Greenhouse: Foam panel in GH, 0 by oldmudhouse

oldmudhouse wrote:
I'm heading into my first winter too, and I put foam insulation on the north wall of my Harbor Freight greenhouse. I read that very little light enters the gh from the north anyway, and I'm hoping it will help with some of my winter electric bills. I used 3/4" polyisocyanurate foil-faced foam insulation, but I really wanted 1" thick. If I'd had access to 2" thick foam panels, I would have used them!

Many folks seem to insulate the north wall and the low part of the north roof as well, but I'm going to see how bad it is with just doing the wall for the first winter. I may add some large bubblewrap to the north roof. (There's a lot to sort out the first season with a gh, yikes.)

Here's a pic of the north wall after insulation, and before we finished building the benches: