Interior Row Cover Options for Hoophouses
Interior row covers (also known as floating row covers) provide an extra layer of insulation for crops grown in the hoophouse during the cooler months. The interior cover system is comprised of two components: the cover and the frame.
The cover should be removed when the sun is out, and returned back over the plants when it is cloudy-doing this will help trap in heat from the daytime. There may be some sunless days when the cover will not need to be removed at all.