polytunnel

Hi BB,

I've just done a quick search, and found this info link,
 http://www.ruralni.gov.uk/print/index/bussys/organic_production/organic_horticulture/polytunnel.htm

I remember finding some other info on polytunnels somewhere else but couldn't find it.

Hope this helps though,

Goldfinger

Put it up so the rounded sides face the prevailing wind, east to west not so important IMHO.
But you don't want the winter gales blowing hard against the doors and window in the ends, which is where the poly cover is weakest because of the joins around the door frame.