Coefficient of thermal conductivity of mineral wool: properties and features

Everyone wants to live in comfort and peace. If such purpose is set by the owners of private houses, they try to protect the dwelling from extraneous noise and cold with the help of special materials. If you are looking for protection from winter cold and summer heat, you can use mineral wool insulation. This material is presented for sale in several varieties, each of which has its pros and cons, so before you make a purchase you need to study them.

Coefficient of thermal conductivity

The coefficient of thermal conductivity of mineral wool reaches 0.040 W / m ° C and depends on the density. Thermal insulation can be based on a different raw material, which affects the structure of the fiber. On sale you can find horizontally and vertically-laminated, spatial or corrugated-laminated cotton wool, which greatly expands the possibilities of using the material in various designs.

The coefficient of thermal conductivity of mineral wool will not always remain at the same level. This parameter increases by 50% in 3 years, which is due to penetration into the moisture structure. It is important, in conjunction with this characteristic, to pay attention also to the vapor permeability, which is equal to one if there is no vapor barrier protection. These properties act as one of the main characteristics that affect the area of use of the material.

Thermal conductivity of varieties of mineral wool

Thermal conductivity is the process of transferring heat from a heater to a material with a lower temperature. To the described thermal insulation can be attributed the following varieties of wat:

• Glass;
• Slag;
• Stone;
• Basaltic.

Each of these species has its own coefficient of thermal conductivity. As for the glass wool, the mentioned parameter may have a maximum of 0.052 W / m * K. In basalt wool this characteristic can vary from 0.035 to 0.046 W / m * K. If we are talking about slag wool, then this property is equal to the limit of 0.46-0.48 W / m * K. The thickness of the insulation affects the quality of thermal insulation and thermal conductivity. The value of thermal conductivity is prescribed in state standards GOST 7076-994.

Comparison of the ability to heat conductivity of Isover mineral wool

Before acquiring a particular material, it is necessary to familiarize yourself with the parameters of thermal conductivity of mineral wool. Comparison can be carried out, taking as a basis the thermal insulation under the Isover brand. If it is represented by a roll and is labeled "Classic", then the coefficient of thermal conductivity will be equal to the limit of 0.033-0.037 W / m * K. This insulation is used for structures where the layer will be subjected to loads.

Acquiring mineral wool "Carcas-P32", you will use a plate with a coefficient of thermal conductivity in the range of 0.032-0.037 W / m * K. This cotton wool is used for thermal insulation of frame structures. Mats "frame-M37" have a coefficient of thermal conductivity, which is equal to 0.043 W / m * K maximum. This material is also used for wireframe structures, like the "Carcas-M40-AL" with a coefficient of thermal conductivity, which is equal to 0.046 W / m * K and not more.

All of the above heaters have an insignificant coefficient of thermal conductivity, which provides excellent sound and heat protection. A major role in this matter is played by the fiber structure. For the insulation of frame walls, mineral wool "Carcas-P32" is used, which has a coefficient of thermal conductivity in the range of 0.032 W / m * K, which is the lowest indicator.

Coefficient of thermal conductivity of cotton wool "Ursa"

The table of thermal conductivity and other qualities of the material quite often allows consumers to make the right choice. This is also true when it comes to mineral wool "Ursa". If you need a thermal insulation for the roof, floor and walls, you can choose "Ursa Geo M-11" with a coefficient of thermal conductivity in the range of 0.040 W / m * K. Plates presented with rolls and manufactured under the name URSA GEO, are designed for pitched roofs. The coefficient of thermal conductivity in this case is 0.035 W / m * K.

For the insulation of floors, acoustic ceilings and ceilings, URSA GEO Lite rolls are used, in which the described characteristic is equal to the limit of 0.044 W / m * K. As practice shows, the properties of a mineral wool insulation under the brand Ursa are among the best. With the help of this insulation can be reliably insulated the house, as a result, it is possible to achieve the formation of a breathable surface with air interlayers. Using a unique recipe and using environmentally friendly technology, Ursa Geo is produced, which deserves special attention.

