Supply and Fixing of 3-Layer Sound Absorption System on Side WallSupply and installation of a three-layer sound absorption system on the side wall of the specified area to enhance acoustic performance by minimizing low-frequency noise transmission,airborne sound,and internal echo/reverberation.Layer 1: Low-Frequency Sound AbsorberMaterial: 20 mm thick Polyurethane-based sound absorber composed of both open-cell and closed-cell acoustic foams.Noise Reduction Coefficient (NRC): Minimum 0.95Density: 100 kg/m³Fixing Method: Fixed directly to the side wall using Fevicol Heatx adhesive and nails.Brand/Model: MMT Acoustix – BassBloc (Bass Absorber) or approved equivalentLayer 2: Vinyl Noise Barrier MembraneMaterial: 2.5 mm thick vinyl noise barrier membrane system made from rubber and resins.Sound Transmission Class (STC): Up to 28 dBDensity: 2100 kg/m³Fixing Method: Installed over Layer 1 using Fevicol Heatx adhesive.Brand/Model: MMT Acoustix – Sound Blanket (MLV Noise Barrier) or approved equivalentLayer 3: Acoustic Foam PanelsMaterial: 2-inch thick acoustic foam panels of approved size and shape, designed to absorb echo, reverberation, and sound reflections.Noise Reduction Coefficient (NRC): Minimum 0.95Fixing Method: Installed over Layer 2 using Fevicol Heatx adhesive.Brand/Model: MMT Acoustix or approved equivalent.
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Supply and Fixing of 4-Layer Sound Absorption System on CeilingSupply and installation of a four-layer acoustic treatment system on the ceiling to enhance overall soundproofing and acoustic absorption, targeting both low-frequency noise isolation and reduction of airborne sound, echo, and reverberation.Layer 1: Low-Frequency Sound Absorber (Base Layer on Ceiling)Material: 20 mm thick polyurethane-based sound absorber, composed of open-cell and closed-cell acoustic foams.Noise Reduction Coefficient (NRC): ≥ 0.95Density: 100 kg/m³Fixing Method: To be fixed directly on the ceiling using Fevicol Heatx adhesive and nails.Brand/Model: MMT Acoustix – BassBloc (Bass Absorber) or approved equivalentLayer 2: Vinyl Noise Barrier MembraneMaterial: 2.5 mm thick vinyl noise barrier membrane system made from rubber and resins.Sound Transmission Class (STC): Up to 28 dBDensity: 2100 kg/m³Fixing Method: To be fixed over Layer 1 using Fevicol Heatx adhesive.Brand/Model: MMT Acoustix – Sound Blanket (MLV Noise Barrier) or approved equivalent.Layer 3: Suspended Acoustic Cavity with Polyester WoolMaterial: 18 mm thick marine plywood framework suspended 2 feet below the existing RCC ceiling using a marine-grade wooden structure.Cavity Fill: The depth of the framework shall be completely filled with 50 mm thick, 1500 gsm polyester wool.Noise Reduction Coefficient (NRC) of Polyester Wool: ≥ 0.98Layer 4: Polyester (PET) Acoustic PanelsMaterial: 9 mm thick PET acoustic wall panels.Noise Reduction Coefficient (NRC): ≥ 0.30Fixing Method: Fixed over Layer 3 using Fevicol Heatx adhesive.Brand/Model: MMT Acoustix – Echsorbix (PET Acoustic Wall Panels) or approved equivalent.
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Supply and Fixing of Acoustic Door with FrameSupply and installation of an acoustic door with frame, designed to provide effective sound insulation for enclosed spaces.Door Construction:Core Material: 18 mm thick marine plywood in a sandwich configurationInfill: 50 mm thick, 1500 gsm polyester fibre for enhanced acoustic insulationOuter Covering:Layer 1: 20 mm thick BassBloc sound absorberLayer 2: 2-inch thick acoustic foam panelPerimeter Sealing:Fix soundproof rubber seals along all four edges of the door for airtight acoustic sealingSize: 90 cm x 200 cmHardware: Includes standard steel lock and handleDoor Frame:Material: 18 mm thick marine plywoodFinish & Installation: Properly finished, leveled, and secured to ensure perfect fit with acoustic sealing performanceAll materials used shall be from approved brands only.Workmanship shall ensure tight sealing,durability,and soundproofing performance.The complete assembly must comply with standard acoustic door design practices.
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Supply and Installation of Acoustic Floor CarpetSupply and installation of an 18 mm thick acoustic floor carpet to enhance sound absorption and reduce impact noise in the designated area.Material: 18 mm thick acoustic floor carpetColor & Make: To be of approved color and brand as per the Engineer-in-charge.Surface Preparation: The existing floor shall be cleaned, dried, and prepared for proper adhesionFixing Method: The carpet shall be fixed using approved special floor adhesiveAdhesive Brand: Solutia or approved equivalentAll materials must be fire-retardant, durable, and compliant with acoustic performance standardsInstallation must ensure seamless finish and proper edge trimmingWorkmanship shall ensure firm adhesion without air bubbles or wrinkles.
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