Naturally Ventilated Semi-Controlled Greenhouses

We will harness the power of natural ventilation to regulate the temperature in our greenhouses. Utilising wind pressure, warm air is expelled through vents while cooler air enters through side openings, creating a vacuum effect that draws fresh air into the sidewall vents.

This method will be especially effective in Port Elizabeth, known as "The Windy City" for its consistent winds, making it an ideal location for naturally ventilated greenhouses.

Natural ventilation is a cost-effective and energy-efficient solution, offering improved indoor air quality, significant cost savings, and enhanced sustainability.

The trend toward taller greenhouses boosts ventilation by increasing the buoyancy effect, moving warmer air higher above the plants and providing air buffering to reduce quick temperature changes.

Our greenhouses will stand 6 meters high with a 5-meter gutter height and feature sidewall and roof openings for optimal air circulation. Whether using sidewall ventilation alone or in combination with roof openings, we will ensure maximum airflow and a stable growing environment.

We will utilise 200-micron long-life white greenhouse film, to maintain optimal light transmission and diffusion. This innovative material also features anti-drip, anti-dust, and infrared properties, all of which contribute to enhanced crop yield and consistent growth conditions.

Additionally, high-quality white UV-stabilised weed matting will be employed for floor covering. This matting controls weed growth, regulates ground temperatures, and ensures moisture retention.

By reducing and eliminating reliance on herbicides and other chemicals, it promotes sustainable practices. Its 100% recyclable nature at any stage of use underscores our commitment to environmentally friendly practices, fostering a cleaner, greener approach to modern agriculture.

Combining these advanced materials will enhance both the productivity and sustainability of our greenhouses, ensuring we deliver high-quality produce year-round.