My husband is building a playhouse style coop for our first chickens. The henhouse will be double-walled, insulated, caulked, etc and should stand up to Wisconsin winters. The attached run is protected with half-inch hardware cloth and a full roof. I've noticed in our recent rains that the floor of the run gets wet during storms in spite of the roof. There's one small puddle in the middle and otherwise it's only damp. When the chickens are living in there, I plan to use pine shavings on the floor which will obviously absorb dampness. The girls can clearly retreat to the henhouse during bad storms. I'm wondering how wet is too wet in the run area? Will the damp pine shavings be detrimental to their health? Or will they scratch it up and air it out for me? Is it wise to add plexiglass to the bottom of the run area to keep it more dry? Any comments appreciated! Cindy in Madison, Wis.