On 01/06/2014 10:51, Martin wrote:
On Sun, 01 Jun 2014 10:39:57 +0100, Tim Watts wrote:
On 01/06/14 10:27, T Blake wrote:
We want to make a Cloche with hoops of bent-over plastic water pipe, covered
in Plastic sheeting; to end up like a minature Polytunnel for the allotment.
We dont know where to get a large sheet of plastic from here in North West
London,
The internet.
http://www.firsttunnels.co.uk/polythene-covers.asp
so we are going to stick together 'cut-open' clear plastic bags.
What would be the simplest way to stick the bags together, and if glue is
the answer;
You won't glue polythene - the usual option is tape.
Plastic bags will be too weak as well - plastic comes in gauges - you'll
want something reasonable heavy.
Do they make a polytunnel that is capable of surviving winter gales of Beaufort
9/10?
Professional ones usually will provided that the end doors are locked
down. Once wind gets in under the structure then you have trouble.
Neighbouring commercial greenhouse ones failed in a force 12. Probably
punctured by flying debris but noone was brave enough to go and see.
Pieces of corrugated iron sheet were airborne that night.
--
Regards,
Martin Brown