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Data - Absorption

A collection of absorption co-efficients of various materials and products.  Use Ctrl + F to search.  Use data with caution.
Showing 108 items
TypeMaterial63 Hz125 Hz250 Hz500 Hz1 KHz2 KHz4 KHzData SourceNotesPhoto
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TypeMaterial63 Hz125 Hz250 Hz500 Hz1 KHz2 KHz4 KHzData SourceNotesPhoto
Standard material Gypsum board on 50x100mm studs  0.29 0.10 0.05 0.04 0.07 0.09 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Walls  
Standard material 12mm plywood in framework with 30mm airspace containing glasswool - 0.40 0.20 0.15 0.10 0.10 0.05 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material 5mm plywood on battens, 50mm airspace - 0.40 0.35 0.20 0.15 0.05 0.05 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material 50mm mineral wool (medium Density) - 0.2 0.45 0.70 0.8 0.8 0.8 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Brickwork - 0.05 0.04 0.02 0.04 0.05 0.05 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Perforated Helmholtz absorber using 200mm cavity and mineral wool damping, 0.79% perforation - 0.98 0.8 0.52 0.21 0.16 0.14 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Plasterboard on 50mm battens - 0.29 0.10 0.05 0.04 0.07 0.09 Building Bulletin 51 (UK) published in 1976 Walls  
Standard material Glass, heavy plate  0.18 0.06 0.04 0.03 0.02 0.02 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Glass  
Standard material Chipboard on frame, 50mm airspace with mineral wool - 0.12 0.04 0.06 0.05 0.05 0.05 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material Heavy carpet plus heavy foam underlay on concrete - 0.15 0.25 0.50 0.60 0.70 0.80 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Double glazing, 2-3mm glass, 10mm air gap - 0.15 0.05 0.03 0.03 0.02 0.02 Building Bulletin 51 (UK) published in 1976 Glass  
Standard material Rough Concrete  0.02 0.03 0.03 0.03 0.04 0.07 IIstein Berlin 1973 (Odeon) Masonry Walls  
Standard material Fibre glass or rockwool blanket, 48kg/m3, 75mm thick  0.43 0.97 1.0 1.0 1.0 1.0 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material 4mm glass  0.30 0.20 0.10 0.07 0.05 0.02 Lord & Templeton Glass and Glazing  
Standard material Plaster on brick - 0.01 0.01 0.02 0.03 0.04 0.05 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Painted concrete - 0.01 0.05 0.06 0.07 0.09 0.08 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Linoleum, asphalt, rubber or cork tile on concrete  0.02 0.03 0.03 0.03 0.03 0.02 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material Fibre glass or rockwool blanket, 24kg/m3, 100mm thick  0.46 1.0 1.0 1.0 1.0 1.0 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Plasterboard on frame, 100mm airspace with glasswool - 0.08 0.11 0.05 0.03 0.02 0.03 Building Bulletin 51 (UK) published in 1976 Walls  
Standard material Brickwork, 10mm flush pointing - 0.08 0.09 0.12 0.16 0.22 0.24 Danish Buildings Research Institute (derived from other sources - ODEON) Walls  
Standard material Solid timber door  0.14 0.10 0.06 0.08 0.10 0.10 IIstein Berlin 1973 (Odeon) Panels and Doors  
Standard material Chipboard on 16mm battens - 0.20 0.25 0.20 0.20 0.15 0.20 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material Wood platform with large space beneath  0.40 0.30 0.20 0.17 0.15 0.10 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material Plywood, hardwood panels over 25mm airspace on solid backing with absorbent material in air space - 0.40 0.25 0.15 0.10 0.10 0.05 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material Carpet, 6mm thick, on underlay  0.03 0.09 0.20 0.54 0.70 0.72 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material Plasterboard on frame, 100mm airspace - 0.30 0.12 0.08 0.06 0.06 0.05 Building Bulletin 51 (UK) published in 1976 Walls  
