... 2,Durability:by ufilizing KYNAR-500resin coating process,results in an effective barrier against corrosion,alkali,UV,sunlight,humidify, ... salf,tropical weather and freezing weather climates in addition to it's effective barrier against external factors ... decibel barrier,by using either fiberglass insulation or poly-foam in-betweem the panels and the steuctural wall,will effectively ...