Consider the main criteria affecting the choice of a variety of insulation. We will analyze the validity of the use of mineral wool or foam in specific situations.
1
Minvata passes evapoable water 10 times better than polystyrene foam. But the walls always have a multi-layer structure, so their total vapor permeability depends on the material with a minimum indicator. It turns out that various types of insulation slightly affect the final ability to "breathe".
2
Polymer bases poorly pass water. If they close mineral wool, then the resulting condensate will not be able to evaporate - the thermal insulation properties of the material will be lost. So, polymer structures cannot be sought by minvata. Warming house, you should follow the rules:
From the side of the house, high-quality waterproofing is arranged;
The insulation with greater vaporizolation is located closer to the outer surfaces.
Polyfoam does not accumulate water, but does not miss - the steam penetrated from the room can be able to leave only through the joints.
3
All mineral wool fire-resistant, expanded polystyrene melting easily and can burn independently. Although modern foam and contains the imperative imperative, their action is limited, and over time it is lost completely. Fiber materials on a basalt basis withstand heating to 1000 ° C.
4
The polystyrene foam is convenient to cut and grind, it is elastic and durable. But it is very difficult to stick it without bridges of cold. The task is solved with the help of M-shaped edges on the sheets of material. Minvat elastic and dense only in mats, but closes the slot without gaps.
5
Indicators of thermal conductivity in materials are almost the same. However, this refers to a basalt wool in the form of plates. Rolled insulation becomes loose after rolling and lags behind the foam of thermal insulation. The fiber material due to convection produces warm air, the premises covered by minvata cools faster than protected by polystyrene foam.
6
The price of basalt wool and foam depends on their density and is in the same time the same range. The polystyrene foam under the layer of the protective coating serves decades, for the same period, the Ministry ofVat from volcanic rocks is calculated. The durability of inexpensively fiber insulation rarely exceeds 20-25 years: the accumulated moisture gradually reduces its thermal insulation parameters.
Foundations and other designs below the soil level;
Horizontal protection against freezing of the underground part of the building;
Brick, block walls outside and inside;
Insulation of flat roofs;
Concrete floors and interhesive floors;
Various packaging, isothermal vans and freezers.
When selecting insulation, concrete conditions and priorities are taken into account. In one case, it is better to be a foam, and in another situation it is impossible to do without mineral wool.
Share advice:"Polyfoam or Minvata - what is better"
If you plan insulation from the inside, then the most important criterion is environmentally friendly and harmlessness for a person. Take only high-quality insulation.
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So what to choose? And if the insulation is planned to be used indoors, what criteria for choosing to watch?
If you plan insulation from the inside, then the most important criterion is environmentally friendly and harmlessness for a person. Take only high-quality insulation.
How many people, so many opinions. Everyone chooses its. Although I recommend still stone wool.