"Andrew Mawson" wrote in message
news:bvSdnYD9_rJSk6nUnZ2dnUVZ8v-
Base is concrete, and dead nuts flat!
There is no provision for clipping
The groove depth is too shallow to pierce the sheeting and retain
strength
The sellers son initially told me Lakeland were in Scarborough, then
Cleatormoor in Cumbria, neither check out.
(Obviously a China made item)
I suspect that silicone will peel off in the wet and wind as the
overlap is so small

...argh !

AWEM


Pictures of the sad thing he

http://tinyurl.com/55552h

AWEM

Oh Deary Me - our hearts bleed for you (;-(

I have no experience of polycarb - someone will hopefully be along soon who
has.

My best suggestion would be to convert it to glass somehow.

Regards
Pete
www.thecanalshop.com