"Janet Tweedy" wrote in message
...
In article , Tim Tyler writes


Whilst on the subject what is the difference between ordinary and
horticultural grade glass? Some greenhouses have shatter proof glass
which is useful but what is H grade stuff? Does it have flaws in it so
can't be used for domestic buildings?

Janet
(who is looking at the Alitex web site but affording probably one from
Robinsons)

p.s. What benefits does a low brick wall instead of glass have, around
the base of the greenhouse? Won't that make the inside a bit gloomy and
damp? Is it better? Do I want it?
--
Janet Tweedy
Dalmatian Telegraph
http://www.lancedal.demon.co.uk

Hort grade glass is thinner (normally 3mm) standard window glass starts at
4mm and goes up according to size of window (bigger areas need thicker
glass). Hort grade glass is used because its cheaper as it contains less
glass, it is however more prone to breakage.
safety glass is a lot more expensive but of course essential if small
children are running around near a greenhouse, it should in my view always
be used for glass conservatory roofs as ordinary glass is quite dangerous
(last year a jackdaw dropped an old meat bone which came straight through
the greenhouse showering me with glass!

--
Charlie, gardening in Cornwall.
http://www.roselandhouse.co.uk
Holders of National Plant Collection of Clematis viticella (cvs)