Polyfoam – one of the most effective heat insulators which use for warming of various constructions. There are several types of polyfoam, each of which has the features. Therefore for warming of the house it is necessary to choose the most suitable material.
Polyfoam – the uniform elastic material consisting of the small balls which are stuck together among themselves. Contrary to opinion of the inhabitant, plates of this heater do not emit unhealthy styrene of the person to the environment. Release of this substance begins only when heating polyfoam over 90 wasps. Therefore, it cannot be used as heater in baths, saunas, steam rooms.
What polyfoam "warmest"?
The best heater from polystyrenes is that which has the smallest density. It is extruded polystyrene foam. It has the smallest coefficient of thermal conductivity as density of this material is 25-35 kg/m3. According to opinion of experts, 20 cm of extruded polystyrene foam on heatsaving are comparable from 30 cm of polyfoam to density of 15 and 25 kg/m3.
What polyfoam to use for warming of the house?
Any heater at penetration of moisture into it loses part of the heat-insulating properties. Polyfoam, unlike mineral wool and other fibrous materials, malogigroskopichen. It can accept in itself(himself) small amount of moisture: no more than 4% of the volume. Extruded polystyrene foam, thanks to the high density, does not absorb moisture at all. Therefore it is optimum heater for residential building. However, the hygroscopicity of polyfoam with a density of 15, 25 and 30 kg/m3 is so small that when laying plates the mounting of waterproofing is not required. Therefore this material can be used for warming of walls and overlappings too. It is important to choose thickness of cloths of polyfoam correctly. It is produced in plates 1 or 2 m long and 5 or 10 cm thick. For external works it is more preferable to use polyfoam, and for internal – its modification "Penoplex". By means of this material it is possible to warm floor, walls, ceiling, utilities, holding tanks. Cloths of "Penoplex" happen different brands. For the inhabited heated rooms the optimum choice – "Penoplex 31C". In not heated garages, warehouses, fire-dangerous designs, use "Penoplex 35" which has the increased resistance to ignition and is highly effective heat insulator. Heater of the 45 brand is applied in the conditions of dynamic and mechanical load as it is capable to sustain pressure to 0.5 MPas. It is possible to make sure of high heat-insulating qualities of "Penoplex" by practical consideration: if to one party of cloth 5 cm thick to put the hot iron, and to the return – hand, then for several minutes material will interfere with distribution of heat and people will not feel heating of plate.