"Martin Brown" wrote in
message ...
On 17/09/2012 13:47, harry.yates wrote:
Can I have suggestions for alternative materials to use
instead of glass
for my greenhouse?

If you intend to heat it then twinwall polycarbonate is
pretty good.

This sounds good to me as an alternative to installing the
difficult inner bubblewrap every autumn, with duck tape that
doesn't stick that well.

But as it's quite permanent, do you know how it is for
letting light through, e.g. UV and whatever rays it is that
plants need?

someone