GB2341198A - Window frame including cavity closures, and preferably including a protective element, for installation into a part built cavity wall - Google Patents

Window frame including cavity closures, and preferably including a protective element, for installation into a part built cavity wall Download PDF

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Publication number
GB2341198A
GB2341198A GB9920740A GB9920740A GB2341198A GB 2341198 A GB2341198 A GB 2341198A GB 9920740 A GB9920740 A GB 9920740A GB 9920740 A GB9920740 A GB 9920740A GB 2341198 A GB2341198 A GB 2341198A
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GB
United Kingdom
Prior art keywords
frame
wall
building
cavity
installing
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
GB9920740A
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GB2341198B (en
GB9920740D0 (en
Inventor
John Derek Mumford
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.)
Mumford & Wood Ltd
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Mumford & Wood Ltd
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Filing date
Publication date
Application filed by Mumford & Wood Ltd filed Critical Mumford & Wood Ltd
Priority to GB9920740A priority Critical patent/GB2341198B/en
Publication of GB9920740D0 publication Critical patent/GB9920740D0/en
Publication of GB2341198A publication Critical patent/GB2341198A/en
Application granted granted Critical
Publication of GB2341198B publication Critical patent/GB2341198B/en
Anticipated expiration legal-status Critical
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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/24Safety or protective measures preventing damage to building parts or finishing work during construction
    • E04G21/30Safety or protective measures preventing damage to building parts or finishing work during construction against mechanical damage or dirt, e.g. guard covers of stairs
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/003Cavity wall closers; Fastening door or window frames in cavity walls

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Door And Window Frames Mounted To Openings (AREA)

Abstract

A window frame (1), for installation into the part-built cavity wall (30, 31) of a building, has a cavity closure (8) along at least one jamb. Preferably the frame comprises two jambs (3, 4 figure 1) and a cill (2), which incorporate cavity closures (8), and a head piece (5 figure 1). The frame is preferably a sash window frame and may include removable staff and parting beading (9, 10 figure 3). The frame may also provided with a plastic removable protective element (11), capable of protecting the frame (1) during building work, which preferably comprises a rectangular-section portion (12), which extends through the frame (1), and flanges to protect the various parts of the frame. A method of installing the frame (1) into a building is described, whereby the wall (30, 31) is built to a first level, the frame is positioned in the wall and the remainder of the wall is constructed upwardly along the sides of the frame.

