Greenhouse: Whats in your greenhouse this winter?, 1 by Tropicman

Tropicman wrote:
Well the secret is the 4 inch dead air space,then the tarp wind break knocks the cold wind from it completely,and top that its between my house and the neighbors house,black rubber liner takes in the heat from the sun ,yes it gets below zero here too,it is just well insulated from all the dead air space the roof and the sides have the dead air space,I just went and grab the remote themostat,that tells what the temp. is outside in my greenhouse,its in the 30's outside and still 80* inside the greenhouse.