for a lot more on roof leaks and roof repairs...
We frequently get called out in Sydney to do roof repairs on newly installed metal colorbond roofs. This is when the house owner has given up on trying to get the roof installer to come back to fix the leaks.
The leaks are usually quite difficult to track down. If they were easy, the roof installer would have found it and fixed it. So, we become the last resort for desperate home owners who are sick of leaks spoiling a new house..