On-growing houses that combine light, ventilation, temperature, and R.H. for an optimal climate.

These are identical crops in two different houses. The house on the left shows the crop without screen protection. The house on the right has the Svensson screen and the crop is 0.5m larger and 20% ahead of the other.

WITH SVENSSON SCREENS YOUR CROP WILL...

• Grow faster
• Be of better quality
• Increase output
• Have less disease
• Hence less spraying

This leads to lower costs, particularly labour costs. If you're heating you can reduce costs by up to 50%.

All around the world the most profitable growers achieve these results with Svensson Screens and it is one of the few investments you can make and usually get your money back within 2 years!

The internal screens come with a 5 year pro-rata guarantee and are resistant to greenhouse chemicals. They are knitted, so they don't fray. The structure allows the screens to fold into a very small bundle, maximising light transmission when the screen is open.

LIGHT

The easiest rule in optimising light is to let the light from the morning in, provide shade during the hottest part of the day, then open up the screens to let the sun in during the afternoon. By closing the screens at night you increase the night temperature and the plant temperature.

TEMPERATURE

During the day Svensson screens reflect the sun's radiation upwards, cooling the plants by up to 12°C. At night the films and foils block outgoing radiation, keeping the heat in the houses and keeping the plants warmer by up to 6°C. The more aluminium, the greater the effect. With heating costs, the savings can be 50%.

VENTILATION

Ventilation also means CO². On-growing houses should never be more than 1°C or 2°C above ambient air temperature.

HUMIDITY

70% to 80% RH is the ideal target. Low humidity means high transpiration and low growth and quality. Watering increases the RH but if too high, can also help spread disease. High humidity creates condensation and disease and also nutrient deficiencies.

Svensson screens help balance the RH, increasing it on hot days and reducing dew drop on the crop on cold nights.