7 form a stiffening of the angled area 6.
  • the collection strip 2 runs horizontally from the placement strip 3 to the rear strip 4. At the lower side the angled area 6 is free from protrusions.
  • FIG 3 the cavity wall 10 is shown, having an outer leaf 11 made of bricks 15 and mortar 16, a brickwork (or glued) inner leaf 12 and a cavity 13 situated in between them.
  • an insulation layer 14 has been arranged against the inner leaf 12.
  • an air space 13a is left in the cavity 13.
  • the placement strip 3 here extends along the outside of the bricks 15b, and in this example is provided with a somewhat turned lower edge 3a, which extends over an edge upturn 16 of a flat roof 20 covered with a layer of bitumen 21.
  • the flat roof 20 forms the roof of a room 30 situated outside of the cavity wall 11, which room may be an annex garage, shed, work room or kitchen.
  • the collection/discharge strip 2 lies flat on the bricks 15b. With the bottom inner edge the brick 15a supports on the tops of the ribs 7, and further on a layer of mortar that has been applied on the strip 2.
  • the rearward inclined and upwardly extending rear strip 4 extends in a fitting manner into the insulation layer 15.
  • the water collection strip 1 collects moisture that flows/falls downward in the directions A and A'. Transversely directed discharge is improved by ribs 7. The discharge to the outside takes place through the mortar and through open cross joints.
  • the width x of the bricks 15 may be 11 cm, the width of the cavity s 11 cm as well, the width z of the insulation layer 14 6 cm and the width y of the air cavity 13a 5 cm.
  • the width of the strip 2 may here be 13 cm and the horizontal extension of the strip 5 5 cm.
  • the height of the edge 5 is lower than the one of a brick 15, for instance 3 cm to 6 cm.
  • connection rear strip-insulation layer is always perfect, irrespective of the depth over which the rear strip extends into the insulation layer. In this way -without losing effectiveness- dimensional differences in the outer leaf, cavity and insulation layer can be compensated, without additional measures being needed.
  • the water collection strip 1 can easily be arranged in the building of new houses during erection of the outer leaf of a cavity wall. In those cases the insulation layer will already be fixed to the inner leaf at the level where bricklaying takes place, with means that are known per se.
  • a series of water collections strip 1 according to the invention are placed on the then upper row of bricks of the outer leaf, in which the water collection strips 1 overlap each other, and may also engage into each other at the location of the ribs 7, as shown in figure 1.
  • the length of the overlap can be kept short, without there being danger of sideward leaking transport in the overlap.
  • the edge 5 of the rear strip 4 With the help of the rear edge 5 of the rear strip 4 an incision is made in the insulation layer 14 at the wanted height with a blade that is moved along the rear strip. Because the water collection strip is rigid the edge 5 can be placed stably at the correct height along the insulation layer 14. The edge 5 here functions like a kind of ruler to the blade. By keeping the blade in one plane with the plane of the rear strip 4 as much as possible it can be ensured that the incision has the same direction as the rear strip 4 in placed position.
  • the water collection strip 1 can be further moved in the direction of the inner leaf, in which the rear strip penetrates the incision made, until the pending placement strip 3 abuts the surface of the outer leaf.
  • the water collection strip 1 then lies in its place and bricklaying the outer leaf can be proceeded with.
  • a water transport barrier can also be arranged in a cavity wall afterwards in an advantageous manner. This may for instance be wanted when a lead flashing has to be replaced or when an extension building has been created to an existing cavity wall. The latter situation is shown in figure 3.
  • the water collection strip according to the invention has a low construction height, lower than the height of brick of the outer leaf, only one layer of bricks 15a needs to be removed from the outer leaf 11 for placing the water collection strip 1. There is sufficient room of movement to make the incision along the rear edge 5 in the insulation layer 14 and to subsequently insert the rear strip 4 into the insulation layer 14. After that the removed bricks can simply be replaced at their original place with mortar.
  • the rigid design of the water collection strip 1 facilitates these actions.
  • the water collection strip can be stacked in a nesting manner, in which the ribs are able to fall into each other.
  • ribs are dispensed with the water collection strip can be made by extrusion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Revetment (AREA)
EP20010202555 2000-07-05 2001-07-04 Bande de drainage Expired - Lifetime EP1176264B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1015617 2000-07-05
NL1015617A NL1015617C2 (nl) 2000-07-05 2000-07-05 Wateropvangstrook.

Publications (2)

Publication Number Publication Date
EP1176264A1 true EP1176264A1 (fr) 2002-01-30
EP1176264B1 EP1176264B1 (fr) 2005-06-01

Family

ID=19771665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010202555 Expired - Lifetime EP1176264B1 (fr) 2000-07-05 2001-07-04 Bande de drainage

Country Status (3)

Country Link
EP (1) EP1176264B1 (fr)
DE (1) DE60111136T2 (fr)
NL (1) NL1015617C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394332A1 (fr) * 2002-08-28 2004-03-03 Ubbink B.V. Elément de paroi
GB2590773A (en) * 2019-10-22 2021-07-07 Keyfix Ltd Cavity tray

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1007225A (en) * 1963-05-14 1965-10-13 Eric Reginald Shillabeer Wall cavity gutter or tray
GB1401267A (en) * 1971-05-07 1975-07-16 Stressline Patents Ltd Lintels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1007225A (en) * 1963-05-14 1965-10-13 Eric Reginald Shillabeer Wall cavity gutter or tray
GB1401267A (en) * 1971-05-07 1975-07-16 Stressline Patents Ltd Lintels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394332A1 (fr) * 2002-08-28 2004-03-03 Ubbink B.V. Elément de paroi
NL1021349C2 (nl) * 2002-08-28 2005-09-07 Ubbink Bv Muurelement.
GB2590773A (en) * 2019-10-22 2021-07-07 Keyfix Ltd Cavity tray

Also Published As

Publication number Publication date
EP1176264B1 (fr) 2005-06-01
DE60111136D1 (de) 2005-07-07
DE60111136T2 (de) 2006-05-11
NL1015617C2 (nl) 2002-01-08

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