Replacement Covers
To calculate the size of polythene or net sheet needed for your replacement polytunnel cover, please use our online calculator. Please feel free to contact us if you are still unsure as to the size of cover needed.
Alternatively, if you know the size of cover needed or if you would like to buy polytunnel plastic or net by the metre, please see our range of polythene films and netting.
Using our measuring guide, please enter the information to calculate your cover size and cost.
-
ConfigureRegular price From £8.00Regular priceUnit price per
-
View productRegular price £19.00Regular priceUnit price per
-
ConfigureRegular price From £3.00Regular priceUnit price per
-
Thermal Anti Drip Polytunnel Covers
We pride ourselves on offering the very highest quality of Thermal Anti Drip polytunnel covers - the preferred polythene of UK growers. Our polytunnel polythene films are the first in the UK to include NEW 5-layer co-extrusion technology. This innovative system protects against disease and excess moisture, prevents heat loss, enables effective light diffusion and stops dust from gathering.
Choose from the following polytunnel replacement covers: 600 gauge/150 micron polythene film with a 4-year warranty against UV degradation, or a 720 gauge/180 micron polythene film with an extended 5-year warranty.
Net Polytunnel Covers
We're proud to be one of the very best net polytunnel covers suppliers in the UK and are able to produce one-piece sewn net polytunnel covers, which have an impressive 8-10 year lifespan.
This green 47% shade net is ideal to be used on a polytunnel with or without a polythene cover in place. Used on its own a net cover provides shade, full ventilation, significant reduction in wind speeds, and still allows rainwater to filter through to the plants. It also provides excellent crop protection from birds and insects.
Placed over a polytunnel plastic, the net provides shade and significantly reduces the temperature inside.
Is there a good time of year to replace my polytunnel plastic?
You'll probably have a good idea when the time's coming up to replace your polytunnel cover and ideally, you'll want to wait for a warmish day to do it, as it makes the polytunnel plastic more flexible. It's not essential though, especially if you have the option to re-tension the cover after fitting. However, to make the task as straightforward as possible, wait for a calm, non-windy day. Why not read our blog on covering a polytunnel for more tips.
Don't forget, our polytunnel covers are made to last - the polythene we use for our covers is specially developed to resist UV degradation for up to 5 years, although it’s not uncommon for them to last for up to 10 years. When the time eventually comes to replace your polytunnel cover, you can do so quickly and easily at Premier Polytunnels.
Questions about our polytunnel covers
We pride ourselves on offering a high level of customer service and are on hand to answer any questions. Here are some of the most common questions we get asked about our polytunnel covers. Take a look at our list of Construction Advice & FAQs for more details on fitting a polytunnel cover, or give our team a call if you have any further questions.
Sophisticated polythene films contain a number of special chemical additives which make up the many properties of the films. These include light diffusion, stabilisation against UV breakdown, thermal and anti drip properties, blocking of ultra violet radiation, anti mist, and others. In addition, the films are often produced using more than one base resin.
Until the introduction of multi-layer extruders more than 25 years ago, the additives and resins were all mixed in together in the one and only layer that was available at the time.
However, among the additives there are those which are incompatible or, when mixed together, give undesirable results such as haziness or reduced transparency. It was recognised that for a polythene film to be as efficient as possible it was necessary for a particular additive to perform on the upper or lower layer of the film and not randomly wherever it was found.
The multi-layer co-extrusion technology (first 2-layers and later, 3-layers) allowed polythene producers, to a certain extent, to place materials where they need to be. It also allowed them to separate particular additives that were incompatible into different layers.
In 2001, Premier Polytunnels’ polythene extruders installed the first large-size 5-layer extruder, allowing the additives within the film to be divided more evenly still – making for an even more efficient polytunnel cover.
No - “Real” polytunnels are not supplied with a shaped cover. A one-piece polythene sheet is pulled over the polytunnel frame, and is secured by being buried in a trench or by being fixed to base rails at ground level, and by being fixed to timber door frames at each end.
Our polytunnel covers are not green covers with roll-up blinds or zip doors - our covers are the real deal.
Yes - Here at Premier Polytunnels we pride ourselves on offering the very highest quality Thermal Anti Drip polythene - the preferred cover of UK growers. This Thermal Anti Drip polythene must be placed with the Anti Drip side facing inside.
The word “INSIDE” is written within the logo - as long as you can read the word “INSIDE” left to right as normal when you are standing inside the tunnel, the cover is the right way round.
The outside/top layer of this polythene film includes Anti Dust additives, making it more difficult for dust to remain on the polytunnel plastic and making it easier for the wind, rain and your cleaning efforts to remove any accumulated dust from the outside of the tunnel.
No - Although a warm day is preferable as this gives the polytunnel plastic more flexibility, a warm day is not essential to get the cover tight, especially if you have the option to re-tension the cover after fitting.
A calm day is without doubt necessary as you are effectively opening a large sail.
Find out more about covering a polytunnel here.
The polythene film used for polytunnel covers is very strong and will not readily tear or split. Puncture holes can appear when contact with a sharp object occurs, but splits do not radiate outwards from these holes as they do with glass. Tears are easily repaired with a UV resistant polytunnel repair tape and there is no reason why the cover will not last its full term.