[go: up one dir, main page]

AU2005203323A1 - Termite barrier - Google Patents

Termite barrier Download PDF

Info

Publication number
AU2005203323A1
AU2005203323A1 AU2005203323A AU2005203323A AU2005203323A1 AU 2005203323 A1 AU2005203323 A1 AU 2005203323A1 AU 2005203323 A AU2005203323 A AU 2005203323A AU 2005203323 A AU2005203323 A AU 2005203323A AU 2005203323 A1 AU2005203323 A1 AU 2005203323A1
Authority
AU
Australia
Prior art keywords
termite
physical
barrier
termite barrier
site
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.)
Abandoned
Application number
AU2005203323A
Inventor
Donald McGregor Ewart
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.)
GRANITGARD Pty Ltd
Original Assignee
GRANITGARD Pty 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
Priority claimed from AU2004904221A external-priority patent/AU2004904221A0/en
Application filed by GRANITGARD Pty Ltd filed Critical GRANITGARD Pty Ltd
Priority to AU2005203323A priority Critical patent/AU2005203323A1/en
Publication of AU2005203323A1 publication Critical patent/AU2005203323A1/en
Abandoned legal-status Critical Current

Links

Landscapes

  • Building Environments (AREA)

Description

P/00/0 11 Regulation 3.2
AUSTR.ALIA
Patents Act 1990
ORIGINAL
COMPLETE SPECIFICATION STANDARD
PATENT
Invention title: TERMITE BARRIER The following statement is a full description of this invention, including the best method of performing it known to us: arsm MO I I I1727348v 1 305537240 27.7.2005 _TERMITE BARRIER Field of the invention 00 The present invention relates to improvements to termite barriers. More particularly, the present invention relates to a physical termite barrier material that can be C- installed in a building or part of a building to prevent entry of termites to the building.
¢€3 SBackground of the invention c-i t In this specification, where a document, act or item of knowledge is referred to or discussed, this reference or discussion is not an admission that the document, act or item of knowledge or any combination thereof was at the priority date: part of common general knowledge; or (ii) known to be relevant to an attempt to solve any problem with which this specification is concerned.
A number of methods have been proposed for the protection of buildings against subterranean termite attack. These methods generally involve either poisoning the ground surrounding the building with a termite resistant chemical, the provision of a physical barrier such as an aggregate or a mesh around or in the building, or a combination of both a chemical and a physical barrier.
Australian patent no 686054 describes a method for forming a physical termite barrier that involves providing a layer of particles of graded aggregate in certain cavities throughout a building, such as between walls, building slabs and/or slab penetrations, to prevent termites from entering the building through the various cavities and attacking cellulose material contained therein.
The physical characteristics of the graded aggregate particles described in Australian patent no 686054 are important for the performance of the invention described in that patent. In particular, the particles must be of a size that is too large or too heavy to be moved by a termite. The particles should also be sufficiently hard to prevent termites from chewing them. In addition, the particles must be shaped and positioned such that any interstices between particles are not large enough for a termite to crawl through.
Barriers of this type are very effective deterrents to termites. However, it has been observed that, in order to ensure the integrity of the barrier when installed, the particles must be carefully graded before installation. Further, these same requirements also limit the range of possible particle materials useable in such a system to those that either have arsm MOI 11727348vl 305537240 27.7.2005 1 o the required physical characteristics, or to those to which those characteristics may be C easily imparted. Hitherto, graded aggregate termite barriers have been made from stone such as granite or analogous materials such as crushed glass.
00 Summary of the invention The present invention provides in one embodiment a physical termite barrier for Cc protecting a site from termite ingress or attack, the barrier comprising a physical termite Mc, barrier material comprising a termite resistant particulate component incorporated in a flexible material, the arrangement being such that, when the barrier material is applied to t a site to be protected from termite ingress or attack, termites are deterred from passing through the material and reaching the site.
(Ni The present invention provides in another embodiment a method for forming a physical termite barrier for a site to be protected from termite ingress or attack, the method comprising the step of applying to the site a physical termite barrier material comprising a termite resistant particulate component incorporated in a flexible material, -whereby to form a physical termite barrier for the site.
The present invention provides in another embodiment a physical termite barrier material for use in protecting a site from termite ingress or attack, the termite barrier material having a termite resistant particulate component incorporated in a flexible material, the arrangement being such that, when the barrier material is applied to a site to be protected from termite ingress or attack, termites are deterred from passing through the material and reaching the site.
The particulate component may be embedded in the flexible material to form a matrix in, through, or on, which the particulate material is distributed. Typically the particulate component will be bonded to the flexible material. By bonding the particles of the particulate component to the flexible material to form a matrix, the criticality of the size range of the particles is thought to be appreciably reduced as compared to physical termite barriers such as those described in Australian patent no 686054. The matrix formed between the particles of the particulate component and the flexible material will typically have sufficiently high bond strength so as to reduce the relative importance of the shape or size of the particles.
The present invention accordingly provides a termite barrier which has the benefits of using a particulate material to form a physical barrier but which can also utilise particles having a wider range of physical characteristics.
The particulate component may be dispersed in the flexible material in any suitable manner. In one embodiment, the particulate component is substantially arsm MOI I 1727348vl 305537240 27.7.2005 Suniformly dispersed throughout the flexible material to form a matrix. In an alternative CI embodiment the particulate component is dispersed about the surface of the flexible material without permeating into the interior of the flexible material to any significant 00 extent.