Description

2341198 Window Frame Description 'Me present invention relates to a window
frame and a method of building a wall including such a window fi-ame.
The conventional method of building a cavity wall including a window requires the use of temporary timber fi-ames or fi-ames made of cavity closure profiles to define the window opening during building. 'Me opening is typically 10-20mm larger in width and height than the window that it is intended to accommodate. If timber fi-aaing is used, this must be knocked out when the brick- and/or blockwork is complete. The window is installed into the opening left after the wall is complete.
This method has a number of disadvantages.
Firstly, builders not unusually leave openings of the wrong size for the windows specified by the architect.
Glazed windows are heavy and difficult to handle.
To fix the window, steel straps have to be fixed to the back of the window and then nailed or screwed to the fabric of the wall or the window must be screw fixed through the frame. After fixing, the gap between the window and the fabric of the wall must be filled with foam and mastic. This is unsightly and provides a point for the possible ingress of water.
'Me situation is particularly bad around the cill.
Since the window must be installed before plastering or rendering, the frame and/or glass of the window is liable to be damaged during the plastering or rendering process.
According to the present invention, diere is provided a window frame including a wall cavity closure along a jamb thereof. T!his solves the problem of unsightly mastic joints. Furthermore, since the fi-ame can be installed as a wall is being built, it solves the problem of builders leaving openings of the wrong Case: 34482 Frames according to the present invention to be surrounded with cavity wallirig preferably have two iambs, a cill, a head and cavity closures along the jambs and the cill.
The or each cavity closure may comprises a cavity closure element attached to the frame. However, the cavity closures may be formed integrally with the elements of the frame.
The present invention may be applied to sash windows and windows having wings.
A sash window frame according to the present invention preferably includes removable staff beading so that the sashes can be easily installed on-site.
In order to overcome the problem of damage to the frame, a removable protective element is preferably included. In the case of a frame having a single opening, the protective element preferably comprises an tubular member extending through the frame and flanges projecting from the tubular member so as to overly front and back faces of the jambs and cill of the frame and an upper surface of the cill of the frame. An alternative protective element comprises two side panels Pined at their bottom edges by a sloping base panel, the sloping panel having a hooked portion at its front end for receiving the front of the cill of the frame. The protective element may be formed from plastics resin material.
According to the present invention, there is provided a sash window including a sash window frame according to the present invention and first and second sashes.
According to the present invention, there is provided a protective element for use in producing a protected frame according to the present invention.
According to the present invention, there is provided a wall including a window fi-ame according to the present invention and a building including such a wall.
According to the present invention, there is provided a method of building a windowed cavity wall comprisingbuilding the wall to a first level; mounting a fi-ame, for example a sash window fi-ame, according to the present invention to the wall; and budding the wall further such that it extends upwards and the wall's cavity is closed by said cavity closure.
Preferably, a method according to the present invention comprises installing a lintel over the frame and installing sashes into the frame after installing the lintel.
If the wall IS plastered or rendered in the region of the frame, the plastering or rendering is carried out before sashes are installed in the fi-ame.
If the frume is a protected sash window fiww according to the present invention, the protective member is removed immediately before installing the sashes.
According to the present invention, the is provided a method of building a building including building a wall by a method according to the present invention.
Embodiments, of the present invention will now he described, by way of example, with reference to the accompanying drawings, in which: - Figure 1 shows a frame accord4 to the present invention; Figure 2 shows a protector for the fi-ame of Figure 1; Figure 3 is a vertical sectional view of the fi-ame of Figure 1 with the protector of Figure 2 installed, Figure 4 is a horizontal sectional view of the frame of Figure 1 with the protector of Figure 2 installed, Figure 5 shows the fi-ame of Figure 1 bwIt into a cavity wall; Figure 6 shows an alternative protector, and Figure 7 is a horizontal sectional view of another fi-ame according to the present invention.
Referring to Figure 1, a sash window frame 1 a=rding to the present invention comprises a cill 2, left and right jambs 3, 4 and a head 5. The 6me 1 is made from uPVC or wood. A first cavity closure 6 is screwed and glued to the underside of the cill 2 and second and third cavity closures 7, 8 are screwed and glued to the jambs 3, 4 respectively. Removable, press-fitted staff beading 9 and parting beading 10 (see Figure 3) are provided for retaining sashes in the frame.
Referring to Figures 2, 3 and 4, protective element 11 comprises a rectangular-section portion 12, the bottom of which slopes upwards from front to back. A first flange 13 projects upwards from the upper front edge of the rectangular-section portion 12 to cover the front of the head 5. Second and third flanges 14, 15 project from the front side edges of the rectangular-section portion 12 to cover the fronts of the jambs 3, 4. A fourth flange 16 slopes down from the bottom front edge of the rectangular-section portion 12 covering the upper projecting face of the cill 2 and a fifth flange 17 depends from the end of the fourth flange 16 to cover the front face of the cill. A sixth flange 18 projects backwards from the bottom of the fifth flange 15. A seventh flange 19 projects upwards from the upper back edge of the rectangular-section portion 12 to cover the back of the head 5. Eighth and ninth flanges 20, 21 project from the rear side edges of the rectangular-section portion 12 to cover the backs of the jambs 3, 4. A tenth flange 22 projects down from the bottom rear edge of the rectangular-section portion 12 to cover the back of the cill 2.
Ihe protector 11 is formed from senii-rigid plastic sheeting During assembly of the frame 1, the protector 11 is installed by shding the rectangularsection portion 12 between the jambs 3, 4 before the frame 1 is closecl.
An example of the use of the frame shown in Figure 1 will now be described with reference to Figure 5.
At the budding site, a bricklayer builds a brick outer wall 30 and a block inner wall 31 of a cavity wall to the level at which the frame 1 is to be installed. The frame 1, protected by the protector 11, is then rested on the wall at the position designated by the architect. Ile cavity closure 6 under the cill 2 is received into the cavity of the wall which ensures that the frame 1 is correctly positioned relative to the thickness of the cavity wall. A length of timber may be leant against the top of the protected frame to help keep it in position until the wall has been built up.
Once the frame 1 is in position, the bricklayer proceeds to build brick and block courses on either side of the frame 1 untfi the top of the frame 1 is reached. As these courses are built, the cavity of the wall is dosed on each side of the fi-ame by the cavity closures 7, 8 on the jambs 3, 4. At intervals, the inner and outer walls 30, 31 are tied to the cavity closures 7, 8 on the jambs 3, 4 by ties 32 which are received in slots in the cavity dosures 7, 8.
When the inner and outer walls 30, 31 have reached the top of the frame on both sides, a lintel (not shown) is laid over the frame 1 and the wall is completed in the normal manner.
'The sashes of the window are inserted into the frame 1 after the wall has been completed, and after any plastering or rendering of the wall in the region of the frame 1. Before the sashes are inserted, the protector 11 must be carefully cut and removed and the staff and parting beads 9, 10 removed. After insertion of the front sash, the parting beads 10 are pushed back into place and then the rear sash is inserted and the staff beads 9 pushed back into place.
Referring to Figure 6 an alternative, less comprehensive protector 40 comprises two planar side members 41, 42 for protecting the inner faces of the jambs 3, 4, and a sloping base member 43 between the bottoms of the side members 41, 42. The sloping base member 43 projects forward to protect the top of the cill 2. A first flange 44 projects down from the end of the base member 43 to protect the front of the cill and a second flange 45 projects backwards from the bottom of the first flange 44. A third flange 46 projects downwards from the back edge of the base member 43 for protecting the back of the ciD 2.
T1he protector 40 can be held in place in the fi-ame 1 by sticky pads or a film binding and can be simply pulls from the frame 1 when it needs to he removed.
The protector 40 keeps the sash runs clear and prevents damage to the cW 2 which is particularly vulnerable.
Referring to Figure 7, another frame 50 according to the present invention has a channel 51 in one of the jambs 52 for receiving counterbalance weights 53. Ile channel 51 is dosed by the cavity closure 54 screwed and glued to the jamb 52.

