Mineral wool for ceiling insulation

The warmth in the house is a guarantee of its coziness and comfort. To maintain a high air temperature in a dwelling, it is necessary to insulate not only the walls and floor, but also the ceiling. The most famous material for its insulation is mineral wool. Due to its relative cheapness, ease of use and durability, this material is very popular even among experienced builders.

Minvata is a universal means for insulating ceilings of various types of buildings and structures. The material has a number of noticeable advantages that allow it to occupy a leading position among other insulation options. At the same time, it should be remembered that the thermal insulation process must be carried out by professionals or people who have been trained and studied the necessary materials. And the procedure itself must be thorough and performed with great care and accuracy.

The thing is that even the smallest mistake made in the course of insulation can cause a decrease in the effectiveness of the action of mineral wool. Which, in turn, will lead to additional financial losses, and may even ruin your roof. Therefore, before proceeding with the insulation of the ceiling, you should study all the necessary recommendations and tips in order to avoid material and time costs.

Like any other material, mineral wool has a number of advantages and disadvantages. Let's try to figure them out.

Advantages of mineral wool as insulation for the ceiling:

• Affordable and affordable prices. Renovation is usually expensive. Therefore, a pleasant bonus will be the opportunity to save the family's budget. Especially if these savings are not detrimental to quality.
• Ease of use. Mineral wool is a pleasure to use. As a rule, it is produced and sold in the form of rolls and plates, which makes its operation as simple and convenient as possible.
• High fire resistance. A house fire is unpleasant, but possible. Therefore, the safety of the materials used for its construction, insulation and decoration is one of the most important qualities. Not only is mineral wool itself fire resistant, it also prevents the spread of fire into the depths of your home.

• Low weight. Insulating the ceiling is not an easy task. To carry out the work, you will need physical fitness and strength. Especially if you decide to make thermal insulation from the inside. The low weight of mineral wool will greatly facilitate the task.
• High density. The material has a fibrous structure, which provides high-quality not only thermal, but also sound insulation, which will be an additional pleasant bonus.
• Pest resistance. The composition of the insulation does not allow various unwanted "guests" (bugs, mice and other rodents) to wind up in it.
• Long-term use. Unlike some other popular insulation materials, mineral wool will serve you in the long run. Having once used mineral wool as a material for thermal insulation of a home, you will enjoy its productive action for many years.

• Lack of unpleasant odor. This quality of the material allows it to be used in any living space. It is suitable even for children's rooms and rooms where people with allergies and intolerance to odors live.
• Environmental safety and cleanliness.A particularly important quality indicator in the modern world. If you care about the state of your environment, then mineral wool is undoubtedly the right choice.
• High vapor permeability. In the warm season, this advantage will protect the building from overheating, and in the cold season, it will contribute to the removal of excess vapors into the street.
• Fortress. The insulation does not lend itself to mechanical stress of varying intensity.

Disadvantages of mineral wool:

• Does not tolerate structural transformation. Mineral wool is a building material that cannot be crumpled and tamped. This is due to the fact that when the fibers are compacted, its thermal insulation properties are significantly reduced.
• Does not tolerate moisture. Most often, for insulation of ceilings, mineral wool is used in conjunction with additional materials, such as polystyrene and polyethylene in the form of a film. Such "cooperation" allows you to preserve the properties of cotton wool, prevent it from getting wet and ensure effective and long-term thermal insulation of your premises.

The thickness of the mineral wool is one of the most important quality indicators. To make the right choice, carefully study the packaging, or better - consult with a specialist in a store or a construction company. In general, the main thing that you need to decide on is the number of layers with which you will lay insulation and the climate of the area in which you live. The thickness of mineral wool varies on average from 20 to 200 mm. Usually, mineral wool with a thickness of 150 mm is used for thermal insulation of residential buildings. However, there are several options here as well. So, for thermal insulation of a flat horizontal roof, 30 mm will be enough, and for a pitched roof, about 200 mm will be needed.

The modern market is overflowing with varieties of mineral wool. Moreover, they differ not only in the manufacturer and price, but also in the raw material (glass, stone, slag).

Let's consider the main types:

• Slag wool, for the most part, are used in industrial enterprises: factories, factories, combines. This type of wool is best used for thermal insulation of horizontal surfaces that do not have a large slope.
• Glass wool - material that can irritate your respiratory tract and skin due to the sharpened microscopic particles of which it is made. Most often, this type of wool is used for thermal insulation of wooden structures and buildings.
• Stone wool - the most common type. It is produced and sold in large quantities and is suitable for a wide range of tasks, being almost universal.

With the help of mineral wool, you can insulate the ceiling in any room (for example, in your private house) in 2 ways: outside and inside. External insulation is considered to be more economical, convenient and easy to implement, but insulation from the inside will be more effective. Let's consider step by step both options for thermal insulation of a room with our own hands.

Before starting direct work, the insulated surface must be thoroughly cleaned, getting rid of debris, dirt and other unnecessary elements.As mentioned earlier, it is advisable to use other materials along with mineral wool in order to avoid getting it wet. Therefore, any waterproofing is required for the next step. The simplest is plastic wrap. We cut the film into strips, which should be placed between the beams, securing the ends. After the film fixing procedure, you can use mineral wool. If you decide to use an additional layer of protection against getting wet, you can put layers of foam plastic on the plastic wrap and only then use the main insulation - cotton wool. The technology for installing mineral wool is quite simple: it must be fastened tightly enough so that gaps and gaps do not form.

The insulation should be laid in several layers. This advice is especially useful for people living in colder areas. Layer joints should not overlap. The last layer must necessarily cover the ceiling beams. This is to prevent heat from escaping through the wood. After you have managed to install the insulation, you should fix another layer of your chosen waterproofing (plastic wrap). The final step is to cover the insulation. Any coating can be used. Most often, wood is preferred.

The internal method of warming a room is somewhat more complicated. However, nothing is impossible. The first step is quite simple and similar to the first in the previous version: it is necessary to lay a layer of vapor barrier. Then we construct a wooden base, on which the suspended ceiling will later be located. We put mineral wool tightly between the wooden sides of the structure. If you want to secure more securely, then you can use nails and wire. We drive in nails on both sides of the mineral wool layer, pulling the wire in a zigzag fashion.

When using mineral wool, like any other material, you should follow a few simple rules:

• During work, use heavy gloves, a respirator, goggles and protective clothing.
• It is best to cut layers of mineral wool with a knife with a serrated blade or a special hacksaw for metal.
• When insulating, special attention should be paid to ensure that the cotton wool does not cover the ventilation hole.
• Mineral wool layers should be closely connected to each other.

• Mineral wool layers should be wider than the distance between the rafters. Pay attention to this during the measurement process.
• Check the operation of the communication systems before starting work.
• The rafter structure must be strong, check this point in advance.
• For better processing of the insulated surface, it is necessary to use antiseptic agents.

How to insulate the ceiling with your own hands with mineral wool, see the video.