(Ni It is particularly preferred that the particles are distributed throughout the matrix Cc in a substantially uniform manner such that termites cannot pass through the matrix by c' avoiding the particles and cannot remove particles from the matrix.
A site to be protected from termite ingress or attack will typically be a known t termite pathway such as a building cavity.
The termite resistant particulate component may take any suitable form. The particles of the particulate component may be termite resistant by way of hardness. They may be formed from any durable hard material such as sand, silica, stone, rock, glass, or plastic. The particles may be of a suitable stone type. A typical example of a suitable stone type is granite. They may be glass particles, such as crushed glass or glass splinters.
They may be metal scales. They may be formed from a synthetic material, such as polyethylene. The particles may be formed from a naturally termite resistant softer material such as wood particles, or wood flour of termite resistant species. The particles may be coated or impregnated with a termicide and/or a pesticide. Typical examples of termicides and/or pesticides include organophosphates, organochlorines, and natural or synthetic pyrethroids. Other particle types for the particulate component are envisaged within the scope of the invention.
The size of the particles to be incorporated into the flexible material to form a matrix will typically be in the range of about 0.1 to 3mm.
The flexible material component of the physical termite barrier material will typically be formed from a synthetic material. The synthetic material may be an elastomeric material to provide flexibility to the barrier material when formed. Examples of materials suitable for use as a flexible material according to the invention include polyurethane formulations created as trafficable waterproofing membranes, polyureas, synthetic rubbers, and glues. The flexible material may of itself be termite resistant.
The flexible material will typically be in a flowable form when the particulate component is being incorporated into it. Such an arrangement will typically form a material matrix. The termite barrier material generated in a flowable form may accordingly be a coating capable of being applied to a surface or into a cavity by brushing, spraying, rolling, trowelling or an equivalent application technique. The nature of the flexible material may result in the barrier material comprising a settable liquid.
arsm MOI I 11727348v 1 305537240 27.7.2005
I
Alternatively the barrier material may be provided in a solid form, such as in the C1 form of a flexible sheet or roll when set.
The barrier material may be applied vertically, such as to a wall surface or to fill a 00 vertically extending cavity, or it may be applied horizontally, such as to a floor surface. It will typically be able to be applied to a suitable building material substrate such as Cc concrete, masonry, mortar, timber, render, mesh, fabric, soil or paper, and may be used Sto cover a surface, to fill a void, or to bridge gaps and joints.
The physical termite barrier material may be applied to a site in any suitable t thickness or to any suitable depth. A typically preferred depth or thickness is greater than about The flexibility of the combination of the flexible material and particulate component allows the termite barrier to absorb movement in the structure in which it is installed. This is particularly important where the termite barrier is installed at joints or other discontinuities between building components such as slabs and mortar courses.
In a particularly preferred embodiment the flexible material is at least partially cementitious. The flexible material may accordingly incorporate a material such as a cement render. In this embodiment the flexible material will typically have cured and uncured elements, wherein the termite barrier is formed by mixing the particulate material with the flexible material when in the uncured form and the matrix so formed is allowed to cure.
The flexible material may be a water based material, and may be waterproofed by the inclusion of a waterproofing compound.
A physical termite barrier material according to the present invention may further include a reinforcing material. The reinforcing material may in one embodiment comprise a mesh to provide strength and rigidity to the barrier material. The reinforcing material may also provide strength to the barrier material whilst still preserving its overall flexibility. Suitable reinforcing materials in this regard may include fabric or fibres that are dispersed in the flexible material along with the particulate material.
A termite barrier according to the present invention may be formed in situ by adding the particulate material (and optionally the reinforcing material) to the flexible material to form the termite barrier, which can then be installed in a conventional manner between various building cavities. In an alternative embodiment the termite barrier may be preformed before delivery to the site of installation.
arsmMOI l1727348vl 305537240 27.7.2005 0 According to this embodiment the termite barrier may be preformed into various C shapes and configurations to suit different installation environments. For example, a Ztermite barrier according to the present invention may be preformed into a membranous 00 sheet material and provided in roll form. Embodiments where the particulate material is CI 5 bound into a flexible matrix can also be made to be stretchable by preforming the barrier into a membranous sheet material. Particular applications of this embodiment include ¢€3 Sstretch-on collars for pipes and other penetrations into a building slab.
Cc Alternatively, the termite barrier may be preformed into a cord, which can be CI worked into a gap such as a slab saw cut to thereby provide a termite barrier. The cord S 10 may be of any suitable cross-sectional shape, such as circular or triangular to allow contact C7 with a surface.
Description of the preferred embodiment Several embodiments of the invention will now be further explained and illustrated by reference to the following accompanying drawings in which: Figure 1 is a top plan view of a physical termite barrier material according to one form of the invention; Figure 2 is a side view of the physical termite barrier material illustrated in Figure 1; Figure 3 is a side view of a physical termite barrier material having the particulate component dispersed in a different manner to the material of Figure 2; Figure 4 is a side view of a physical termite barrier material showing yet another manner of disbursing the particulate component; Figure 5 is a side view, partly in cross section of a physical termite barrier applied as a coating to a masonry course; Figure 6 is a side view, partly in cross section of a pre-formed, stretch-on pipe collar made from the termite barrier material according to the invention and applied to a pipe; Figure 7 is a cross sectional view of the pipe through the line A-A in Figure 6; Figure 8 is a top plan view of a slab having a saw cut in its upper surface and a preformed cord made from the termite barrier material according to the invention; and Figure 9 is an end view of the cord installed in the saw cut of the slab illustrated in Figure 8 arsm MOI 11727348vl 305537240 27.7.2005 o Turning to Figure 1, a physical termite barrier material 10 is illustrated. The CI material is composed of a synthetic, elastomeric material 12, throughout which particles 14 of varying sizes ranging from about 0.1 to 3mm are dispersed. The synthetic material 00 12 is preferably a polyurethane formulation that has been specifically created for use as a trafficable waterproofing membrane. Such formulations are known to those skilled in the art.
