Sound Absorption: carpet_on_concrete
Sound absorption coefficients and NRC ratings for building materials — fiberglass, carpet, concrete, drapery, ceiling tile, etc. per ASTM C423 and ASHRAE Ch.49
| material | product variant | alpha 1000 (dimensionless) | alpha 125 (dimensionless) | alpha 2000 (dimensionless) | alpha 250 (dimensionless) | alpha 4000 (dimensionless) | alpha 500 (dimensionless) | category | description | mounting | nrc (dimensionless) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| carpet_on_concrete | thin_unpadded | 0.37 | 0.02 | 0.6 | 0.06 | 0.65 | 0.14 | flooring | Carpet (medium weight) directly on concrete slab | Type A | 0.29 |
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acoustic_panel_fabric_wrapped2 rowsbrick_painted1 rowbrick_unglazed1 rowcarpet_on_foam_pad1 rowceiling_tile_fiberglass_high_nrc1 rowceiling_tile_mineral_fiber_high_nrc1 rowceiling_tile_mineral_fiber_standard1 rowconcrete_block_coarse1 rowconcrete_block_painted1 rowconcrete_poured_painted1 rowconcrete_poured_unpainted1 rowdrapery_heavy_pleated1 row