Community › Community › General Gardening › Sowing and Growing › What to look for when buying a polytunnel › Reply To: What to look for when buying a polytunnel
Thank you Sarah – off- grid, that is very helpful.
I was wondering about the side ventilation, especially in relation to convection currents: With a greenhouse it is normally the top windows that open thus letting out the hot air that has risen in the greenhouse. However if the side opens from the bottom presumably cold air has a tendency to roll in? I can see this being a potential issue if left over night in March, when there may still be just be a frost.
Iif that is the case would it not be better to have the bottom half of the doors covered and the top open? or would that not provide enough ventilation during the day?