EP1347109B1 - Cavity wall having dilatation joint - Google Patents
Cavity wall having dilatation joint Download PDFInfo
- Publication number
- EP1347109B1 EP1347109B1 EP20030075849 EP03075849A EP1347109B1 EP 1347109 B1 EP1347109 B1 EP 1347109B1 EP 20030075849 EP20030075849 EP 20030075849 EP 03075849 A EP03075849 A EP 03075849A EP 1347109 B1 EP1347109 B1 EP 1347109B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cavity wall
- screen
- folding lines
- joint
- insulation material
- 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
Links
- 239000012774 insulation material Substances 0.000 claims description 19
- 239000011449 brick Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011491 glass wool Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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
- E04B1/70—Drying or keeping dry, e.g. by air vents
- E04B1/7038—Evacuating water from cavity walls, e.g. by using weep holes
- E04B1/7046—Evacuating water from cavity walls, e.g. by using weep holes using trays
-
- 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
- E04B1/70—Drying or keeping dry, e.g. by air vents
Definitions
- the invention relates to a cavity wall having a dilatation joint.
- the invention furthermore relates to a provision for counteracting the penetration of damp/water into the cavity via the dilatation joint.
- a cavity wall as described in the preamble of claim 1 is known from FR-A-2.608.109.
- Dilatation joints have been arranged in the outer leaf of the cavity wall, in order to offer room to in particular horizontal shrinkage or stretch of the outer leaf.
- the minimal width of the joint has to be approximately 2 mm.
- the joint is sealed with a resilient putty.
- said putty In order for said putty to follow the deformations it has to a have a relatively considerable size, to which end the joint is made broader, usually as large as approximately 1 cm.
- the putty has to be arranged in an extra action, after the masonry is ready, by another workman, especially hired for arranging putty. He places a band of swelling material in the joint, as back support, and then injects the putty in the joint. This entails considerable costs.
- the strip-shaped screen can easily be placed by the bricklayers, during laying the bricks of the outer leaf.
- the joint itself can now be left as it is, may even be left entirely open, and will always have the same look from the outside.
- the open joint moreover ensures a transverse ventilation between cavity and the outside air, as a result of which too large differences in pressure over the outer leaf are counteracted.
- the joint can be kept narrower, just enough for the shrinkage and stretching movements and for stopping insects, that means in the order of magnitude of 2-4 mm.
- the width of the strip-shaped screen can remain limited to for instance one or several dm.
- the folding lines make transport in flat condition possible -improved when the profile portions themselves are flat as well- and make a simple adjustment to the local dimensions possible.
- Manageability and placeability can be improved when the screen forms a profile.
- the folding lines are equidistanced from each other.
- the adjustment is further improved when the screen can be cut through at the location of the folding lines, and can thus be cut to size.
- the folding lines are substantially horizontally oriented and the profile portions have a flat side facing the outer leaf. As a result water falling on the screen is discharged to the outer leaf.
- the screen is placed in a zig-zag shaped manner, having outer folding lines at the side of the outer leaf and inner folding lines at the side of the inner leaf.
- the outer folding lines may here support against the outer leaf.
- the screen can thus bridge the nett cavity space and will take the zig-zag shape suited to it, securing itself to some extent.
- the screen When the cavity has been provided with a layer of insulation material which is attached against the inner leaf, the screen can support against the layer of insulation material, in particular with the inner folding lines. At that location the screen may be attached on the layer of insulation material, particularly by means of nails, such as the so-called PN sandwich nails. To that end the screen may have been provided with prefabricated holes for attachment means, such as nails. Also without nails, the screen supporting against the layer of insulation material and against the outer leaf can form an extra means for locally keeping the layer of insulation material flat, and thus function as an extra spacer.
- the profile portions can form channel-shaped plates, for increased rigidity, for instance a sandwich plate having straight channel partitions or having a corrugated sheet in between.
- the profile portions may have been extruded as one unity, particularly from a synthetic material.
- the screen has been built up from a number of identical screen members, that have been arranged one above the other, particularly with an overlap.
- the screen members may have a length or height in the order of magnitude of 1 m. This has the further advantage that already at a certain height of masonry a part of the screen can be placed, without the screen extending upwards from the work with a large free length.
- the dilatation joint may be situated in a straight portion of the outer leaf.
- the joint is situated in or near a corner the screen can advantageously be formed or deformed in accordance with said corner.
- the invention provides a strip-shaped screen suitable and intended for a cavity wall according to the invention.
