Float Glass / Body Tinted Float Glass / HELİO® Bronze    Download the full label     4mm 5mm 6mm 8mm Resistance to fire NPD NPD NPD NPD Reaction to fire A1 A1 A1 A1 External fire behaviour NPD NPD NPD NPD Bullet resistance NPD NPD NPD NPD Explosion resistance NPD NPD NPD NPD Burglar resistance NPD NPD NPD NPD Pendulum body impact resistance NPD NPD NPD NPD Resistance against sudden temperature changes and temperature differentials 40K 40K 40K 40K Wind, snow, permanent and imposed load resistance of the glass unit 4mm 5mm 6mm 8mm Direct airborne sound reduction 29 (-2; -3) dB 30 (-1; -2) dB 31 (-2; -3) dB 32 (-2; -3) dB Thermal properties         U-value (EN 673) 5,7 W/m2K 5,7 W/m2K 5,7 W/m2K 5,6 W/m2K Normal emissivity  (EN 12898)  0,89 0,89 0,89 0,89 Radiation properties         Light transmission and reflection 0,61/0,06/0,06 0,55/0,06/0,06 0,50/0,05/0,05 0,41/0,05/0,05 Solar energy characteristics 0,59/0,06/0,06 0,53/0,05/0,05 0,48/0,05/0,05 0,39/0,05/0,05   NPD : No Performance Determined   Back to product list