My DH and I are going over plans for our coop ( ) and were wondering about the foundation. Its going to be 5x12 footprint with a 4x5 henhouse for 5 hens. It will have a slanted roof that covers the entire setup. As a matter of fact its similar to the one that won the last coop contest https://www.backyardchickens.com/web/viewblog.php?id=32956 My question is what do we need to do to keep it from lifting up on windy days? I don't mean a breezy day but every few years we we get 45 + mph winds. With such a roof I worry it would lift. Haven't read much about secure foundations. Our plan is a cement paver base covered with 6 inches of sand. We were trying to figure a way to attach the base to cement blocks (they'd surround the cement pavers) as we are also trying to lift the wood base above ground to prevent rot and be deep enough for all the sand. Our soil is very hard clay in the area we putting the coop so really tough to dig in it. We were thinking of securing the 4 corners of the wood base into the ground through the cement back with something. Any ideas or is it not necessary? BTW we do have 8ft high bushes around our suburban backyard that may help high winds to some degree. Thanks in advance for your ideas!