The foundation for the cottage can be different — tape, columnar, monolithic, block.
To create a strip foundation, you need to dig a trench into which it is necessary to fill the coarse -grained sand to a certain level. All layers are compacted and watered with water. The finished area at the ground level is covered with a cement, on the top of which the base is laid out. On the foundation on top you need to lay roofing ground.