GB2522903A

GB2522903A - A joint seal

Info

Publication number: GB2522903A
Application number: GB1402228.9A
Authority: GB
Inventors: Gerard Francis Robinson
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-10
Filing date: 2014-02-10
Publication date: 2015-08-12
Anticipated expiration: 2034-02-10
Also published as: GB201402228D0; GB2522903B

Abstract

A joint seal (10) comprises of a flexible strip (11) having an upper boundary (12) and a lower boundary (13) an inner face (14) and an outer face (15). The inner face (14) has an upper region (19) and a lower region (17). The outer face (15) has an upper region (18) and a lower region (16). A tape (33) extending longitudinally on the strip inside face (14) provides a means fixing the position of a backer material (80). The backer material engages and shutters the applied of a curing adhesive sealant 51. The backer material 80 is applied to the tape after the strip is installed on a wall, prior to installation of a shower tray or bath. Preferably the strip has means of longitudinal partitioning 95. A first installation method utilizes the single part, non- partitioned strip. A second installation method uses two parts from the strip when partitioned.

Description

A JOINT SEAL

The present invention relates to an up-stand joint seal adapted to provide an enhanced waterproof connection between two substrates such as the joint between a wall and adjacent shower tray or bath ledge or work surface.

Prior art relating to up-stand joint seals adapted to seal the joint between a shower tray substantially feature up-stand strip membranes with a high tack pressure sensitive butyl adhesive tape longitudinally applied to a lower portion of one side. During installation the adhesive strip is exposed and bonded to the shower tray perimeter side wall before installation of the tray against the intended shower wall.

Butyl adhesive based up-stand seals are promoted as being quicker and easier to install than traditional adhesive sealants. That type of promotion is aided by the fact that adhesive sealants can indeed be messy and time consuming to install. A sealant adhesive based up-stand seal designed to be easily installed with the necessary acoustic/adhesive sealant backer foam and installation flexibility would offer consumers a superior alternative product without the limitations associated with butyl based up-stand seals.

A problem with butyl based up-stand seals is that they are limited to installation during the period that the shower tray or bath is being installed and cannot be installed after the shower tray or bath has been fitted.

Another problem particular to up-stand seals that are reliant on butyl and other elastomeric materials as the primary means of strip construction and connection to shower trays or baths is that such adhesives can react aggressively to silicone sealants.

It is the object of this invention to limit or eliminate the aforementioned problems

associated with prior art up-stand seals.

According to the present invention there is provided a joint seal adapted to be installed as a component of a shower tray or bath sealing system, in the installed orientation between a shower tray or bath comprising of: a flexible longitudinal strip having a strip upper boundary and a strip lower boundary between which strip boundaries there extends a strip inner face facing the ledge and a strip outer face facing the wall which strip outer face has a strip outer face upper region and a strip outer face lower region and which strip inner face has a strip inner face upper region and a strip inner face lower region: a tape extending longitudinally on the strip comprising of a tape adhesive bed: characterized in that the joint seal provides a means to retrospectively engage and retain an adhesive sealant backer material on the strip inner face, after installation of the strip on the wall and before final installation of the shower tray or bath adjacently to the strip, to engage and shutter the lower boundary of a curing adhesive sealant retrospectively applied below the ledge into the joint formed between the installed shower tray perimeter side wall and the adjacent strip inner face.

Ideally, the adhesive sealant backer material is a foam backer material and said means of retrospectively engaging and retaining the adhesive sealant backer material to the strip inner face is through touch engagement with pressure sensitive tape adhesive bed extending longitudinally on the strip inner face.

Preferably, the tape further includes a releasable protective tape adhesive liner over the tape adhesive bed and which tape adhesive liner has an upper boundary and a lower boundary between which tape adhesive liner boundaries there extends a liner inner face facing the ledge and a liner outer face facing the wall to accommodate rolling the joint seal for transport.

Furthermore, the joint seal further provides a means of longitudinal partitioning to accommodate installation of the joint seal substantially or exclusively over a shower tray or bath ledge.

Ideally, said means of longitudinal partitioning of the joint seal is through the provision of at least one perforated tearing line or such material weakness in the strip.

Alternatively, a strip partitioning line is identifiable as a printed line to accommodate accurate partitioning the strip using a knife blade or scissors.

