We at Ferryman Polytunnels only supply commercial grade Polythene and offer a choice of covers for our tunnels. They all come with a 5 year warranty against uv degredation and an expected life of 8 years xcept our new Sunmaster superthermic EVO which has an 8 year warranty and expected life of 10 to 12 years.
25 years ago Polythene was 180 or 200 mu thick and they only lasted for 2 or 3 seasons so the thickness of a cover has nothing to do with how long Polythene will last or how strong it is. Consider this, a thinner cover means less weight to recycle.
Technology has come on a long way in 25 years and Polythene no longer needs to be so thick to make it strong, with the use of modern co-polymers. The difference between 150 and 180 mu is 30-100ths of a millimetre - a very very small amount.
The Polythene we supply with our Polytunnels is all 150 microns thick, except the EVO which is 180mu and has an anti-drip/anti-fog additive on the inside so your plants, and you, don't get dripped on when there is condensation in the tunnel.
We recommend the use of diffused (opaque/milky) covers for general growing as these will reduce the direct sunlight entering the tunnel so reducing the scorching of young plants,and in very hot sunny weather these covers will be cooler than a clear cover.
We are also able to supply Sunmaster SmartGreen for shade loving plants and Stockmaster White (please ring for details)
Sunmaster Diffused
Recommended for use on most smaller tunnels, for general growing.
Sunmaster Clear
Used where full sunlight is needed, especially in the far north where daylight hours are less.
SteriLite SuperThermic
Another diffused cover which has the benefit of an additive which holds the infra red rays in the tunnel, so retaining the heat for longer, the bigger the tunnel the more effective this becomes. Ideal where you are looking to extend the growing season and where heating the tunnel. There is also a UV block, which is ideal for organic growing. UV blocking is proven to reduce fungal and aphid attacks, and give a greater foliage area. Ideal for salad crops and general veg. growing on larger tunnels.
Sunmaster Superthermic EVO AC
SunMaster SuperThermic EVO AC is our new 8 layer polytunnel film. It has the best and longest lasting anti condensation system available, and the highest level of frost protection available in a film.
Use SuperThermic EVO AC for all crops where frost protection is important and where you are not looking to replace the cover so often.
SunMaster SuperThermic is the ONLY superthermic film on the market. There are others with a similar name but they do not offer similar thermal performance.
Still not sure? Give us a ring 0136384948
