Features of house insulation outside with mineral wool for siding

Before finishing a private household with siding, it is recommended to consider the issue of effective thermal insulation of the walls. For summer cottages, the simplest cladding is quite enough, but if you plan to live in a house in the winter, you should think about a more thorough and thorough insulation.

There are many materials that have high performance and can serve as a reliable insulation.

The most common:

• mineral wool;
• basalt fiber slabs;
• foam plates with a thickness of 3 cm and 5 cm;
• penoplex.

All of the above heaters are completely safe, from the point of view of ecology, they are also quite affordable, and it is not difficult to work with them.

Mineral wool is most commonly used for wooden structures.

This material is inexpensive and has a number of unique properties:

• provides effective air exchange;
• easy to assemble;
• durable if operated correctly.

Mineral wool (basalt fiber slab) is usually used to insulate a house for siding. The material is not afraid of moisture, it is hygroscopic and is able to reliably protect the coating from negative external influences, including temperature. Insulation consists of fibers that are produced from rocks. The material is in good demand due to its low price and high efficiency.

The thermal resistance of the insulation is approximately the same as that of a 195 cm layer of silicate brick. Cotton wool also does not lend itself to aggressive chemical compounds. It does not decompose and does not grow moldy, fungus or spores of the simplest microorganisms do not start on cotton wool.

Before starting work on the insulation of a brick or wooden house, mineral wool is impregnated with a special solution that has hygroscopic properties. Thus, a layer of insulation can serve as an additional waterproofing protection.

Mineral wool is presented in a wide range today.

Varieties can differ from each other according to various criteria, including density.

• From 35 to 50 kg / m3 - very soft, airy material. It is sold in rolls and bags, you can insulate horizontal surfaces with it.
• 75 kg / m3 is a slightly stiffer material; horizontal planes are also sheathed with it.
• 120 kg / m3 is a stiffer mineral wool, it is equally good to use it both for walls and for floors and ceilings.
• From 148 to 170 kg / m3 - has increased rigidity. It is used most often for insulating floors in attics, as well as vertical planes.
• 220 kg / m3 is a very dense material that can withstand heavy mechanical loads up to 10 MPa.

According to the composition, the mineral wool is divided into the following types:

• glass wool;
• stone;
• slag.

Like any material, mineral wool has its advantages and disadvantages:

Advantages:

• low price;
• does not conduct heat;
• does not burn;
• long service life;
• does not contain toxins;
• has a high vapor permeability coefficient;
• you can do it yourself.

Disadvantages:

• high specific gravity;
• poses a threat to the skin and upper respiratory tract.

Mineral wool is usually insulated:

• wooden buildings;
• brick houses;
• concrete slab buildings.

Standard thickness parameters are 5-10 cm. Mineral wool is sold in the form of rolls or slabs.

When choosing the right material, you should definitely pay attention to some points. In mineral wool, an important indicator is the number of fibers that are present in the structure of the material. It is very important to understand that the weight of the fibers and the weight of the cotton itself are not the same thing. The best mineral wool is the one with higher quality fiber, which allows it to withstand high temperatures as efficiently as possible.

The density index describes the following characteristics:

• static form even during long-term use;
• good resistance to mechanical stress.

The density of mineral wool ranges from 32 to 167 kg / m3.

The density index from 43 to 110 kg / m3 makes it possible to use cotton wool for finishing a ventilated facade. If the density of the mineral wool is higher than 110 kg / m3 (140-160 kg / m3), this indicates that the wool can be used for processing with decorative plaster "Bark beetle", "Lamb", "Mosaic".

Most often, mineral wool of a lower density is used for insulation (from 30 to 50 kg / m3). Such material is used only indoors and is covered with plasterboard or clapboard. Also, similar wool can be used for insulation and sound insulation of the roof.

To choose the right cotton wool for facade insulation, it is recommended to remember the quality of the material. Domestic mineral wool is heavier, its density is about 150 kg / m3 (manufacturers "Technonikol", "Termolife", "Danova"). European companies offer lighter material with a density of 110-115 kg / m3 and even lower. The thermal conductivity coefficient of such cotton wool is better. There are more binder components in heavy wadding, Western manufacturers reduce the presence of resin and pay more attention to the quality of the fiber.

