One Straw's Hoop House Barnraising

One Straw Rob documented his hoop-house barn raising last month. I'm totally jealous. How useful are greenhouses? You can also build hoop houses for your chickens. You can grow fresh fodder for your cows.  In short, just about anything you can't grow in winter because of the cold can be moderated by a hoop house + thermal mass. One Straw Rob is in Wisconsin (it get cold there) so he needs the added edge of a compost-heater that uses mesophilic bacteria to generate heat. That bastard---making us all look bad.