Greenhouse insulation

[Gordonmull]

Hi folks

Hope I can draw on your experience again. Is it worth shelling out for greenhouse insulation for a cold greenhouse?

I'm overwintering the following in containers - potatoes, carrots, spring onion winter lettuce.

Cheers

Gord

[Gordonmull]

[chriscross1966]

Certainly when I had a smaller GH it was, but it helps more if you are giving it at least a little hear... but watch out for humidity, botrytis can be a bugger...

[davejg]

If you are talking about bubble insulation, as chris says its better with heat. In my 8x6 polycarbonate its only worth 2 degrees c on its own, with just a small coldframe heater (paraffin) it was more like 5 degrees difference.