Physical Properties

Property Unit
Apparent density δR 2350 kg/m3
Linear coefficient of expansion α (m/m x K) 30-35 x 10-6 (at 20 - 50 degrees)
Modulus of elasticity E dependent of the temperature
Vapour conductivity λD 1.6 x 10-5 mg / m * h * Pa
Vapour diffusion resistance factor µ 5 x 104 at d=30 mm
Thermal conductivity λ 0.7 W / m K
Specific heat C 1.01 x 103 J / kg K
Thermal transition coefficient Λ 27.8 W / m2 K
Electric conductivity r = 1010 bis 1012 Ω x cm
Absorption coefficient for sunrays 0.93 W / m2
Internal damping η 0.18
Impact sound reduction 14dB (35mm mastic asphalt on a separating layer)
Fire behaviour according DIN EN 13501 bfl-S1
Thermoplastic behaviour Penetration depth according DIN EN 12697-20