"Tim Lamb" wrote

john west writes
We bought on of those Gardman plastic Greenhouse/polytunnels about a year
ago.

Those familiar with them know that the entrance is two full height Zips,
just like on a camping tent.

The Zip is broken and was never really strong enough to be up to repeated
use.

Would anyone know of any kind of fastener i might replace the Zips with,
hopefully keeping as much as the warmed air in as possible when they are
closed.

I'm not inclined to, or skilful enough to sew in another zip and the only
thing i can think of so far is about half a dozen adhesive backed Velcro
strips place horizontally.

Grateful for any other suggestions..... thanks.

Zips seems a bit OTT for a polytunnel.

Last one we had here the entrance was two timber uprights with the

polythene cover secured with staples.

The door was a strip of polythene secured at the top, slightly wider than
the entrance and tacked to a series of battens. The battens were pierced at
either end to take cords attached to the top and bottom of the doorway. A
third cord fixed to the middle of the bottom batten passed through an
eyelet at the door head could be used to adjust the opening to control
ventilation.

Stagnant air is not good in a greenhouse.

Biggest problem is when the Sun heats the metal frame and destroys the
plastic cover where it touches.

Those Gardman plastic covers only last about two summers before they rot
into a net like structure. Bought some of their large cloches to grow our
chillies under, have to find a new cover material now although fleece works
OK. Might try bubble wrap as I have a roll.
--
Regards. Bob Hobden.
Posted to this Newsgroup from the W of London, UK