Thermal insulation characteristics , advantages and disadvantages of mineral wool

By the properties of mineral wool in something similar to asbestos fibers.It was widely used during the execution of the thermal insulation of buildings and structures.In addition, this wool is beautiful and "suppressor" noise, which greatly improves its construction value.The term "mineral wool" - in common.So behalf of the Group of building materials, which includes the "wool" slag (denoted BC), glass (CB) and stone (HF).The difference lies in the feedstock, which is reflected in the characteristics.Especially known for wool, which is remembered by the fact that "prickly", like small needles.She applied everywhere because it is a fairly inexpensive material.

Thermal insulation characteristics of mineral wool

Mineral wool is made of several types.You should know that from the thickness of the mineral wool fibers are directly dependent on its thermal insulation characteristics.They are higher in material with a thin fiber.This index CB within 5 - 15 microns, in the BC and AC - from 4 to 12. This material is suitable for use at high temperatures.The ultimate (in degrees Celsius) are as follows: for the SV - 500, for BC - 300, for the KV - 600.

should know that mineral wool is produced in the form of slabs and mats on its basis.They differ in density.More "soft" (U - 75, U - 125) are used for thermal insulation engineering communications of buildings, walls, ceilings, etc. "Hard.". (RV - 175 RV - 200) are used for insulation of metal skeletons, with insulation surfaceswhere she made a three-layer.As a core layer and apply the brand of RV.

Dimensions slabs and mats: length 1000 mm (RV - 75) to 2000 mm (mats), width from 500 mm to 1000 mm thickness from 50 mm to 80 mm

The group "mineral wool" is also a basalt fiber.It can withstand 1000 degrees and does not lose its properties at a temperature of -190 degrees.This is achieved due to the absence of impurities and binders in the manufacture of the material.This production technology does not allow it to form from sheets or rolls.Basalt fiber is simply poured.The second option - it is "stuffed" in some form.

Any material from the group "mineral wool" is an excellent sound absorber.Mineral wool is not subject to burning at very high temperatures, it just melts.It is resistant to substances such as solvents, oils, alkalis.Even an average acid concentration can not damage the mineral wool.And another big plus mineral wool - a slight shrinkage.In other words, slabs or mats virtually no change over time dimensions, which is also important in the construction.One of the advantages of this material is the fact that it does not absorb moisture.The fibers are connected to each other by special additives, the water simply push.

Disadvantages mineral wool:

• can release harmful substances.However, this occurs at rather high temperatures and under normal conditions not dangerous mineral wool some other construction materials;
• dust produced by contact with the air of microscopic fibers detrimental effect on the lungs and respiratory tract.Therefore, when working with this material should be used remedies.

If we talk about the relative safety of human health, the wool "looks" attractive.