Warming of the ceiling with mineral wool( mineral wool) - step by step instruction

The conditions of the Russian climate with a short summer and a long frosty winter make it necessary to take additional measures for the insulation of residential buildings. One of them is the covering of the ceiling with mineral wool. This procedure as a result will help not only to increase the period of heat preservation in the premises, but also to avoid the appearance of mold and fungus on the ceiling, which are caused by condensation, which is formed as a result of a direct collision of cold and warm air.

It is recommended to insulate the ceiling in apartment houses using minvat, sinceit is non-toxic and environmentally friendly material, does not rot, is fire-resistant, insects and rodents can not get into it.

The most important thing is that it has excellent heat and sound insulation qualities. They produce mineral wool in the form of rolls and plates. Also, when choosing, you should pay attention to the foil of mineral wool - it is good if one side of the roll or plate is covered with a layer of waterproofing foil. If there is no such layer, ideally, several rolls of foil foamed polyethylene must be purchased additionally. Instead, a dense polyethylene film can be used. As a vapor barrier is suitable for parchment. These materials are necessary for the conservation of mineral wool in dryness, becausethe soaked insulation loses up to 40% of the thermal insulation properties. In addition, you will need self-tapping screws, attachments with a wide plastic bonnet, a counter-jar, mineral wool glue, profile and profile suspensions, a stationery knife, a construction stapler, nails, a screwdriver, a hammer and a tape measure.

The most common thickness of the produced mineral wool layers is 10 and 5 cm. When the ceiling is insulated, a layer of insulation is 10 cm thick, in especially difficult cases - 15-20 cm. By the way of performing the works, the insulation is divided into internal, external and combined.

Internal insulation

The need for internal insulation of the ceiling is most typical for houses of several floors or with an attic, as well as for urban apartments. The entire scope of work consists of the following stages:

1. Ceiling of the ceiling - can be made of boards of 30-40 x 100-200 mm( board width directly depends on the thickness of the insulation layer) or metal profile. The cladding is fixed to the ceiling using nails or screws, while the distance between adjacent parts should be about 50-60 cm, depending on the width of the mineral wool used.
   

   Ceiling for ceiling

2. A waterproofing layer is fastened to the finished crate-stripes of 50-60 cm width are cut out, plus a tolerance of 5 cm on each side, i.e.the total width will be 60-70 cm. These strips are fastened by counter-rails to the wooden crate or self-tapping screws to the profile.
   

   We fix the waterproofing

3. Then we lay mineral wool and fix it with glue or a construction stapler to the ceiling, with a large layer thickness - to the crate.
   

   Fastening of mineral wool to the ceiling

4. The next layer is a vapor barrier using pergamina. It is mounted on a minivat with a stapler.
5. The finished structure is fixed by transverse fixing of counter-rails or profile.
   

   We fix the mineral wool to the ceiling

6. The internal insulation procedure is completed, the next step is the installation on the crate plasterboard, panels or stretch ceiling.

External insulation

This method is used in private houses with an attic space. Compared with the internal, this type of insulation is more simple in execution and takes much less time and effort. So:

1. The whole area of ​​the attic is covered with a layer of vapor-insulating material( parchment) overlapping with a width of 5-10 cm, the joints are pasted with adhesive tape or tape.
2. Of the boards of section 30-40 x 100-200 mm( width, as with internal insulation, depends on the thickness of the layer of mineral wool), the lath is stuffed. The distance between neighboring beams is calculated according to the width of the roll or plates of the heater.
   

   We make the crate( grooves) for the laying of mineral wool

3. At external insulation of the ceiling on the layer of vapor barrier it is recommended to lay a layer of foam plastic 5 cm thick. Thanks to it, the level of the vapor barrier increases many times.
   

   We lay a layer of foam

4. On polystyrene cover the mineral wool layer of 10-20 cm. It is important that when laying between the layers of insulation and the beams of the battens there should not be any gaps.
   

   The process of laying mineral wool in the grooves on the roof

5. If the mineral wool on one side is covered with foil, then the flooring is made so that this part is on top. In this case, an additional layer of waterproofing is not needed. If the mineral wool is ordinary, then top it carefully covered with a layer of waterproofing material overlap, the joints are glued with adhesive tape or tape and fix all the counter-racks.
6. Next, the floor is made of wooden boards, particleboard or OSB.

Combined insulation

Combined insulation is the installation of mineral wool on the ceiling and from the inside, and from the attic space. This method of insulation is typical for rooms in which it is necessary to maintain elevated temperatures for a long time - baths, saunas, steam rooms, etc.

Tips

In conclusion, we should say a few words about the small tricks that will help to avoid numerous problems after the insulation of the ceiling with mineral wool:

• · The fine fibers that make up mineral wool, when exposed to the exposed skin and the respiratory tract cause itching and irritation. To avoid damage to health, you must use special clothing and a respirator.
• · When using a curtain made of metal, it can later turn out that cold air continues to flow through the ceiling through corners. To avoid the occurrence of such a problem, after fixing the metal profile to the ceiling, all corners are carefully poured with mounting foam.
• · Due to inaccuracy in calculations, the thickness of the mineral wool layer may exceed the width of the crate. In this case, additional bars are nailed to wooden beams. If the lath of a metal profile - will have to replace the hangers or reduce the layer of insulation.
• · When laying mineral wool, it is strictly prohibited to rammer and compact it - this leads to a reduction in the number of air bubbles inside the insulation and, as a result, loss of thermal insulation properties.
• · In places where spotlights are installed, it is necessary to provide space for air circulation in order to avoid subsequent problems with their constant burning out.
• · The most suitable for fixing the metal profile are self-cutters of the frequent cross section of hardened steel.
• · Determine the current state of the insulated ceiling with a device such as a thermal imager. When on, the screen displays the cold air passages on the screen in red.
• All of the above is designed to maximally facilitate and optimize the financial and physical costs for the insulation of the ceiling with mineral wool. However, for best results, consult a specialist. They will help to make the correct calculations of the required thickness of the layer of insulation and, based on this, to calculate the total amount of material and its cost. Often such firms directly cooperate with manufacturers of materials for insulation, which can result in additional savings in cash on acquisition.

Video - Warming of ceiling with mineral wool