Alternatively, a strip partitioning line is identifiable as spatially engineered tape adhesive liner upper or lower boundary lines.

Ideally, partitioning of joint seal results in a longitudinal off-cut portion that before partitioning typically extends transversely between the cutting/tearing line and the strip lower boundary.

Advantageously, the longitudinal off-cut portion includes a tape or part thereof.

Preferably, the joint seal further provides a means to prevent adhesive sealant applied onto the ledge from engaging the adjacent wall.

Ideally, said means of preventing adhesive sealant applied onto the ledge engaging the adjacent wall is through the bonding of an off-cut portion to the wall through use of the attached pressure sensitive tape adhesive bed in location between the wall surface and the proposed interface of adhesive sealant.

Alternatively, said means of preventing adhesive sealant applied onto the ledge engaging the adjacent wall is through the relocation of releasable protective tape adhesive liner or unencumbered off-cut portion between the wall surface and the proposed interface of adhesive sealant.

Ideally, there extends on the strip inner face an adhesive bed and protective liner which is liner is removable after the wall adhesive is initially applied, as a means of raising the level of the initially applied wall adhesive lower boundary to a higher level to limit or prevent the effects of capillary action and provide a means of bonding a backer material to the strip through the exposed adhesive bed to accommodate join movement and while in roll format the and protective liner may act as a dual release liner that engages an adhesive bed on its outer face and a provisional fixing tape adhesive bed on its inner face.

Ideally, there extends on the strip outer face a provisional fixing tape adhesive bed and provisional fixing tape adhesive bed liner to provide a preliminarily means of part engagement of the strip with the wall in preparation for the subsequent application of a permanent adhesive bed to facilitate a permanent engagement of the opposing strip outer face or desired part thereof with the wall.

Ideally, tape adhesive liner, provisional fixing tape adhesive bed liner and the anti-capillary tape adhesive liner may typically be of a polyethylene or polypropylene material siliconized on one or both sides.

Ideally, the tape adhesive bed, provisional fixing tape adhesive bed and anti-capillary tape adhesive bed are typically hot melt transfer adhesives.

Ideally, the strip is a flexible polymeric material such as 100-300 micron polyethylene or polypropylene or a heavier polymer material.

Preferably, a means of tenacious engagement between the strip and adhering materials is achieved through surface etching and/or the application of a silicone film over part or whole strip surface.

Ideally, a means of tenacious engagement between the strip and adhering materials is achieved through one or more longitudinal regions of the strip being laminated with a rough fleece material.

Ideally, the joint seal acts in combination with a close celled backer material or the like that may be compressible and round or linier in section.

Ideally, the joint seal acts in combination with an adhesive sealant of the type that may be extruded uncured from a tube, applied as desired and thereafter cure as flexible sealant adhesive.

Advantageously, the joint seal dimensions are spatially engineered so that the height of the strip upper boundary on the wall after installation between a shower tray or bath and adjacent wall is substantially the same as the height of the strip upper boundary on the wall after installation of joint seal over a shower tray or bath ledge.

Ideally, the joint seal acts in combination with an adhesive sealant spatula of such width as to facilitate the identification of the strip upper boundary on the wall.

Ideally, the joint seal acts in combination with overlapping waterproof wall matting or a liquid applied waterproof membrane or a wall adhesive.

Ideally, an installation method is characterized in the engagement of a backer material onto the strip inner face, after installation of the strip on the wall, before final installation of the shower tray or bath and before application of adhesive sealant into the joint formed between a shower tray or bath perimeter side wall and adjacent strip inner face as disclosed herein with reference to the accompanying drawings.

Alternatively, an installation method is characterized in the partitioning of joint seal and thereafter the part employment of joint seal over a shower tray or bath ledge as disclosed herein with reference to the accompanying drawings.

Alternatively, an installation method is characterized in the partitioning of joint seal and thereafter the employment of an off-cut portion of joint seal over a shower tray or bath ledge as an adhesive sealant isolating means.

The invention will hereinafter be more particularly described with reference to the accompanying drawings, which show by way of example only, some embodiments of the seal according to the invention.

