Rockwool "Sauna Butts": technical characteristics of basalt wool for a bath

When building a bath or sauna, it is important to choose the right insulation for the walls. It will have to be applied from the inside and outside. Walls, floors and ceilings must retain stored heat and maintain the correct temperature. Basalt type of mineral wool is often used for insulation. The Rockwool company produces heaters for saunas and baths "Sauna Butts", which are effective and have an affordable price. In this article, we will consider the pros and cons of the material, talk about its technical characteristics and installation method.

Bath wool "Sauna Butts" is an effective heat insulator, which:

• has a low specific gravity;
• has heat resistance;
• produced in special units from stone wool of its own manufacture by the Rockwool company.

The material is intended specifically for thermal insulation of baths and saunas. The great advantage of the product is the increased level of thermal insulation, thanks to which you can save on electricity and wood. On one side, Sauna Butts cotton wool is covered with aluminum foil to improve vapor barrier properties. The coating helps to reflect heat inside the bath.

In addition to increasing the level of thermal insulation, Rockwool basalt wool allows you to save on the additional purchase of a vapor barrier film, whose use becomes unnecessary. The only thing that will have to be bought in addition to the insulation itself is the material for the air gap between it and the external finish. Another advantage of this heat-insulating product is fire safety, which is important for such premises.

An important advantage is the biostability of the product, which indicates its unsuitability as food for insects or mice.and also prevents the appearance and growth of mold, fungi and bacteria. All Rockwool brand products are made from environmentally friendly natural raw materials. This ensures a comfortable climate for the human body. Cotton wool does not have a negative effect, it does not contain toxins. Sauna Butts plates are made for thermal insulation of walls in steam rooms. However, if you provide the material with a reliable fastening, it can also be mounted on the ceiling. The dimensions of each product are 1000x600x100 and 1000x600x50 mm, which allows you to cover a large area with one slab.

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The disadvantage of the material is the fact that its effectiveness directly depends on the footage of a particular room.

The technical characteristics of Sauna Butts thermal insulation boards are as follows:

• density - 40 kg per 1 m2 of area;
• thermal conductivity - 10 0.036 watts constant;
• according to the level of combustibility, plates belong to the "G1" group and the "KM1" class in terms of fire safety;
• the temperature is maximum +20 degrees C;
• insulation acidity modulus exceeds two units.

The above technical properties of Rockwool thermal insulation materials indicate their high performance at a fairly affordable price.

Installation of heaters in the walls of the sauna is quite simple.

• First of all, you should install the products between the frame posts and at the same time leave a small gap of 59 cm.
• Next, you need to heat the bath and install the foil layer of the heat-insulating plate in a warm room.
• After that, it is recommended to carefully tape all seams and joints with tape. Self-adhesive tape must be made of the same aluminum foil.
• The final touch will be the installation of the lathing between the basalt wool and the exterior finish. It is she who will provide the necessary air gap later.

For thermal insulation of external walls, two layers of Rockwool products should be installed: Sauna Butts and Light Butts. The required thickness of both boards is 50 mm. For the implementation of increased thermal insulation, it is recommended to mount the slabs following the example of brickwork.

When repairing a bath, you should think about insulating the chimney, which more often than all other parts of the room comes into contact with smoke and is subject to ignition due to prolonged exposure to high temperatures. Basalt wool is perfect for this part of the steam room. For even greater efficiency, the brand offers Fire Butts cookers. They are suitable for installing fireplaces.

For insulation of the bath floor, you can choose one of two options, depending on the material from which it is made. For a wooden covering, it is necessary to carry out insulation on the logs using a crate; for a concrete analogue, it is installed on the ground. If a wooden floor is installed in the bath, stone wool is mounted in the structure between the logs, after which the waterproofing material is spread. The waterproofing is installed with an overlap in the tile joints, after which they should be glued. Upon completion of the work, the structure is covered with wooden flooring and finished.

In the case of a concrete floor, I use a different technology. First you need to install basalt wool of increased rigidity on a previously primed surface. The second stage will be the waterproofing of the material, after which you need to make a concrete screed and lay the tiles.

Among the customer reviews left on the network, there are positive and negative opinions. Satisfied users consider the small thickness of basalt wool to be the biggest advantage in comparison with other thermal insulation materials. It does not affect the effectiveness of the material. Sauna Butts is considered the best value for money. Buyers are pleased with the fire safety of materials, as well as their biostability. Each positive review speaks of the long operational life of the products; they do not require replacement for many years.

However, not all users are happy with the purchased product. Many people write about the low efficiency in large rooms and the difficulty of self-installation. Thermal insulation material "Sauna Butts" was unable to retain heat in baths with an area of ​​more than 30 m2, so their owners were extremely dissatisfied, despite the small financial costs.

For information on how to insulate a sauna and a bath, see the next video.