Working on making my little polycarbonate greenhouse ready for winter, 7b/8a. Last year I used solar pool cover bubble wrap to insulate, as well as 2 heat sources, waterbank, and a circulation fan.
It was successful but it was a fairly mild winter. A few stretches below freezing, including a couple of consecutive days that didn't get over 30f.
I'm thinking about adding foil sided foam insulation panels along the bottom walls but not sure if the reflective side should face inwards or out.
Tldr: foam insulation reflection panels, face inwards or out?
by SammaATL
1 Comment
I have used a similar setup for years. Foil side in, as you want to reflect or “keep” the heat in.