ROBUS Multi Span - Northern Polytunnels

Call. 01282 873120Visit. npstructures.co.ukDoorsAluminium DoorsA variety of door arrangements are available forour structures. Doors are manufactured using astructural aluminium box-section extrusion.We have chosen to only supply aluminium doors. We think timber doors have a lowerlife-span and are a lower quality product in comparison. At NP Structures, we will notcompromise quality and functionality over price.Sliding Door KitsCover OptionsThe type of covering material can have a major effecton the growth and development of plants and cropswithin the structure.With little difference between the prices of the various polythenes, careful considerationshould be given to the choice of cover. We use bpi.visqueen films for all of our structures.We feel bpi.visqueen are the best manufacturer of polytunnel films. They offerquality, consistency and reliability. They invest heavily in film technology and productdevelopment. We will not compromise quality over price. bpi.visqueen are at the forefrontof cutting edge scientific research and film production.Five Season Guarantee against prematureUV degradation, on all polythenes.Luminol AFThe sliding doors can be fitted as a singledoor or a double door. These can be fittedto the end gable and on the side of theROBUS 2.3 and the ROBUS 2.75.Our sliding doors have a heavy dutyaluminium door track incorporating arain pelmet. This is supplied in a full,single length for easy and fast fitting.Double sliding door sets have a centraldrop bolt to secure the doors in theclosed position. Inclusive of all slidingdoor gear, aluminium tracking, fittingsand bolts.Thermic films that are further enhanced bylong-lasting condensation control properties.When properly installed, water will condenseuniformly on the film rather than as droplets.This, in turn, improves light transmission andreduces the risk of water falling on to theLuminance THB-AFplants below, reducing the risk of damageand disease.Thickness: 720g (180mu)Light Transmission: 90%Thermic Effect: 82%Light Diffusion: 22%(Luminol)Welded Aluminium DoorsAs with the sliding door kits, weldeddoors can be fitted as a single or doubledoor. A welded door is ideal when fittingto a tunnel in a high risk area or when alarger door is required.This new generation film combines greatthermic and light transmission properties.Its high diffusion characteristics make morelight available for plant growth and can helpto control peak temperatures and reduceplant scorching. Trials have demonstrated theLumisol AF- U.V Transparentproduction of high yields of excellent qualityproduce.Thickness: 800g (200mu)Light Transmission: 87%Thermic Effect: 90%Light Diffusion: 90%(Luminance THB-AF)Unlike normal greenhouse films that preventshort wavelength UV light (UVB) from reachingplants, our UV transparent films allow UVBto enter the greenhouse thus enhancing thefragrance, taste and colour of the crops. Inaddition, UV transparent films promote plantanti-oxidants, which are good for health,and encourage stronger plants. This greatlyOpaque WhiteA thermic film developed to help keep thegrowing environment warmer by reducing theheat lost through long wavelength infra-redradiation. Higher overnight temperaturesencourage plant growth, can reduce plantlosses and allow savings to be made onShade NetShade netting manufactured from a knittedpolyethylene monofilament to give a 40% or50% shade value. Dark green netting providesbenefits plant raisers and young plant growersas stronger plants can be easier to plant outthus saving time and raising productivity.Thickness: 800g (200mu)Light Transmission: 87%Thermic Effect: 90%Light Diffusion: 90%heating.Thickness: 720g (180mu)Light Transmission: 67-68%Thermic Effect: 55%Light Diffusion: 32-33%protection against sun and wind. Net coversare sewn to size to fit any size polytunnel.(Lumisol AF - U.V Transparent)(Opaque White)(Shade Net)24 Optional ExtrasCover Options25