What can I do if I have no anti con insulation under my roof :
Believe it or not there are a lot of people in Australia with this problem.The effects range from over heating, heat escape and condensation. I had a client a couple of months ago with this problem and to make things worse their roof was black. In the month of September by 10 am they needed the air conditioning on. The worst part was the roof was only a couple of years old so it wasn’t worth replacing.
An insulation company came along and filled their ceiling up with R3 batts which made it unbearable ( like putting a jumper on) To find out why reed this article http://www.solacebuildingservices.com.au/building-services/what-type-of-insulation/
So what the roof really needed was some foil insulation. I have found a product that is perfect for this type of scenario. You can easily install it yourself its non toxic and so simple and effective. I personally believe that this product is custom made for any hot climate. Concertina foil batts.
heres the link http://www.concertinafoilbatts.com/
This product will help the insulation factor but not the water leaks.