Felt over cap stones on roof?

[LazyD]

Hi,

We had a section on the roof blow off last year on our block of flats and a completely new roof was fitted.

Someone had to go up there for an unrelated matter and have a look and said that they had felted over the cap stones which was incorrect and a bad job. They also pointed out that the corners where they have folded the felt down over the edges of the cap stones are already somewhat loose, they thought that they would eventually work loose and could blow off again.

Does this make sense? Is it bad practise to felt over the cap stones?

Thanks.

[cotswold builders]

Photos would help, only guessing your talking about a flat roof.

Depends on the detail, regarding finished roof and coping stones.

[LazyD]

Yes flat roof. Here you go mate:









Thanks.

[LazyD]

Just updating this thread as requested, cheers.

[cotswold builders]

That looks a good tidy job.

Although felt or lead flashings would have went under the coping stones, it seems they have done a far better job, covering the copings.
You have less chances of any leaks via the lead/felt joins under the copings, plus potential leaks through the coping joins.

The wind may have caught a small section of felt not fully heated, but you can see by the beads of bitumen that the felt has bonded well.

Your guys might have been better of applying some heat to the loose felt, and re-sticking, instead of driving those nails in.

[cotswold builders]

Forget the nails, looks more like bird crap.

[LazyD]

Yeah that's from the birds.

Thanks a lot for your reply, put my mind at ease, I appreciate it.