The relatively new heat and sound insulation material MDVP (soft wood fiber boards) for the domestic construction market has actually been known and has been produced for quite some time. It is widely in demand and successfully used in housing construction in the countries of Scandinavia, where, as you know, the most severe climatic conditions require the selection of building materials with the highest rates.
In some houses in Finland MDL boards have been hanging on the walls of houses for more than 50-60 years, successfully fulfilling their functions, without losing useful properties. And this is perhaps the best evidence of their reliability, durability and effectiveness.
Why do Finns give preference to MDL tiles?
The surrounding harsh climate, the high cost of energy resources that the country is forced to purchase, as well as the “national” Finnish tendency towards rationality, spending their own finances with maximum savings, made soft fiberboard the material used almost everywhere here.
The main reasons for this popularization:
- Coniferous wood from environmentally friendly regions of Scandinavia is used for the manufacture of MDVP boards. The ability to withstand harsh climatic conditions while preserving its unique properties was originally “embedded” in the material by nature itself.
- Northern coniferous wood (fiber) is characterized by a high content of natural wood resins, which, according to the production technology, serve as the main binder components in MDL boards, the need to add artificial binder components to the plates disappears by itself.
- Soft plates are multifunctional, at the same time they cope with such important tasks as:
• wind protection of walls and roofs;
• thermal insulation of internal premises;
• noise and sound insulation of the house (there is no “echo effect”, acoustic comfort is created, sound absorption up to -23dB). - In houses insulated with MDL, the so-called "phase shift" is noted. The material significantly increases the time during which the house cools down in the cold season or warms up in the summer heat, i.e. in such a house is always comfortable and cozy.
Since the material is 100% natural, the risks of adverse effects on the human body, the appearance of allergies are eliminated. Wood, even in such a processed form, retains its unique property to regulate the humidity level in the premises, providing the most favorable living conditions.
Physical properties
Plate Thickness Properties | 12 mm | 25 mm |
---|---|---|
Bending Strength (H / mm²) | > 1,7 | > 1,3 |
Density (kg / m³) | > 240 | > 230 |
Marginal swelling (%) | < 6 | < 6 |
Vapor permeability (m³ / m²sPa) | > 1.5 x 10-9 | > 10-9 |
Breathability Δρ 100 Pa (m³ / m² * Pa) | <25 x 10-6 | <25 x 10-6 |
Thermal Conductivity (W / m * K) | < 0,045-0,05 | < 0,045-0,05 |
Preferring natural and environmentally friendly material, rational Finns provide their home with a unique property - to keep warm and comfortable for a person as long as possible, while minimizing heat loss. Therefore, it provides excellent savings on home heating, which positively affects the family budget.
The material for the production of soft plates is needles that meet the requirements of the ISO 9001 quality certificate.
Release form - sheet material, in most cases having standard sizes of 2700x1200 mm, sheet thickness - 8, 10, 12, 25 mm. The density of the sheets is more than 230 kg / m3, which allows us to speak not only about reliable insulation, but also wind protection.
The use of MDA is also rational because it allows you to save space in rooms (Finnish houses are usually compact and not too spacious). Installation of such sheets with a thickness of 12 mm will give the same effect as, for example, laying a wood layer with a thickness of 44 mm.
Summing up, we note once again the main points for which economical Finns loved MDVP so much. This is environmental friendliness, economy, high heat and sound insulation characteristics, the ability to keep warm at home in the cold, and cool in the summer hot heat, compact size, the ability to use in all structural elements of the house (walls, ceilings, roofs, floors).