Everyone wants to live in comfort and peace. If owners of private houses set such a goal, they try to protect the house from extraneous noise and cold with the help of special materials. If you are looking for protection from the winter cold and summer heat, you can use mineral wool based thermal insulation. This material is presented for sale in several varieties, each of which has its pros and cons, so you need to study them before making a purchase.
Coefficient of thermal conductivity
The thermal conductivity of mineral wool reaches 0.040 W / m ° C and depends on the density. Thermal insulation can be based on different raw materials, which affects the structure of the fibrous. On sale you can find horizontally and vertically layered, spatial or corrugated layered wool, which greatly expands the possibilities of using the material in various designs.
The thermal conductivity coefficient of mineral wool will not always remain at the same level. This parameter increases over 3 years by 50%, which is due to the penetration of moisture into the structure. It is important in conjunction with this characteristic to pay attention also to the vapor permeability, which is equal to unity if there is no vapor barrier. The mentioned properties act as one of the main characteristics that affects the area of use of the material.
Thermal conductivity of varieties of mineral wool
Thermal conductivity is the process of heat transfer from a heater to a material with a lower temperature. The following varieties of wat can be attributed to the described thermal insulation:
- glass;
- slag;
- stone;
- basaltic.
Each of these species has its own coefficient of thermal conductivity. As for the glass wool, the mentioned parameter for it can be equal to 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 the mentioned 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 thermal conductivity of Isover mineral wool
Before purchasing this or that material, it is necessary to familiarize yourself with the thermal conductivity parameters of mineral wool. Comparison can be made, taking as a basis thermal insulation under the brand Isover. If it is represented by a roll and is marked “Classic”, then the thermal conductivity coefficient 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 stresses.
By purchasing Karkas-P32 mineral wool, you will use boards 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 frame structures, as well as "Frame-M40-AL" with a coefficient of thermal conductivity, which is equal to 0.046 W / m * K and no more.
All of the above heaters have an insignificant coefficient of thermal conductivity, which provides excellent sound and heat protection. The fiber structure plays an important role in this matter. For insulation of frame walls, Karkas-P32 mineral wool is used, which has a thermal conductivity coefficient in the range of 0.032 W / m * K, which is the lowest indicator.
Thermal conductivity coefficient of Ursa cotton wool
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 Ursa mineral wool. If you need insulation for thermal insulation of the roof, floor and walls, then you can choose "Ursa Geo M-11" with a coefficient of thermal conductivity in the range of 0.040 W / m * K. Slabs, presented in rolls and manufactured under the name URSA GEO, are designed for pitched roofs. The thermal conductivity in this case is equal to 0.035 W / m * K.
For insulation of floors, acoustic ceilings and ceilings, URSA GEO Light 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 mineral wool insulation under the Ursa brand are among the best. Using this insulation, it is possible to reliably insulate the house, as a result it is possible to achieve the formation of a breathing surface with air gaps. Using a unique recipe and using environmentally friendly technology, Ursa Geo is made, which deserves special attention.
Thermal Conductivity Rockwool Minerals
Rockwool mineral wool thermal conductivity may also be of interest to you. This material is offered for sale in several items, each of which is presented by plates or mats. For example, Rockmin with a coefficient in the range of 0.039 W / m * K is produced in the form of plates and is intended for sound and thermal insulation of attics, walls, roofs and ventilated coatings.
Domrock mats can be used for suspended ceilings, beamed ceilings and lightweight frame walls. The described characteristic in this case is equal to 0.045 W / m * K. Panelrock is offered for sale in the form of plates and is designed for sound and heat insulation of external walls. The thermal conductivity coefficient of this material is 0.036 W / m * K.
If you have a Monrock max plate in front of you, then you can purchase it for warming different types of flat roofs. The thermal conductivity coefficient in the case of this thermal insulation solution is 0.039 W / m * K. You may also be interested in the thermal conductivity coefficient of 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 thermal insulation of floors and floors, the first of which are arranged on the ground, while the others are located under a concrete screed. Mineral wool in the form of Alfarock mats, which is used for insulation of pipelines and pipes, should be placed in a special section. The thermal conductivity in this case is equal to 0.037 W / m * K.
Features of TechnoNIKOL mineral wool
If you decide to choose Technonikol products, the thermal conductivity coefficient 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 a hydrophobized non-combustible plate, which is designed for sound and heat insulation. Material is created on the basis of rocks that belong to the basalt group.
Plates are used in industrial and civil engineering, systems of external wall insulation, 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 from 125 to 137 kg / m 3 .
The thermal conductivity coefficient of mineral wool is not the only property that you should be aware of. It is important to inquire about other parameters, for example, length, width and thickness. The first two are equal to 1200 and 600 mm, respectively. As for the length, in increments 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 floors and walls, but also for insulation of high-temperature surfaces by the type of pipelines and furnaces. The material can become fireproof structures and act as a protective layer in acoustic screens and partitions. In stone wool products, which are made on a synthetic binder, the destruction process begins when the temperature of exposure to the material is equal to the limit of 300 ° C.
Properties of mineral wool sandwich panels
Mineral wool sandwich panels are quite popular in construction. The thermal conductivity of this material is equal to the limit from 0.20 to 0.82 W / m * K. The degree of sound insulation of the material is 24 dB. Shear strength is 100 kPa, as is compressive strength. The density of the products can be equal to the limit from 105 to 125 kg / m 3 .
Designs do not provide for the need to use special equipment for construction work, they easily undergo exposure to ultraviolet radiation, as well as temperature extremes. Sandwich panels are not susceptible to rust, they are resistant to fire and have excellent heat and sound insulation qualities. In case of damage to the panel, partial replacement is permissible. Such structures do not create an unnecessary load on the foundation. Having visited 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 various markings that determine the properties and scope of use. For example, the P-75 has the density mentioned in the title. The material is excellent for thermal insulation of horizontal planes, which during operation will not experience heavy loads. If you need material for insulation of the ceiling or floor, then you can prefer the P-125, the density of which is mentioned in the marking. This material proved to be excellent when warming partitions and walls that are operated indoors.