(Ni ,l Other flexible materials such as polyureas and synthetic rubbers or glues may also Mc, be used instead of the abovementioned polyurethane formulation.
t The particles 12 are termite resistant, in that the particles are of a sufficient hardness that they can not be chewed by a termite. Materials such as sand, stone, rock, glass, metal or suitable plastic are suitable in this regard. Certain dense natural substances, such as a termite-resistant timber may also be used. Certain softer particles may also be used, such as wood, if they have been pre-treated by impregnation with a termite repellent or termite resisting compound and/or a pesticide. Suitable termiticides and pesticides are known to those skilled in the art and include organophosphates, organochlorines and natural or synthetic pyrethroids or plant extracts.
The termite barrier material 10 is formed by mixing a sufficient quantity of particles 14 with the flexible material 12 such as in a cement mixer. A reinforcing material such as fibres 16 may also be added to the material 10 and mixed in with the particles.
Mixing together of the particles 14 and flexible material for a suitable time results in a substantially uniform distribution of the particles 14 throughout the flexible material 12, as illustrated in Figures 1 and 2.
Other distributions of particles 14 are also contemplated, as is illustrated in Figures 3 and 4. Figure 3 illustrates a physical termite barrier material 10 where the particles 14 are dispersed along the exterior surface of the material 10 and do not permeate into the interior of the flexible material 12 to any significant extent. Such an embodiment of the invention is formed by adding the particles 14 to the flexible material without mixing them together.
Figure 4 illustrates a physical termite barrier material 10 where the particles 14 are dispersed as a layer that extends through the interior of the flexible material 12. Such an embodiment may be formed by spreading a layer of particles 14 over a quantity of flexible material 12, and then adding another quantity of flexible material 12 over the layer of particles 14.
The physical termite barrier material 10 may be trowelled directly onto a vertical or horizontal building substrate after the particles 14 have been dispersed into the flexible arsm MOI I 1727348vl 305537240 28.7.2005 1 o material 12. Turning to Figure 5, the termite barrier material 10 is illustrated as being CI applied to a depth of around 10mm, to the exterior surface of a masonry course constructed from bricks 24, that are interspersed with and bonded together with mortar 00 22. The course of masonry extends below the floor level 19 of the building, down to a lower portion 21 of the building slab 20. The physical termite barrier material 10 is applied as a continuous layer both along a portion of the masonry course and also along a C'i vertically-extending, lower portion 21 of the slab M After application, the material is allowed to set, with the flexible material 12 C forming into a flexible matrix with the particles 14 bonding to the flexible material to form a matrix. Once the termite barrier material 10 sets into a termite barrier, termites CI are prevented from gaining access to cellulose material in the building, (such as wooden beams 28, 30) by tunnelling underground and accessing the building through gaps in the mortar course or between mortar 22 and the slab 20. Because the particles 14 are bonded to the flexible material 12, they can not be removed and carried away by a termite.
The versatility of the termite barrier material 10 of the present invention is illustrated by the fact that it may be formed into a multitude of termite resisting devices.
For example, the termite barrier material 10 may be formed into a sheet-like material 26.
Sheets are pre-formed and delivered in rolled-up form to the particular site for installation. Termite resisting sheets, that effectively form a protective membrane against termite attack, are known in the art. Such sheets are made from materials such as polyester woven fabrics and are installed to bridge gaps between the mortar 22 in a mortar course 22 and cellulose material 28, 30 of the building and thereby block the path of termites entering the building through gaps in lower portions of the mortar course. As will be realised from Figure 5, use of the sheet material 26 formed from the termite barrier material of the present invention, in conjunction with a trowelled vertical layer of the same termite barrier material 10, provides a very effective termite barrier.
The termite barrier material 10 may also be formed into a tubular-shaped collar 36, as illustrated in Figures 6 and 7. Conveniently, the collar 36 may be stretched over building elements, such as pipes 34, that must penetrate a building slab 20 in order to provide a water or sewerage connection to the building. Such slab penetrations provide a prime site for termites to enter the building through the slab by travelling between the pipe 34 and the slab 20. Use of a pipe collar 36 that extends around the pipe 34 and into an area cut into the slab 20 has a tendency to block this path, as is known in the art.
arsm MOl 1727348vl 305537240 27.7.2005 Another possible site for termite entry into a building is along a path defined by a Cl saw cut 38 made in a slab 20, during its construction as illustrated in Figure 8. The termite barrier material of the present invention may also be formed into a flexible cord 00 40 that may be worked into the cut 38 by applying a suitable pressure to the cord 40 in C" 5 both a downwards direction and in the direction of the cut 38. The cord 40 then functions to fill the cut and thereby block the path of termites seeking to enter the building along the slab.
Cc The word 'comprising' and forms of the word 'comprising' as used in this (Ni description and in the claims does not limit the invention claimed to exclude any variants or additions. Modifications and improvements to the invention will be readily apparent to Cl those skilled in the art. Such modifications and improvements are intended to be within the scope of this invention.
arsmMOI I 1727348v 305537240 27.7.2005

