Suggestions please to make this cold weather proof?

[attached_mama]

We are planning to make a coop (for 4-6) out of our old swing set, like this:
http://jojochooks.wordpress.com/2010/01/19/the-girls-have-new-home/ But we live in PA so it needs to be more weather proof. Suggestions, please?

 

[bigstack]

Im at work and can't see the pics. But chickens are good to ZERO as long as they are not wet or in a draft!

Good Luck and God Bless!

 

[crazyhen]

Looks good for the summer. You will need to have a wall put up under the front for winter to keep them out of the wind. Drafts that are cold and damp are terrible. They can take a large amt of cold but not drafts. Enjoy your hens. Gloria Jean