Apart from the planning stage, architectural design of the house and paperwork in various instances, the very first thing where practical construction begins on the site is the foundation of your future house.
Since the house is usually built not for a year and not for two, but for life, then the basis of your house – the foundation – should be laid strong, for centuries for centuries. After all, it is on the foundation that the whole load of the structure, the severity of the walls, the inter -story floors and the roof are transmitted to the foundation. After all, all this weighs hundreds of tons together. Therefore, when tempting to save on the foundation, do not forget that it is he who is the basis of the house. Let the cost of the foundation be slightly higher, but it will certainly be reliable. It would seem a small defect in the construction of the foundation can turn into its cracking or even complete destruction, and believe that then the cost of restoring and repairing the foundation will be much more expensive than you could save by choosing materials and technology cheaper.
Do not save on the brand of concrete. Especially for the foundation of the foundation itself, its sole. Do not use dubious quality cement, let it be even free. It is best to order concrete at an enterprise that has a reputation and is responsible for the quality of its products.
What kind of concrete brand should be used, the designer should calculate. Usually a brand is taken at least b20.
Also, a disaster may turn into an attempt to save by reducing the depth of the foundation laying. To determine the exact depth of the foundation bookmark on your site, be sure to conduct geological surveys. The cost of such work is not large, but you can protect you from many subsequent troubles.
Further, on the basis of the results of geological studies, the designer will calculate the depth of the foundation.
This depth depends mainly on two factors – the level of groundwater on your site and soil type. And if you lay the foundation above the given level, especially with a high level of groundwater and in the presence of fluffy soils, then you risk it that your foundation will squeeze out of the ground when frosts will come out of the earth.
What kind of power is this that it is able to push out the foundation with the house that weigh hundreds of tons, you ask you? In fact, there is no magic here – freezing, wet clay expands, and unevenly. At the same time, the force with which such clay will press from below the foundation is quite sufficient to destroy the house.
Therefore, always make the foundation according to the calculated values and using quality materials.