Even Better Stone
Natural and elegant
Seamless sound absorption in a very strong, extremely flexible system – with a surface sturdy enough to walk on, should you ever come up with that idea. Easy to clean or repair thanks to our reactivation technology implemented in all Even Better systems by Fellert.
Facts
Dimensions & weight
3 mm: 3 mm (1/8 inch) thick. Weight (dry) 0.7 kg/m² (2,2 oz/ft²).
25 mm: 28 mm (1,1 inch) total construction height. Weight (dry, excl. adhesive/mech. fasteners) 3.55 kg/m² (11,6 oz/ft²).
39 mm: 42 mm (1,65 inch) total construction height. Weight (dry, excl. adhesive/mech. fasteners) 4.7 kg/m² (15,4 oz/ft²).
Installation
3 mm: Can be mounted on walls or ceilings. On flat or vaulted surfaces. On most absorbent surfaces, primer may sometimes be needed.
25 mm-39 mm: Can be mounted on walls or ceilings. On flat or vaulted surfaces. Can be mounted with no gaps on existing ceilings or wall surfaces, suspended mounted on plasterboard or suspended directly from a track system.
Light reflectance
3 mm-39 mm: 90,0% per ASTM E1477-98a.
Fire safety classification
3 mm-39 mm: Class A per ASTM E84; B s1d0 per ISO EN 13823.
Cleaning and repair
Can be vacuumed. Spots can be removed with water and sponge. Damaged surfaces can be repaired. See instruction manual for details.
Environment
3 mm-39 mm: 4 g/l (0,03 lbs/gal) VOC (emissions) per ASTM D3960, LEED. Contact Fellert for more information.
Climate
Installation temperatures should be between 15 °C and 32 °C (60 °F and 90 °F) with humidity that does not exceed 70%. Tested for mold growth per ASTM D3273.
Sound absorption
25 mm: NRC 0.45-0.60 per ASTM C423. Alpha W 0,50 (class D)-0,55 (class D) per ISO 354/ISO11654.
39 mm: NRC 0.50-0.60 per ASTM C423. Alpha W 0,55 (class D) per ISO 354/ISO11654.
