"Jake" wrote in message ...


Thinking laterally - a neighbour had a clematis montana growing on the
front of his house (picture 2-storey house with protruding
porch/single storey garage attached on the side). He kept it pruned
beautifully. But what he didn't realise was what was happening in the
background. It had sent roots through soffit vents. The first he knew
was when the light in his downstairs loo (in the porch bit) wouldn't
work. Upshot was the soffits and fascias were removed, along with a
lot of his porch roof tiles, to hack out the maze of growth between
the ceilings and the roof. We're talking pitch black and something out
of Day of the Triffids! Those roots grew in the dark and filled a few
cubic metres of roof space, probably in about 3-4 years. Would ivy do
the same?


Doubt it - ivy does not do aerial roots - just shoots that need light .
Agree on clematis shoots, they go everywhere -regardless of light

Regards
Pete
www.thecanalshop.com.