What is the thermal insulation plaster
There are several types of heat-insulating plasters. They differ in composition - first of all, the material used for insulation. What can be included in the composition of thermal insulating plaster?
- Vermiculite. Vermiculite is a mineral belonging to the hydromica group. The physical properties of vermiculite make it possible to create materials capable of withstanding temperatures from -260 to + 1200 ° C.Impressive scatter, is not it? When firing, the mineral increases in volume up to 50 times from the original, while exfoliating. The obtained material is used in the production of heat-resistant and fire-resistant plasters of various grades.
- Perlite. Perlite is a volcanic glass, heated up to 1100 оС.At such temperatures, the mineral begins to swell, becomes porous and acquires unique thermal insulation properties. In the future, this material is used as a heat-insulating additive in insulating plasters - it is included in their composition in the form of fractions with a size of 1 - 10 mm.
- Styrofoam. This is a material created on the basis of polystyrene, belonging to the class of foam plastic. Expanded polystyrene has exceptional thermal insulation properties and is widely used in construction and repair work for the insulation of buildings and premises. Often is a part of heat-insulating plaster.
In addition to the listed materials, other thermal insulation components are often included in the thermal insulating plaster - for example, expanded glass .
As a plasticizer, standard plaster mixes - cement, cement-lime, lime-gypsum, etc., are usually used. The choice of a mixture takes place depending on the specific conditions - for example, cement is more suitable on the street, and lime-gypsum plaster can also be used indoors.
Advantages of
Insulating plaster One of the main advantages of thermal plasters is the possibility of using it for the reconstruction of historic facades. Imagine: an old city center, there is a renovation of a spectacular mansion. Since the house is old, its thermal insulation properties leave much to be desired - but do not leave the same residents freezing further? In such conditions, heat-insulating plaster will help preserve the original appearance, improving the comfort in the building by an order of magnitude.
Another important property of heat-insulating plaster is its fire resistance: the heaters used in plaster will help to keep the walls from heating up to values that are inaccessible to ordinary finishing materials. In addition to fire resistance, heat-insulating plaster often differs and has excellent soundproofing properties.
Also to the advantages it is necessary to attribute the fact that the heat-insulating plaster does not require any special knowledge when applying - know to put it in layers, and that's it.
How to apply heat-insulating plaster
The heat-insulating plaster can be laid manually or mechanically. The machine will be faster - it has been shown by experience that at the same time a person will lay four times less plaster than a machine, however, for the application of the machine method, it will be necessary to erect at least scaffolding.
Heat-insulating plaster is applied in the same way as usual - in layers of 2-3 cm( a number of manufacturers, however, recommend still make the first layer thinner than the rest - about a centimeter thick).The plaster is put on almost any surface used in plastering, the main thing is that the is carefully cleaned with and prepared for application. The laying process is also no different from ordinary plaster. The layer of plaster can be grown up to 15 cm - naturally, under the condition of reinforcement, but more often a layer of 5-10 cm is sufficient, depending on the climate conditions and the concrete building.
Insulating stucco can reduce the cost of heating the building and keep its appearance inviolate. The use of thermal insulation materials makes such plaster an indispensable element in the process of ennobling the premises.