Claims (22)

Claims
1. A window frame including a wall cavity closure along a jamb thereof.
2. A window frame according to claim 1, having two jambs, a cill, a head and cavity closures along the jambs and the cill.
3. A window frame according to claim 1 or 2, wherein the or each cavity closure comprises a cavity closure element attached to the frame.
4. A frame for a sash window according to claim 1, 2 or 3.
5. A frame according to claim 4, including removable staff and parting beading.
6. A frame according to claim 4 or 5, including a removable protective element.
7. A frame according to claim 6, wherein the protective element comprises an tubular member extending through the frame and flanges projecting from the tubular member so as to overly front and back faces of the jambs and cill of the frame and an upper surface of 20 the cill of the frame.
8. A frame according to claim 6, wherein the protective element comprises two side panels joined at their bottom edges by a sloping base panel, the sloping panel having a hooked portion at its front end for receiving the front of the cill of the frame.
9. A frame according to claim 6, 7 or 8, wherein the protective element is formed from plastics resin material.
10. A sash window including a frame according to claim 5 and first and second sashes.
11. A protective element for use in producing a frame according to any one of claims 6 to 9.
12. A wall including a window frame according to any one of claims 1 to 9.
13. A building including a wall according to claim 12.
14. A method of building a windowed cavity wall comprising:
building the wall to a first level; mounting a frame according to any one of claims 1 to the wall; and building the wall further such that it extends upwards and the wall's cavity is closed by said cavity closure.
15. A method according to claim 14, wherein the frame is a sash window frame.
16. A method according to claim 15, comprising installing a lintel over the frame and installing sashes into the fr-ame after installing the linteL
17. A method according to claim 16, including plastering or rendering the wall in the region of the frame before installing the sashes.
18. A method according to claim 16, wherein the frame is a frame according to claim 6 and the protective member is removed between installing the lintel and installing the sashes.
19. A method according to claim 17, wherein the frame is a frame according to claim 6 and the protective member is removed between said plastering or rendering and installing the sashes.
20. A method of building a building including building a wall by a method according to any one of claims 14 to 19.
21. A window frame substantially as hereinbefore described with reference to the accompanying drawings.
22. A method of building a wall substantially as hereinbefore described.
22. A method of building a wall substantially as hereinbefore described.
Amendments to the claims have been filed as fojiows Claims 1. A window frame including a wall cavity closure along a jamb thereof.
2. A window frame according to claim 1, having two jambs, a cill, a head and cavity closures along the jambs and the cill.
3. A window frame according to claim 1 or 2, wherein the or each cavity closure comprises a cavity closure element attached to the frame.
4. A frame for a sash window according to claim 1, 2 or 3.
5. A frame according to claim 4, including removable staff and parting beading.
6. A frame according to claim 4 or 5, including a removable protective element.
7. A frame according to claim 6, wherein the protective element comprises a tubular member c=ding through the frame and flanges projecting from the tubular member so as to overly front and back faces of the jambs and cill of the frame and an upper surface of 20 the cill of the frame.
8. A frame according to claim 6, wherein the protective element comprises two side panels joined at their bottom edges by a sloping base panel, the sloping panel having a hooked portion at its front end for receiving the front of the cill of the frame.
9. A frame according to claim 6, 7 or 8, wherein the protective element is formed from plastics resin material.
10. A sash window including a frame according to claim 5 and first and second sashes.
11. A self-supporting protective element for use as the protective element in a frame according to claim 7 or 8.
CI 12. A wall induding a window fi-ame according to any one of claims 1 to 9.
13. A building including a wall according to claim 12.
14. A method of building a windowed cavity wall comprising building the wall to a first level; mounting a fi-ame according to any one of claims 1 to 5 to the wall;- and budding the wall further such that it ortends upwards and the wall's cavity is dosed by said cavity closure.
15. A method according to claim 14, wherein the frame is a sash window fiame.
16. A method according to daim 15, comprising installing a lintel over the fi-ame and installing sashes into the frame after installing the lintel.
17. A method according to claim 16, including plastering or rendering the wall in the region of the fi-ame before installing the sashes.
18. A method according to claim 16, wherein the frame is a fi-ame according to claim 6 and the protective member is removed between installing the lintel and installing the sashes.
19. A method according to claim 17, wherein the fi-ame is a fi-ame according to claim 6 and the protective member is removed between said plasuring or rendering and installing the sashes.
20. A method of building a building induding building a wall by a method according to any one of claims 14 to 19.
21. A window frame substantially as hereinbefore, described with reference to the accompanying drawings.
GB9920740A 1999-09-02 1999-09-02 Window frame with a cavity wall closure Expired - Lifetime GB2341198B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9920740A GB2341198B (en) 1999-09-02 1999-09-02 Window frame with a cavity wall closure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9920740A GB2341198B (en) 1999-09-02 1999-09-02 Window frame with a cavity wall closure

