Well the weather has finally begun to clear up here in Canada. Ive been working on the second floor quite a bit. Now the entire first floor of my earthship is comprised of tires. However i used cob and then adobe to insulate and cover the tires as i live in a colder climate. Instead of using straw bales for the second floor ive decided to primarily use cob. The building aspect of the is hugely speedy and i can avoid potential mold problems in the future with greater ease. Ive found the first floor is a tropical temperature and very moist almost like living in Florida. The only concrete i used so far was for the frame of my 5500 gallon aquarium. Im trying to perfect a siphon system into bio filters and the rear has a valve so i can heat the cement bottom of the tank as needed to keep the temp up if for some reason it chills to much. There is back up electrical heat for when i head to Thailand and Aus but i have arranged for someone to stay there for the month im gone to keep an eye on things.