Warming the house with mineral wool with your own hands — step-by-step instructions with photos and videos. Pros and cons of the material
The construction of your own house at a certain stage poses to the developer the question of the need for wall insulation. Thermal insulation works are a responsible measure, since non-compliance with the technology can lead to large heat losses, the appearance of dampness, fungus and mold.
The service of insulation of private houses with mineral wool has become increasingly popular recently due to the realization of the fact that after all the installation work and commissioning of the building, you can start saving well on heating.
High-quality thermal insulation work allows you to achieve high comfort indoors, achieve the desired level of heat and maintain it for a long time. In the winter months, mineral wool does not allow cold air to cool the walls much.
In addition, by increasing the thickness of the walls and due to its heat-conducting characteristics, it is possible to eventually achieve the 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 intensively, creating conditions for temperature constancy. Due to this, the house becomes cool (compared to the street).
The facade of the house insulated with mineral wool and a well-thought-out ventilation system 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 complement the list of necessary steps to create optimal housing.
Varieties of mineral wool
The market of building materials is saturated with a variety of insulation, among which mineral wool occupies a separate place. On the web, you can find a huge number of photos of home insulation using mineral wool. The raw material for its production determines the type of cotton itself. It can be made of stone, slag or glass.
Stone wool is made of basalt, granite or porphyry. Volcanic rock gives a high result in terms of the quality and durability of the materials made on its basis.
Slag wool is produced from waste from the metallurgical industry. The material is slightly inferior to the leader, because it does not cope well with sudden temperature changes in late autumn and early spring.
In addition, the increased humidity from the steam passing through the wall material outside reduces its service life. Often this kind of mineral wool is used for insulation of barn buildings, garages.
Glass wool is obtained by mixing glass production waste, soda, limestone, dolomite and borax mineral. The material turns out to be elastic and resistant to vibrations. As a rule, glass wool is used in structures that require a high degree of fire safety.
The form of production of mineral wool is in the form of plates of various sizes and in rolls. If the heat-insulated surface is large, then roll insulation is used, which reduces the number of joints.
Mineral wool has a different degree of hardness, which is marked on the packages. 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 pie.
Nuances of work on home insulation
If it is decided to insulate the outside of the house with the help of mineral wool with your own hands, then you need to keep in mind some of the features of this process. The frame for the installation of mineral wool slabs is made of wooden bars or a metal profile.
Moreover, the distance between the carriers should be slightly less than the width of the plate itself, so that when it is installed tightly there are no gaps. The latter will be cold bridges that increase heat loss.
The frame should also consist of horizontal bars to avoid increased load 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 in 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 strips 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 overlapping (approximately 10 cm, or along the corresponding line on the material itself), and the joints must be glued with a special tape.
The next stage involves the installation of a crate on top of a vapor barrier layer. This is done for the reasons that there should be a ventilation gap between the thermal insulation and the facade finishing.
Steam from human activity, passing through the wall, insulation and membrane will dissipate just in the gap space. In this way, a ventilated facade is arranged.
It is possible to mount on special U-shaped suspensions used for mounting a metal profile under drywall. Plates or strips of rolled 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 suspensions. It is a supporting structure for the facade and at the same time creates a ventilation gap.
Thus, the insulation technology of mineral wool is not too complicated, however, elementary construction skills are required.
Exterior 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 thermal insulation layer. In addition, this option will save the useful area of housing. There are two ways to insulate the facade: wet and dry.
Wet method. The insulation is mounted on the wall, finishing works are carried out on top of it, for example, plastering. The thickness of the thermal insulation layer is about 10-15 cm.
The plates are glued to the wall with special glue, additionally fixed with "Mushroom" dowels. After that, the base must be reinforced with a special mesh and plastered with the same adhesive composition.
Facade plaster finishes the finish, for example, bark beetle. It will perform two functions – protective and decorative. It is advisable to carry out all work in dry weather, since the insulation that is wet from the rain will dry for a long time.
Dry method. This method allows you to get a so-called ventilated facade. The insulation is placed between the carriers of the 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 get a facade of your own house that is reliably protected from precipitation, wind and cold. And this is the key to a comfortable stay for the whole family.
Photos of the insulation of the house with a minvata