Sigma Automatic Roof Vent Terra providing ample space for various

providing ample space for various crops

This unique system is designed for gardeners of all levels or anyone who wants to grow their own food and bring a slice of nature into their home

The tall 8 ft roof height combined with the end-to-end ventilation ensure that your plants will thrive

space-efficient design perfect for commercial growers

keeping your plants healthy and disease-free

Sigma Automatic Roof Vent Terra providing ample space for variousPlease note: this window only fits Sigma Greenhouse models. Supercharge your Sigma Greenhouse with the Planta Sigma Automatic Ventilation Window. Improve air circulation by bringing in the fresh outside breeze, keeping your plants healthy and disease free. The automatic ventilation window is heat activated, which requires no electrical power or programming. This function ensures that hot air escapes during the day, preventing shrivelling or withering