- the invention provides a method for utilising the strip-shaped screen according to the invention in a cavity wall.
- the strip-shaped screen 1 in figure 1 has been made of synthetic material and comprises a number of strips 2, that are connected to each other by means of folding lines 3 and 4.
- the strip-shaped screen 1 has been obtained from larger plates of sandwich panels, having (see detail figure 1A) a lowermost panel 5, an uppermost panel 6, and longitudinal partitions 7 in between, which between them define channels 8.
- Said plate material is resistant to bending to a reasonable extent. Grooves are pressed in the plate material, alternatingly at the one side and the other side, by means of rollers in the known manner, in order to form folding lines 3 and 4, so that as shown in figure 1, the strip can be folded zig-zag shaped. Holes 9 for attachment means have furthermore been made in the "valley" folding lines 3.
- the strip 1 has a width of approximately 20 cm.
- the distance between the folding lines may here be approximately 10 cm.
- the length of the strip, in unfolded condition may be in the order of magnitude of 1 m to 1.50 m, for instance 1.30 m.
- the strip 1 is lightweight, easy to fold and place. Said placing for instance takes place as shown in figure 2, wherein a cavity wall 10 during its building is shown.
- the cavity wall 10 has an inner leaf 11 and an outer leaf 12, and in between them a cavity 14.
- layer of insulation material 13 for instance glass wool plates or glass wool blankets, or PS foam, rock wool, or other insulation material, has been placed against the inner leaf 11.
- a setting lath 19 has been placed, having a thickness of some millimetres.
- a strip-shaped screen 1 according to the invention has been placed in the space 18 left over of the cavity 14, between the bricks 15 of the outer leaf 12 and the layer of insulation material 13, approximately for half its width.
- FIG 2 the other half is still visible.
- the strip-shaped screen 1 can be slid in in a somewhat stretched condition, and after that be let go of, after which the strip-shaped screen will give way a little due to gravity, until the folding lines 3 and 4 contact the layer of insulation material 13 and the inner surface of the outer leaf 12, respectively.
- suitable nails such as so-called PN nails, can be inserted through the holes 9 and into the layer of insulation material 13, in order to secure the level of the screen 1. This only needs to be done at the location of some of the folding lines 3.
- the outer leaf can be built at the lower side, and after that the setting lath 19 can be removed.
- the joint 16 between adjacent bricks 15 and the outer leaf 12 can here be given a small thickness d of for instance 3 mm.
- d the strip-shaped screen 1 each time provides a dewatering surface because of the strips 2, towards the outer leaf 12, the water being discharged in the surface of the outer leaf 12 as a result of the support at the location of the folding lines 4.
- FIG 5 a situation is shown in which a dilatation joint 30 is situated in or near a corner in the cavity wall 10.
- the strip-shaped screen 31 according to the invention used here also has a kind of zig-zag shape, but has been folded here in horizontal direction into a strip that is also angular in horizontal cross-section, and as it were forms a part of a bellows, having inner folding lines 32 and outer folding lines 33, in between which strips 34, inclining to the inside, and strips 35, inclining to the outside have been formed.
- the strip-shaped screens according to the invention can be placed by the bricklayer, during bricklaying activities. It is not necessary that after completion of the bricklaying activities a workman with another expertise performs activities on the dilatation joints, such as the injection of putty.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Finishing Walls (AREA)
- Building Environments (AREA)
Description
- The invention relates to a cavity wall having a dilatation joint. The invention furthermore relates to a provision for counteracting the penetration of damp/water into the cavity via the dilatation joint.
- A cavity wall as described in the preamble of
claim 1 is known from FR-A-2.608.109. - Dilatation joints have been arranged in the outer leaf of the cavity wall, in order to offer room to in particular horizontal shrinkage or stretch of the outer leaf. The minimal width of the joint has to be approximately 2 mm. In order to prevent precipitation passing through the joint and ending up in the cavity, against a layer of insulation material, such as glass wool plates, placed in there, the joint is sealed with a resilient putty. In order for said putty to follow the deformations it has to a have a relatively considerable size, to which end the joint is made broader, usually as large as approximately 1 cm.
- Particularly when the joint faces the south, particularly the south-west, the adhesion of putty and masonry considerably deteriorates in the course of time, as a result of which the putty comes loose and ends up hanging outside the joint. This can already happen within 10 years. Moreover the putty may discolour and no longer suit the colour of the masonry and/or give the wall a dirty look. For this reason it is necessary to replace the putty, however, one often fails to do so in view of the costs or because it is inconvenient.
