In article , Michael Chare
wrote:
On 26/12/2019 11:27, wrote:
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.


If the roof is asestos you do need to be very careful. It would be
worth checking if that really is the case. There are specialist
asbestos removers and they might give your a free quote and tell you if
the roof is made using asbestos.

Asbestos cement is not the samae s asbestos. It was a very commonly used
building material in the '60s and 70's to my knowledge. I used it when
building an extension in the early 70s. The Marley garage at this house
also uses corrugated asbestos cement as its roofing material.

But on the original question, I imagine the steel ridge was/is structural.
I can't see the roof staying up, let alone supporting your weight on a
crawler if you remove it. Bitumen ridge tiles might keep the rain out, but
they haven't any structural strength.


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from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle