We have an existing farm house that we are tearing the floor out of in one of the rooms to build a basement room. Just a place where we can go to be cool in the summer time. There is a crawl space with a 3' concrete foundation, but we would like to dig it 5' deeper and use earth bags as the walls for this room. We aren't digging near the foundation because we don't want to disturb that soil, but we are coming in to create a smaller room and would like to use earth bags and cob. Is this possible in this situation? We live in Kansas and it can get very humid in the summer. Our 100 year old storm shelter that we currently have seems to always be moist in the inside and it is made of concrete. Will we have the same problem with this construction method? We also want to have a cob floor in the basement. Is this possible? We are new to building with this type of material so if anyone could help us out we would appreciate it. We are open for all cheap suggestions. Thanks all!