- It is furthermore disadvantageous that the putty has to be arranged in an extra action, after the masonry is ready, by another workman, especially hired for arranging putty. He places a band of swelling material in the joint, as back support, and then injects the putty in the joint. This entails considerable costs.
- It is an object of the invention to improve on this.
- From one aspect the invention to that end provides a cavity wall as described in
claim 1. - The strip-shaped screen can easily be placed by the bricklayers, during laying the bricks of the outer leaf. The joint itself can now be left as it is, may even be left entirely open, and will always have the same look from the outside. The open joint moreover ensures a transverse ventilation between cavity and the outside air, as a result of which too large differences in pressure over the outer leaf are counteracted. The joint can be kept narrower, just enough for the shrinkage and stretching movements and for stopping insects, that means in the order of magnitude of 2-4 mm. The width of the strip-shaped screen can remain limited to for instance one or several dm. The folding lines make transport in flat condition possible -improved when the profile portions themselves are flat as well- and make a simple adjustment to the local dimensions possible.
- Manageability and placeability can be improved when the screen forms a profile.
- It is preferred here that the folding lines are equidistanced from each other.
- The adjustment is further improved when the screen can be cut through at the location of the folding lines, and can thus be cut to size.
- Preferably the folding lines are substantially horizontally oriented and the profile portions have a flat side facing the outer leaf. As a result water falling on the screen is discharged to the outer leaf.
- Preferably the screen is placed in a zig-zag shaped manner, having outer folding lines at the side of the outer leaf and inner folding lines at the side of the inner leaf. The outer folding lines may here support against the outer leaf. The screen can thus bridge the nett cavity space and will take the zig-zag shape suited to it, securing itself to some extent.
- When the cavity has been provided with a layer of insulation material which is attached against the inner leaf, the screen can support against the layer of insulation material, in particular with the inner folding lines. At that location the screen may be attached on the layer of insulation material, particularly by means of nails, such as the so-called PN sandwich nails. To that end the screen may have been provided with prefabricated holes for attachment means, such as nails. Also without nails, the screen supporting against the layer of insulation material and against the outer leaf can form an extra means for locally keeping the layer of insulation material flat, and thus function as an extra spacer.
- The profile portions can form channel-shaped plates, for increased rigidity, for instance a sandwich plate having straight channel partitions or having a corrugated sheet in between. The profile portions may have been extruded as one unity, particularly from a synthetic material.
- For increasing easy handling and adjustment to the local dimensions it is preferred that the screen has been built up from a number of identical screen members, that have been arranged one above the other, particularly with an overlap. The screen members may have a length or height in the order of magnitude of 1 m. This has the further advantage that already at a certain height of masonry a part of the screen can be placed, without the screen extending upwards from the work with a large free length.
- The dilatation joint may be situated in a straight portion of the outer leaf. In case the joint is situated in or near a corner the screen can advantageously be formed or deformed in accordance with said corner.
- From another aspect the invention provides a strip-shaped screen suitable and intended for a cavity wall according to the invention.
- From a further aspect the invention provides a method for utilising the strip-shaped screen according to the invention in a cavity wall.
- The invention will be elucidated on the basis of an exemplary embodiment shown in the attached drawings, in which:
- Figure 1 shows an exemplary embodiment of a strip-shaped screen according to the invention, in an already zig-zag shaped folded condition, with a corner detail thereof according to figure 1A;
- Figure 2 shows the strip-shaped screen according to figure 1, after placing, during laying the bricks of the outer leaf of a cavity wall;
- Figure 3 shows a horizontal cross-section of a completed cavity wall, wherein the strip-shaped screen of figure 1 has been accommodated;
- Figure 4 shows a vertical cross-section according to arrow IV in figure 3; and
- Figure 5 shows an alternative screen arrangement according to the invention, at the location of a corner in the cavity wall.