In the drawings: Figure 1 represents a perspective peel back view of the current invention in roll form detailing a tape extending on the strip inner face 14; Figure 2 represents a section view of Figure 1 un-wound and in an installed orientation between a shower tray or bath; Figure 3 represents a perspective peel back view of the current invention in roll form as disclosed in Figure 1 with an additional provisional fixing tape and anti capillary tape; Figure 4 represents a section view of Figure 3 un-wound and in a normal installed orientation between a shower tray or bath and adjacent wall; Figure 5 represents a section view of Figure 4 as would be the detail during installation between a shower tray or bath and adjacent wall; Figure 6 represents a section view of Figure 4 and 5 after installation between a shower tray or bath and adjacent wall; Figure 7 represents a section view of Figure 5 but detailing a first over ledge installation method wherein the strip has been partitioned and the strip off-cut discarded; Figure 8 represents a section view of Figure 7 after installation over a shower tray or bath ledge; Figure 9 represents a section view of the current invention detailing the commencement of a second over ledge installation method wherein the strip has been partitioned and the strip off-cut installed to isolate adhesive sealant on the ledge from the wall.

Figure 10 details the strip installed in the reverse orientation substantially over but also overlapping the off-cut portion; Figure 11 represents a section view of Figures 9 and 10 after installation over a shower tray or bath ledge; Referring to the drawings in detail: Figures 1 and 2 of the drawings disclose a joint seal 10 comprises of a flexible longitudinal strip 11 and tape 33. In Figure 1 the invention is provided in roll format for transport and in Figure 2 the invention is detailed a section drawing in its installed orientation between a shower tray or bath and adjacent wall.

The flexible longitudinal strip 11 has an upper boundary 12 and a lower boundary 13 between which boundaries there extends an inner face 14 facing a ledge 92 and an outer face 15 facing a wall 60. The strip outer face 15 has an upper region 18 and a lower region 16. The strip inner face 14 has an upper region 19 and a lower region 17.

The tape 33 extends longitudinally on the strip inside face lower region 17 and comprises of tape adhesive liner 34 and tape adhesive bed 35. The tape adhesive liner 34 has an upper boundary 36 and a lower boundary 37 between which tape adhesive liner boundaries there extends an inner face 39 facing the ledge 92 and an outer face 38 facing the wall 60.

There also extends longitudinally on stiip 11 at least one perforated line 95 or such a material weakness in the strip 11 that might accommodate tearing' as a means of partitioning the strip or reducing the strip height as might be required for over ledge installation.

Alternatively, partitioning line 95 might be identifiable as a printed line or as the tape adhesive liner upper boundary (36) line to accommodate blade alignment if preferred to partition strip (11) using a blade or scissors. It should be understood though not shown that the strip 11 width and perforated/printed partitioning line 95 location(s) may extend outside the tape adhesive liner lower boundary 37.

The component parts detailed in Figures 1 and 2 are identically presented in Figures 3 and 4. In addition, Figures 3 and 4 disclose provisional fixing tape 30 and anti-capillary tape 20.

Provisional fixing tape 30 extends longitudinally on the strip outside face 15 and comprises of provisional fixing tape adhesive bed liner 31 and provisional fixing tape adhesive bed 32. During installation between a shower tray or bath and adjacent wall, provisional fixing tape adhesive bed liner 31 is removed to allow the high tack pressure sensitive provisional fixing tape adhesive bed 32 provisionally engage the strip outer face to the wall as shown in Figures 6 and 7 prior to a permanent engagement later.

Multi-function anti-capillary tape 20 extends longitudinally on the strip inside face 14 and comprises of an anti-capillary tape adhesive liner 21 and an anti-capillary tape adhesive bed 22. The anti-capillary tape adhesive liner 21 has an upper boundary 23 and a lower boundary 24 between which liner boundaries there extends an inner face 25 facing the ledge 92 and an outer face 26 facing the wall 60.

During installation of the strip between a shower tray or bath and adjacent wall, after the initial application of wall adhesive 40, the anti-capillary tape adhesive liner 21 may be removed to realign the wall adhesive lower boundary with the anti-capillary tape adhesive liner upper boundary 23, thereafter the exposed anti-capillary tape adhesive bed 22 provides a means to engage backer material 81 with the strip inner face 14.