As a result, such products have better characteristics, while the weight of the material is noticeably lower (by 20-30 percent). In fairness, it should be mentioned that the cost of such a heater is noticeably more expensive than domestic.

The work related to the thermal insulation of the facade for siding consists of several main stages.

• Before attaching the mineral wool to the walls, they should be thoroughly cleaned and putty. The smallest cracks, as well as chips and cracks, are embroidered and sealed with cement mortar. The depressions are leveled, if the slopes are damaged, then they are finished again.
• Then the surface is treated with an alkyd or acrylic primer.
• A crate is made of bars with dimensions of 3.5x4.5 cm. They are attached to the wall with dowels.
• A vapor barrier is performed, for this, a PVC film or mastic is usually used. The first option is more preferable, it is inexpensive and reliable, the material is easily attached to vertical planes using a stapler.

• Then mineral wool is laid as a heater. It is easier to work with mineral wool in the form of slabs, only they must be fastened more firmly in order to avoid slipping.
• When insulating a log house, it is imperative to provide for waterproofing in the form of a special diffuse membrane. Its design allows you to remove excess moisture from the plates, which is formed due to the appearance of condensation. Its appearance is inevitable, especially during the cold season. The temperature outside can be below zero, the wall of the house is warm - this is a real precondition for the settling of the smallest drops of moisture on a vertical plane. If you do not take care of protection, then within a few years the walls of the house will deteriorate.
• During installation, it is imperative to leave ventilation gaps. A small space of 3-5 cm is left between the siding and the waterproofing outside, using special slats. This allows moisture not to settle on the surface, but to evaporate due to intensive air exchange.

• Mineral wool goes well with metal and vinyl, so this material is considered the best solution for siding. Before making the crate, the bars must be smeared with a special antiseptic primer, as well as refractory mastic.
• The thickness of the bars largely depends on the thickness of the mineral wool layer. It is also very important that the insulation is securely fixed in its "cell". It is best to mount the plates in a checkerboard pattern; in this case, special attention should be paid to the joints, they must be insulated.

• After installing the insulation, a special membrane is laid on top, which will protect the material from wind loads and moisture. This "cake" effectively allows air flow and retains excess moisture.
• If the insulation is mounted on brick walls, then they must be pre-cleaned. Microparticles of the material should not peel off and remain in the palm of your hand. When installing insulation on stone and brick walls, galvanized guides are used for the lathing.

Experts have developed recommendations on the choice of insulation, depending on the climatic conditions of a particular region. For example, for the Central, Northwestern, Far Eastern regions and the Urals, the optimal thickness of the insulation layer is 20 cm.For the Southern region, a layer 15 cm thick will be enough, and for the Siberian region - 35 cm.

To properly insulate the facade with mineral wool, you will need the following tools and fasteners:

• dowel-nails;
• anchoring;
• drill;
• Bulgarian;
• special glue;
• level and plumb line;
• primer.

If we consider specific brands, then experts recommend paying attention to the following products.

Basalt insulation "Beltep Facade 12" is used to insulate load-bearing structures. The second name of this wool is stone.

Possesses the following properties:

• does not burn;
• does not absorb liquid;
• does not contain toxins.

The material is produced in the form of slabs 60x100 (120) cm in size, with a density of 135 kg / m3.

Insulation "Technofas" (manufactured by "TechnoNIKOL") has a thickness of 10 cm. The basis for the creation of this material is basalt, obtained after processing rocks.

Advantages:

• does not burn;
• does not absorb moisture;
• efficiently stores heat;
• good sound insulator.

It is used in the construction of both private houses and administrative and industrial facilities. The energy-saving effect reaches 40%, it is distinguished by good resistance to moisture and temperature.

Insulation "Rocklight" (thickness 5 cm, manufacturer "TechnoNIKOL"). Raw materials are extracted from rocks. The insulation is very effective, it is an excellent sound insulator, does not contain toxins. It is very popular among private house owners.

For more information on using mineral wool for insulating a house for siding, see the following video.