What is the best polytunnel cover?
I recommend the standard, light-diffusing polythene which admits around 89% of daylight. Always use horticultural grade polythene, which has a uv stabiliser, without which it would be brittle and break within a year.
How do you stop poly tunnel blowing away?
We would recommend that if you are placing your polytunnel in a windy location, that you opt for crop bars and additional storm bracing. We would also recommend that you take extra care in making sure that the plastic is pulled taut over the structure and will not flap about too much.
How do you secure polytunnel plastic?
Trenching is the traditional method used to secure your polythene over your polytunnel. To use this method you will need to dig a trench around the polytunnel, then bury the polythene in the trench and cover with soil; the soil will weight down the cover. The downside to this method is digging the trench.
Are cheap Polytunnels any good?
If the average life of a polytunnel is 10 years you would have to replace your cheap greenhouse completely once or twice every year for the same outlay. So they are good value.
Do Polytunnels need to be level?
Ideally, the area of land you select to site your new polytunnel on should be flat and level. Therefore it is important you clear any unwanted rocks or debris before erecting your polytunnel. If constructing on a slight slope build your polytunnel vertical, not perpendicular to the slope.
How do you wind proof a polytunnel?
Hedging, or a line of deep-rooted trees, makes an excellent windbreak which helps protect your new polytunnel in a storm. But do make sure there aren’t any branches near to or overhanging the polytunnel. In severe winds they could be ripped from the tree and damage the polythene cover on your tunnel.
How do you protect a polytunnel from wind?
For example, you can protect a polytunnel from strong winds by planting a wind break to reduce the buffeting it may get in a gale and prolong the life of the plastic. Polytunnels can survive some wind but if a location that you have identified for your polytunnel is hit by strong winds.
How do you protect polythene from polytunnel?
Trenching is the traditional method used to secure your polythene over your polytunnel. To use this method you will need to dig a trench around the polytunnel, then bury the polythene in the trench and cover with soil; the soil will weight down the cover.
How big does a direct polytunnel tunnel need to be?
Whether you’re a gardener, allotment owner or commercial grower Direct Polytunnels have the heavy duty, high-quality polytunnel kits you’re looking for. Our tunnels are available in a variety of sizes. These range from 10 to 18 feet wide with a variety of lengths of up to 90 feet.
What’s the life of a polytunnel plant cover?
Choose from lengths of 12 to 66 feet to maximise your planting area. Our polytunnel kits are all heavy duty and commercial grade. They’re made from the best quality components including high tensile steel. The polythene cover has a life expectancy of up to ten years. And the super-strong frame will never let you down.
Which is stronger a polytunnel or a glasshouse?
Firstly you should avoid generalising about characteristics of Polytunnels vs Glasshouses (e.g. thinking Polytunnels are stronger than Glasshouses or Vice Versa). There are a huge range of Polytunnels from extremely strong to extremely flimsy and the same applies to Glasshouses.
How big is a single span polytunnel greenhouse?
Small Single Span Polytunnels Span sizes 3m (10′) and 3.7m (12′) Excellent value for money Simple to erect with no foundation concrete required A good starting point for the home garden or commercial sites where space is tight Hoops are spaced between 1.25m and 2m apart Good volume for ventilation Growing space for tall crops