Claims (14)

1. A physical termite barrier for protecting a site from termite ingress or attack, said 00 C1 barrier comprising a physical termite barrier material having a termite resistant particulate component incorporated in a flexible material, the arrangement being Ssuch that, when said barrier material is applied to a site to be protected from Stermite ingress or attack, termites are deterred from passing through said material and reaching the site. (Ni
2. A physical termite barrier according to claim 1, wherein said particulate S 10 component is embedded in said flexible material to form a matrix in, through or on which said particulate component is distributed.
3. A physical termite barrier according to claim 1 or claim 2, wherein said particulate component is bonded to said flexible material.
4. A physical termite barrier according to any one of claims 1 to 3, wherein said particulate component is substantially uniformly distributed throughout said flexible material. A physical termite barrier according to any one of claims to 3, wherein said particulate component is dispersed about the surface of said flexible material without substantially permeating into the interior of said flexible material.
6. A physical termite barrier according to any one of claims 1 to 5, wherein the particle size of particles of said particulate component is in the range of about 0.1 to 3mm.
7. A physical termite barrier according to any one of claims 1 to 6, wherein said flexible material component of the physical termite barrier material is a settable or curable material.
8. A physical termite barrier according to claim 7, wherein said settable or curable material is flowable, such that said particulate component may be incorporated into said flexible material.
9. A physical termite barrier according to any one of claims 1 to 8, wherein the particles of said particulate component are termite resistant by way of hardness. A physical termite barrier according to any one of claims 1 to 9, wherein the particles of said particulate component are termite resistant through impregnation or coating with a termiticide and/or a pesticide. arsm M01 I 1727348v 305537240 28.7.2005 I S11. A physical termite barrier according to any one of claims 1 to 10, wherein said (71 barrier material further includes a reinforcing material.
12. A physical termite barrier according to any one of claims 1 to 10, wherein said 00 barrier material is formed into a preformed stretch-on collar for a pipe or other slab penetration. Cc 13. A physical termite barrier according to any one of claims 1 to 10, wherein said Cc barrier material is preformed into a cord, suitable for working into a gap such as a slab saw cut to thereby provide a termite barrier. (Ni t 14. A physical termite barrier material for use in protecting a site from termite ingress or attack, said termite barrier material comprising a termite resistant particulate component incorporated in a flexible material, the arrangement being such that, when said termite barrier material is applied to a site to be protected from termite ingress or attack, termites are deterred from passing through said material and reaching said site.
15. A method for forming a physical termite barrier for a site to be protected from termite ingress or attack, the method comprising the step of applying to the site a physical termite barrier material comprising a termite resistant particulate component incorporated in a flexible material, whereby to form a physical termite barrier for the site.
16. A method according to claim 15, wherein said physical termite barrier is formed in situ by adding said particulate component to said flexible material to form said termite barrier.
17. A physical termite barrier for protecting a site from termite ingress or attack, substantially as hereinbefore described and with reference to any one of the accompanying drawings.
18. A physical termite barrier material for use in protecting a site from termite ingress or attack, substantially as hereinbefore described and with reference to any one of the accompanying drawings.
19. A method for forming a physical termite barrier for a site to be protected from termite ingress or attack, substantially as hereinbefore described and with reference to any one of the accompanying drawings. Granitgard Pty Ltd 24July, 2005 arsmMOI 11727348vl 305537240 27.7.2005
AU2005203323A 2004-07-28 2005-07-28 Termite barrier Abandoned AU2005203323A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2005203323A AU2005203323A1 (en) 2004-07-28 2005-07-28 Termite barrier

