Polytunnel Replacement Covers, Purposes, and Uses
- polytunnelsrusweb
- Apr 28
- 3 min read
Polytunnel companies offer a diverse range of replacement polytunnel covers that come in a selection of thicknesses and types, each designed to meet specific needs for crop protection, light transmission, insulation for heat retention and environmental control. UK polytunnel companies offer these cultivation and housing options to cater to varying micro-climate conditions, crop requirements, and grower or use preferences, such as storage, animal housing, and work or relaxation shelters.
The different types of manufactured polytunnel covers allow growers, farmers, garden centres and other users to tailor their micro-climate or operational setup to achieve the best possible protective conditions, whether for extending the growing season, improving crop yields, protecting plants from harsh weather or the many uses they can be put to.
Many polytunnel companies provide services for decorative business canopies and walkways or for creating eating spaces, entertainment and display areas.
Types of Replacement Covers
Standard clear or opaque, these basic polythene covers are a commonly used option for polytunnel kits. They allow around 90% light transmission, up to 180 microns, for use in crops and plants, meeting most general gardening needs. Form a protective shield, allowing crops to begin to grow earlier in spring and later into autumn. They are suited to vegetables, fruits, and flowers, providing basic protection from rain, wind, cold climes or moderate frost.
Thermic or Insulated Covers
Thermic polytunnel covers contain applied additives that help to reduce heat loss by trapping infrared radiation warmth within the covering. Offers lower-light transmission access than standard covers to retain interior warmth. The added insulation protection helps extend the growing season perfect for colder UK locations, avoids the chances of frost damage and improves temperature stability, making them suitable for tender, delicate crops and plants that require consistent warmth.
Anti-drip or Fog Covers
Minimise the effect of water droplets forming inside the cover, which can cause mould or fungal diseases, beneficial in humid climates and for sensitive crops, the cover improves light penetration and creates a healthier environment by reducing humidity inside the polytunnel.
Anti-Condensation Sheets
Manufactured and specifically designed to prevent condensation within storage housings, sheds, livestock buildings, commercial housings, and more. Their integrated membrane absorbs the moisture droplets before releasing them into the air when the temperature rises.
Diffused Covers
This type of cover scatters sunrays, reducing direct exposure and minimising the risk of crop heat exhaustion and scorching. They help spread the light transmission evenly throughout the polytunnel covering. The even light distribution supports healthier growth, reducing shadowed areas that could lead to uneven plant development.
UV-Stabilised Covers
Applied film to resist sun damage and degradation, from harmful and powerful rays, extends the life of treated polytunnel covers. Use, by many growers in high sun exposure locations, prevents discolouration and brittleness. Although more costly, for those growers looking for longevity, performance, and reliable protection.
Specialised Coverings
Polytunnel companies provide high-end covers that may combine, several beneficial properties, including light diffusion, thermal retention, layered insulation and anti-condensation features. They provide advanced climate control for commercial growers who require precise stable conditions. They’re suitable for high-value crops and extend the growing season of warm-weather crop types.
Poly-Carbonate Sheets
Thick and very robust material, more expensive but with a longer lifespan, is mostly used on commercial polytunnel structures by growers who require a durable heavy-duty product to suit growing or purpose needs.
Why Polytunnel Companies Offer a Range of Polytunnel Covers
Polytunnel companies supply a quality range of polytunnel covers to meet and create the specific needs and demands of different crops or growing environments and intended uses. In the UK, where weather conditions can vary greatly, Polytunnel companies provide a range of climate-related covers that allow growers and other users to select the best option for their unique environmental growing conditions or operational purposes. Whether it’s protecting from frost, or heavy rain, ensuring correct light diffusion for a stable micro-climate, or extending the lifespan of the covering with UV stabilisation, polytunnel covers serve a unique purpose to keen gardeners, farmers and commercial operators.
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