Thermal Conductivity Minwata Rockwool

The coefficient of thermal conductivity of Rockwool mineral wool can also interest you. This material is offered for sale in several names, each of which is represented by plates or mats. For example, Rockmin with a coefficient in the range of 0.039 W / m * K is available in the form of plates and is intended for sound and heat insulation of attics, walls, roofs and ventilated coatings.

Domrock in the form of mats can be used for suspended ceilings, beams and light frame walls. The described characteristic in this case is 0.045 W / m * K. Panelrock is offered for sale in the form of slabs and is intended for sound and heat insulation of external walls. The coefficient of thermal conductivity of this material is 0.036 W / m * K.

If you have a Monrock max plate in front of you, then you can buy it for insulation of different types of flat roofs. The coefficient of thermal conductivity in the case of this thermal insulation solution is 0,039 W / m * K. You may also be interested in the coefficient of thermal conductivity of the mineral wool Stroprock from the manufacturer Rockwool. It is equal to 0,041 W / m * K, and the material can be used for sound and heat insulation of floors and ceilings, the first of which are arranged on the ground, while others are placed under a concrete screed. Mineral cotton wool in the form of Alfarock mats, which is used for insulation of pipelines and pipes, should be placed in a special section. The coefficient of thermal conductivity in this case is 0.037 W / m * K.

Features of the mineral wool "Technonikol"

If you decide to choose the product "Technonikol", the coefficient of thermal conductivity of mineral wool from this manufacturer should also interest you. It is equal to the limit from 0,038 to 0,042 W / m * K. The material is hydrophobized non-combustible plates, which are designed for sound and thermal insulation. A material is created on the basis of rocks, which belong to the basalt group.

Plates are used in industrial and civil construction, external wall insulation systems, where the material is protected from above by a decorative coating of thin-layer plaster. The material is not combustible, its vapor permeability is 0.3 Mg / (m · h · Pa). Water absorption is 1% by volume. The density of the material can be equal to the limit of 125 to 137 kg / m ³ .

The coefficient of thermal conductivity of mineral wool is not the only property that you should know about. It is important to ask also other parameters, for example, length, width and thickness. The first two are 1200 and 600 mm respectively. As for the length, in steps of 10 mm it can vary from 40 to 150 mm.

Basic properties

Mineral wool is resistant to chemicals and high temperatures. It has excellent sound and heat insulation properties. The material is used not only in construction, where it is required to insulate ceilings and walls, but also to isolate high-temperature surfaces by the type of pipelines and furnaces. The material can become a fireproof construction and act as a protective layer in acoustic screens and partitions. In products made of stone wool, which are made on a synthetic binder, the process of destruction begins, when the temperature of exposure to the material is equal to the limit of 300 ° C.

Properties of mineral wool sandwich panels

Sandwich panels made of mineral wool are quite popular in construction. The coefficient of thermal conductivity of this material is equal to the limit from 0.20 to 0.82 W / m * K. The sound insulation level of the material is 24 dB. The shear strength is 100 kPa, as is the compressive strength. The density of articles can be equal to the limit of 105 to 125 kg / m ³ .

The constructions do not require the use of special equipment for construction work, they easily undergo ultraviolet, as well as temperature changes. Sandwich panels are resistant to rust, they are resistant to fire and have excellent heat and sound insulation qualities. In case of damage to the panel, a partial replacement is permissible. On the foundation of such structures do not create unnecessary workload. Visiting the store, you can choose any shade of panels, which allows you to achieve an excellent aesthetic result.

Conclusion

Mineral wool is offered for sale under different markings, which determine the properties and scope of use. For example, P-75 has the density mentioned in the title. The material is excellent for thermal insulation of horizontal planes, which will not experience heavy loads during operation. If you need material to insulate the ceiling or floor, then you can prefer P-125, the density of which is mentioned in the marking. This material showed itself well with the insulation of partitions and walls that are operated indoors.