Termicide Installation Manual - register.certmark.org · • Termicide PVC ‘Quickstrip’ strip shielding developed specifically for use with the Termiglass system provides a reliable,

Termicide Installation Manual

Version 1.0 01/04/09

TERMIGLASS Non Toxic Physical Termite Management System

Installation

Specifications and Technical Details


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Termiglass Non Toxic Physical Termite Management System

The Principal behind the installation of a physical termite barrier is quite simply to prevent the termite's passage through the material obliging them to seeking an entry point elsewhere to reach their food source. The nature of a correctly installed physical termite barrier requires the termites to construct a visible pathway in the form of a mud tube that can easily be detected and treated. Termiglass is the ideal construction material for the establishment of physical termite barriers. The installation of Termiglass between the ground in which termites breed and the building requiring protection is sufficient, when properly installed to protect the building from concealed infestation. The following drawings and instructions when read in conjunction with the relevant State and National Standards will provide a comprehensive guide to the correct installation and maintenance of the Termiglass physical termite barrier system.

NB: "A range of options is provided so that barriers may be used either singly, or in combination to provide am integrated termite barrier system".


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External Building Perimeters

Termiglass physical termite barrier material may be employed hard up against the external perimeter of a building in the form at a 100mm wide x 100mm deep continuous barrier finishing at ground level capped off with a suitable sealing material such as concrete, cement, plastic or other durable material. Care must be taken to ensure this barrier is not covered with the material that is not termite resistant or otherwise interfered with to maintain full protection.

Termiglass physical termite barrier material may be installed in a cavity between the external leaf and internal leaf of the cavity wall constructions, in conjunction with the strip shielding as specified below. The minimum width and depth requirement for this method of installation is 75 millimeters deep by 40 millimeters wide. With in cavity type installations a strip shielding extending to the outside if the brick or block work is required 'Termicide' 'Quickstrip' is available for this method of installation and Termicide Termite Resistant Silicone Sealant is used for all stick down, step down and jointing applications.

Termiglass Perimeter Cavity Barrier for Slab on Ground

Flashing Weephole Strip Shielding


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Termiglass

Non Toxic Physical Termite Management System

External Building Perimeters

Termiglass Perimeter Cavity Barrier at Slab with separate footing

Termiglass External Perimeter Barrier at Slab on Ground

Termiglass External Perimeter Barrier at Slab with separate footing


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Method of Application

The components that go towards making up a full Termiglass protection treatment for buildings are as follows:

(a) Full under floor treatment (b) External perimeter treatment (c) Internal cavity perimeter treatment (d) Service pipes and other slab penetrations (e) Key, Sawn and Construction Joints in floor slabs (f) Retaining walls and internal step downs


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Termiglass


Concrete Slab on Ground Protection

• Termiglass can be used under all types of reinforced or non reinforced concrete slab constructions on the ground by installing:-

(a) A minimum of 75 millimeters of Termiglass over the full area when the area has been compacted with at least 50 millimeters of fill or (b) A minimum of 100 millimeters when the slab is to be laid on non compacted ground.

• It is not considered necessary to install Termiglass under edge or reinforcing beams where the depth is greater than 150 millimeters.

• With slabs designed to AS2870 and AS3600 that are deemed 'Termite Barriers' to

AS3660.1 Termiglass protection is not considered necessary.

• Where ground movement of any kind is considered under a building with a suspended floor either in the form of non compacted fill or clay type reactive soils a layer of construction grade plastic sheeting is recommended prior to the installation of Termiglass protective material.


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Termiglass


Under Suspended Floor Protection

• Termiglass protection to under suspended floors takes the form of a non compacted 100 millimeters deep layer covering the entire under floor area. Consideration must be made to ensure adequate sub floor ventilation and drainage to maintain effectiveness.

• All timber stumps, poles and supports should be encased in at least 100 millimeters of

Termiglass compacted under and around them that extends to a height of at least 50 millimeters above the surrounding ground level.

• Protection of Termiglass installations once in place is an essential requirement and every endeavor to avoid unnecessary disturbance or contamination should be made.

• When installing Termiglass on sloping or contoured ground it is important to ensure the

material is not allowed to slump or slide by providing appropriate barriers made from termite resistant materials at sufficient intervals to ensure the correct depth of Termiglass is maintained.

Termiglass Barrier under timber floor with less than 400mm clearance

Termiglass Barrier under timber floor with greater than 400mm clearance


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Termiglass


External Perimeter Notes

• The use of Termicide ' Quickstrip' strip shielding when installing Termiglass in the building cavities ensures that all faults in render, brickwork or masonry are adequately protected against concealed termite entry. When required, strip shielding should be installed on all horizontal surfaces and maintained vertically on any step downs and vertical joints in one continuous unbroken barrier.

• All service penetrations such as electrical, plumbing, gas and telephone penetrations must

be encased in a minimum collar of Termiglass 25 millimeters thick that adjoins and integrates with the main physical barrier.

• To ensure full termite proof protection of perimeter barriers a clear and identifiable

inspection zone must be implemented around the full perimeter. Rainwater down pipes, conduits and other external wall attachments must have a clear observation / inspection zone around them and such things as garden beds, outbuildings, mulching agents, paths, patios and driveways must not interfere or obstruct the established inspection zone.

• In the event where cavity fill perimeter is employed on a brick up bases that follow the

natural contour of the land the Termiglass will require a filler to bring it up to the required level, a 7-10 millimeter diameter washed gravel aggregate is recommended. Cement mortar may be used as an alternative but other fillers such as sand must not be employed.

Termiglass Perimeter Masonry Cavity Walls with Suspended Slab

Weepholes Strip shielding penetrating 35 to 50 into termiglass 75mm height Finished ground, landscaping or paving level


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Termiglass Barrier for poles, posts or stumps

Termiglass Perimeter Barrier in blockwork walls to slab on fill


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Service Pipe Penetrations

• All penetrations to concrete ground floor slabs require protection from termites.

• Sacrificial foam collars with a minimum width of 75 millimeters and depth of 75 millimeters can be installed around each penetration prior to pouring. At a later date these collars can be burned / cut out and the ensuing void can be filled with tamped Termiglass and capped with either a cement or plastic seal finished flush with the surrounding floor level.

• Any lagging or other material around the penetration points must be removed and Termiglass tamped into the resulting void-Multiple cables running in conduits must have the conduit removed where it crosses a termite barrier to allow the Termiglass to completely surround the cables.

• Termicide polypropylene cast in place 'Frizbee's' are a satisfactory alternative to sacrificial

foam collars as they do not require further attention after being put in place.

• Frizbee's are pressed around penetration pipes prior to pouring the slab and sit within the body of the slab. When the concrete cures the collar provides a fixed physical barrier to termite protection.


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Key Joints, Construction Joints & Saw cuts

• All areas of ground floor slabs that do not have a continuous underlay of Termiglass that have construction joints or sawn joints must be protected on the underside with a layer of Termiglass not less than 75 millimeters deep and 50 millimeters wide adjoining the proposed joint.

• The Termiglass in such situations should be of sufficient width to accommodate any possible joint movement that might possibly occur.

• In situations where the Termiglass joint is laid on non compacted or reactive site material it is recommended that the Termiglass material be placed in an open conduit cast into the underside of the slab. The conduit must have sufficient flexibility to allow for an anticipated movement in the formed joint and dimensions adequate to give the required width and depth of the Termiglass barrier.

• All Termiglass under slab protection should extend into the existing perimeter barrier to ensure effective continuous protection.

• Vertical control joints in external walls where a Termiglass barrier is installed should have a strip shielding barrier fixed to one face to allow for movement across the inside of the control joint to allow for any movement that may take place.

• An alternative method for vertical control joint is the use of Termicide Termite Resistant Silicone Sealant inserted into the joint to the height of the cavity filled Termiglass material.

Treatment for Saw Cuts/Control Joints


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Retaining Walls and Internal Step Downs

• To successfully prevent termite penetration of retaining walls and internal step downs a minimum width wall of 40 millimeters of Termiglass must be laid against the entire inside face of the area to be treated.

• In addition a further layer of clean aggregate of 7-10 millimeter fill should be laid against the Termiglass with a continuous plastic waterproof membrane between them with a drainage pipe installed at the base.

• Care must be taken when back filling to ensure an even thickness of both Termiglass and aggregate fill. Each end must meet with and maintain a continuous barrier with the perimeter barrier of the construction.

Termiglass Barriers at changes in level of concrete slabs


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Installation of Strip Shielding

As previously noted there are two main types of strip shielding recommended for use with Termiglass Physical Termite Barrier.

• With the introduction of Termicide Termite Resistant Silicone Sealant into the marketplace the joining, lapping and corner folding of aluminum strip shielding that was required in the past is now considered to be redundant.

• An overlap of 35 millimeters at each joint and corner fixed with Termite Resistant Silicone Sealant is sufficient to produce a continuous horizontal barrier around the perimeter of a building.

• Termicide PVC ‘Quickstrip’ strip shielding developed specifically for use with the Termiglass system provides a reliable, clean, easily installed alternative to other methods. The L section can be easily sized to suit all brickwork and block work thickness including bagged and rendered finishes.

• Quickstrip is highly compatible with Termicide Termite Resistant Silicone Sealant and when used together provide a quick, clean and reliable physical termite barrier system.

• Protrusions or penetrations that pass through the PVC barrier should be cleaned and dried prior to sealing around the base with Termicide Termite Resistant Silicone Sealant.


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Termiglass Installation Procedures - Installers

• Assess job site to be OHS compliant • Clean top of brick work plus inside perp joints to ensure the cavity where Termiglass is to

be installed are clean and clear of mortar plus any other foreign matter

• Ensure cavity width is no less than 40mm wide plus 75mm in height along the entire length

• Ensure the cavity is clean and free from honey combing or crevices that might prevent complete and intimate contact between the Termiglass and the concrete slab

• Ensure exterior wall insulation or bracing does not extend into the brick cavity ie:

Termiglass barrier

• Strip back Termicide quick strip L Section level to applied mortar finish or rendered house ensure Termicide L Section will be cast into render

• When laying L Section ensure greater than 35mm overlap on joins and glued with PVC

glue as to prevent termite passage

• Corners to be overlapped and sealed using Termicide sealant

• L Section to be glued down to brickwork under doorways and full height windows using liquid nails

• On split level step-downs ensure L Section is continually 35mm into Termiglass at all times

• Ensure garage engaged piers are capped above future driveway height

• After L Section is installed as a continuous barrier pour Termiglass into the clean 75mm x

40mm cavity created by the brickwork

• Ensure Termiglass is compacted and scarified so as to form a complete and continuous physical barrier

Documents

Termicide Installation Manual - register.certmark.org · • Termicide PVC ‘Quickstrip’ strip shielding developed specifically for use with the Termiglass system provides a reliable,