Though not shown, when the roll detailed in Figure 4 is reverse wound with strip outer face 15 facing the roll center (core), provisional fixing tape adhesive bed liner 31 may be omitted in favour of provisional fixing tape adhesive bed 32 engaging the anti-capillary tape adhesive liner inner face 25, to speed up installation Tape adhesive liner 34, provisional fixing tape adhesive bed liner 31 and the anti-capillary tape adhesive liner 21 may typically be of a polyethylene or polypropylene material siliconized on one or both sides. Tape adhesive bed 35, provisional fixing tape adhesive bed 32 and anti-capillary tape adhesive bed 22 are typically hot melt transfer adhesives.

Typically, the strip 11 is a 200-300 micron soft polyethylene or polypropylene type material but could be a heavier polymer material. Adhesive beds 22 and 32 are typically hot melt adhesives.

It should be understood though not presented in the drawings that the strip inner and outer faces 14 and 15 respectively may be enhanced to form tenacious adhesive bonds with sealant adhesives and mechanical bonds with cement based wall adhesives.

In respect of the use of sealant adhesives, such an adhesive bonding enhancement may be achieved through whole or part siliconization of plasma/corona etched surfaces of the strip 11. In respect of wall adhesives, such a mechanical bonding enhancement may be achieved through the provision of a rough non-woven fleece layer glued to strip 11.

Further material features generally disclosed in cross section Figures 5-10 are a wall 60, a wall covering 70 having an inner face 73 and outer face 72 and a wall covering bottom edge 71, a shower tray 90 having a ledge 92 and shower tray perimeter side wall 91.

Close celled backer foam 80 and 81 is waterproof, flexible and compressible. Wall adhesive 40 may be class 2 cement based and the adhesive sealant 50, 51, 52, 53 may be silicone based.

Figures Sand 6 relate to the installation of joint seal 10 between a shower tray or bath 90 and adjacent wall 60. Figures 7-11 relate to the installation of joint seal 10 over shower trays and bath ledges. I respect of simplifying the instructions for this dual purpose product, joint seal 10 is spatially engineered so that the height of the strip upper boundary 12 on the wall 60 after installation between a shower tray or bath 90 and adjacent wall 60, is substantially the same as the height of the strip upper boundary 12 on the wall 60 after installation over a shower tray or bath ledge 91.

This consistency in the installed height is advantageous in respect simplifying the installation information installers have to absorb. This product spatial engineering' provides a big advantage in that an adhesive sealant spatula is provided with the joint seal 10, whereby the instructions indicate a line should be drawn on the wall at a height above the ledge that is equal to the width of the spatula whether the joint seal 10 is being installed between a shower tray or bath 90 and wall 60 or over a shower tray or bath ledge 91. Consequentially, the installer does not need a measuring tape to install the joint seal 10.

All installations of joint seal 10 commence with marking the joint strip upper boundary 12 line on the walls so the joint seal can be aligned in the correct position above the ledge 92 before provisional attachment using the exposed provisional fixing tape adhesive bed 32.

Component parts detailed in Figures 3 and 4 are presented during the installation process in Figure 5 but wherein the removal of provisional fixing tape adhesive bed liner 31 facilitates bonding the strip outer face 15 to the wall before a permanent bonding of strip outer face upper region 18 to the wall with adhesive sealant 50.

The removal of and tape adhesive liner 34 facilitates the easy and accurate engagement of backer foam 80 to the strip inner face lower region 17 after installation of the strip 11 on the wall 60 and before final installation of the shower tray or bath 90 adjacently to the strip 11 as detailed in Figure 5. This innovative method eliminates the traditional slower and inaccurate method of having to retrospectively squeeze compressed backer foam 80 a specific depth into the joint between the shower tray or bath perimeter side wall 91 and opposing adjacent surface.

Figure 6 details the completed installation wherein, the shower tray or bath 90 is installed and its perimeter side wall 91 compresses the backer foam 80 which thereafter engages and shutters the lower boundary of curing adhesive sealant 51 applied into the joint between the installed shower tray (90) and the adjacent strip inner face lower region 17.

