Wood foundations may create a warmer basement in cold weather and may be more cost effective for isolated building sites where concrete is unavailable or would be expensive to transport. However, wood in contact with soil is more prone to issues long term. The primary issue is with moisture which causes the wood to rot, grow mould, and loose its strutural relability. Controlling the surface water around the foundation is critical if your home has a wood foundation. If you are considering buying a house with a wood foundation in Alberta, you should have it analyzed by the FXC team of home inspectors & structural engineers to determine an estimated remaining service life, and be sure to correct all surface drainage issues before purchasing.