-
- The strip-
shaped screen 1 in figure 1 has been made of synthetic material and comprises a number ofstrips 2, that are connected to each other by means offolding lines shaped screen 1 has been obtained from larger plates of sandwich panels, having (see detail figure 1A) alowermost panel 5, anuppermost panel 6, and longitudinal partitions 7 in between, which between them definechannels 8. Said plate material is resistant to bending to a reasonable extent. Grooves are pressed in the plate material, alternatingly at the one side and the other side, by means of rollers in the known manner, in order to formfolding lines Holes 9 for attachment means have furthermore been made in the "valley"folding lines 3. - The
strip 1 has a width of approximately 20 cm. The distance between the folding lines may here be approximately 10 cm. The length of the strip, in unfolded condition, may be in the order of magnitude of 1 m to 1.50 m, for instance 1.30 m. - The
strip 1 is lightweight, easy to fold and place. Said placing for instance takes place as shown in figure 2, wherein acavity wall 10 during its building is shown. Thecavity wall 10 has aninner leaf 11 and anouter leaf 12, and in between them acavity 14. In thecavity 14 layer ofinsulation material 13, for instance glass wool plates or glass wool blankets, or PS foam, rock wool, or other insulation material, has been placed against theinner leaf 11. Against the joint side of theouter leaf 12 that has already been built up, asetting lath 19 has been placed, having a thickness of some millimetres. Subsequently a strip-shaped screen 1 according to the invention has been placed in thespace 18 left over of thecavity 14, between thebricks 15 of theouter leaf 12 and the layer ofinsulation material 13, approximately for half its width. In figure 2 the other half is still visible. The strip-shaped screen 1 can be slid in in a somewhat stretched condition, and after that be let go of, after which the strip-shaped screen will give way a little due to gravity, until thefolding lines insulation material 13 and the inner surface of theouter leaf 12, respectively. Subsequently suitable nails, such as so-called PN nails, can be inserted through theholes 9 and into the layer ofinsulation material 13, in order to secure the level of thescreen 1. This only needs to be done at the location of some of the folding lines 3. - Subsequently the outer leaf can be built at the lower side, and after that the setting
lath 19 can be removed. - The situation shown in figure 3 is then achieved, in which it can be seen that the strip-shaped
screen 1 has been fitted between the layer ofinsulation material 13 and theouter leaf 12. It does not matter here how big the distance is between insulation material and outer leaf, because due to the zig-zag shape and the folding lines a situation as shown in figure 3, in which both folding lines are supported, can at all times be achieved. - The joint 16 between
adjacent bricks 15 and theouter leaf 12 can here be given a small thickness d of forinstance 3 mm. As can be seen in figure 4 the strip-shapedscreen 1 each time provides a dewatering surface because of thestrips 2, towards theouter leaf 12, the water being discharged in the surface of theouter leaf 12 as a result of the support at the location of the folding lines 4. - In figure 4 it is shown that in vertical direction
consecutive screens 1 can be brought in overlap with each other, wherein twostrips 2 of a top screen are laid over the lowermost two strips of a bottom screen that has already been secured, after which the top screen is secured with the said PN nails, at the location ofbottom folding line 3 of said top screen. - In figure 5 a situation is shown in which a dilatation joint 30 is situated in or near a corner in the
cavity wall 10. The strip-shapedscreen 31 according to the invention used here also has a kind of zig-zag shape, but has been folded here in horizontal direction into a strip that is also angular in horizontal cross-section, and as it were forms a part of a bellows, havinginner folding lines 32 andouter folding lines 33, in between which strips 34, inclining to the inside, and strips 35, inclining to the outside have been formed. - The same bellows construction, but then not angularly folded, can also be used at the location of the earlier discussed dilatation joint situated in a straight cavity wall, as schematically shown in figure 5 by 31'.
- The strip-shaped screens according to the invention can be placed by the bricklayer, during bricklaying activities. It is not necessary that after completion of the bricklaying activities a workman with another expertise performs activities on the dilatation joints, such as the injection of putty.
Claims (19)
- Cavity wall (10) having an inner leaf (11), an outer leaf (12) and a cavity (14) situated in between them, wherein a dilatation joint (16) is present in the outer leaf (12), wherein in the cavity (14), at the location of the dilatation joint (16), a strip-shaped screen (1) has been arranged extending over the height of the joint (16), characterized in that the screen (1) comprises a number of strips (2), that are connected to each other by means of folding lines (3, 4).
- Cavity wall (10) according to claim 1, wherein the folding lines (3, 4) extend in a horizontal orientation.
- Cavity wall (10) according to claim 1 or 2, wherein the folding lines (3, 4) are equidistanced from each other.
- Cavity wall (10) according to any one of the preceding claims, wherein the screen (1) can be cut through at the location of the folding lines (3, 4).
- Cavity wall (10) according to any one of the preceding claims, wherein the screen (1) forms a profile, wherein between the folding lines (3, 4) the strips are provided in the form of flat profile portions (2).
