GB2130616A - A damp proof cap for protecting floor joists - Google Patents
A damp proof cap for protecting floor joists Download PDFInfo
- Publication number
- GB2130616A GB2130616A GB08233648A GB8233648A GB2130616A GB 2130616 A GB2130616 A GB 2130616A GB 08233648 A GB08233648 A GB 08233648A GB 8233648 A GB8233648 A GB 8233648A GB 2130616 A GB2130616 A GB 2130616A
- Authority
- GB
- United Kingdom
- Prior art keywords
- damp
- cap
- wall
- joist
- ofthe
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 229920003266 Leaf® Polymers 0.000 claims description 2
- 239000011449 brick Substances 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000005923 long-lasting effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Floor Finish (AREA)
Abstract
A cap (4) for protecting the wall supported end of a floor joist (3) from damp brickwork comprises a sleeve, closed at one end and adapted to fit closely around the end of the joist. The sleeve is of sufficient length to extend, at least the full length of the end of the joist support in the wall, and comprises damp-proof material e.g. felt. The sleeve preferably extends along the joist beyond the sides of the cavity (2). <IMAGE>
Description
SPECIFICATION
A damp proof cap for protecting floor joists
The present invention relates to a cap for protecting the wall supported end of a floorjoistfrom damp brickwork, and for ensuring that the joist is mounted in the wall to the correct depth.
Wherefloorjoists are subjected to prolonged damp, they will eventually, begin to rot, which necessitates their replacement at great expense and inconveni ence. Natu rally, floor joists tend to be most prone to damp attheirwall supported ends as it is through the brickworkthat damp rises to reach them.
In order to protect floorjoists from the effects of damp it is known to treat them with liquid damp proofing chemicals, but this chemical treatment is ineffective if applied to joists which are already damp, and furthermore may take upto a month to cure and become fully effective.
It is an object ofthe present invention to provide a cap wherebythe wall supported end of a floor joist may be simply and effectively protected from damp, and which, fu rthermore, provides a measureofthe depth to which the end ofthejoist is mounted in the wall.
According to the present invention there is provided a cap for protecting the wall supported end of a floor joist from damp brickwork,the cap comprising a sleeve, closed at one end and adapted to fit closely around the end of the joist, the sleeve being of sufficient length to extend, at least the full length of the end ofthe joist support in thewall, and being comprised of damp-proof material.
Preferably the sleeve ofthe cap is of sufficient length to extend overthejoist beyond the edge ofthe wall supporting the same to provide a measure ofthe depth to which the end ofthejoist is supported in the wall.
Preferablythe cap is comprised of a blank of damp proof material which may be erected into a sleeve, one end of which is closed, adapted to fit closely around the end of a joist.
Preferably the damp proof material is damp proof felt.
An embodiment ofthe present invention will now be described, by way of example, with reference to the accompanying drawings, in which Fig. 1 shows an exploded view ofthe wall mounted end of a floor joist provided with a damp proof cap according to the present invention; and
Figs. 2 to 4 show a damp proof cap embodying the present invention in various stages of erection from a damp proof felt blank.
Referring to Fig. 1 ofthe accompanying drawings there is shown a brickwall 1 of a building having therein a number of cavities 2, in each or ofwhich the end of a floorjoist 3 is supported.
In order to protectthe brick wall 1 and the joists 3 from the effects of damp rising in the wall 1 a conventional damp proof course is normally provided in the wall belowthe level of the cavities 2. However, because damp proof courses can fail to operate effectively, and furthermore, to provide additional protection against damp for the joists 3, each joist 3 is provided with a cap 4 of damp proof material, which is fitted overthe wall mounted end of the joist 3 before it is mounted in its respective cavity 2. Each cap 4 comprises a sleeve, closed at one end, of for example, damp proof felt, which fits securely around the end of a joist 3.The length ofthe sleeve is such that when the end ofthejoist 3 is mounted in its respective cavity 2, in the wall 1, it extends around joist3 beyond the sides ofthe cavity 2. This ensures that no exposed part of the joist 3 is in contact with the wall 1 where it can be subject to damp, and in addition, provides a measure of the depth into the wall the end ofthe joist is inserted, as the amount of sleeve showing beyond the wall 1 can be measured. In fact, by always ensuring that the length of sleeve of each cap 4 is identical, it is possible, byensuring thatthe sleeve always extends a predetermined distance beyond the wall 1, to position the jOists 3 within their respective cavities 2 to a predetermined depth.
Referring nowto Figs. 2to 4 of the accompanying drawings there is shown a damp prooffelt blank 5 in various stages of erection into a cap embodying the present invention. The method of erection ofthe blank is self evident from the drawings and therefore it is considered unnecessaryto go into detail here. However, by way of explanation, panels 6, 7, 8, and 9 form the sleeve 10 ofthe cap, whilst panel 11 closes off one end ofthe sleeve 10. Tabs 12,13 and 14 ensure that the erected cap is rigid and tab 15, which may be secured in place, holds the erected cap together.
It will be appreciated that the cap according to the present invention may be comprised of any long lasting damp proof material.
It will be realised that the ends of joists fitted with the cap according to the present invention are also fully protected against moisture and dampness circulating in the cavity space of cavity walls, In this instance, condensation may occur on the inside walls of the cavity space and run down onto the joist ends, but these are fully protected by the cap according to the present invention.
