Installation of mineral wool - a find for heat-loving

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Acquaintance with mineral wool

Mineral wool is a fibrous material obtained from melts of rocks, as well as various metallurgical slags and their mixtures. Most often, rocks are used, due to which the material is of a very high quality, the service life is greatly increased.

Mineral wool has its drawbacks, like any building material - it is afraid of moisture. Yes, it can be argued that stone-made material, like stone, is not afraid of water, but it is not. With a constant effect of water on the mineral wool, it soaks, and therefore loses its ability, as a heater.

Do not think that being under the roof, it is protected from moisture, because when temperature drops, it is known that condensation forms. It absorbs into cotton wool, and in cold weather its fibers expand, reducing both the quality and the life of the material.

However, for the thermal insulation, the laying of mineral wool is one of the most optimal options. It is relatively durable, resistant to moisture absorption( with short exposure), to deformation and has a rather high sound insulation. Its very good quality is fire resistance, it can withstand temperatures up to +1000 ° C.

Depending on what kind of roof you have, different products from mineral wool are used. For example, for pitched roofs or mansards, mineral wool of lower density, cached with a glass-fiber or foil, is used, and plates of the highest density will be useful in the construction of a flat roof.

Laying minvats - a few tips before running

It does not take much effort to figure out how to lay minivat. Fix the thermal insulation over the crate or between the rafter "legs."But if the building has already been built completely, thermal insulation can only be done from the inside.

In order for the mineral wool to retain its quality and durability, it must definitely ensure the with good ventilation .On the inside, a layer of vapor barrier film is laid, it should serve as a gap between mineral wool and roofing. You can also put a simple layer of polyethylene film or foil, instead of vapor barrier.

It is most convenient to use this material in the form of plates, and not just a shapeless mass. Due to the wedge-shaped or rectangular shape, the slabs fit very well with each other and do not create difficulties in laying.

If there is no attic in the house, only the attic space can be insulated. In these cases, mineral wool, as well as slag, expanded clay and other loose materials are laid.

Mounting of mineral wool - nothing is missing

It is important to fix all the cracks in the ceiling, near the pipes or near the ventilation ducts for a start. For this purpose, installation foam is ideal, but it is possible to apply a patch or felt.

Avoid placing mineral wool directly on the hoses of utility lines, it is best to simply wrap them with foam polyethylene. Do not, including, obscure the insulation of wires or cables. The wiring always passes over the insulating material or is simply attached to the roof itself.

If bulk materials are used for thermal insulation, a lime or clay mortar must be applied from above the insulation. Most often the fixing of the mineral wool is from the inside, and it is better to do this before installing the roof. But, unfortunately, the weather does not always allow it.

So, the installation of mineral wool is carried out in the following way: usual nails or screws, as well as special types of glue or mastic, are used, strips can be laid on strips or in struts. Often the fixing of mineral wool occurs exactly in the distance between the beams, being fixed at the expense of the cord.

To fix the cord to the beams, the nails are beaten about 15 centimeters away, the nails are left outside by 5 millimeters so that the cord can be wound. Plates are stacked upward along the slope. When all the plates are laid, the nails are completely driven in order not to cause problems in the future with the laying of the vapor barrier. There is nothing difficult in mastering science, how to strengthen minvat.

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