Sigma Automatic Roof Vent Terra switch to fan-only mode to

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

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

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

Complete set

Sigma Automatic Roof Vent Terra switch to fan-only mode toPlease 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