On 17/08/2016 09:06, wrote:

in buildings the roof is very important if it is tiles there is
close to 1 tone of tiles on the roof its about half that if slate
still a big error if there is no strenthening of the roof as 1 day
the big hole in the plasterboard where you sleep and the big pain
in your chest where the rafters has just crushed would mean the
structure of the building has been compromised it could be a big
cost and it could land you in some hot water with your local
council

Why would the rafters require strengthening anyway? They were designed
to carry the load of tiles they have, you you have presumably not added
more.

With loft conversions, the primary thing that needs strengthening is the
floor of the loft, not the roof.

--
Cheers,

John.

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