Polyfoam is a thermal insulation material used for insulation of houses, commercial buildings, outbuildings and garages.
Contents of
- Technical data of
- foam Advantages of
- Disadvantages of
- Features of use of
- foam
video The structure of raw materials is a welded bead with small spacing between adjacent elements. The material is distinguished by its affordable cost and excellent operational properties.
Technical characteristics of the foam
The foam is used as a thermal insulation due to its low thermal conductivity. The close arrangement of the pellets and the presence of clogged air between the raw material components ensure a high-quality heat retention inside the premises. External or internal( suitable for roofs, attics, balconies), insulation of buildings with foam can significantly reduce heat loss during the autumn and winter periods. The following technical characteristics of the foam are distinguished( depending on the brand):
- density: 8 to 25 kg / cc.m( determines the strength);
- water absorption: up to 4%( minimally absorbs water even with direct contact);
- compressive strength: from 0.04 to 0.16 MPa( well retains its shape);
- bending strength: from 0.06 to 0.25 MPa( slightly prone to damage and brittleness);
- burning time: about 4 s( not flammable);
- vapor permeability: 0.05 mg /( m * h * Pa)( minimally conducts air).
The special composition of the material makes it completely safe to use. Environmentally friendly raw materials do not emit harmful particles or odors, do not require weathering before installation. High biological stability ensures long-term preservation of the material: rodents, insects will not damage the foam. Fungus between the granules or in the gap between the wall and the heater is not formed.
Advantages of
According to building codes, the use of foam plastic is permissible in humidity zones I-III and climatic regions I-V( with normal, medium and low humidity).Extended areas of use allow to conduct insulation with foam almost in any city. Other advantages of the material include:
- Fire safety;
- Ease of installation( the possibility of independent work);
- Low cost;
- Wide choice for different purposes by brands;
- Large operating temperature range: -60 to +80 degrees;
- Light weight( can be used for old buildings);
- Long shelf life.
Disadvantages of
One of the disadvantages of foam plastic is the low air conductivity. Because of this feature, the wall, to which the heater is attached, can suffer. The accumulation of steam and the formation of condensation will lead to the formation of mold, which will negatively affect the condition of the structure. To solve the problem, it will be necessary to create a qualitative supply ventilation.
Features of the use of foam
To study the nuances of fixing, selection of auxiliary materials( linings, glue), you should study video lessons on the insulation of facades with foam plastic. Particular attention should be given to joining and fastening sheets, creating proper ventilation.
Detailed photos reports on the insulation of buildings from different materials( brick, concrete) will help determine the rules for the preparation and fixing of foam. In the case of a heater already available( for example, an old mineral wool), immediately remove the spoiled material and clean the walls thoroughly.
Special mixtures must be used for bonding. Choose the right glue will help customers' reviews, a description of the technical parameters of the adhesive composition( safety, elasticity in the frozen state).Additionally, fix the sheets on the wall with dowels. On top of foam plastic experts recommend installing reinforcing mesh of fiberglass: it will strengthen the strength of the layers. The work with the heater is finished with finishing.