The cap according to the present invention also provides protection from damp forjoists in cavity walls where debris has fallen down into the cavity space, above the level ofthe damp course and bridged the inner and outer leafs ofthe wall.
CLAIMS: (Filed on 23.11.83) 1. A captor protecting thewall supported end of a floorjoistfromdamp brickwork,thecapcomprisinga sleeve, closed at one end and adapted to fit closely around the end of the joist, the sleeve being of sufficient length to extend, at least the full length of the end ofthejoist support in the wall, and being comprised of damp-proof material.
2. A cap according to claim 1, wherein the sleeve of the cap is of sufficient length to extend overthe joist beyond the edge of the wall supporting the same to provide a measure of the depth to which the end ofthe
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (5)
1. A captor protecting thewall supported end of a floorjoistfromdamp brickwork,thecapcomprisinga sleeve, closed at one end and adapted to fit closely around the end of the joist, the sleeve being of sufficient length to extend, at least the full length of the end ofthejoist support in the wall, and being comprised of damp-proof material.
2. A cap according to claim 1, wherein the sleeve of the cap is of sufficient length to extend overthe joist beyond the edge of the wall supporting the same to provide a measure of the depth to which the end ofthe joist is supported in the wall.
3. A cap according to claim 1 or 2, wherein the cap is comprised of blank of damp proof material which may be erected into a sleeve, one end ofwhich is closed, adapted to fit closely around the end of a joist.
4. A cap according to any preceding claim wherein the damp proof material is water proof felt.
5. A cap for protecting the wall supported end of a floorjoistfrom damp brickwork substantially as hereinbefore described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08233648A GB2130616A (en) | 1982-11-25 | 1982-11-25 | A damp proof cap for protecting floor joists |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08233648A GB2130616A (en) | 1982-11-25 | 1982-11-25 | A damp proof cap for protecting floor joists |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2130616A true GB2130616A (en) | 1984-06-06 |
Family
ID=10534512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08233648A Withdrawn GB2130616A (en) | 1982-11-25 | 1982-11-25 | A damp proof cap for protecting floor joists |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2130616A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2231345A (en) * | 1988-09-20 | 1990-11-14 | Anthony Ellis | End covers for posts |
GB2261235A (en) * | 1991-11-08 | 1993-05-12 | John Louis Shillabeer | Protecting joists from moisture |
GB2304352A (en) * | 1996-12-02 | 1997-03-19 | Robin Mark Sibley | Protective sleeves for timber joists |
GB2392928A (en) * | 2002-09-14 | 2004-03-17 | Simpson Strong Tie Int Inc | Joist hanger |
GB2394234A (en) * | 2002-10-19 | 2004-04-21 | Ian Victor Vaughan | Cap for joist in blockwork wall |
GB2395207A (en) * | 2002-11-18 | 2004-05-19 | Polypipe Building Products Ltd | A sleeve for a joist end |
WO2008063998A1 (en) * | 2006-11-13 | 2008-05-29 | Outdoor Living (Isle Of Man) Ltd. | Joist end cap |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB525650A (en) * | 1939-02-24 | 1940-09-02 | James Dempster Keillor | Water and damp resisting devices for wood joists or the like |
GB1289140A (en) * | 1969-12-02 | 1972-09-13 | ||
GB1564752A (en) * | 1978-02-16 | 1980-04-16 | Grindrod J | Device for mounting timber joists and like members in brickwork |
-
1982
- 1982-11-25 GB GB08233648A patent/GB2130616A/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB525650A (en) * | 1939-02-24 | 1940-09-02 | James Dempster Keillor | Water and damp resisting devices for wood joists or the like |
GB1289140A (en) * | 1969-12-02 | 1972-09-13 | ||
GB1564752A (en) * | 1978-02-16 | 1980-04-16 | Grindrod J | Device for mounting timber joists and like members in brickwork |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2231345A (en) * | 1988-09-20 | 1990-11-14 | Anthony Ellis | End covers for posts |
GB2261235A (en) * | 1991-11-08 | 1993-05-12 | John Louis Shillabeer | Protecting joists from moisture |
GB2261235B (en) * | 1991-11-08 | 1995-07-19 | John Louis Shillabeer | Protecting joists from moisture |
GB2304352A (en) * | 1996-12-02 | 1997-03-19 | Robin Mark Sibley | Protective sleeves for timber joists |
GB2304352B (en) * | 1996-12-02 | 1997-07-30 | Robin Mark Sibley | A protective sleeve |
GB2392928A (en) * | 2002-09-14 | 2004-03-17 | Simpson Strong Tie Int Inc | Joist hanger |
GB2392928B (en) * | 2002-09-14 | 2005-11-23 | Simpson Strong Tie Int Inc | Joist hanger |
GB2394234A (en) * | 2002-10-19 | 2004-04-21 | Ian Victor Vaughan | Cap for joist in blockwork wall |
GB2394234B (en) * | 2002-10-19 | 2006-03-08 | Ian Victor Vaughan | Fitting joists to blockwork walls |
GB2395207A (en) * | 2002-11-18 | 2004-05-19 | Polypipe Building Products Ltd | A sleeve for a joist end |
GB2395207B (en) * | 2002-11-18 | 2006-10-18 | Polypipe Building Products Ltd | A sleeve |
WO2008063998A1 (en) * | 2006-11-13 | 2008-05-29 | Outdoor Living (Isle Of Man) Ltd. | Joist end cap |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |