ACOUSTICAL CEILINGS & WALLS | Ireland

Sierra OP 3781M

Sierra OP 3781M 1200 x 600 x 17 MM

With its fine texture and white appearance Sierra OP meets todays requirements for a modern visual along with a good balance of sound absorption and sound attenuation.


Item # 3781M

Visual Characteristics

Surface Sierra
Edge detail
Board
Grid Face
24/35
Colour White
Dimensions 1200 x 600 mm
Material Type Mineral
Recycled Content (%) 15%

Compatible Suspension Systems

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


Technical Characteristics

Sound absorption (alpha w) 0.90
  View acoustic chart
Sound absorption European Classification A
Sound absorption (NRC) 0.85
Sound Attenuation Dnfw (dB) 27
  View acoustic chart
Sound Reduction Index (Rw)
11
Rain noise test  
Light reflectance (%) 83.39
Humidity resistance (RH%) 95
Thermal conductivity (W/mK) 0.037
Weight (kg/m2) 3.21
Fire reaction
EEA Euroclass A2-s1,d0
Cleanability With a moist cloth
Air Quality ISO 5

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