... draining design,Durable Natural sound barriers A noise barrier (also called a soundwall, sound berm, sound barrier, or acoustical ... 3) Weight (Kg/M2): 0.8, 1.2, 1.4, 1.6, 1.9, 2.2, 2.4, 2. ... 65mPa Elongation at break: >100% Specific heat: 1.16J/kgkHeat deflection temperature: 140oCSoundproof index:6mm--29dB ... ,8mm--31dB,10mm-32dB 12mm--34dBApplications: 1) Roofing light sheet and sunshade for office ...