I have a double length garage with asbestos/cement corrugated pitched roof.

The original ridge which is steel has corroded to nothing in many places and needs to be replaced as the garage is open to the elements in those places.

I was planning on using bitumen ridge tiles made by various people, also Wickes do them.

The roof itself is in good condition.

I was goung to use a sterling board crawler, the old ridge can be removed from inside as it is bolted through, worst way the bolts can be ground off and the ridge pushed off through the gap.

I've read here that people have said that they would not go onto the roof even with a crawler board, I had always assumed it would be ok.

Has anybody has experience of tackling this job, I really don't want to replace the roof as it would cost £1000s.

I would appreciate any comments.

Thanks in advance.