ACOUSTICAL CEILINGS & WALLS | Guinea-Bissau

Dune Max 3929M

INFORMATION

Dune Max produces a calculated reverberation time of 0.60 seconds for a typical (200m3) classroom. This is an optimum result as defined by the Department of Education (England and Wales). Dune Max is now fully recyclable. For details of the "Armstrong re-cycling programme" - please contact your local Armstrong sales office.


Item # 3929M


Visual Characteristics

Surface Dune Max
Edge detail
Board
Grid Face
24/35
Colour White
Dimensions 1200 x 600 mm
Material Type Mineral

Compatible Suspension Systems

Exposed 24mm Grid System Universal Main Runners 24
Exposed 35mm Grid System Main Runners 35


Sustainability Characteristics

C2C Certification C2C Bronze
VOC Emissions A
Armstrong Recycling Programme Y
Recycled Content (%) 46%
Recyclable (%) 100%
Formaldehyde Emissions E1

Technical Characteristics

Sound absorption (alpha w) 0.65
Sound absorption European Classification C
Sound absorption (NRC) 0.60
Sound Attenuation Dnfw (dB) 35
Sound Reduction Index Rw(db)
17
Rain noise test  
Light reflectance (%) 84
Humidity resistance (RH%) 99
Thermal conductivity (W/mK) 0.060
Weight (kg/m2) 4.5
Fire reaction
EEA Euroclass A2-s1,d0
Cleanable with a dry cloth Cleanability With a dry cloth

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