WHY SHOULD YOU CONSIDER INSTALLATION OF ALUMINET SCREENS?

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2 WHY SHOULD YOU CONSIDER INSTALLATION OF ALUMINET SCREENS? Saves energy Aluminet screens have been tested and proved to save over 50% of heating energy, which means direct reduction of your operational costs. Increases yields Better temperature control, together with optimized light management, ensure maximum yield from your greenhouse. Aluminet screens raise plant temperatures at night, avoid overheating in the day and improve photosynthesis by increasing the amount of scattered light. Protects against frost Many outdoor crops benefit from improved climate management. Aluminet screens installed on light-frame shade houses protect crops from frost, wind and heat stress, increasing both crop quality and productivity. Warranty Aluminet screens carry a long-term guarantee on product quality. The company s quality assurance policy focuses on supply of quality products to its customers - for long-term use - under harsh and diverse field conditions. All the company s activities are conducted under ISO 9001 and IQNet standards. HOW DOES IT WORK? Double-side reflection Aluminet screens reflect sun radiation during the day, reducing overexposure to heat, and reflect IR radiation at night, increasing plant temperature and reducing risk of freezing. The screens also prevent condensation on leaves. Light Diffusion Aluminet s special structure improves light management. The use of special additives and the multifaceted reflection of the twisted Aluminet strips contribute to efficient diffusion of incoming radiation, creating uniform light throughout the greenhouse.

3 AIR TEMPERATURE OF FROST RADIATION IN SHADE HOUSE - PEPPER CROP 8ºC 6ºC 4ºC Aluminet Outside Black 40% 2ºC 0ºC -2ºC -4ºC -6ºC -8ºC Results from a study conducted by the Agricultural Research Organization - The Vulcani Center, in the Arava region, Israel. 12:00 18:00 00:00 06:00 12:00 Time of day 28ºC 26ºC 24ºC 22ºC 20ºC 18ºC 16ºC 14ºC 12ºC 10ºC 8ºC 6ºC Air under Aluminet Air under Black Net Results from a study conducted by the Erez R&D research station, Israel Time of day EFFECTS OF SHADING TREATMENTS ON TOMATO CROP YIELD Aluminet 40 I (kg/m2) Whitewash Treatment Results from a study conducted by the University of Almeria, Spain.

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5 Aluminet I Open Screens Aluminet 40 I Aluminet 50 I Aluminet 60 I Aluminet 70 I Shade percentage Diffused light transmission Aluminet IC Closed Screens for Energy-Saving Energy saving Aluminet 40 I 40-43% 72% 15% Aluminet 50 I 49-53% 65% 20% Aluminet 60 I 62-64% 55% 36% Aluminet 70 I 70-74% 45% 45% Aluminet I Open Screens provide multiple solutions where both heat-stress reduction and frost protection is necessary. The double-sided reflection screen helps to protect your crop against both midday heat stress and overnight frost. Light transmission parameters were tested according to ASTM-D 1746 & ASTM-D 1494 methods. Aluminet IC TS Aluminet IC 50 Aluminet IC 60 Aluminet IC 70 Aluminet IC 100 Energy Saving Diffused light transmission Shade percentage Aluminet IC TS 43% 94-95% 22-24% Aluminet IC 50 55% 74-75% 46-48% Aluminet IC 60 60% 60-61% 59-61% Aluminet IC 70 70% 45-46% 73-75% Aluminet IC % 0% % Aluminet IC is highly recommended for greenhouses where a high level of energy saving is essential. Tests show that Aluminet s insulation properties contribute significantly to reduced energy consumption. Energy savings tested by the INTRON Quality Assessment Institute in Test no. R on Nov. 8, Light transmission parameters were tested according to ASTM-D 1746 & ASTM-D 1494 methods. Fire retardant parameters were tested according to NFPA 701 regulations.

6 Aluminet O Screens for Outdoor Applications Aluminet 30 O Aluminet 40 O Aluminet 50 O Aluminet 60 O Aluminet 70 O Aluminet 80 O Shade Diffused light percentage transmission Aluminet 30 O 30-35% 79% Aluminet 40 O 39-41% 70% Aluminet 50 O 50-55% 60% Aluminet 60 O 57-58% 56% Aluminet 70 O 69-72% 44% Aluminet 80 O 75-80% 32% Many outdoor crops, such as vegetable and leaf crops, benefit from moderate climatic conditions. Reduction of direct radiation and temperature in summer improves product quality and can save water and fertilizers, prevent some diseases and save disinfection treatments. These screens also provide wind and frost protection and improved humidity control. Light transmission parameters were tested according to ASTM-D 1746 & ASTM-D 1494 methods

7 Aluminet Darkening Screens Aluminet DS Aluminet RDS Energy saving Light transmission Aluminet DS 75% 0.1% Aluminet RDS 70% 0% Aluminet DS & RDS Darkening Screens control daylight hours by combining daylight management and energy saving. This product is highly recommended for all plants that require control of daylight hours, such as chrysanthemum, and is suitable for moderate, cold and other climates. Aluminet Main Features UV RESISTANT DOUBLE-SIDE IR REFLECTION LIGHTWEIGHT AND EASY TO INSTALL RECYCLABLE

8 Crop optimization is a vital issue in today s competitive market. As a result, controlled greenhouse production has gained great momentum in recent years. Climate control, humidity regulation and light are important factors in creating an optimum growing environment. Polysack s sophisticated thermal-screens enable farmers to control growing conditions by creating the optimum environment needed for quality crop production. Our highly qualified engineers, researchers and agronomists ensure cost-effective solutions to the most challenging climatic conditions. Product support and on-site training are provided by our professional field teams. Courses and seminars are held in various languages for growers, consultants and agents from all over the world. Polysack new technologies are implemented by skilled professionals and are supported by stringent quality and engineering systems. The company s quality assurance policy focuses on supply of quality products to its customers - for long-term use - under harsh and diverse field conditions. All the company s activities are conducted under ISO 9002 and EQNet standards. All Polysack products are environmentally friendly Enterprise Drive, Janesville, WI Phone: Fax: Avenue 304 Visalia CA, info@green-tek.com