- Cavity wall (10) according to claim 5, wherein the profile portions (2) have a flat side facing the outer leaf (12).
- Cavity wall (10) according to any one of the preceding claims, wherein the screen (1) is placed in a zig-zag shaped manner, having outer folding lines (4) at the side of the outer leaf (12) and inner folding lines (3) at the side of the inner leaf (11), wherein preferably the outer folding lines (4) support against the outer leaf (12).
- Cavity wall (10) according to any one of the preceding claims, wherein the cavity (14) has been provided with a layer of insulation material (13) which is attached against the inner leaf (11), wherein the screen (1) supports against the layer of insulation material (13).
- Cavity wall (10) according to claims 7 and 8, wherein the inner folding lines (3) support against the layer of insulation material (13).
- Cavity wall (10) according to claim 8 or 9, wherein the screen (1) has been attached on the layer of insulation material (13), particularly has been attached on the layer of insulation material (13) at the location of the inner folding lines (3), wherein preferably the screen (1) has been attached on the layer of insulation material (13) by means of nails (20).
- Cavity wall (10) according to claim 10, wherein the screen (1) has been provided with prefabricated holes (9) for attachment means, such as nails (20).
- Cavity wall (10) according to claim 5 or 6, wherein the profile portions (2) form channel-shaped plates.
- Cavity wall (10) according to claim 5 or 6, wherein the profile portions (2) have been extruded as one unity.
- Cavity wall (10) according to any one of the preceding claims, wherein the strip-shaped screen (1) has a horizontal width of one or several dm.
- Cavity wall (10) according to any one of the preceding claims, wherein the screen (1) has been built up from a number of identical screen members (1), that have been arranged one above the other, particularly with an overlap, wherein preferably the screen members (1) have a length or height in the order of magnitude of 1 m.
- Cavity wall (10) according to any one of the preceding claims, wherein the dilatation joint (16) is entirely open.
- Cavity wall (10) according to any one of the preceding claims, wherein the dilatation joint (16) has a width of more than 2 mm and less than 4 mm.
- Cavity wall (10) according to any one of the preceding claims, wherein the joint (16) is situated in a straight portion of the outer leaf (12).
- Cavity wall (10) according to any one of the claims 1-15, wherein the joint (16) is situated in or near a corner in the outer leaf (12), and has been turned.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1020220 | 2002-03-21 | ||
NL1020220A NL1020220C2 (en) | 2002-03-21 | 2002-03-21 | Cavity wall with expansion joint. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1347109A2 EP1347109A2 (en) | 2003-09-24 |
EP1347109A3 EP1347109A3 (en) | 2004-02-04 |
EP1347109B1 true EP1347109B1 (en) | 2005-04-27 |
Family
ID=27786079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030075849 Expired - Lifetime EP1347109B1 (en) | 2002-03-21 | 2003-03-21 | Cavity wall having dilatation joint |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1347109B1 (en) |
DE (1) | DE60300554T2 (en) |
NL (1) | NL1020220C2 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3621553A (en) * | 1969-11-04 | 1971-11-23 | Raymond J Lafeber | Expansion joint retaining means |
FR2608189B1 (en) * | 1986-12-15 | 1989-03-31 | Jbl Ets | PROCESS FOR PRODUCING A WALL FILLED WITH METAL PROFILED ELEMENTS AND CONCRETE SLABS, STRONGLY HOLDED BY TIGHTENING SCREWS |
US4841687A (en) * | 1988-08-04 | 1989-06-27 | Michael Navetta | Moisture deflector flashing strip for a building wall assembly |
FR2716910A1 (en) * | 1994-02-28 | 1995-09-08 | Sanchez Luis | Watertight expansion seal for expansion joints in buildings |
DE29716477U1 (en) * | 1997-09-13 | 1999-01-21 | Gebrüder Jaeger GmbH & Co, 42369 Wuppertal | Sealing tape |
-
2002
- 2002-03-21 NL NL1020220A patent/NL1020220C2/en not_active IP Right Cessation
-
2003
- 2003-03-21 DE DE2003600554 patent/DE60300554T2/en not_active Expired - Fee Related
- 2003-03-21 EP EP20030075849 patent/EP1347109B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE60300554D1 (en) | 2005-06-02 |
DE60300554T2 (en) | 2006-04-27 |
EP1347109A2 (en) | 2003-09-24 |
NL1020220C2 (en) | 2004-02-10 |
NL1020220A1 (en) | 2003-09-23 |
EP1347109A3 (en) | 2004-02-04 |
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