Building your own house at a certain stage raises the question of the need for wall insulation for the developer. Thermal insulation works are a responsible event, since non-compliance with the technology can lead to large heat losses, the appearance of dampness, fungus and mold.
The service of insulating private houses with mineral wool has become increasingly popular in recent years due to the realization of the fact that after all the installation work has been completed and the building has been put into operation, you can start saving money on heating.
Brief content of the article:
Benefits of insulated walls
Qualitatively carried out thermal insulation work allows you to achieve high comfort indoors, achieve the desired level of heat and maintain it for a long time. During the winter months, mineral wool prevents the cold air from cooling the walls too much.
In addition, by increasing the thickness of the walls and due to its heat-conducting characteristics, it is possible to eventually achieve a displacement of the so-called dew point outside the wall material (for example, into the same insulation). Thus, the service life of the structure can be significantly increased.
In summer, thermal insulation functions differently: it does not allow the walls of the house to heat up intensely, creating conditions for a constant temperature. Due to this, the house becomes cooler (compared to the street).
The facade of the house insulated with mineral wool and a well-thought-out ventilation system of the premises will help to avoid dampness, the development of mold and fungi, the presence of which adversely affects human health.
The installation of a new heating system, high-quality windows with double-glazed windows in several chambers, as well as doors, will complete the list of necessary steps to create optimal housing.
Varieties of mineral wool
The building materials market is saturated with a variety of insulation, among which mineral wool occupies a separate place. On the network you can find a huge number of photos of home insulation with mineral wool. The raw material for its production determines the type of cotton wool itself. It can be stone, slag or glass.
Stone wool is made from basalt, granite or porphyrite. Volcanic rock gives a high result in terms of quality and durability of materials made on its basis.
Slag wool is produced from the waste of the metallurgical industry. The material is slightly inferior to the leader, as it does not cope well with sudden temperature changes in late autumn and early spring.
In addition, increased humidity from steam passing through the wall material to the outside reduces its service life. Often this kind of mineral wool is used for warming barn buildings, garages.
Glass wool is obtained by mixing glass waste, soda, limestone, dolomite and borax mineral. The material is elastic and resistant to vibrations. As a rule, glass wool is used in structures requiring a high degree of fire safety.
Form of production of mineral wool — in the form of plates of various sizes and in rolls. If the heat-insulated surface is large, then a roll insulation is used to reduce the number of joints.
Mineral wool has a different degree of hardness, which is marked on the packaging. Soft wool is used indoors, for example, to create heat and sound insulation of partitions. Rigid and medium hardness is more suitable for walls and roofing cake.
The nuances of home insulation
If a decision is made to insulate the house outside with mineral wool with your own hands, then you need to keep in mind some features of this process. The frame for the installation of mineral wool boards is made of wooden bars or a metal profile.
Moreover, the distance between the carriers should be made slightly less than the width of the plate itself, so that when it is tightly installed, there are no gaps left. The latter will be bridges of cold, increasing heat loss.
The frame should also consist of horizontal bars in order to avoid increased loading of the plates on each other and their subsequent sagging. You can also use special dowels of the «Mushroom» type.
The dowel itself, passing through the thickness of the insulation, goes inside the wall material. Its large head holds the insulation. A nail (metal or plastic) is driven into the body of the dowel, expanding it. Thus, the entire structure is securely fixed to the wall.
After the installation of the plates, the stage of creating a vapor barrier layer begins. The placement of the membrane is carried out in horizontal stripes and starts from the top of the structure. You can fix the insulating material with a construction stapler if the carriers are made of wood.
It makes sense to use double-sided tape when a metal profile is used. The main thing to remember is that the membrane must be mounted with an overlap (about 10 cm, or along the corresponding line on the material itself), and the joints must be glued with a special tape.
The next step involves installing the crate on top of the vapor barrier layer. This is done from the considerations that there must be a ventilation gap between the thermal insulation and the facade finish.
Steam from human life, passing through the wall, insulation and membrane will dissipate just in the gap space. Thus, a ventilated facade is equipped.
It is possible to mount on special U-shaped hangers used for mounting a metal profile under drywall. Plates or strips from roll insulation are mounted on the “Mushroom” dowels. The density of the material allows the suspensions to pass through the insulation.
Next comes a layer of vapor barrier, and then a metal profile is fixed on the protruding ends of the hangers. It is a supporting structure for the facade and at the same time creates a ventilation gap.
Thus, the technology of mineral wool insulation is not too complicated, however, elementary construction skills are required.
External walls and their insulation
Experienced builders advise to insulate the house from the outside. Due to this, heat will be retained in the premises, and cold air will be retained by the heat-insulating layer. In addition, this option will save usable living space. There are two ways to insulate the facade: wet and dry.
wet method. The insulation is mounted on the wall, finishing work is carried out on top of it, for example, plastering. The thickness of the heat-insulating layer is about 10-15 cm.
The plates are glued to the wall with a special glue, additionally fixed with dowels «Mushroom». After that, the base must be reinforced with a special mesh and plastered with the same adhesive composition.
Facade plaster, for example, bark beetle, completes the decoration. It will perform two functions — protective and decorative. It is advisable to carry out all work in dry weather, since the insulation wet from the rain will dry for a long time.
dry method. This method allows you to get the so-called ventilated facade. The insulation is placed between the supporting frame made of timber. The latter is necessarily covered with an antiseptic.
Next comes a layer of vapor barrier membrane and a crate, on which the facade itself is mounted. In this way, you can insulate the house with mineral wool from the outside under the siding.
If all the technology is followed, then as a result it will be possible to obtain a facade of your own house that is reliably protected from precipitation, wind and cold. And this is a guarantee of comfortable living for the whole family.
Photo of warming the house with mineral wool
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Post published: 02.12
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