My extension roof was leaking a few months back and on close inspection noticed one of the overlapping roof felts had come away. So I blasted it with a hot air gun and flattened it down and all seemed well.
I also coated it with Thompson's roof seal. However after a week or so I spotted that right along the repair loads of tiny holes appeared so coated it in more roof seal. After another few weeks more holes appeared.
Here is how it looks today a few months since I last coated it.
I bought some joint tape as suggested by the Thompson's roof seal site but I'm not sure that would do the trick.
Any suggestions as to what I can fill the holes with before giving it another coat of the roof seal? I can't imagine the holes could get any bigger!
Cheers.