Saturday, September 8, 2012
Our little house is built on one course of cinder block sitting upon two slabs of four inch cement that is laid over gravel filled mountain stone. Half of the foundation is laid over undisturbed sandy loam and sandstone. The other half was about a foot lower and so we compacted soil and small rocks to bring it up level. All of the rock and mountain stone was pulled out of a low exposed area about fifty feet from the house. Inside the foundation we poured a thin coat of concrete in most of the area to act as a barrier. We will still lay a vapor barrier but felt the extra thermal mass of cement would be nice under the house. All of the block is cement filled and we placed threaded rods into some so as to connect to the wood of the house. Inside the block we placed ridged foam in a hope of insulating the foundation and holding temperature inside better.
As you can see in the photos we had to shim the bottom boards of our house to make it all level. This is mostly due to my lack of experience with pouring a foundation and making it level. We will have piers about eight feet out from the house on the East to allow for the deck beams to rest level.