What is a heat coil of aluminium foil and thermal insulation of the principle of&Nbsp; foil heat-insulating material is a new kind of insulation products, also known as barrier film, window film, heat insulation foil, remove hot film, reflective window film. Foil insulation sheet from aluminum foil veneer + PE film + fabric + metal coating by hot-melt laminated, heat insulation, waterproof, moisture-proof function. Its extremely low solar radiation absorption coefficient, you can block out most of the heat transfer. Aluminum foil heat coils have been widely used in construction of roofing and facades, excellent thermal insulation effect.
principles of thermal insulation of aluminum foil heat-insulating sheet:
heat transfer in heat exchange performance of buildings in three ways: conduction heat + convection <25%, radiant heat >75%. After a tile roof in the summer the temperature rises, a lot of radiant heat into the rooms temperatures continue to rise, working and living environment is extremely uncomfortable. Solar radiation absorption coefficient of the heat coil of aluminium foil (normal radiation emissivity) 0.07, radiation heat less. Aluminum foil insulation sheet compared with other insulation materials, laying insulation sheet of aluminum foil large, thermal bridges (thermal bridge) well, play to great effect in the summer, in winter with good heat preservation function, so as to really achieve the purpose of energy saving.
1, heat transmission (without thermal insulation membrane):--infrared magnetic waves--the heat of the Sun hit the tiles to make the temperature – tile heat emitted heat energy – which hit the in-situ roofing make temperatures--in-situ roofing heat radiate heat – indoor temperature continued to rise.
2, heat transmission (with film):--infrared magnetic waves--the heat of the Sun hit the tiles to make the temperature – tile heat emitted heat energy – which hit the aluminum foil so that surface temperatures--foil emission rates are very low, radio-a small amount of heat energy-the fee to maintain a comfortable temperature.