Repair floor

What is the best insulation for floors: compare, choose the best material

What is the best insulation for floors

"Keep your feet warm," - says the ancient,assuring that the head position zone ambient temperature must remain cool. In reality, housing, located on the ground floors of multi-storey buildings and country cottages, the floor temperature is often 2-3 degrees lower than that measured at the level of the average human height. Cause: A wrong insulation for floors and errors in the calculation of the thermal insulation layer. It is also possible that the observed violation of technology equipment of the lower floors insulation.


  • List of requirements for the insulant
    • Insulation for the floor and his strength
    • Performance dates insulation
    • Comparison of thermal properties
    • Weight insulation - a significant criterion
    • Focusing on the effect paroprovodyaschy
    • We are assessing the safety of insulation for floors
  • Bottom line: choose by comparing

The head of the list of causes of heat leakagefloor surface illiterate selection of heat-insulating material. He justified mainly by lack of knowledge of the operational characteristics and technical characteristics of a type of heater. Should be taken into account before to give preference to a certain type of insulation material:

  • conditions of the forthcoming operation;
  • temperature and subgrade condition, the underlying foundation or basement accommodating;
  • stable or periodic ground water level, if any;
  • the likelihood of biological effects, the occurrence of destructive fungus damage by rodents;
  • insulation work with basic materials.
Warming of the floor is performed under this scheme

Warming of the floor by means of a heat-insulating material is carried out under this scheme

Most often the choice of material for floor insulation in an apartment or a country house ownersoriented on advice of friends, forgetting about the differences in the working conditions of the thermal insulation layer. However, temperature, load degree of ground moisture affect the long-term material services, to preserve the structure and indirectly on the insulating properties.

So the question is reasonable given by future users, "a better insulation for the floor?", The answer is ambiguous. He can only rely on the specifics of a particular structure.

List of requirements for the insulant

In an extensive series of thermal insulation materials forequipping the lower floor structure the most popular are the practical low-cost mineral wool and featuring a high value expanded polystyrene. Often, owners of apartments and suburban mansions prefer cheap efficient glass wool. In addition to the difference in price they have differences in the technical characteristics and the inherent properties of each of the heaters. Used to increase the heat engineering floor housing material should be characterized:

  • high strength parameters as well as the floor is subjected to maximum load;
  • the maximum periods of service necessary for the operation of the material, the insulation the most conservative, rarely updated floor surface;
  • excellent insulating properties that reduce heat loss to a minimum;
  • weight thermal insulation material;
  • low levels of moisture absorption;
  • paroprovodyaschy effect;
  • insulation resistance to fire;
  • security and maintenance of a healthy environment;
  • the usability of the material, affecting the terms of its styling and consumption.

An objective comparison of the technical data and the specific properties of each of the materials will help determine the choice of insulation for floors.

Foam insulation in the unit design floor insulation

Extruded polystyrene foam in a simple system of floor-slab

Insulation for the floor and his strength

According to the criteria of strength holds leading positionspolystyrene foam, obtained by extrusion technology. Thick peculiar structure of the material can withstand the maximum load with little weight. Unlike the glass and rock wool is not brittle polystyrene foam. His no problems and unnecessary losses can be cut into elements of any shape and size required for placement in areas with original architecture. According to the parameters of the insulation strength of the staple fiber is ahead of mineral wool, which are used for the production of natural igneous rocks.

Democratic insulation for floors - glass wool

Fiberglass - budget insulation for floors

Performance dates insulation

they depend on the reliability of the manufacturer and the timingprovided guarantees. Equally important are the operating conditions. Mineral wool, for example, too high evaporation under constant exposure to water, and when the temperature is exceeded can lose structural relationships exfoliate or crumble. Extruded polystyrene is excellent work in difficult conditions, without losing the original height of the technical qualities. Because polystyrene - the best insulation for underfloor heating and the most rational option for arranging plinths, basements, foundations, located in the area of ​​groundwater flow, and combined with their lower floors.

Comparison of thermal properties

By the criteria of heat preservation, the entire rangeProducts designed for floor installation, in the original state is equally effective. However, the moisture-protected cellular structure of expanded polystyrene ensures the stability of the indicators. Glass and mineral wool have a fibrous structure, they can absorb moisture. And water, being an excellent conductive medium, increases the thermal conductivity, contributing at times to reducing the insulation characteristics by 15-20%. And, fibrous heaters absorb moisture from the enclosing soil, adsorb it from the finishing and building materials, do not resist the diffusion of vapors.

Most often, for insulation of building structuresproduction of glass fiber or mineral vytoy, property owners have to install ventilation equipment and air conditioning systems. So the savings due to the low price of this type of insulation often becomes apparent.

Weight insulation - a significant criterion

This is a strong argument for those who do not wantspend surplus funds for the construction of a strong foundation. The easiest polystyrene enables true when calculating the layer of material power to significantly reduce the construction budget. Moreover, the heavy weight of the mineral wool and staple fiber increases the cost of transportation and the cost of expensive manual labor.

Expanded polystyrene - hard durable lightweight insulation for floors

Extruded polystyrene - hard most durable and lightest insulation for floors

Focusing on the effect paroprovodyaschy

Cotton wool of genuine organic or glasspassed steam arising in the process of living. This quality is favorable for warming log houses and buildings from a bar, which is a priority paroprovodyaschy optimum effect. Warming of the wooden buildings and truss polystyrene is not recommended construction standards, as it will eliminate the main advantage of wood. Priorities of mineral insulation material complemented framing one side of the insulation paper impregnated with flame retardants prevent burning and stiffening.

Installation and insulation of the system "warm floor" in the wooden house more often precedes the laying of polystyrene under screed

Installation and insulation of the system "warm floor" in the wooden house more often precedes the laying of polystyrene under screed

However, if selected as the main systemheating design "warm floor" installation polystyrene is quite acceptable. Laid the insulation under the floor screed and it is made of non-combustible materials. That is, the flame access to the thermal insulation material is completely excluded. Because many owners of wooden cottages equip the house of wood in this way. This is the only option that allows you to use the space, completely hide the heating equipment economically.

We are assessing the safety of insulation for floors

Expanded polystyrene, released leadingproducers on the basis of the test receives hygiene certificates, convincing in its security. They only produce toxins in the combustion process, which is characteristic of virtually all materials. But under normal operating conditions, violations of the sanitary-epidemiological norms are observed. In the production of phenol-formaldehyde resins are used mineral wool and glass wool insulation. With the destruction of the structural links data insulating materials can give off even and silicate dust.

Bottom line: choose by comparing

By comparing the properties of the most popular typesinsulation for the floor, can correctly assess and find a balance between the advantages and disadvantages, to learn and understand how to choose a heater to the floor that meets the requirements of the owner and the corresponding operating conditions. After weighing the pros and cons, you need to choose a material with a valid list of priority for you personally consumer qualities. In this way the selected material will create a comfortable environment in the building, will allow to achieve a significant economic impact in the heating season.

Like this? Share it in social. NETWORKS

about the author