Greenhouse: DG just bought me that Greenhouse., 0 by stressbaby

stressbaby wrote:
This is just insulating the foundation. A 1-2" thick styrofoam layer is placed just outside the foundation to insulate it from the cold ground. In this pic, see the blue stuff?

I suppose whether you do this depends upon how much heat you need and to what extent you will use the surrounding earth as a "heat sink." The more you insulate it, the greater the heat retention but the less the surrounding earth will moderate your temperatures. For you it may be 6 one way, half dozen the other, if you don't need much heat.

I've never seen pics of a "sunken" HFGH. If you do it, post pics, please. Hope the links were (or will be) helpful. SB