GB2395207A - A sleeve for a joist end - Google Patents

A sleeve for a joist end Download PDF

Info

Publication number
GB2395207A
GB2395207A GB0226844A GB0226844A GB2395207A GB 2395207 A GB2395207 A GB 2395207A GB 0226844 A GB0226844 A GB 0226844A GB 0226844 A GB0226844 A GB 0226844A GB 2395207 A GB2395207 A GB 2395207A
Authority
GB
United Kingdom
Prior art keywords
sleeve
joist
cavity
air
sleeve according
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
GB0226844A
Other versions
GB0226844D0 (en
GB2395207B (en
Inventor
Philip Hancock
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.)
Polypipe Building Products Ltd
Original Assignee
Polypipe Building 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 Polypipe Building Products Ltd filed Critical Polypipe Building Products Ltd
Priority to GB0226844A priority Critical patent/GB2395207B/en
Publication of GB0226844D0 publication Critical patent/GB0226844D0/en
Publication of GB2395207A publication Critical patent/GB2395207A/en
Application granted granted Critical
Publication of GB2395207B publication Critical patent/GB2395207B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/12—Load-carrying floor structures formed substantially of prefabricated units with wooden beams
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • 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
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E04B1/2612—Joist hangers

Landscapes

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

Abstract

A joist end sleeve <B>1</B> for siting a joist end <B>2</B> between blocks in a blockwork wall comprises means to prevent air flow from between the sleeve <B>1</B> and a joist end <B>2</B> fitted therein into a cavity beyond the end of the joist <B>2</B>. This cavity may be a cavity between the skins of a cavity wall. Air flow from between the sleeve <B>1</B> and joist end <B>2</B> into the cavity may be prevented by a closed end <B>4</B> of the sleeve 1 which may have a peripheral flange <B>6</B> for contacting a surface of the blockwork wall surrounding the sleeve <B>1</B>. Spacing means, such as protuberances or ribs <B>3</B>, may be provided on the sleeve <B>1</B> to allow air flow between the sleeve <B>1</B> and a joist end <B>2</B> fitted therein by maintaining a gap between the sleeve <B>1</B> and the joist end <B>2</B>. The protuberances or ribs <B>3</B> may define a plurality of discrete air spaces between the sleeve <B>1</B> and the joist end <B>2</B>. The protuberances or ribs <B>3</B> may be perforated. The spacing means may be integral with the sleeve <B>1</B> or may be provided separately for insertion between the sleeve <B>1</B> and joist end <B>2</B>. Also disclosed is a method of fixing a joist in a cavity wall using at least one such sleeve <B>1</B>.

