"James" wrote in message
...

Well it isn't a gable end - it is a party wall.

If we assume it is not up to the weight. What can I do to make it
suitable?

Standard 30's construction 4ft void at apex, purlins and rafters.
Brick stretcher party wall in good visual condition, lime mortar.

I have no specialist knowledge, but I wondered if it is possible for the
weight to be taken by the loft floor rather than the wall. I know such
floors are not meant to take weight, but they are nonetheless used to
house
equally heavy water tanks. Or does the placement of such tanks rely upon
a
structural wall underneath?

I see no reason why not, except that is is easier if there is good access
underneath for pipework connection. Boilers tend to come on a wall mounted
jig, which makes life easier. The load bearing wall that supports the party
wall will be very close though so that wouldn't be a problem. And yes tanks
are supposed to be close to or on a supporting wall.

I don't think it will be a problem, but I'll ask uncle architect first.

--
Mike W