Lumisol Diffused Polythene

£9.55 excl. VAT | £11.46 incl. VAT

Designed specifically for Polytunnel Covers, Lumisol Diffused is a UV ’open’ polythene film, allowing UV light to reach your plants. 

Sold By The Metre, Minimum Purchase: 5m

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SKU: PCD Categories: ,

Description

Light-diffusing polythene films scatter the light as it passes through the polythene. This enables the light to penetrate deep in to the plant canopy, as it hits the plant from all directions, not just from the direction of the sun. This ‘diffused’ light reduces the higher foliage from shading the lower parts of the plant. Light diffusing films allow more light in to your polytunnel when the sun is low in the sky (early or late in the day, and also during the short days of winter). The diffusing process deflects more light downwards in to the crop, rather than being reflected upwards as happens with glass and clear polythene.

Lumisol Diffused can reduce mid-day summertime temperatures by 2-4°C Anti-Drip (condensation reduction).

Thanks to its unique additive, Lumisol® is able to control the condensation of water on the underside of the tunnel cover. Providing the film is correctly fitted, water will condense uniformly as a very thin layer, which, instead of remaining in position as droplets, runs down the sheet. This reduces the risk of water dripping on to the plants below and prevents the loss of light caused by these droplets, which can amount for as much as 15% light reduction. The effectiveness is reduced over the life of the cover, but an anti-condensation solution (Sunclear©) can be re-applied with a sprayer after several years if required.

Comes with a 5-year incremental guarantee, although a 12-14 year lifespan is not uncommon.

  • Light Transmission: 87-91%
  • Thickness: 720g (180 Micron)
  • Thermicity: 80-85%
  • Diffusion: 90-93%

HOW MUCH POLYTHENE DO YOU NEED?

Are you looking at replacing your polythene? Be it diffused or clear, we’ve got the best polythene around. But do you know how much you need?

Our handy guide below is here to help

Polythene calculator illustration

CALCULATING YOUR SHEET WIDTH

First you need to know the width of your polytunnel.
If you’re not sure of the width or height, you should measure the circumference of the polytunnel (A) and then make the following allowances:

Fixing method

Add per side (approx.

Trenching into the ground

1m (3ft)

Fixing to a base rail

0.5m (1’6”)

Fixing to a side rai

0.5m (1’6”)

CALCULATING YOUR SHEET WIDTH

Once you’ve measured the length of your tunnel (B) you need to make an allowance for the ends, especially if your cover is fixed to the door frames rather than clipped on to the end hoops.

The width of the structure (C) and the width of the doors are the main considerations. As a general rule when fixing to the door frames you should add 2m (6ft 6in) per end, so for a 6.1m (20ft) tunnel you would order a 10m (33ft) long polythene sheet.

For a 14ft (4.27m) wide polytunnel with single doors at both ends, you would be wise to add another extra metre to be safe.

Use the below table for guidance:

Width of tunnel

Trenched

Base Rail

Side Rail

8ft (2.44m)

9.2m

7.3m

7.3m

10ft (3.05m)

9.2m

7.3m

7.3m

12ft (3.66m)

9.2m

9.2m

7.3m

14ft (4.27m)

9.2m

9.2m

7.3m

16ft (4.9m)

9.2m

9.2m

7.3m