Sigma Automatic Roof Vent Terra The tall 8 ft roof

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

providing temperature stability for your plants

keeping your plants healthy and disease-free

800 ft³ per hour

6mm Double-Wall Polycarbonate Panels

Sigma Automatic Roof Vent Terra The tall 8 ft roofPlease 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