GB2263288A - Cavity tray - Google Patents

Cavity tray Download PDF

Info

Publication number
GB2263288A
GB2263288A GB9200743A GB9200743A GB2263288A GB 2263288 A GB2263288 A GB 2263288A GB 9200743 A GB9200743 A GB 9200743A GB 9200743 A GB9200743 A GB 9200743A GB 2263288 A GB2263288 A GB 2263288A
Authority
GB
United Kingdom
Prior art keywords
tray
cavity
flap portion
base portion
wall
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
GB9200743A
Other versions
GB9200743D0 (en
GB2263288B (en
Inventor
Glen Robert Hayes
Colin Frederick Gibson
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.)
Glidevale Building and Products Ltd
Original Assignee
Glidevale Building and Products Ltd
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 Glidevale Building and Products Ltd filed Critical Glidevale Building and Products Ltd
Priority to GB9200743A priority Critical patent/GB2263288B/en
Publication of GB9200743D0 publication Critical patent/GB9200743D0/en
Publication of GB2263288A publication Critical patent/GB2263288A/en
Application granted granted Critical
Publication of GB2263288B publication Critical patent/GB2263288B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
    • E04D13/147—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs
    • E04D13/1478—Junctions to walls extending above the roof
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

A cavity tray for use in a cavity wall structure has a flap portion 2 attached to the base portion 1 at a location which in use is remote from the inner wall. A weakened region 3 is provided on the flap portion 2 along which the flap portion 2 is adapted to be folded such that it extends parallel to but spaced from the base portion 1. The flap portion 2 can be detached from the base portion 1 along the weakened region 3. A tab 6 is provided on the flap portion 2 to aid detachment of the flap portion 2 when the tray is in position in the cavity wall structure. The flap portion allows a flashing strip to be inserted into a pro-formed cavity (see Fig 2(b)) and attached to the tray, although alternatively, the strip can be attached before the tray is in the wall, either using the flap portion, or with it detached. <IMAGE>