Description

to A SLEEVE
The invention relates to a sleeve for use in siting a joist end and a method for using such a sleeve.
In the past, joists have been built into the actual Clockwork of walls for support thereby. This is a convenient and secure method of installing joists. A problem experienced with this construction method is that heat loss can occur from the building, where the joist protrudes into the wall, by air gaps caused by shrinkage and expansion. Where the joist is built into the inner skin of a cavity wall heat loss occurs into the cavity. This is obviously undesirable, and building regulations in many jurisdictions now prohibit the building of joists into Clockwork. To overcome this problem, and satisfy such regulations, joist hangers have been used.
These are built into the Clockwork and support the joists adjacent to the wall surface. Although they solve the problem of heat loss, they do not provide as stable a mounting for the joists, and also require the use of insulation around the end of the joist.
It is an object of the present invention to seek to mitigate problems such as these.
According to the invention there is provided a sleeve for siting a joist end between the blocks in a blockwork wall, the sleeve comprising means to prevent passage of air between the joist and the sleeve into the cavity.
Lo Thus the invention provides a device for securely fixing joists in place in Clockwork which does not allow heat loss.
The sleeve may include means to allow passage of air between the joist and the sleeve. This enhances the life span of the joist.
It is preferred that the air passage means is disposed to maintain a gap between the joist and an inner surface of the sleeve when the joist is in situ. The air passage means may comprise one or more protuberances on an inner surface of the sleeve, and the or each protuberance may be elongate. The or each protuberance may extend substantially around the entire inner surface of the sleeve.
There may be a plurality of protuberances, creating a plurality of discrete air spaces between the joist and the sleeve. The or each protuberance may also be perforated to allow movement of air between the air spaces.
The air passage means may be integrally formed with the sleeve, or may be separate from the sleeve, for installation on site therein prior to use.
According to a second aspect of the invention there is provided a method of fixing a joist in a wall, comprising disposing the or both joist ends in a sleeve as hereinabove defined.
The invention will further be described by way of example, with reference to the accompanying drawings in which,
o Figure 1 is a perspective view of a sleeve according to the invention; Figure 2 is a side view of the sleeve of Figure 1; Figure 3 is a view of one end of the sleeve of Figure 1, and Figure 4 is a view of the other end of the sleeve of Figure 1.
Referring to the drawings, there is illustrated a sleeve 1 for siting a joist end 2 between the blocks (not shown) of a wall, the sleeve including means 3 to allow passage of air between the joist end and the sleeve, and means 4 to prevent passage of air between the joist and the sleeve into the cavity. Referring in particular to Figures 2, 3 and 4, the sleeve 1 comprises a rectangular section tube, sized to accommodate a given joist end. The sleeve 1 is preferably made from metal such as steel. It has an open end and a closed end, the closed end being closed by a plate 4 attached thereto which forms the means for preventing passage of air. The plate 4 is larger in area than the closed end, such that a portion of it forms a peripheral flange 6 when it is attached to the end of the sleeve.
The inner surface 7 of the sleeve 1 is provided with means 3 to allow passage of air between the joist end and the sleeve, in the form of three elongate, protruding ribs, each of which extends along the inner surface of both sides of the sleeve, and the plate 4. The ribs 3 are equally spaced and define four equal air cavities 8 when the joist end is in situ.
To In use, the sleeve 1 is built into the Clockwork in a wall, with the flange 6 positioned on the outer side of the wall, flush with the blocks. The flange 6 helps maintain the sleeve 1 in position. A joist end 2 is then inserted into the sleeve 1 as shown in Figure 1. With the end of the joist 2 in position it can be seen that the ribs 3 serve to space the joist 2 from the inner surface of the sleeve 1, thus allowing air in between the two. The plate 4 prevents air which has entered between the joist and the sleeve from passing out of the sleeve into the cavity beyond.
As will be appreciated, the invention as described offers a number of advantages over existing joist fixing devices. It is labour saving onsite, and structurally more sound than joist hanging devices. It offers a combined answer to radon and air leakage, and enhances the lifespan of timber joists, with the ribs allowing for timber variation and movement through shrinkage and expansion. It also is suitable for future building improvements which rely on joist end supporting wells.

Claims (14)

To CLAIMS:
1. A sleeve for siting a joist end between the blocks in a blockwork wall, the sleeve comprising means to prevent passage of air between the joist and the sleeve into the cavity.
2. A sleeve according to claim 1, further including means to allow passage of air between the joist and the sleeve.
3. A sleeve according to claim 2, the air passage means being disposed to maintain a gap between the joist and an inner surface of the sleeve when the joist is in situ.
4. A sleeve according to claim 2 or claim 3, the air passage means comprising one or more protuberance on an inner surface of the sleeve.
5. A sleeve according to claim 4, the or each protuberance being elongate.
6. A sleeve according to claim 5, the or each protuberance extending substantially around the entire inner surface of the sleeve.
7. A sleeve according to any of claims 4 to 6, comprising a plurality of protuberances, the protuberances creating a plurality of discrete air spaces between the joist and the sleeve.
To
8. A sleeve according to any of claims 4 to 7, the or each protuberance being perforated.
9. A sleeve according to any preceding claim, the air passage means being integrally formed with the sleeve.
10. A sleeve according to any of claims 1 to 8, the air passage means being separate from the sleeve, for insertion therein prior to use.
11. A sleeve according to any preceding claim, the air passage prevention means comprising a closed end of the sleeve.
12. A sleeve according to claim 8, including a flange disposed about the closed end of the sleeve for contacting the outer surface of the blocks surrounding the sleeve.
13. A sleeve, substantially as hereinbefore described with reference to the accompanying drawings.
14. A method of fixing a joist in a cavity wall, comprising disposing the or both joist ends in a sleeve as claimed in any of claims 1 to 13.
GB0226844A 2002-11-18 2002-11-18 A sleeve Expired - Lifetime GB2395207B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0226844A GB2395207B (en) 2002-11-18 2002-11-18 A sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0226844A GB2395207B (en) 2002-11-18 2002-11-18 A sleeve

Publications (3)

Publication Number Publication Date
GB0226844D0 GB0226844D0 (en) 2002-12-24
GB2395207A true GB2395207A (en) 2004-05-19
GB2395207B GB2395207B (en) 2006-10-18

Family

ID=9948023

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0226844A Expired - Lifetime GB2395207B (en) 2002-11-18 2002-11-18 A sleeve

Country Status (1)