Wall adhesive 40 is applied over wall 60, the strip inner face 14 and anti-capillary tape adhesive liner 21 which liner thereafter is removed to simultaneously remove the attached wall adhesive 40 raising the position of the original wall adhesive lower boundary to new adhesive lower boundary 42, and expose an anti-capillary tape adhesive bed 22 onto which is (optionally) engaged backer foam 81 which backer foam upper surface 82 creates void 56 as means of preventing capillary action by way of forming an empty chamber through simple installation of the wall covering 70 or which void 56 could alternatively accommodate the application of an anti capillary sealant bridge 53 extending between the strip inner face 14 and adjacent wall covering outer face 72 during installation of the wall covering 70.

Where an anti-capillary void 56 is preferred to an adhesive sealant bridge 53, the backer foam 81 may be installed after the wall covering 70 is laid. To complete the installation the joint between the ledge 92 and wall covering bottom edge 71 is sealed with adhesive sealant 52. In Figure 6, the strip inner face lower region 17 surface is siliconized to form a tenacious engagement with adhesive sealant 51.

In Figures 7 and 8, the strip is partitioned to facilitate a first method of installing joint seal over a shower tray or bath ledge. In over ledge installations the height of the joint seal may be reduced through removing a longitudinal portion referred to as an off-cut'.

The means of controlling the strip off-cut width is through the provision of a longitudinal perforated partitioning line 95 or material weakness in the strip 11 that might accommodate tearing or line 95 might be simply identifiable as a printed line or alternatively a tape adhesive liner upper boundary 36 or 37 line, spatially engineered into position to accommodate the preferred blade alignment for partitioning the joint seal 10.

Typically, the off-cut will be that longitudinal portion of joint seal 10 that transversely extends between the tearing/cutting partitioning line 95 and the strip lower boundary 13.

The installation method in Figure 7 is identical to that detailed for Figure 5 but wherein a strip off-cut is removed.

In Figure 8, a fillet of adhesive sealant 51 engages the ledge 92 and the strip inner face lower region 17 which may be siliconized to form a tenacious bond with adhesive sealant 51. Wall adhesive 40 is applied over wall 60, the strip inner face 14 and anti-capillary tape adhesive liner 21 which liner thereafter is removed as in Figure 6. The wall covering 70 is bonded to the wall adhesive 40 and backer foam 81 is installed between the wall covering bottom edge 71 and adjacent ledge 92. To complete the installation the joint between the ledge 92 and wall covering bottom edge 71 is sealed with an adhesive sealant 52.

In Figures 9-11, the strip has been partitioned to facilitate a second method of installing joint seal 10 over a shower tray or bath ledge wherein the strip orientation (unlike that shown in Figures 1-8) is reversed whereby the strip inner face 14 now faces the wall 60.

The strip off-cut is not discarded but is relocated as an isolating membrane to prevent adhesive sealant 51 applied on ledge 92 from making direct contact with the adjacent wall as a means to prevent three adhesion in respect of adhesive sealant 51.

The first step in this installation method is to insert an isolating membrane between the wall 60 and proposed adhesive sealant 51 being applied on the ledge 92. In Figure 9 the strip off-cut is that part of the strip detailed in Figure 4 below the partitioning line 95. The tape adhesive liner 34 is removed and the exposed tape adhesive bed 35 is bonded to the wall 60. Off-cut face 17B is a low energy surface that will not bond to adhesive sealant 51.

Alternatively, one could locate tape adhesive liner 34 or a strip 11 off-cut portion that had no adhesive bed attached, in position against the wall and use adhesive sealant 51 to hold it in position.

In Figure 10 partitioned joint seal 10 has been installed in the reversed orientation substantially above but also overlapping the off-cut portion defined by its facel7B. The method of installing joint seal 10 over the off-cut portion is substantially the same as that detailed in Figure 6 having regard for its reversed orientation. Siliconized face 17A tenaciously engages the adjacent adhesive sealant 51.

In Figure 11 wall adhesive 40 is applied over wall 60, the strip face 15 and adhesive liner 31 which liner thereafter is removed as in Figures 6 and 8 creating void 56 for use as an empty anti-capillary chamber or accommodate an anti-capillary sealant bridge 53, or both in the manner already detailed in respect of Figure 6. The wall covering 70 is bonded to the wall adhesive 40 and the joint between the ledge 92 and wall covering bottom edge 71 is sealed with an adhesive sealant 52.

