Joining Osma to floplast gutters

[Andrew]

I have Osma gutters and the hopper+downpipe are on my side
of the boundary. Neighbour has ?floplast gutters which are
larger than Osma gutters so the bloke who replaced the
neighbours gutters just cut a chunk out of the top line
of the gutter and forced it into my hopper then tried
to seal it with something that has set rock hard. Years
later it drips when it rains so now I need to fix it
before the Autumn storms arrive.

The Osma gutter sits comfortably inside the floplast
gutter so I think a short stub of Osma gutter, projecting
over the boundary fence and inside the neighbours gutter
should do the trick after trimming an inch off
the floplast gutter to keep it away from the hopper.

The issue is what is a suitable adhesive for joining
uPVC ?. Can ordinary solvent weld adhesive be used
bearing in mind this is south facing ?.

Andrew

[newshound]

If you need any gap filling at all you are probably better off either
with a non-setting mastic or with good quality silicone (from a cartridge).

[Brian Gaff (Sofa)]

I don't see how this could be done without it dripping on theorised though.
The problem with plastic gutters seems to be as they creak and grown in the
sun, anything rock hard will, in time fracture. It may well be that in the
end its just a job that needs redoing every few years. Its a great pity that
whoever did the last job did not know enough about the adjoining gutter to
match its profile
Brian
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[Andy Burns]

Brian Gaff (Sofa) wrote:

> Its a great pity that
> whoever did the last job did not know enough about the adjoining gutter to
> match its profile

Is there not a company that is to guttering what McAlpine is to waste
pipes (i.e. they more or less can join any to any)?

[Andrew]

If you look at the Floplast website they have a compatibility list
because everything is supposed to comply with EN 12200. There are about
6 manufacturers and their gutters and 65mm square downpipes and fittings
should be all interchangeable. This is sort-of borne out in
practice but a Brett Martin offset bend might be a tight fit on
a Floplast pipe but not vice-versa. An Osma hopper will plug
into a Brett Martin offset bend to take the water under the
soffit but only by using the offset bend 'upside down'.

The compatibility chart shows Osma to be totally incompatible,
which is sort of true unless you are prepared to do some surgery
and joining Osma to an EN 12200 gutter is a problem.

Since kitchen waste pipe is mUPVC and joined using solvent cement,
I would have assumed that same stuff should 'weld' two sections of
uPVC gutter, where they overlap by 6 inches, the smaller Osma gutter
lying inside the Floplast EN12200 gutter.