Country Link
GB (1) GB2395207B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2405881A (en) * 2003-09-05 2005-03-16 Manthorpe Building Products Lt Sealing end of joist
GB2406343A (en) * 2003-09-01 2005-03-30 Boise Building Products Ltd End cap for I - joist
ITAN20130246A1 (en) * 2013-12-24 2015-06-25 Andi Celaj TRAVEL-ENVELOPE GROUP AND CASING FOR BEAMS.
GB2619138A (en) * 2022-03-21 2023-11-29 Nicola Rudge Pauline A connector

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1564752A (en) * 1978-02-16 1980-04-16 Grindrod J Device for mounting timber joists and like members in brickwork
GB2130616A (en) * 1982-11-25 1984-06-06 Albert Symcox A damp proof cap for protecting floor joists
GB2201436A (en) * 1987-02-21 1988-09-01 Athol Phillip Harmer Joist protection in buildings,
GB2227260A (en) * 1988-09-02 1990-07-25 George Henry Molyneux Protective covering
GB2237041A (en) * 1990-03-07 1991-04-24 Robin Mark Sibley Protective sleeve
GB2255112A (en) * 1991-04-24 1992-10-28 Paul Mitchell Usher End protector for timber.
GB2261235A (en) * 1991-11-08 1993-05-12 John Louis Shillabeer Protecting joists from moisture

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1564752A (en) * 1978-02-16 1980-04-16 Grindrod J Device for mounting timber joists and like members in brickwork
GB2130616A (en) * 1982-11-25 1984-06-06 Albert Symcox A damp proof cap for protecting floor joists
GB2201436A (en) * 1987-02-21 1988-09-01 Athol Phillip Harmer Joist protection in buildings,
GB2227260A (en) * 1988-09-02 1990-07-25 George Henry Molyneux Protective covering
GB2237041A (en) * 1990-03-07 1991-04-24 Robin Mark Sibley Protective sleeve
GB2255112A (en) * 1991-04-24 1992-10-28 Paul Mitchell Usher End protector for timber.
GB2261235A (en) * 1991-11-08 1993-05-12 John Louis Shillabeer Protecting joists from moisture

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2406343A (en) * 2003-09-01 2005-03-30 Boise Building Products Ltd End cap for I - joist
GB2406343B (en) * 2003-09-01 2005-09-28 Boise Building Products Ltd A joist end-cap
GB2405881A (en) * 2003-09-05 2005-03-16 Manthorpe Building Products Lt Sealing end of joist
GB2405881B (en) * 2003-09-05 2008-04-16 Manthorpe Building Products Lt Sealing apparatus
ITAN20130246A1 (en) * 2013-12-24 2015-06-25 Andi Celaj TRAVEL-ENVELOPE GROUP AND CASING FOR BEAMS.
GB2619138A (en) * 2022-03-21 2023-11-29 Nicola Rudge Pauline A connector
GB2619138B (en) * 2022-03-21 2024-10-23 Nicola Rudge Pauline A connector

Also Published As

Publication number Publication date
GB0226844D0 (en) 2002-12-24
GB2395207B (en) 2006-10-18

Similar Documents

Publication Publication Date Title
US5984044A (en) Acoustical barrier wall with protective sleeves and method of assembly
US7812253B2 (en) Fire resistant barrier
US20070039258A1 (en) Adjustable attachment system
US6574932B2 (en) Embeddable air duct block and method
US20080098663A1 (en) Sound Attenuation Enclosure
GB2395207A (en) A sleeve for a joist end
US6041553A (en) Anchorage system for a horizontal door
GB2201184A (en) Composite self propping beam for use as a lintel when forming an opening in an existing wall
HK1080528A1 (en) Building construction components and methods
US5018327A (en) Prefabricated plate elements for the construction of insulating chambers
JP2005133360A (en) Dowel after putting type embedded hardware
KR102178265B1 (en) Seismic reinforcement device and method of existing concrete wall
RU2242570C1 (en) Wall structure
KR100641382B1 (en) Structure of outer insulate panel for joint house
KR200278576Y1 (en) sealing rail materials for a partition
AU2018241059B2 (en) Wall assembly fixing member
DE102020118831A1 (en) Fire protection seal
JP3848873B2 (en) Construction method of concrete wall of building and concrete formwork
KR200258522Y1 (en) The reclamation in ceiling type ceiling frame fixing material
EP0176233A1 (en) Pipe sleeve
KR980002614A (en) How to install indoor fire door
KR200237667Y1 (en) master mold
GB2604702A (en) Cavity fire barrier
RU34187U1 (en) Wall railing
AU2006200167A1 (en) Fire-proofing device

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20110217 AND 20110223

PE20 Patent expired after termination of 20 years

Expiry date: 20221117