Up-stand joint seal 10 can be installed as a stand alone up-stand joint seal, but it is intended to be installed as core component of complete waterproofing systems developed for installation over shower trays and baths. Such tanking systems will also include a waterproofing solution for wall surfaces and wall corner joints such as fleeced polyethylene or polypropylene matting and liquid applied waterproofing membranes.

It is to be understood that the invention is not limited to the specific details described herein which are given by way of example only and that various modifications and alterations are possible without departing from the scope of the invention as defined in the appended claims.

Claims

CLAIMS: 1. A joint seal (10) adapted to be installed as a component of a shower tray or bath sealing system, in the installed orientation between a shower tray or bath (90) comprising of: a flexible longitudinal strip (11) having a strip upper boundary (12) and a strip lower boundary (13) between which strip boundaries there extends a strip inner face (14) facing the ledge (92) and a strip outer face (15) facing the wall (60) which strip outer face has a strip outel face upper region (18) and a strip outer face lower region (16) and which strip inner face has a strip inner face upper region (19) and a strip inner face lower region (17): a tape (33) extending longitudinally on the strip comprising of a tape adhesive bed (35): characterized in that the joint seal (10) provides a means to retrospectively engage and retain an adhesive sealant backer material (80) on the strip inner face (14), after installation of the strip (11) on the wall (60) and before final installation of the shower tray or bath (90) adjacently to the strip (11), to engage and shutter the lower boundary of a curing adhesive sealant (51) retrospectively applied below the ledge (92) into the joint formed between the installed shower tray perimeter side wall (91) and the adjacent strip inner face (14).
2. A joint seal as claimed in the preceding claim wherein the adhesive sealant backer material is a foam backer material (80) and said means of retrospectively engaging and retaining the adhesive sealant backer material (80) to the strip inner face (14) is through touch engagement with pressure sensitive tape adhesive bed (35) extending longitudinally on the strip inner face (14).
3. A joint seal as claimed in and preceding claim wherein the tape (33) further includes a releasable protective tape adhesive liner (34) over the tape adhesive bed (35) and which tape adhesive liner (34) has an upper boundary (36) and a lower boundary (37) between which tape adhesive liner boundaries there extends a liner inner face (39) facing the ledge (92) and a liner outer face (38) facing the wall (60) to accommodate rolling the joint seal (10) for transport.
4. A joint seal as claimed in any preceding claim wherein the joint seal (10) further provides a means of longitudinal partitioning to accommodate installation of the joint seal (10) substantially or exclusively over a shower tray or bath ledge (92).
5. A joint seal as claimed in any preceding claim wherein said means of longitudinal partitioning of the joint seal (10) is through the provision of at least one perforated tearing line (95) or such material weakness in the strip (11).
6. A joint seal as claimed in any preceding claim wherein a strip partitioning line (95) is identifiable as a printed line to accommodate accurate partitioning the strip (11) using a knife blade or scissors.
7. A joint seal as claimed in any preceding claim wherein a strip partitioning line (95) is identifiable as spatially engineered tape adhesive liner upper or lower boundary lines (36, 37).
8. Ajoint seal as claimed in any preceding claim wherein partitioning of joint seal (10) results in a longitudinal off-cut portion that before partitioning typically extends transversely between the cutting/tearing line (95) and the strip lower boundary (13).
9. A joint seal as claimed in any preceding claim wherein the longitudinal off-cut portion includes a tape (33) or part thereof.
10. A joint seal as claimed in any preceding claim wherein the joint seal (10) further provides a means to prevent adhesive sealant (51) applied onto the ledge (92) from engaging the adjacent wall (60).
11. A joint seal as claimed in any preceding claim wherein said means of preventing adhesive sealant (51) applied onto the ledge (92) engaging the adjacent wall (60) is through the bonding of an off-cut portion to the wall (60) through use of the attached pressure sensitive tape adhesive bed (35) in location between the wall (60) surface and the proposed interface of adhesive sealant (51).
12. A joint seal as claimed in any preceding claim wherein said means of preventing adhesive sealant (51) applied onto the ledge (92) engaging the adjacent wall (60) is through the relocation of releasable protective tape adhesive liner (34) or unencumbered off-cut portion between the wall (60) surface and the proposed interface of adhesive sealant (51).
