Providing & fixing Magnesite Binded Fibrecrete Acoustic Panels made of Pine Wood Fibre 28mm thick 1228mm x 618mm Fabrico Ribbed Kerf Edge, inserted in PVC channel ‘H’ Spline. ‘H’ Spline to be Screw fixed @ 200mm vertically/ horizontally @ 618mm c/c on GI metal frame of 50 x 50mm comprising of Floor & Stud Channel making a grid of 618 x 618mm c/c. The frame is to be made in proper line after leveling. The panels will be backed with 50mm Effusio Wool 1000 GSM/ 50mm Glasswool 32 kg/cuM inserted inside the grid of 618 x 618mm which in total will comprise of minimum NRC 0.80 as per IS: 8225/ ISO: 354/ ASTM: 423 – 90 a. Acoustic Panel base material should meet the Stringent Fire test requirement having Class ‘P’ rating for Ignitability test as per BS 476 part 5; Fire Propagation index, I = 4.11 [lower the better] as per BS 476 part 6 and Class ‘1’ rating as per BS 476 part 7 for Surface Spread of Flame test. Class ‘P’ and Class ‘1’ are the highest rating. All joints of the tiles must in perfect line and level.
Physical Strength |
Regular in Structure, Durable, Stable. |
Suitability |
Environment Friendly; Ineffective to Fungus, Termites,
Insects; suitable for Sound Biological construction.
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Fire Tests |
Tested by CBRI Roorkee, Uttarakhand |
Ignitability |
BS 476 part 5 - ‘P’ not easily ignitable |
Fire Propagation |
BS 476 part 6 – Index ‘I’ = 4.11 |
Surface Spread of Flame |
BS 476 Part 7 – Class 1 |
Non Combustibility |
– ISO 1182 – Avg. mass loss = 52.27% |
Thermal Conductivity |
k= 0.065 W/mK |
Weathering Test |
Tested by SIIR, Delhi. ‘NO delamination and Damage
observed after the Test as per IS 9307’.
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Plain
Ribbed