Best type of polytunnel covering

blownin · Posted: Wed Nov 25, 2009 12:16 pm Post subject: Best type of polytunnel covering

I will be building a large polytunnel shortly if it would stop raining , about 30-40 foot long by 15 wide I live in a very exposed site with very high winds and rain, it will be held down well, posts concreted in to the ground and the ends of the plastic sheeting burried in a deep thench. Which grade of plastic should i order and would netting over it be helpfull or wear it out quicker ??

galwaybeginner · Posted: Wed Nov 25, 2009 9:18 pm Post subject:

If the netting is not tight it can wear the plastic.

Once the plastic is tight there should be no problem with wind. Mine is in a virtual gale path and has help in there for the last couple of weeks of strong winds.

michael brenock · Posted: Wed Nov 25, 2009 10:07 pm Post subject:

best get advise from colm warren plastic tunnels co meath. There are many grades of polythene consult the experts colm warren at deirdrewarren @cwp.ie
michael brenock horticultural advisor (retired)

paul5000 · Posted: Tue Jan 19, 2010 10:35 pm Post subject:

I use 1800 micron or 720 gauge which is fairly standard when ordering from poly tunnel supplier. It has stood up to some nasty wind.

galwaybeginner · Posted: Fri Apr 16, 2010 7:08 am Post subject:

I've 720 gauge (180 micron) UVI/EVA cover, and very happy with it. I went for clear, which lets the liht right in without dispersion. If you plan to grow plants which do not like direct sunlight then go for the anti-fog or 'white' which disperses the light, but also reduces it a bit.