Foundations
A key element of any house, ensuring the stability and durability of the entire structure.
Every detail matters
Why are they so important?
Well-constructed foundations ensure the stability of the entire building structure, minimizing the risk of settlement and wall cracks. They protect the house from moisture and groundwater, preventing damage and mold growth. Solid foundations increase the durability of a building, allowing it to be used safely for many years.
Our standards
We have created documents indicating to what standard we build houses. This gives you the assurance that every detail of your home will be perfectly done.
Foundation on undisturbed ground
We plant the foundation on stable, undisturbed native soil, ensuring adequate bearing capacity (min. 0.05 MPa), which affects the safety and durability of the building.
Depth of foundation
We place the foundations 5 cm below the ground frost level to protect the building from the impact of frost and minimize the risk of damage associated with the expansion of frozen soil.
Making the primer layer
Before pouring the foundation, we make a base layer of lean concrete on the bottom of the excavation, which stabilizes the ground and facilitates the precise placement of reinforcement.
Waterproofing
We protect foundations with waterproofing (tar paper, bituminous membranes), which protects against the penetration of moisture from the ground, ensuring the durability of the structure and minimizing the risk of damp walls.
Technologies used
Foundation slab
It is used on soils with poor bearing capacity, where there are large differences in ground level or risk of subsidence. The foundation slab also works well in buildings with heavy loads, such as industrial facilities, and where it is important to ensure even load distribution.
Check what the foundation slab consists of
Select a section item by hovering over it to learn more about the technologies we use to build houses.
Native soil
This is the natural, undisturbed soil on which the foundation rests. It should have sufficient bearing capacity to ensure the stability of the building. This soil is tested before work begins to make sure it meets structural requirements.
Compacted sand
A layer of sand that is laid under the foundation or foundation slab. Compaction of the sand increases its load-bearing capacity and stability, ensuring even distribution of building loads and protecting against soil settlement.
XPS insulation
Extruded polystyrene (XPS) used as a thermal insulation layer for foundations or floors on the ground. It is characterized by high resistance to moisture and compression, making it ideal for insulation under foundation slabs and in areas exposed to water and heavy loads.
Reinforced concrete foundation slab
Made of reinforced concrete, it provides solid support for the building. The slab is used on soils with poor bearing capacity or high groundwater levels. Thanks to its design, it evenly distributes building loads over the entire surface, minimizing the risk of settlement and cracking.
EPS insulation
Expanded polystyrene (EPS) is a lightweight and durable thermal insulation material, used under foundations and in foundation walls. It provides effective thermal insulation, protecting the building from heat loss. It is characterized by good resistance to moisture and pressure, making it ideal for insulating floors and foundations on stable soils.
Reflective aluminum foil
It is an insulating layer used in building structures that reflects thermal radiation, reducing energy loss. Typically installed as a supplement to thermal insulation, it helps improve a building’s energy efficiency, especially in roofs and walls. Thanks to its reflective properties, the film helps keep heat inside the building in winter and reduces heat buildup in summer.
Concrete screed
It is a layer of concrete spread on the substrate, providing a base for further floor finishes. It is used to level the surface, improve load-bearing capacity and prepare the substrate for subsequent layers, such as insulation, tiles or panels. It ensures even load transfer to the substrate and stabilizes the floor structure.
Floor
This is the final finishing layer of the floor, which has both aesthetic and functional functions. It can be made of various materials, such as ceramic tiles, panels, wooden planks or carpets. The flooring is responsible for comfort, acoustic and thermal insulation, and resistance to abrasion and mechanical damage.
DON'T FORGET
Knowledge at a premium
What happens if a mistake creeps in at some stage of house construction? Read.

What if the foundation insulation is poorly done?
Mistakes are a part of our lives that we are constantly learning from. There are stages during the construction of a house, such as the insulation of the foundation, where mistakes must be avoided.
Technologies used
Foundation footing
It is mainly used for buildings with light construction and on soils with good bearing capacity. The footing is suitable for single-family houses, outbuildings and structures with basements.
