Okay, I have been wanting to build a cob house for a while now, and my land is perfect since there is a crazy amount of clay in the soil...but that is also the problem because any water I get stays...so I've been told cob is completely infeasible. But...I was researching ancient pottery techniques and found that the natives made their pots and bowls out of basically cob, then baked them to make water tight vessels. So, my question is...theoretically speaking, could you fire the walls of a cob house to add to the water resistance and durability of the cob?