Sigma Automatic Roof Vent Terra 6mm Double-Wall Polycarbonate Panels

6mm Double-Wall Polycarbonate Panels

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

and the plants you would like to cultivate

switch to fan-only mode to keep air circulating evenly — a key step in preventing mold and hotspots around your plants

Sigma Automatic Roof Vent Terra 6mm Double-Wall Polycarbonate PanelsPlease 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