Check out what the footing consists of
Select a section item by hovering over it to learn more about the technologies we use to build houses.
Native soil
The natural ground on the construction site, is the basic layer on which the foundation structure rests. Its thorough examination and proper preparation, including compaction, are key to ensuring the stability and load-bearing capacity of the entire foundation.
Correctly prepared native soil minimizes the risk of settlement and provides a solid base for further foundation layers.
Backfill
A layer of material, such as sand or gravel, used to fill the space around the footing. It plays a key role in providing adequate drainage, which protects the foundation from water and moisture buildup.
In addition, the backfill helps evenly distribute loads and stabilizes the entire foundation structure, increasing the durability and strength of the building.
Lean concrete
A lower strength layer used as a base for footings. It is used to level and stabilize the ground, providing a solid base for the foundation structure.
In addition, lean concrete protects against ground settlement and creates a moisture barrier, which supports the durability and stability of the entire structure.
Foundation footing
A key load-bearing element of the building, which distributes the loads of the structure over a larger area of the ground. Made of concrete reinforced with steel bars, it provides solid and durable support for the building’s load-bearing walls.
Thanks to its design, the footing minimizes the risk of settlement and cracking, guaranteeing the stability and longevity of the entire structure.
Horizontal insulation
A key element to protect the building from capillary rise of moisture from the ground. Installed on footings, it creates an impermeable barrier that protects walls and floors from moisture.
By using horizontal insulation, the durability of the structure and the comfort of the building are increased, preventing moisture problems such as mold and mildew.
Foundation wall
A structural element of a building that transfers loads from higher parts of the structure to the footings. Made of concrete, concrete blocks or bricks, it provides stability and strength to the entire structure.
The foundation wall also protects the interior of the building from moisture and helps with thermal insulation, which increases the comfort and durability of the building.
Wall (load-bearing layer)
A structural element that transfers loads from the roof and upper floors to the foundations. Made of solid materials, such as concrete, brick or concrete blocks, it ensures the stability and durability of the entire structure.
The load-bearing layer of the wall must be properly designed and constructed to guarantee the safety of the structure and the longevity of the building.
Bucket film
A specialized protective layer used around foundations to provide effective protection against moisture. Thanks to its piped structure, it creates a ventilation space that allows water to drain and prevents moisture from accumulating at the foundation walls.
The bucket membrane also protects the insulation layers from mechanical damage, increasing the durability and effectiveness of the entire foundation system.
Thermal insulation
An element that provides protection against heat loss and the effects of low temperatures on the building structure. Used externally on the foundation walls, it effectively prevents the cold from penetrating into the interior, which improves the energy efficiency of the entire house.
Thanks to thermal insulation, the foundation is protected from harmful thermal influences, which increases the comfort of the building and reduces heating costs.
What do we look for when selecting?
Type of soil
Analyze the bearing capacity and stability of the native soil to provide adequate support for foundations. The selection of the type of foundation depends on the quality of the soil and its ability to support loads.
Depth of foundation
Foundations should be planted below the frost zone to prevent them from being damaged by ground movements caused by freezing water. In Poland, the frost depth ranges from 80 cm to 120 cm.
Drainage layer
Using compacted sand or gravel under the foundation provides adequate stability and facilitates water drainage. A drainage layer helps prevent moisture from accumulating under the building.
Reinforcement of the foundation
The performance of proper foundation reinforcement, including in foundation slabs, affects the strength of the structure and its resistance to tensile and compressive forces.
Moisture insulation
The use of XPS or EPS insulation prevents the penetration of moisture from the ground into the foundation, which protects the building from moisture and water damage.
High-quality concrete
For the construction of foundations, use concrete of the appropriate grade (such as B25 or higher) to ensure the durability and resistance of the foundation to loads and weather conditions.
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knowledge base
Read more about building a house

What if the foundation insulation is poorly done?
Mistakes are a part of our lives that we are constantly learning from. There are stages during the construction of a house, such as the insulation of the foundation, where mistakes must be avoided.