Greenhouse: Bubble Wrap the Greenhouse for Insulation, 0 by beclu727

beclu727 wrote:
I have used the 1 inch bubble wrap on the inside of my small greenhouse (6x8) for 2 years now. I have a small space heater in the GH and even when the outside temp is in the 20s it stays in the low 50s inside. Before adding the bubble wrap, the heater couldn't keep up and the temp would drop to low 40s,sometimes high 30s. Yours looks about what mine does. Its hard to keep the BW in place. I'll need to replace mine for this coming winter as the humidity has it all mildewed.