"Hanne Bech-Jensen" wrote in message
...

"Hanne Bech-Jensen" wrote in message
...
Hi all.

On the homepage

http://www.onlinegreenhouses.co.uk/navigation.htm

I am so sorry... you can tell that I am obviously quite new to
this. BTW
how do you delete a message like this that went astray... from the
entire
newsgroup, I mean?

Anyway... I was going to ask if it was true as they state on their
website
above that you get algea growth in the gab inside polycarbonate
glassing for
greenhouses. Anyone have any experience on that.

Thanks in advance and sorry for the mistake... ;-)

Yes, you do indeed. I found that the only way of preventing it is to
block the open ends during a dry spell, to prevent water from getting
in.

Franz