Optra is the soft fibre ceiling in the Armstrong Ceiling Solutions premium range. The selector table (p8) lists NRC up to 0.9, light reflectance 88%, recycled content up to 85% and humidity resistance up to 95% RH; the acoustic table (p28) gives NRC for Pebble White and Classic Black in 15 mm and 20 mm. Sizes and article codes are on the Optra product page (not in this part).

Key features

• Soft fibre ceiling
• Colours: Black and White (selector p6)
• Humidity resistance up to 95% RH
• Cleanability: with dry cloth

Specifications

Reaction to Fire (as printed): Cls0/Cls1 | Sound Absorption (NRC): up to 0.9 (0.85 to 0.95 by sample, p28) | Light Reflectance: 88% | Recycled Content: up to 85% | Humidity Resistance (max RH): 95% RH | Cleanability: with dry cloth | Relative Price Index (brand symbol scale, Min/Mid/Max): Max | Thickness Options Tested: 15 mm; 20 mm | Acoustic Test Basis: Tested in independent third-party quality-assured laboratory per EN ISO 354, EN 20140-9 and ISO 140-9 with ceiling installed over 200 mm and 300 mm cavity; NRC per ASTM C423; Dncw per EN ISO 717-1 (p28)

Standards: BS 476 Part 6 & 7 - Class 0 / Class 1 | ASTM C423 (NRC) | EN ISO 354