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

By Admin | Garden And Buildings / Construction And Repair
30 May 2016

«Keep warm feet" - says the ancient, assuring that in the area of ​​the head temperature of the environment must remain cool.Really 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 an average growth of man.Cause: A wrong insulation for floors and miscalculation power insulation layer.It is also possible that the observed violation of technology equipment of the lower floors insulation.


heads the list of causes of leakage of heat through the floor surface illiterate selection of insulation material.He justified mainly by lack of knowledge abo

ut the performance characteristics and technical characteristics of a type of insulation.Before you give preference to a certain type of insulation material should be taken into account:

  • upcoming operating conditions;
  • temperature and condition of the subgrade, the underlying foundation or basement accommodating;
  • stable or periodic ground water level, if any;
  • probability of biological effects, the emergence of the destructive fungus damage by rodents;
  • insulation compatibility with basic materials.
Thermal insulation of the floor is performed under the scheme
floor insulation using heat-insulating material is carried out under this scheme

In most cases the choice of material for thermal insulation of the floor in an apartment or a country house owners orient the advice of friends, forgetting about the differences in operating conditions, the heat-insulating layer.However, temperature, degree of load, ground moisture affect the long-term service life of materials, 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 a heater ↑

In an extensive range of thermal insulation materials for the construction of the lower floors equipment the most popular are the practical and inexpensive mineral wool has a higher cost of expanded polystyrene.Often, owners of apartments or suburban mansions prefer cheap efficient glass wool.Besides the difference in price they have differences in technical characteristics and inherent properties of each of the heaters.Used to increase heating engineers floor housing material should characterize:

  • high strength parameters, as the floor is exposed to maximum load;
  • maximum period of service necessary for 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 moisture absorption;
  • paroprovodyaschy effect;
  • insulation resistance to fire;
  • security and ensuring a healthy environment;
  • usability of the material, affecting the terms of its styling and consumption.

objective comparison of the technical data and the specific characteristics of each of the materials will help determine the choice of the insulation for the floor.

Foam insulation in the unit design floor insulation
extruded polystyrene in the simplest system, floor-slab

Insulation flooring and its strength ↑

In strength criteria forefront takes Polystyrene foam produced by extrusion technology.The dense structure of the original material with little weight can withstand the maximum load.Unlike the glass and rock wool polystyrene foam is not brittle.His no problems and unnecessary losses can be cut into elements of any shape and size required for installation in rooms with original architecture.Specify insulation strength of staple fiber ahead of mineral wool, which are used for the production of natural igneous rocks.

Democratic insulation for floors - glass wool
Glass wool - insulation for floor budget

lifetime of insulation ↑

they depend on the reliability of products and terms of guarantees.Equally important are the operating conditions.Mineral wool, for example, too high evaporation under constant exposure to water, and when the temperature may 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 everything plinths, basements, foundations, located in the area of ​​groundwater flow, and combined with their lower floors.

comparing thermal qualities ↑

By criteria retain heat the entire range of products for arrangement of the floor, in original condition equivalent effective.However, protected from moisture polystyrene cellular structure provides stability indicators.Glass and mineral wool are fibrous structure, can absorb moisture.And water, being an excellent conductive environment increases thermal conductivity, contributing to sometimes reduce insulating characteristics by 15-20%.Moreover, the fibrous insulation to absorb moisture from the enclosing soil absorb it from the decoration and building materials, do not resist vapor diffusion.

most often at warming of constructions of fiberglass or mineral vytoy, property owners have to install ventilation equipment and air conditioning systems.So the savings due to the low prices of this type of insulation often becomes apparent.

weight insulation - a significant criterion ↑

This is a strong argument for those who do not want to spend surplus funds for the construction of a powerful foundation.The easiest polystyrene foam enables the calculation of true if the layer thickness of the material significantly reduce the construction budget.In addition, 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 foam - the most durable and rigid insulation for the easiest floor

Focusing on paroprovodyaschy effect ↑

from natural organic cotton wool or glass passed 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.Thermal insulation of buildings and wooden truss polystyrene is not recommended construction standards, as it will eliminate the main advantage of wood.Priorities mineral insulation material supplemented by equipping one of the sides of insulation paper impregnated with flame retardants prevent burning and stiffening.

Warming of the floor heating in the wooden cottage
Installation and insulation of the system "warm floor" in the wooden house more often precedes the laying of Styrofoam under the screed

However, selecting as the main design of the heating system "warm floor" Styrofoam styling is quite acceptable.It fits the insulation under the floor screed and it is made of non-combustible materials.That is, access to the thermal insulation material fire is completely eliminated.Because many owners of wooden cottages equip the house of wood in this way.This is the only option that allows economical use of space, completely hide the heating equipment.

evaluated the safety insulation floor ↑

Styrofoam issued by leading manufacturers on the basis of the test receives hygiene certificates, convinced of its safety.They produce toxins only in the combustion process, which is characteristic of almost all materials.But under normal operating conditions violation of sanitary-epidemiological norms are observed.In the production of mineral wool and glass wool insulation used phenol-formaldehyde resins.With the destruction of these structural links insulating materials may produce more and silicate dust.

Video: how to choose the right insulation ↑

wishing to choose wisely insulation material for a country house a lot of useful information will view video:

Bottom line: choose comparing ↑

comparing the properties of the most popular types of insulation for the floor, can correctly assessand to find a balance between the advantages and disadvantages, to learn and understand how to choose a heater for a floor that meets the requirements of the owner and the corresponding operating conditions.After weighing the pros and cons, you should choose a material with a valid list of priority for you personally consumer qualities.In this way, the material chosen will create a comfortable atmosphere in the house, would lead to substantial economic benefits during the heating season.