"bp" wrote in message
...
Hi

I am almost ready to purchased a self build conservatory, but I have 1
problem and would like some advice. THe conservatory will have a
polycarbonate roof, and is of the lean to type.

There is a soil pipe on the wall where I want to fit my wall plate. I
cannot change the location so I need some advice on how to fit round
this. I have seen 2 options (from other photographs)

1) Cut the wall plate in 2 and fit either side of the soil pipe. Cut
the polycarb sheeting to the shape of the pipe. In effect this would
be a 'U' shaped cut in the sheeting. Then seal around the polycarb.
I am having trouble working out exactly how I would seal/flash around
the back of the soil pipe. What I have seen somewhere was just a
whole load of sealer piled up - hoping that it wouldn't leak. It did
not look very safe or reliable.

2) The only other option I have seen is where the builder built out
from the wall using timber. Large battens were fitted to the wall
either side of the soil pipe. Essentially a structure was built up
and fixed to the wall around the wall pipe. The conservatory then
starts proud of the pipe. The wall plate is fitted to the timber
structure. The wall plate does not need to be cut, nor does the
polycarb sheeting. You still have to seal up/flash the timber
structure, and I could not see how that was done, but I am assuming
the builder chose that option as it was preferable to cutting the
sheeting because it would have been easier to seal/flash the timber
than to seal/flash sheeting that had been cut.

So can anyone recommend which of these is the better option, in terms
of getting a leakproof roof.

Either way how would someone flash up the soil pipe

May be there is a better option - if so I would like to hear it.



http://www.screwfix.com/prods/19121/...tilation-Slate
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