2 October 2000

Erica Avenue
Glen Iris
Victoria 3146

Wren Industries Pty Ltd
2A Bricker Street
SANDRINGHAM
Victoria 3 192

Dear Tim

LETTER OF COMMENDATION


I take this opportunity to acknowledge how Foil Batts overcome the inability of my mother's ducted airconditioning system to keep her home cool. During construction of the house in 1996, R2.5 Rockwool insulation batts were installed above the ceiling and "Azurelight" double glazing fitted in the north facing windows, preventing about 70% of the sun's heat entering through these windows. Despite these features, the airconditioning system was unable to keep the house below 30 degrees celsius during heat waves. On occasions, it was 35 degrees inside, despite running the airconditioner 24 hours per day.

After identifying the black roofing tiles as the cause of the massive heat entering the house, a heat extraction fan was professionally selected and installed in an attempt to remove the build up of heat in the ceiling cavity. This thermostatically controlled fan ran virtually non stop for the entire summer, only making a negligible difference to the inside temperature of the house.

In desperation I carefully stapled Foil Batts under the roofing tiles which had been laid without foil sarking under them. Foil Batts were also placed on top of the insulation batts already in place above the ceiling. The airconditioning ducting was then wrapped with R2.5 insulation batts. Foil Batts were then placed around the airconditioning ducting, maintaining your product's concertina pattern. Finally, a 3 metre length of large diameter (40cm) airconditioning ducting was installed from a vent in the garage ceiling. This ducting enables cool air from inside the garage to enter the ceiling cavity above all rooms in the house.

The result is incredible. My mother who is largely confined to her home due to ill health, now enjoys an indoor temperature during the summer of around 26 degrees, even on days when the outside temperature exceeds 40 degrees. Equally remarkable is the performance in winter. Before installing Foil Batts, it was necessary to keep the ducted heating running at night for the entire winter. The heater now only runs at night for a maximum of 4 weeks each winter.

As mentioned, your remarkable product and expert advice continue to make a lasting impression. Of longer term importance are the environmental benefits of using less energy which I acknowledge here as a member of an environmental discussion group, sponsored by CPA (Certified Practising Accountant) Australia.

Sincerely,