Greenhouses

I don't know about where you live, but way up here in the north we can't grow tomatoes, peppers, beans & squash without some protection. I've been researching greenhouse design. The standare greenhouse dsign we are used to seeing was invented in Holland for mild maritime areas, not inland cold places where conserving energy is important not just raising the temp a few degrees. If you are interested I'll share a little of what I've found out.
BJ Broen