Harry Bloomfield has brought this to us :
Harry Bloomfield explained :
The horizontal fill-in strip along the bottom (which a lighter double
skinned material), sits on the bottom lip of the L shaped vertical as
support for its outer edge and the correct way to support the edge nearest
the wall is using either a timber batten or a U shaped plastic channel
fixed to the wall - however I notice that most/all of the nearby houses
which have had this done, seem to have had the wall edge simply stuck with
silicon. This strip has to be cut along its length to fit the gap.

I would guess the wall edge has been simply supported with nails
temporarily, whilst the silicon is allowed to set, then the nails removed.
I'm not sure I would be happy doing this?

I have an idea which would solve this, with no need for a timber batten or U
channel along the wall...

The double walls are joined by a thin skin every 1" or so across their width.
If I were to drill, plug and fix some screws or nails along the wall and at
the centre line of where the horizontal panel should meet the wall, one
fixing every foot or so leaving the fixing stuck out a way - and I also cut a
hole in the thin skin to match up with the fixings, the panel would hopefully
be able to be dropped straight onto these, then the front edge dropped onto
the lip vertical.

There are times when I feel an absolute fool, and this is one of those
occasions.....

I was working on an assumption that the 5m long soffit material was
simply trimmed down along its width to fit the gap. I did actually
wonder why the embossed plank edge marks ran along the length of the
items which were delivered to me, whereas all the other house had there
plank edge marks going at right angles from the walls. I was also
wondering how I was going to maneuver a 5m long soffit into place on
top of a double extension ladder.

Well today I rang the supplier and asked about those plank edge lines
going the wrong way and it seems I had completely the wrong idea in
mind. You cut short bits off the end of the 5m, just enough to span the
gap between wall and onto the lip of the vertical L, the edge of which
then clips onto its mates either side - it all sounds much easier and
more manageable now.



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Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk