I ask, our home is the top floor, the summer is too hot, the walls and roof in addition to the use of insulation board, posted their own kind of tin foil, will not be useful?
The traditional ceiling color steel tile composite composite 10 cm thick white polystyrene foam insulation board, the insulation effect is not very good, this is because the thermal conductivity of polystyrene foam board is relatively high (thermal conductivity 0.035W / (m · K) above), plus There is a gap between the foam board and the board, the temperature is very serious, the comprehensive thermal conductivity is generally higher than 0.05. The new polyurethane spray insulation material can be directly sprayed on the color steel tile, the thermal conductivity is low, only 0.022-0.024W / (m · K), insulation effect is 2-3 times the polystyrene board, is the insulation of all insulation materials Especially excellent material. Because in the construction of the use of direct spray molding technology, so that the polyurethane foam layer is not the overall burden of sewing the body to form a complete impermeability, fundamentally put an end to the possible deep Sex. Which play a preservative effect.
At present, the domestic brand is not clear who is using a good insulation board should be made of silica filler, because the BET for the nano-so the effect is better. Energy saving can reach more than 30 percent
