Building insulation, heat insulation is important as the materials used for energy is important because of the insulation to suppress exporting heat from one side to the other side for a country which has a tropical climate. High temperature of external air. Therefore, to make indoor air conditions appropriate to crisis and living comfort. To reduce the heat in the building. The use of insulation for Thailand, it's main purpose is to prevent heat transfer from outside to inside the building where the insulation must consider performance in thermal protection. Insulation characteristics. To stretch shrinking when it gets hot. The weight of water and humidity, density and durability like if the insulation thickness is relatively little remaining space from the installation, but the ability to control the lower temperatures, so the selection should take into consideration the need to install. Temperature range in use and how to use it (and the Board of pakhun thanan Chai wonki. 2548 (2005))
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