Standard material Smooth concrete, painted or glazed  0.01 0.01 0.01 0.02 0.02 0.02 IIsetin Berlin 1973 (Odeon) Masonry walls  
Standard material Plaster, gypsum or lime, smooth finish; on concrete block  0.012 0.09 0.07 0.05 0.05 0.04 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Walls  
Standard material Fibre glass or rockwool blanket, 16kg/m3, 50mm thick  0.17 0.45 0.80 0.89 0.97 0.94 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Plywood, hardwood panels over 25mm airspace on solid backing  - 0.30 0.20 0.15 0.10 0.10 0.05 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material Wood floor - 0.15 0.11 0.1 0.07 0.09 0.08 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Fibre glass or rockwool blanket, 16kg/m3, 25mm thick  0.12 0.28 0.55 0.71 0.74 0.83 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Window glass - 0.35 0.25 0.18 0.12 0.07 0.04 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Fibre glass or rockwool blanket, 16kg/m3,100mm thick  0.43 0.86 1.0 1.0 1.0 1.0 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Hardwood, mahogany - 0.19 0.23 0.25 0.30 0.37 0.42 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material 12mm plywood in framework with 30mm airspace behind - 0.35 0.20 0.15 0.10 0.05 0.05 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material Plasterboard on cellular core partition - 0.15 0.10 0.00 0.00 0.04 0.05 Building Bulletin 51 (UK) published in 1976 Walls  
Standard material Curtains of close-woven glass mat hung 50mm from wall - 0.03 0.03 0.15 0.40 0.5 0.5 Danish Buildings Research Institute (derived from other sources - ODEON)   
Standard material Fibre glass or rockwool blanket, 24kg/m3, 50mm thick  0.27 0.54 0.94 1.0 1.0 1.0 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material 20mm dense veneered chipboard over 100mm airgap - 0.03 0.05 0.04 0.03 0.03 0.02 Danish Buildings Research Institute (derived from other sources - ODEON)   
Standard material Breeze block - 0.25 0.4 0.6 0.5 0.75 0.5 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Plaster on brick - 0.013 0.015 0.02 0.03 0.04 0.05 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Ventilation grille per m2  0.60 0.60 0.60 0.60 0.60 0.60 Danish Buildings Research Institute (derived from other sources - ODEON) Other  
Standard material Fibre glass or rockwool blanket, 48kg/m3, 50mm thick  0.3 0.8 1.0 1.0 1.0 1.0 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Curtains (cotton draped to half area) - 0.07 0.31 0.49 0.81 0.66 0.54 Acoustics & Psychoacoustics Focal Press 2001   
Standard material Wood hollowcore door  0.30 0.25 0.15 0.10 0.10 0.07 Building Bulletin 51 published in 1976 Panels and Doors  
Standard material 13mm mineral tile suspended 500mm below ceiling  0.75 0.70 0.65 0.85 0.85 0.90 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Ceilings  
Standard material Varnished wood joist floor  0.15 0.12 0.10 0.07 0.06 0.07 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material Hard surfaces (brick walls, plaster, hard floors, etc.)  0.02 0.02 0.03 0.03 0.04 0.05 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Walls  
Standard material Walls (12mm plasterboard) - 0.29 0.1 0.05 0.04 0.07 0.09 Acoustics & Psychoacoustics Focal Press 2001   
Standard material Padded seat (unoccupied) - 0.1 0.2 0.25 0.3 0 0.3 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Floor (wood joist) - 0.15 0.11 0.10 0.07 0.06 0.07 Acoustics & Psychoacoustics Focal Press 2001   
Standard material Smooth unpainted concrete  0.01 0.01 0.02 0.02 0.02 0.05 IIstein Berlin 1973 (Odeon) Masonry walls  
Standard material Carpet, heavy, on 1.35kg/m2 hair felt or foam rubber  0.08 0.24 0.57 0.69 0.71 0.73 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material 20mm dense veneered chipboard over 250mm airgap containing 50mm mineral wool - 0.12 0.10 0.08 0.07 0.1 0.08 Danish Buildings Research Institute (derived from other sources - ODEON)   
Standard material Plaster, gypsum or lime, smooth finish; on brick  0.013 0.015 0.02 0.03 0.04 0.05 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Walls  
Standard material Wood boards on on joists or battens - 0.15 0.20 0.10 0.10 0.10 0.10 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material T & G board on frame, 50mm airspace with mineral wool - 0.25 0.15 0.10 0.09 0.08 0.07 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material Fibre glass or rockwool blanket, 16kg/m3, 75mm thick  0.30 0.69 0.94 1.0 1.0 1.0 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Wood floor on joists  0.15 0.11 0.10 0.07 0.06 0.07 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material Acoustic timber wall panelling - 0.18 0.34 0.42 0.59 0.83 0.68 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material Smooth marble or terrazzo slabs - 0.01 0.01 0.01 0.01 0.02 0.02 Danish Buildings Research Institute (derived from other sources - ODEON) Floors  
Standard material Broad band absorber consisting of 25mm fibreglass slab at mouth of 150mm cavity - 0.67 0.98 0.98 0.93 0.9 0.96 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Cork floor tiles (3-4 inch thick) - glued down   0.08 0.02 0.08 0.19 0.21 0.22 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material 100mm Acoustic Foam - 0.2 0.7 0.99 0.99 0.99 0.99 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Carpet on concrete - 0.05 0.06 0.14 0.37 0.6 0.65 Acoustics & Psychoacoustics Focal Press 2001   
Standard material Smooth unpainted concrete  0.01 0.01 0.01 0.02 0.02 0.05 IIstein Berlin 1973 (Odeon) Masonry Walls  
Standard material Fibre glass or rockwool blanket, 24kg/m3, 75mm thick  0.28 0.79 1.0 1.0 1.0 1.0 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Acoustic door, steel fram, double seals, absorbant in airspace, Double sheet steel skin.  0.35 0.39 0.44 0.49 0.54 0.57  Panels and Doors  
Standard material Fibre glass or rockwool blanket, 48kg/m3, 100mm thick  0.65 1.0 1.0 1.0 1.0 1.0 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Plaster on lath - 0.14 0.1 0.06 0.05 0.04 0.03 Acoustics & Psychoacoustics Focal Press 2001   
Standard material Fibre glass or rockwool blanket, 60kg/m3, 25mm thick  0.18 0.25 0.68 0.85 1.0 1.0 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Plasterboard on 25mm battens - 0.31 0.33 0.14 0.10 0.10 0.12 Building Bulletin 51 (UK) published in 1976 Walls  
Standard material 5mm needle felt stuck to concrete - 0.01 0.02 0.05 0.15 0.30 0.40 Danish Buildings Research Institute (derived from other sources - ODEON)   
Standard material Fibre glass or rockwool blanket, 60kg/m3, 50mm thick  0.25 0.83 1.0 1.0 1.0 1.0 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Porous concrete blocks (no surface finish) - 0.05 0.05 0.05 0.08 0.14 0.2 Danish Buildings Research Institute (derived from other sources - ODEON) Walls  
Standard material Timber boards, 100mm wide, 10mm gaps, 500mm airspace with mineral wool - 0.31 0.33 0.14 0.10 0.10 0.12 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material Polyurethane foam, 27kg/m3, 50mm thick  0.08 0.22 0.55 0.70 0.85 0.75 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Concrete or terrazzo  0.01 0.01 0.01 0.02 0.02 0.02 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material Windows (float glass) - 0.35 0.25 0.18 0.12 0.07 0.04 Acoustics & Psychoacoustics Focal Press 2001   
