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Mineral wool or foam: the pros and cons of mineral wool in comparison with foam

Mineral wool or foam

The ideal building material, as well asperfect insulation - a dream has not yet been embodied in a tangible reality. Numerous attempts to create a high quality insulator to equip the building structures have not yet led to a productive outcome. Wishing to build suburban housing or city apartment layer of insulation still have to choose carefully weighing the disadvantages and advantages of each of the strong materials. Putting in a certain amount of negative and positive qualities, the consumer decides whether he will approach or mineral wool is better to buy a practical light foam.


  • Criteria for evaluation of mineral wool and foam
  • Mineral wool and its characteristics
    • Water-repellent properties and load-bearing capacity

  • Qualitative indicators foam
    • Operational Safety
    • Light weight and easy installation

The work of engineers and chemists, hard-workingon the invention impeccable insulation material, yet it can not be considered counterproductive. The new generation of heaters differs significantly from historical predecessors by a considerable number of technical indicators. In addition to improving the technical characteristics of the area development extended to ensure ease of installation, increased durability. Successes were, but to choose and evaluate the benefits and negative aspects still need.

The thickness of the material with the same thermal insulation values

Power layer of mineral wool, foam and other materials with equivalent insulation characteristics

Criteria for evaluation of mineral wool and foam

Buyer, ie the owner of a residential or commercial property under construction of a country house or a small garden are interested in such quality materials for insulation, such as:

  • Minimal operational thermal conductivity does not change depending on the conditions of difficulty;
  • durability, lack of thermal expansion, preservation of structural links when exposed to moisture;
  • good job in the high and low temperature operation;
  • low levels of moisture absorption;
  • operational longevity;
  • negligible proportion of high insulation parameters;
  • the possibility of rapid installation in any seasonal period, ease of installation;
  • resistance to biological attack;
  • security,
  • substantiating the likelihood of use for thermal insulation of housing.

Comparative evaluation of mineral wool and foam for each of the above points will enable a rational approach to the problem of choosing the best material.

you need to decide in which of the indicators for the specific customer are fundamental for the correct orientation of a heater selection.

Mineral wool and its characteristics

Called builders "mineral wool"rock wool - insulation material with a fibrous structure chaotic. Get it by melting of igneous and metamorphic rocks, metallurgical wastes and mixtures thereof. Features and genesis of rocks, used in the manufacture of insulation, determines the main advantages of the mineral insulation:

  • resistance to fire,
  • resistance to biological negativity,
  • low thermal conductivity.

The most common and popular instone building overlooking the insulation is basalt wool and mats, made on its basis. Stone insulation can be made of slag, diabase, porphyry, and other minerals gabbro consisting of silica, including magnesium and iron oxides.

Structural building mineral wool

The unique structure of stone wool

Mineral wool insulation does not burn, does not melt evenat a temperature of 1000 ° C, have the ability to prevent the spread of fire. Wadding of stone - a great barrier, to stop the passage of heat. However, in a moist environment of mineral wool may lose its characteristics. The porous insulation passes pairs and can absorb moisture. By increasing the amount of water in the material is reduced thermotechnical priorities as water, which is an excellent conductor of heat loss contributes. But thanks to the property to pass the evaporation of mineral wool is actively used for arranging homes of wood. After all, the benefits of natural organic nature is the ability to spontaneously withdraw household pairs of contour of the building, and any other type of heater is able to deprive one of the central timber of its merits.

Water-repellent properties and load-bearing capacity

In a series of stone heaters highestwater repellent different basalt wool. She misses a minimum amount of moisture, because the material often used for thermal insulation of swimming pools, saunas and baths. With its help, perform thermal insulation of pipelines and utilities equipment. The chaotic arrangement of basalt wool fibers provides high strength, the ability to steadfastly resist powerful loads.

Based on the strength properties basalticproducts used for the arrangement of the lower floors and floor systems, combining the floor and ceiling. For the arrangement of the floor with the same intensity used porous polystyrene foam and other types of synthetic insulation. In wanting to equip the heater overlap the natural question arises: "What is the best fit for the floor insulation: mineral wool or foam" Definitely no one answer, but the comparison scales are often inclined towards rock wool because of the affordable prices and properties prevent the passage of sound vibrations. And both types of heaters are virtually equal performance on the initial strength parameters.

Mineral wool insulation for more efficient performance

Mineral wool is more efficient material for the acoustic characteristics

Qualitative indicators foam

The foam prepared from the polymer slurryby foaming, than due to its low specific weight. Lightweight insulation is characterized by high strength, since its structure is a set of small closed cells interconnected in a specific way. Each of the original closed areas, in which there is a gas or air, takes some of the load. Together, they have a strong resistance to static and dynamic stress.

Structural strength and reliabilityinsulation provided pellet sintering technology in the solid material. Relations between the granules do not collapse during the entire period of use. Articles of stone wool against the long-term yield foams. With prolonged use especially in the conditions of extreme temperatures, even the most durable basalt wool, which occupies a leading place among the mineral insulation can flake, crumble and deform.

The specifics of the structure of the foam, predetermining technical advantages

The specific structure of the structural foam, justifying its technical advantages

In the manufacturing process foam insulation90% consisting of air, formed into slabs,blocks, modules for permanent formwork, architectural and decorative elements and other types of products. Possessing structural strength and density of the foam is extremely easy to install, thereby significantly reduced time work on the insulation device.

Operational Safety

In order to combat the flammability of plasticheaters their composition is enriched with additives that prevent combustion processes. Again the question: foam or mineral wool provide complete security? Manufacturers claim that fire criteria equivalent to these materials. In case of contact with the hearth fire of these two options work the same insulation as are a group of self-damping.

In the production of mineral insulationused phenol-formaldehyde binders that emit harmful volatile substances. With the loss of structural links containing silica wool can also distribute silicate dust, methods of cleansing the lungs from which also no one has yet invented. Certified insulating mineral cotton materials, of course, suitable for arranging housing, but to the products of artisans should be treated cautiously. If foam or mineral insulation will perform the function of the middle element of well masonry or placed under a concrete screed floor, the safety criteria are irrelevant.

Light weight and easy installation

Production of styrofoam products much easierrock wool. Cruiserweight mineral insulation impact during transportation. The cost of loading, delivery to the construction site, unloading products from mineral wool above the payment of similar processes required for the transport of products from foam. Lightweight foam insulation is more convenient to install than mount mats of basalt insulation, which is reflected in the rate of production of works and payment of costly manual labor.

New modifications foam

Non-combustible foam new generation

Foam insulation slightlyincreases the weight of the building structures, so no need to enhance the bearing capacity of the supporting base for home. When building insulation basalt wool its weight need to be considered. Moreover, it is necessary to rely on the weighting of the mineral material in service with a high level of humidity, due to which the hygroscopic rock wool less frequently used for insulation of equipment plinths, basements and foundations, in contact with water saturated soils.

Consumers wishing to hold insulationhousing, commercial or industrial buildings efficiently and economically, a comparative analysis of the data will help determine the choice. The unequivocal answer to the question, it is better to foam or mineral wool, does not exist. Each of them has its drawbacks, and a considerable list of benefits. Focusing on the significant personal moments for the buyer, you can choose the best option.

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