To ensure a comfortable stay in the house, it is necessary that the temperature and humidity conditions of the premises are observed. This can be done with the help of reliable thermal insulation of structures. Insulation of houses outside with mineral wool for siding is the most pressing problem, since these two materials are most common in private construction due to their characteristics and cost.
Material selection
To perform the insulation of the walls of the house outside, just to say that mineral wool is not enough. This material has several varieties. One can imagine two main classifications:
- according to the form of release of products;
- raw materials for manufacturing.
The following can be said about the first division. It is possible to conduct thermal insulation with mineral wool released in mats and slabs. Mats are rolled up, plates are packed and transported in separate blocks. To carry out wall insulation from the outside, there is no fundamental difference, you can use both options.
The difference is in the density of the material. Limitations arise, for example, if thermal insulation is carried out on a floor with high pressure. Mineral wool mineral wall insulation is an event that provides high efficiency.
Depending on the raw materials for manufacturing, the following types of material can be given:
- Stone or basalt wool. The most common in construction, is available in slabs. The material is resistant to deformation and fire. A special water-repellent substance is introduced into the composition during production. This composition allows you to increase the ability of the material to resist moisture.
- Glass wool. Release form - mats (rolls). The material is 80% broken glass, so you should use protective gloves and a mask when working with it. If you neglect the rules for working with glass wool, particles of material will get on the skin, in the eyes and lungs, cause itching, irritation or even swelling. The material has high thermal insulation efficiency. The temperature at which the insulation of the walls of the house outside with such mineral wool for siding does not lose its characteristics, from -60 to +450 degrees Celsius.
- Slag cotton. The most budget option of the above, but despite this is rarely used. The material is made on the basis of waste from various industries. When buying, it is important to control exactly which of these industries and whether they pose a danger to life and health. Warming under the siding of a stand-wood or brick house outside should be safe, so when using such mineral wool, you need to make sure its composition. The only advantage of such a heater in front of brothers is the cost. In terms of thermal conductivity and hygroscopicity, slag is inferior to glass and stone. If moisture gets on the surface of the heat insulator with insufficient waterproofing from the outside, acidic substances are formed, which are an aggressive environment for other structures of the house.
Advantages of using the material
Warming a brick or wooden house for siding with fixing the protective layer outside the walls allows you to get the following advantages for its future owner:
- Fire resistance. Now the fire safety requirements of the facility are quite high. Especially refractory characteristics are important for a wooden house, the material of the walls of which cannot boast of good resistance to fire. Thermal insulation of mineral wool belongs to the category of non-combustible or low-combustible materials, which allows you to install a heat insulator outside under the siding without fear.
- Resistance to chemical and mechanical influences. In addition, the material is not affected by various rodents, it is not afraid of mold, fungus and rot. All these qualities allow us to talk about increasing the life of the thermal insulation of the walls of the house, both when fixing under siding and when sheathing with other materials.
- Saving the form. Mineral wool does not give strong shrinkage or thermal expansion. When the temperature changes, fluctuations in geometric dimensions are insignificant. The natural shrinkage of the material is also small, so its use allows you not to worry about thermal insulation of the upper floor after several years (minvata will not settle inside the wall and not leave “bare” areas).
- The material is permeable to steam. This is especially important when building a wooden house, as many customers choose it precisely for their ability to "breathe." The use of polystyrene foam or polystyrene negates these advantages, while mineral wool retains the positive qualities of an environmentally friendly structure.
- Good thermal insulation abilities. It is important to remember one rule: the lower the thermal conductivity, the better. Low ability to conduct heat means that the house will have minimal heat loss, low heating costs and normal temperature and humidity conditions in the premises. Insulation of the walls of the house under siding with effective material can significantly save during the operation of the building.
- Convenience of installation. It is important to remember the availability of personal protective equipment, such as gloves, a mask, and special closed clothing.
- Durability. Many of the qualities listed above directly or indirectly affect the life of the material. Mineral wool is able to perform its functions over the years.
Insulation Installation
There are two ways to secure material for siding:
- on a wooden crate;
- on a metal crate.
The first option involves the manufacture of a frame from wooden bars and is used more often for house building from wood. For the second, a metal profile is used, it is suitable for facing the outer surface of a building made of brick.
Installation of insulation on a wooden frame
The procedure is as follows:
- removal of protruding elements that may interfere with work (gutters, shutters, etc.);
- repair damage to the surface of wall structures using tow;
- installation of horizontal and vertical frame elements (racks align in level);
- laying the plates of the heat insulator so that gaps do not form (it is better to initially select the step of the crate so that the distance between the posts in the light is 2-3 cm less than the width of the heat insulator);
- filling gaps with pieces of material;
- installation of a waterproofing layer, which is best used as a moisture-proof vapor diffusion membrane (fastening to the frame is done with a stapler, overlapping joints of the material, gluing joints and staples with adhesive tape);
- install the crate under the finish, aligning it with the level;
- fasten siding.
Metal frame mounting
The procedure is as follows:
- surface preparation of walls: cleaning, primer, plastering;
- mounting suspensions for galvanized frame elements;
- installation of thermal insulation on glue and dowels;
- fixing the lathing on the casing on the suspensions;
- installation of siding.