In our last house we had a flat roof porch on the south side which was felted and got extremes of heat. It cracked and leaked. We had it replaced with fibreglass. It was flatter than it should have been so puddles did form on top but it never leaked in the next 20 years until we left. I notice the ‘new’ people are now having it rebuilt - but that could be because the wooden sides were starting to rot when we moved 14 years ago!
We put a properly draining fibreglass flat roofed utility room on the side of our new home and that has never been a problem.
Shall we reboot our cartoons thread again? 😁
How much do you spend on yourself?