The plinth is the lower part of the outer wall of the house, built on a foundation and designed to preserve the walls from the destructive effects of humidity. A house without a socle is exposed to the risk of mold infection and rotting, may lose the ability to resist colds and increase heat exchange between the inner rooms and the street.
One of the indisputable conditions is the strength of the socle, because it weighs the weight of the walls of the house. That is why the materials used must be of high quality, characterized by frost resistance, low water resistance and pressure strength.
The construction options for the socle are three:
- Outgoing - goes beyond the wall. This option is justified in two cases - it is part of the design of the building( aesthetically, it is more advantageous), or there is a need for enhanced insulation of the basement floor. It must be provided with a slope or groove for water drainage.
- Standing with the wall - an unpopular now option because of the lack of useful qualities.
- Recessed on a 6-cm wall of the house, the most optimal when building a house. It has a number of advantages: savings in construction, protection of the joint of the base and the wall, which ensures the safety of the waterproofing layer, the absence of an indispensable condition for ensuring the discharge of water.
Width of the base
To select the overall width of the socle, it is worthwhile to refer to the building design drawing to determine the material that will be used to build the walls. For example, for gas-silicate bricks( commonly known as foam concrete) with a side dimension of 600 X 300 X 200, the thickness of the masonry should be 30 cm, and if in the future additional wall warming is planned - then the width of 38 cm is what you need. But when using a brick as a decorative element over foam blocks, the thickness increases to 60 cm.
The height of the socle
The question of where the socle ends is still controversial. The most reliable option is to determine the altitude based on the maximum number of fallen snow in a few decades. The base, calculated with this simple technique, will protect the walls from the effects of capillary moisture, thereby increasing the reliability and durability of the constructed house.
But basically the height corresponds to the level on which the floor of the first floor of the building is located. This rule also applies to houses with a basement floor.
Designers usually prefer the high, as it gives the house lightness and elegance.
Construction of a recessed brick plinth on the ribbon foundation of reinforced concrete.
( The further instruction is intended for construction on an already prepared base.)
- Setting of corners when erecting the plinth.
One of the most important rules for laying the socle is the correct angulation, because incorrectly exposed corners will lead to further curvature of the walls and, accordingly, marriage in building the building.
The simplest method is as follows:
In all corners on a dry put a row of bricks, determining the width of the planned base. Angles are set according to the level.
Measure with tape or twine lengths of all sides and both diagonals - the dimensions must match up to centimeters and be accordingly equal.
It is also worth checking the future walls for possible curvature, using the same twine on the inner side of the line from corner to corner.
Waterproofing of the upper surface of the foundation.
Insulation is necessary for additional protection of the plinth from groundwater.
Two layers of roofing felt are spread on the foundation in the following ways:
- for bitumen mastic or preheated bitumen;
- joining the burner, treating the surface of the roofing material.
You can use rubastast, glass ruberoid( glass isole), euroruberoid.
Basement made of bricks
After setting the angles, it's time to start laying the plinth. To create it, usually a brick is cemented with a cement-sand mortar. For construction only full-bodied red brick is used.
It is advisable to start the laying at the corners, then place the rows opposite each other on one side with the thickness of the applied solution somewhere 20-25 mm.
The plumb line verifies the accuracy of laying a vertical surface after 3-4 rows of bricks.
After the final check of the corners, the wall masonry begins. To ensure that the row is flat, a thick fishing line stretches between the two corners.
The minimum height is at least 4 stacked rows, it is possible to finish in the form of natural stone, finishing tiles or siding.
If there are basement rooms at the house - in each side of the socle leave ventilation holes at a height of 10-15 cm from the soil size from 7 x 25 to 15 x 25 cm. In case of exceeding the length of the building 3 meters, the outlets come in increments of 2.5 metersand covered with nets or small grids.
Waterproofing of the base
To protect against penetration of moisture, it is necessary to lay waterproofing materials by drawing a distinction between the base and the brick wall, for example, a ruberoid folded in half for cheap construction. Of course, it is not necessary to manage only them, the choice of materials for isolation is now quite extensive. Double waterproofing is necessary in order to protect the house not only from the external effects of the elements, but also from the influence of groundwater on the foundation.