Date September 10/1999

To Mr. Tim Renouf

C/o Wren Industries
P/L Cheltenham Vic
Fax 9532 5854

Dear Tim, This is the letter that I said I was happy to write for you, as I think your product is great and very beneficial.

To Whom It May Concern,

I own a 20x6 metre single fronted weatherboard house with a north facing rear yard. The rear addition has a semi-flat tin roof and originally, no insulation!! The first summer 1 died. So when the iron needed replacing conventional R2.5 batts were installed. Summer temps improved but the heat would soon build up to unbearable levels after 1-2 days and wouldn't cool down at night by much.

I saw Tim Renouf's product, Concertina Foil Batts Insulation, at the Melbourne Home show, how simple in theory it was, how much sense it made and how cheap it was. It was refreshing to meet someone who was passionate about their product.

It meant pulling up the roof iron again but it was worth it, even though 1 took a short cut and installed them on top of the batts, which was easier than trying to fit them underneath.

The results were very impressive. The rear section of the house can now be called cool in summer; the heat build up is less evident and dies quickly at night. The main roof was also done at the same time, this means that the flow of air keeps the house comfortable. If I was able to do the walls and floor I'm sure the results would be outstanding.

1 passed my information to a n eighbour who was doing a complete rebuild. His
"builder mate" talked him into conventional roof, floor and wall insulation. The roof
and walls had fibreglass batts installed, while standard foil insulation was draped
over the floor joists. His house is still cold in winter and builds up lots of heat in
summer plus his floorboards are popping and creaking.

Simply put the Concertina Foil Batts work!!

You can lead a horse to water but...

Regards
Ross Cavallaro

Flemington Victoria