i need to expand my coop and make better use of the existing one. i have an L shape coop and run that i built myself over the course of 3 yrs. by adding on each yr. i need to do that again. my coop is 20x20 on the outside and 12x12 inside with 8ft. sides i hope im getting that right. there is a door at the inside of the L on one end and a door on the outside at the other end. the coop itself is 8x12 before it turns into a run. it is flat roofed w/rubber top all the way across. i painted and decorated this yr. right down to molding around the whole roof. looks good i think. i want to make it bigger. i have thought of a dog kennel on the far side coming out 10 ft. down 20 then back in with the 10. i really dont feel like i am able to build it again although that is what i would like because i dont want it to look bad.and i know the dog kennel is not all that great. my coop and run have wire floors and im thinking i can add this kennel with no floor and fashion some sort of top for it then open my run up. will this work in winter? will critters get them? am i missing something?