13. A joint seal as claimed in any preceding claim wherein there extends on the strip inner face (14) an adhesive bed (22) and protective liner (21) which is liner is removable after the wall adhesive (40) is initially applied, as a means of raising the level of the initially applied wall adhesive lower boundary to a higher level (42) to limit or prevent the effects of capillary action and provide a means of bonding a backer material (81) to the strip (11) through the exposed adhesive bed (22) to accommodate join movement and while in roll format the and protective liner (21) may act as a dual release liner that engages an adhesive bed (22) on its outer face (26) and a provisional fixing tape adhesive bed (32) on its inner face (25).
14. A joint seal as claimed in any preceding claim wherein there extends on the strip outer face (15) a provisional fixing tape adhesive bed (32) and provisional fixing tape adhesive bed liner (31) to provide a preliminarily means of part engagement of the strip (11) with the wall (60) in preparation for the subsequent application of a permanent adhesive bed (50) to facilitate a permanent engagement of the opposing strip outer face (15) or desired part thereof with the wall (60).
15. A joint seal as claimed in any preceding claim wherein the tape adhesive liner (34), provisional fixing tape adhesive bed liner (31) and the anti-capillaly tape adhesive liner (21) may typically be of a polyethylene or polypropylene material siliconized on one or both sides.
16. A joint seal as claimed in any preceding claim wherein the tape adhesive bed (35), provisional fixing tape adhesive bed (32) and anti-capillary tape adhesive bed (22) are typically hot melt transfer adhesives.
17. A joint seal as claimed in any preceding claim wherein the strip (11) is a flexible polymeric material such as 100-300 micron polyethylene or polypropylene or a heavier polymer material.
18. A joint seal as claimed in any preceding claim wherein a means of tenacious engagement between the strip (11) and adhering materials (51) is achieved through surface etching and/or the application of a silicone film over part or whole strip (11) surface.
19. A joint seal as claimed in any preceding claim wherein a means of tenacious engagement between the strip (11) and adhering materials (40) is achieved through one or more longitudinal regions of the strip (11) being laminated with a rough fleece material.
20. A joint seal as claimed in any preceding claim in combination with a close celled backer material (80, 81) or the like that may be compressible and round or linier in section.
21. A joint seal as claimed in any preceding claim in combination with an adhesive sealant (50, 51, 52, 53) of the type that may be extruded uncured from a tube, applied as desired and thereafter cure as flexible sealant adhesive.
22. A joint seal as claimed in any preceding claim wherein the joint seal (10) dimensions are spatially engineered so that the height of the strip upper boundary (12) on the wall (60) after installation between a shower tray or bath (90) and adjacent wall (60) is substantially the same as the height of the strip upper boundary (12) on the wall (60) after installation of joint seal (10) over a shower tray or bath ledge (92).
23. A joint seal as claimed in any preceding claim in combination with an adhesive sealant spatula of such width as to facilitate the identification of the strip upper boundary (12) on the wall (60).
24. A joint seal as claimed in any preceding claim in combination with overlapping waterproof wall matting or a liquid applied waterproof membrane or a wall adhesive (40).
25. An installation method of a joint seal according to claim 1, characterized in the engagement of a backer material onto the strip inner face (14), after installation of the strip (11) on the wall (60), before final installation of the shower tray or bath (90) and before application of adhesive sealant (51) into the joint formed between a shower tray or bath perimeter side wall (91) and adjacent strip inner face (14) as disclosed herein with reference to the accompanying drawings.
26. An installation method a joint seal according to claim 4, characterized in the partitioning of joint seal (10) and thereafter the part employment of joint seal (10) over a shower tray or bath ledge (92) as disclosed herein with reference to the accompanying drawings.
27. An installation method a joint seal according to claims 11 and 12, characterized in the partitioning of joint seal (10) and thereafter the employment of an off-cut portion of joint seal (10) over a shower tray or bath ledge (92) as an adhesive sealant (51) isolating means as disclosed herein with reference to the accompanying drawings.
28. A joint seal substantially in accordance with any of the embodiments as herein described with reference to and as shown in the accompanying drawings.