Publications (3)

Publication Number Publication Date
GB9920740D0 GB9920740D0 (en) 1999-11-03
GB2341198A true GB2341198A (en) 2000-03-08
GB2341198B GB2341198B (en) 2000-08-09

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GB9920740A Expired - Lifetime GB2341198B (en) 1999-09-02 1999-09-02 Window frame with a cavity wall closure

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3078797A1 (en) 2015-04-08 2016-10-12 Magalie Munters Mounting frame defining an architectural opening during construction works and kit in parts comprising such mounting frame
ES2830054A1 (en) * 2020-08-06 2021-06-02 Cajaislant Grupo S L U Monobloc structure for building window and door openings (Machine-translation by Google Translate, not legally binding)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250530A (en) * 1990-10-17 1992-06-10 Kayplan Windows Ltd Fixing frames for windows, doors and the like
GB2298446A (en) * 1995-03-03 1996-09-04 Lb Plastics Ltd Frames for apertures in cavity walls
GB2308612A (en) * 1995-12-23 1997-07-02 Plus Plan Installing window in new building

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250530A (en) * 1990-10-17 1992-06-10 Kayplan Windows Ltd Fixing frames for windows, doors and the like
GB2298446A (en) * 1995-03-03 1996-09-04 Lb Plastics Ltd Frames for apertures in cavity walls
GB2308612A (en) * 1995-12-23 1997-07-02 Plus Plan Installing window in new building

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3078797A1 (en) 2015-04-08 2016-10-12 Magalie Munters Mounting frame defining an architectural opening during construction works and kit in parts comprising such mounting frame
WO2016162548A1 (en) 2015-04-08 2016-10-13 Magalie Munters Construction frame defining an architectural opening during construction works; kit in parts comprising such construction frame and use of such construction frame
ES2830054A1 (en) * 2020-08-06 2021-06-02 Cajaislant Grupo S L U Monobloc structure for building window and door openings (Machine-translation by Google Translate, not legally binding)

Also Published As

Publication number Publication date
GB2341198B (en) 2000-08-09
GB9920740D0 (en) 1999-11-03

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PE20 Patent expired after termination of 20 years

Expiry date: 20190901