Description

CAVITY TRAY This invention relates to a cavity tray.
In cavity wall structures comprising first and second spaced walls it is common for moisture to run down the outer of the two walls. It is desirable to take steps to prevent the moisture running down and it is known to provide a cavity tray to collect the moisture. It is also known to attach lead flashing to the front edge portion of the cavity tray. This is usually done by attaching the edge of the lead flashing to the underside of the cavity tray with tape and then stapling through the lead and the tray. Generally, the lead is attached to the cavity tray before the tray is included in the cavity wall structure, but it may also be positioned afterwards. In the latter case it is necessary to remove some of the mortar from beneath the front edge of the tray in order to form a groove to receive the lead. This must be done very carefully and is very time-consuming.
GB 2 164 368 discloses a cavity tray which is formed with a slot or "mouth" underneath the front edge portion of the tray to receive the lead. The edge of the lead is inserted into the "mouth" and stapled in place. However, this type of tray can only be used when the lead is to be attached to the tray before positioning the tray in the cavity wall structure. If the lead is not attached first, the "mouth" tends to become clogged with mortar during positioning of the tray in the wall structure and it is difficult to remove this mortar without damaging the mouth, as well as being time consuming.
The present invention seeks to provide a cavity tray which allows easy incorporation of the lead flashing either before or after the cavity tray is positioned in the cavity wall structure.
Thus, in a preferred embodiment, the invention provides a cavity tray for use in a cavity wall structure having first and second spaced walls defining a cavity therebetween, said tray comprising a base portion which is adapted to be embedded in the first wall and, in use, to extend from the first wall towards the second wall, the base portion being provided with a flap portion attached to the base portion at a location remote from the second wall and spaced from the edge of the base portion remote from the second wall, the flap portion being provided with a weakened region along which the flap portion may be detached from the base portion.
Preferably the flap portion is adapted to extend, in use, substantially parallel to but spaced from the base portion and to extend at least as far as said edge of the base portion remote from the second wall, Preferably, the weakened region is provided by a hinge and this allows the flap portion to be easily folded into position for use.
Advantageously, the flap portion is provided with a tab on the edge remote from the junction with the base portion.
This aids detachment of the flap portion from the base portion.
Desirably, the flap portion is provided with a plurality of ribs which extend between the flap portion and the base portion when in use, to maintain a minimum spacing between the flap portion and the base portion. However, the ribs are desirably collapsible.
The flap portion may be detached after the tray is in position in the wall structure by holding and pulling the tab. Detachment of the flap portion in this manner simultaneously clears away the mortar from beneath the base portion and therefore saves this having to be done as a separate job. The lead can then be inserted and attached in the conventional manner. When used in this way the cavity tray in accordance with the invention need not utilise a single piece of lead flashing associated with each tray but may utilise a single sheet of lead positioned beneath a number of adjacent cavity trays.
Alternatively, the flap portion may be detached and the lead attached before the tray is positioned within the wall structure in which case lead flashing is attached in a conventional manner, e.g. by means of a butyl tape interposed between the tray and an edge portion of the flashing and staples passing through tray, tape and flashing. As a further alternative, the flap portion need not be detached and lead flashing can be inserted into the "mouth" formed between the folded flap and the base portion. As the lead is inserted into the "mouth", the ribs are collapsed. The lead can then be fastened in a conventional manner, e.g. by staples, and the tray and lead inserted into the wall structure. In the latter two methods of use, however, a separate piece of lead flashing is required for attachment to each individual cavity tray.
Thus, the present invention provides a cavity tray which can be conveniently fitted with lead either before or after positioning in the cavity wall structure.
A preferred embodiment of the invention will now be described in detail with reference to the accompanying drawings in which: Figure 1 is a diagrammatic representation of part of a cavity tray according to the present invention; Figure 2 is a side view of the cavity tray of Figure 1 in position in a cavity wall structure a) before detachment of the flap portion and b) after detachment of the flap portion; Figure 3 is a diagrammatic representation of the cavity tray of Figure 1 with lead attached a) with the flap portion remaining in position and be with the flap portion detached; and Figure 4 is a perspective view of a preferred cavity tray in accordance with the invention.
Referring firstly to Figure 1, the cavity tray has a base portion 1 and a flap portion 2 which, when the tray is made eg by injection moulding, extends substantially at right angles to the base portion 1. The flap portion 2 is provided with an integrally moulded hinge 3 on a rib 3a projecting a small distance below the base portion 1. This hinge 3 also acts as a weakened region to allow detachment of the flap portion 2 from the base portion 1. The flap portion 2 may be folded along the hinge 3 so that it extends substantially parallel to the base portion 1 and extends at least as far as the front edge 4 of the base portion 1. The flap portion 2 is provided with ribs 5 which, together with rib 3a, ensure that a minimum spacing is maintained between the base portion 1 and the flap portion 2 when the flap portion is in its folded position (see Figure 2a).This minimum spacing is determined by the distance of the hinge 3 from the base portion 1, as determined by the height of the rib 3a.
A tab 6 is provided on the edge of the flap portion 2 remote from the base portion 1. This aids detachment of the flap portion 2 from the base portion 1. As shown in Figure 2, when the tray is in position in the cavity wall structure, the tab 6 extends beyond the front of the first of the spaced walls 7 of the cavity wall structure and can easily be gripped in order to pull out the flap portion 2.
A preferred cavity tray in accordance with the present invention is shown in Figure 4. Many specific details of this cavity tray, other than the flap portion, are described in our patent nos. EP 0 243 079 and GB 2 189 275.
However, it is to be understood that the features of the cavity tray of the present invention can be used in conjunction with any suitable cavity tray.
The cavity tray of the invention is injection moulded from plastics material and is therefore simple and cheap to manufacture. As mentioned above, the tray can be used in three different ways. Firstly, the cavity tray with the flap portion 2 in its folded position can be positioned in the cavity wall structure without lead flashing attached (Fig 2). The flap portion 2 can then easily be detached by pulling the tab 6 which extends beyond the wall structure. As the flap portion 2 is removed, any mortar which had been clogging the surrounding area is removed to leave a clear slot into which the lead flashing can be inserted and fastened in the usual manner (Fig 2b).
Secondly, the flap portion 2 can be removed by tearing along the weakened region provided at the hinge 3 and lead flashing positioned with its edge abutting the rib 3a (which thus acts as a locating means) attached to the base portion 1 of the tray in the usual manner before the tray is inserted into position in the cavity wall structure (Fig 3b). Thirdly, the lead flashing can be inserted into the mouth formed by the folded flap portion 2, to the extent permitted by engagement with the rib 3a, and fastened in place in the usual manner, again before the cavity tray is positioned in the cavity wall structure. As the lead is inserted into the mouth, the ribs 5 fold flat to make room for the lead (Fig 3a).
Thus, the present invention provides a versatile cavity tray which can be used in differing building situations thereby avoiding the need for having several different types of cavity tray. Manufacture of the tray is simple and cheap and the cavity tray is therefore very cost effective as well as providing significant advantages in use.