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2004904221 2004-07-28
AU2004904221A AU2004904221A0 (en) 2004-07-28 Termite barrier material
AU2005203323A AU2005203323A1 (en) 2004-07-28 2005-07-28 Termite barrier

Publications (1)

Publication Number Publication Date
AU2005203323A1 true AU2005203323A1 (en) 2006-02-16

Family

ID=36047029

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2005203323A Abandoned AU2005203323A1 (en) 2004-07-28 2005-07-28 Termite barrier

Country Status (1)

Country Link
AU (1) AU2005203323A1 (en)

Similar Documents

Publication Publication Date Title
JP5333901B2 (en) Anti-ant structure of building and basic anti-ant construction method of building
AU2015221449B2 (en) A construction element
US5094045A (en) Termite barrier
WO1997009491A1 (en) Method and means for preventing or minimising termite attack or infestation
KR101134498B1 (en) Construction method of eco-friendly flooring of parking garage
JP5502167B2 (en) Curable termite control composition and kneaded product using the same
JP2002061310A (en) Termite intrusion preventing method and intrusion impeding material used therefor
JP5175044B2 (en) Curable termite control composition and termite control method
AU2005203323A1 (en) Termite barrier
AU2011201010A1 (en) Method of Forming a Termite Barrier
US20050274295A1 (en) Multi-function construction material, system, and method for use around in-ground foundations
JP2010084358A (en) Termite prevention structure of building and construction method for termite prevention of foundation of building
AU758879B2 (en) Membranous termite barrier
AU719812C (en) Method and means for preventing or minimising termite attack or infestation
AU2004100880A4 (en) Membranous Termite Barrier
AU777086B2 (en) Improvements in or relating to termite barriers
AU750994B2 (en) Chemical treatment system and method
JP4638060B2 (en) Underfloor ant structure
JP2001011963A (en) Insect repellent structure
AU704025B2 (en) Termite barrier
US20080120934A1 (en) Scratch board and method of manufacturing and using same
AU2004100424A4 (en) Glass termite barrier
AU2003203815A1 (en) Granular Termite Barrier
AU2003100834A5 (en) Membranous Termite Barrier
AU2006203552A1 (en) Termite resistant mortar and method of termite proofing a structure

Legal Events

Date Code Title Description
MK4 Application lapsed section 142(2)(d) - no continuation fee paid for the application