What a Foundation is to make for the house from foam blocks

Choosing a Foundation for a house of foam blocks, you need to pay attention to many factors — the level of groundwater, type of soil, the weight of the structure with all loads, as well as the depth of soil freezing.

Instruction

1. The stability of the Foundation and the house built on it, depends primarily on ground conditions. To determine the type of soil is best to hire skilled professionals who will take samples and prepare a conclusion. However, this procedure requires material costs, therefore, it is used seldom.
2. You can drill on a plot of several wells to a depth of 2-2,5 m and try to determine the type of soil. If the groundwater level below 2 to 2.5 m, the soil is considered to be weakly heaving, the depth of frost penetration is not more than 1 m. typically, this soil constructing a monolithic ribbon of concrete blocks, it is also possible to bookmark low-depth of the strip Foundation.
3. When the water table is located high enough, the soil is considered to be heaving. In this case, the construction of strip Foundation without proper drainage systems to drain water will be ineffective. The creation of high-quality water drainage is fraught with significant material costs, the most suitable Foundation for this soil becomes a monolithic slab. It can be designed as a raft Foundation with ribs or in the form of a conventional monolithic plate with a thickness of up to 0.4 m under the whole building.
4. Sometimes the upper soil layers are weak, but at a depth of 1.5-2.5 m is a solid and reliable ground. In this case we can neglect the swelling at this depth and to build the Foundation of the recessed belt with base for dense layers of soil.
5. However, note that the strip Foundation will be subjected to lateral forces of frost heaving, acting on its wall at a tangent. If the house of foam blocks will be easy enough lateral force to move it vertically. Such processes adversely affect the walls of the house.
6. Given the small weight of the blocks on soft ground is recommended to build a pile pier Foundation. Foundation piles are placed in a hard soil at a depth of 2-2. 5 m. However, note that this design is perfect for buildings with a small base, and are minimally susceptible to deformation. When you use a pile Foundation for houses of foam blocks is to be cautious, to carry out accurate calculations and to reduce the distance between the posts to a minimum.
7. If you can not do without a slab Foundation, but the cost is too high for you, you should consider the option of construction of the Foundation slab with ribs, it will slightly reduce costs.