Claims (6)

1. A cavity tray for use in a cavity wall structure having first and second spaced walls defining a cavity therebetween, said tray comprising a base portion which is adapted to be embedded in the first wall and, in use, to extend from the first wall towards the second wall, the base portion being provided with a flap portion attached to the base portion at a location remote from the second wall and spaced from the edge of the base portion remote from the second wall, the flap portion also being provided with a weakened region along which the flap portion may be detached from the base portion.
2. A cavity tray according to Claim 1 wherein the flap portion is adapted to extend, in use, substantially parallel to but spaced from the base portion and to extend at least as far as said edge of the base portion remote from the second wall.
3. A cavity tray according to either one of Claims 1 and 2 wherein the weakened region is provided by a hinge.
4. A cavity tray according to any one of the preceding claims wherein the flap portion is provided with a tab on the edge remote from the junction with the base portion.
5. A cavity according to any one of the preceding claims wherein the flap portion is provided with a plurality of ribs which extend between the flap portion and the base portion when in use, to maintain a minimum spacing between the flap portion and the base portion.
6. A cavity tray substantially as described hereinbefore with reference to the accompanying drawings.
GB9200743A 1992-01-14 1992-01-14 Cavity tray Expired - Fee Related GB2263288B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9200743A GB2263288B (en) 1992-01-14 1992-01-14 Cavity tray

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9200743A GB2263288B (en) 1992-01-14 1992-01-14 Cavity tray

Publications (3)

Publication Number Publication Date
GB9200743D0 GB9200743D0 (en) 1992-03-11
GB2263288A true GB2263288A (en) 1993-07-21
GB2263288B GB2263288B (en) 1995-11-22

Family

ID=10708582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9200743A Expired - Fee Related GB2263288B (en) 1992-01-14 1992-01-14 Cavity tray

Country Status (1)

Country Link
GB (1) GB2263288B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2289704A (en) * 1994-05-24 1995-11-29 Ssf International Ltd Cavity tray and flashing
GB2290807A (en) * 1994-07-02 1996-01-10 Derek Charles Goddard Flashing retainer trim
GB2334978A (en) * 1998-03-07 1999-09-08 Manthorpe Building Products Li Cavity tray
WO2004007864A1 (en) * 2002-07-17 2004-01-22 Vkr Holding A/S Sheet flashing member and a flashing kit
GB2430943A (en) * 2005-09-21 2007-04-11 Viridian Concepts Ltd Roof penetrating structure for incorporating into a roof
GB2457647A (en) * 2007-12-01 2009-08-26 Thomas Reginald Cann Flood protection for buildings

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB410692A (en) *
GB2142359A (en) * 1983-06-28 1985-01-16 John Louis Shillabeer Cavity tray
GB2164368A (en) * 1984-09-14 1986-03-19 John Louis Shillabeer Building trays
GB2193516A (en) * 1986-08-06 1988-02-10 Timloc Building Products Ltd Damp proof strips or cavity trays with flashing attachment
GB2210648A (en) * 1987-10-02 1989-06-14 Z Led Extruded cavity tray

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB410692A (en) *
GB2142359A (en) * 1983-06-28 1985-01-16 John Louis Shillabeer Cavity tray
GB2164368A (en) * 1984-09-14 1986-03-19 John Louis Shillabeer Building trays
GB2193516A (en) * 1986-08-06 1988-02-10 Timloc Building Products Ltd Damp proof strips or cavity trays with flashing attachment
GB2210648A (en) * 1987-10-02 1989-06-14 Z Led Extruded cavity tray

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2289704A (en) * 1994-05-24 1995-11-29 Ssf International Ltd Cavity tray and flashing
GB2289704B (en) * 1994-05-24 1998-01-14 Ssf International Ltd Cavity tray
GB2290807A (en) * 1994-07-02 1996-01-10 Derek Charles Goddard Flashing retainer trim
GB2290807B (en) * 1994-07-02 1997-09-24 Derek Charles Goddard Flashing trim for buildings
GB2334978A (en) * 1998-03-07 1999-09-08 Manthorpe Building Products Li Cavity tray
GB2334978B (en) * 1998-03-07 2002-02-27 Manthorpe Building Products Lt Cavity tray
WO2004007864A1 (en) * 2002-07-17 2004-01-22 Vkr Holding A/S Sheet flashing member and a flashing kit
CN1665997B (en) * 2002-07-17 2010-10-06 Vkr控股公司 Sheet flashing member and a flashing kit
GB2430943A (en) * 2005-09-21 2007-04-11 Viridian Concepts Ltd Roof penetrating structure for incorporating into a roof
GB2430943B (en) * 2005-09-21 2010-08-04 Viridian Concepts Ltd Roof flashing connections comprising resilient member
GB2457647A (en) * 2007-12-01 2009-08-26 Thomas Reginald Cann Flood protection for buildings
GB2457647B (en) * 2007-12-01 2012-11-28 Thomas Reginald Cann Flood protection of buildings

Also Published As

Publication number Publication date
GB9200743D0 (en) 1992-03-11
GB2263288B (en) 1995-11-22

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110114