Dusty, a quick search found this cork product;

http://images.google.com/imgres?imgu...3Doff%26sa%3DG

A bit long but it should get you there. Bubble wrap, foam or cork tape
is probably your best remedy, at least that I can think of.

Barrels of water in your greenhouse will smooth the day/night swing.

Actually a clear plastic sheet hung about one inch inside your GH will
be a good insulator if the bottom is sealed to the groung to prevent
heat pumping.
Joe T


On Feb 17, 12:04�pm, Dusty wrote:
I put up a used Aluminum frame greenhouse last spring and this is my first
experience with this type. (My other one is wood framed) Now that the
temperatures are dropping into the single digits my frame looks like the
inside of a never defrosted freezer. *My question is there any way to
prevent this?