Australian Standards set out various options for termite management systems to be installed during the building construction. For this building it was decided to use a combination of a concrete slab along with a sheet material to be installed at joints and penetrations of the slab. Joints and penetrations are locations which are particularly prone for termite ingress and hence require additional measures for protection.
AS 3660.1 sets out the requirements for termite management systems in new buildings. This standard stipulates the slab-on- ground shall meet the requirements of AS 2870 or AS 3600 and that joints shall have an additional termite management system as specified in the standard.
For the joints and penetrations, the decision was made to use Kordon® , a termite system developed by and made in Australia for Envu. Kordon is a laminate of polyester webbing impregnated with deltamethrin between two UV stable sheets of polyethylene. The flexibility of the laminate makes Kordon ideal for use on commercial sites where various installation situations occur. Deltamethrin is a strong repellent for termites.
The slab at ground level has 90 locations with pipe penetrations plus 76 metres of slab joints requiring the installation of Kordon. Pipe penetrations are protected with pre-formed collars made of Kordon (“Kordon Kollars”) which are quickly and easily installed prior to the concrete pour. The complete Kordon installation was c by Trimec, one of Envu’s trained and accredited Kordon installers. When commenting on the job and the number of penetrations Paul Harris of Trimec said a “Kordon is a great product and made a challenging job easy to protect “