Standard material Water surface, ie swimming pool  0.01 0.01 0.01 0.01 0.02 0.02 Hille Auditorium Seating Ltd (laboratory test data) Other  
Standard material Vinyl flooring - 0.03 0.04 0.05 0.04 0.05 0.05 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Glazed tile/marble  0.01 0.01 0.01 0.01 0.02 0.02 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material Plaster, gypsum or lime, smooth finish; on lath  0.014 0.10 0.06 0.04 0.04 0.03 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Walls  
Standard material Fibre glass or rockwool blanket, 24kg/m3, 25mm thick  0.11 0.32 0.56 0.77 0.89 0.91 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Acoustic material  
Standard material Cotton Drapes draped to half area - 0.07 0.37 0.49 0.65 0.54 - Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material 9mm plasterboard over 20mm air gap - 0.3 0.2 0.15 0.05 0.05 0.05 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Plasterboard on battens, 18mm airspace with glass wool - 0.30 0.20 0.15 0.05 0.05 0.05 Building Bulletin 51 (UK) published in 1976 Walls  
Standard material 20mm dense veneered chipboard over 200mm airgap - 0.06 0.10 0.08 0.09 0.07 0.04 Danish Buildings Research Institute (derived from other sources - ODEON)   
Standard material Foam backed carpet on concrete - 0.05 0.16 0.44 0.7 0.6 0.4 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material 12mm wood panelling on 25mm battens - 0.31 0.33 0.14 0.10 0.10 0.12 Building Bulletin 51 (UK) published in 1976 Wood panelling  
Standard material Concrete block painted  0.01 0.05 0.06 0.07 0.09 0.08 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material Ordinary window  0.35 0.25 0.18 0.12 0.07 0.04 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Glass  
Standard material 2x plasterboard on frame, 50mm airspace with mineral wool - 0.15 0.10 0.06 0.04 0.04 0.05 Building Bulletin 51 (UK) published in 1976 Walls  
Standard material Acoustic plaster, 10mm thick sprayed on solid wall  0.08 0.15 0.30 0.50 0.60 0.70 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Walls  
Standard material 6mm glass  0.10 0.06 0.04 0.03 0.02 0.02 Lord & Templeton Glass and Glazing  
Standard material Double glazing, 2-3mm glass, 10mm air gap  0.15 0.05 0.03 0.03 0.02 0.02 Building Bulletin 51 published in 1976 Glass and Glazing  
Standard material Perforated Helmholtz absorber using 100mm cavity and mineral wool damping, 0.79% perforation - 0.4 0.84 0.0 0.19 0.14 0.12 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Plate glass - 0.18 0.06 0.04 0.03 0.02 0.02 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Plaster, lime or gypsum on solid backing - 0.03 0.03 0.02 0.03 0.04 0.05 Building Bulletin 51 (UK) published in 1976 Walls  
Standard material 13mm mineral tile direct fixed to floor slab  0.10 0.25 0.70 0.85 0.70 0.60 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Ceilings  
Standard material Solid timber door  0.14 0.10 0.06 0.08 0.10 0.10 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Walls  
Standard material Carpet, 5mm thick, on hard floor  0.02 0.03 0.05 0.10 0.30 0.50 Engineering Noise Control - D A. Bies and C H. Hansen, 3rd edition Floors  
Standard material 6mm glass - 0.1 0.06 0.04 0.03 0.02 0.02 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material LF panel absorber - 0.28 0.22 0.17 0.09 0.1 0.11 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material 50mm Acoustic Foam - 0.08 0.25 0.60 0.90 0.95 0.9 Creative Recording Volume 2 - Sanctuary Publishing 1999   
Standard material Plywood mounted solidly - 0.05 0.00 0.05 0.00 0.05 0.05 Building Bulletin 51 (UK) published in 1976 Wodd panelling  
Standard material Ventilation grille (per m2) - 0.6 0.6 0.6 0.6 0.6 0.6 Danish Buildings Research Institute (derived from other sources - ODEON)   
Showing 108 items