Floor Materials	125 Hz	250 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz
concrete or tile	0.01	0.01	0.015	0.02	0.02	0.02
linoleum/vinyl tile on concrete	0.02	0.03	0.03	0.03	0.03	0.02
wood on joists	0.15	0.11	0.10	0.07	0.06	0.07
parquet on concrete	0.04	0.04	0.07	0.06	0.06	0.07
carpet on concrete	0.02	0.06	0.14	0.37	0.60	0.65
carpet on foam	0.08	0.24	0.57	0.69	0.71	0.73

 

Seating Materials	125 Hz	250 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz
fully occupied - fabric upholstered	0.60	0.74	0.88	0.96	0.93	0.85
occupied wooden pews	0.57	0.61	0.75	0.86	0.91	0.86
empty - fabric upholstered	0.49	0.66	0.80	0.88	0.82	0.70
empty metal/wood seats	0.15	0.19	0.22	0.39	0.38	0.30

 

Wall Materials	125 Hz	250 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz
Brick: unglazed	0.03	0.03	0.03	0.04	0.05	0.07
Brick: unglazed & painted	0.01	0.01	0.02	0.02	0.02	0.03
Concrete block - coarse	0.36	0.44	0.31	0.29	0.39	0.25
Concrete block - painted	0.10	0.05	0.06	0.07	0.09	0.08
Curtain: 10 oz/sq yd fabric molleton	0.03	0.04	0.11	0.17	0.24	0.35
Curtain: 14 oz/sq yd fabric molleton	0.07	0.31	0.49	0.75	0.70	0.60
Curtain: 18 oz/sq yd fabric molleton	0.14	0.35	0.55	0.72	0.70	0.65
Fiberglass: 2'' 703 no airspace	0.22	0.82	0.99	0.99	0.99	0.99
Fiberglass: spray 5''	0.05	0.15	0.45	0.70	0.80	0.80
Fiberglass: spray 1''	0.16	0.45	0.70	0.90	0.90	0.85
Fiberglass: 2'' rolls	0.17	0.55	0.80	0.90	0.85	0.80
Foam: Sonex 2''	0.06	0.25	0.56	0.81	0.90	0.91
Foam: SDG 3''	0.24	0.58	0.67	0.91	0.96	0.99
Foam: SDG 4''	0.33	0.90	0.84	0.99	0.98	0.99
Foam: polyur. 1''	0.13	0.22	0.68	1.00	0.92	0.97
Foam: polyur. 1/2''	0.09	0.11	0.22	0.60	0.88	0.94
Glass: 1/4'' plate large	0.18	0.06	0.04	0.03	0.02	0.02
Glass: window	0.35	0.25	0.18	0.12	0.07	0.04
Plaster: smooth on tile/brick	0.013	0.015	0.02	0.03	0.04	0.05
Plaster: rough on lath	0.02	0.03	0.04	0.05	0.04	0.03
Marble/Tile	0.01	0.01	0.01	0.01	0.02	0.02
Sheetrock 1/2" 16" on center	0.29	0.10	0.05	0.04	0.07	0.09
Wood: 3/8'' plywood panel	0.28	0.22	0.17	0.09	0.10	0.11

 

Ceiling Materials	125 Hz	250 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz
Acoustic Tiles	0.05	0.22	0.52	0.56	0.45	0.32
Acoustic Ceiling Tiles	0.70	0.66	0.72	0.92	0.88	0.75
Fiberglass: 2'' 703 no airspace	0.22	0.82	0.99	0.99	0.99	0.99
Fiberglass: spray 5"	0.05	0.15	0.45	0.70	0.80	0.80
Fiberglass: spray 1"	0.16	0.45	0.70	0.90	0.90	0.85
Fiberglass: 2'' rolls	0.17	0.55	0.80	0.90	0.85	0.80
wood	0.15	0.11	0.10	0.07	0.06	0.07
Foam: Sonex 2''	0.06	0.25	0.56	0.81	0.90	0.91
Foam: SDG 3''	0.24	0.58	0.67	0.91	0.96	0.99
Foam: SDG 4''	0.33	0.90	0.84	0.99	0.98	0.99
Foam: polyur. 1''	0.13	0.22	0.68	1.00	0.92	0.97
Foam: polyur. 1/2''	0.09	0.11	0.22	0.60	0.88	0.94
Plaster: smooth on tile/brick	0.013	0.015	0.02	0.03	0.04	0.05
Plaster: rough on lath	0.02	0.03	0.04	0.05	0.04	0.03
Sheetrock 1/2'' 16" on center	0.29	0.10	0.05	0.04	0.07	0.09
Wood: 3/8" plywood panel	0.28	0.22	0.17	0.09	0.10	0.11

 

Miscellaneous Material	125 Hz	250 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz
Water or ice surface	0.008	0.008	0.013	0.015	0.020	0.025
People (adults)	0.25	0.35	0.42	0.46	0.5	0.5

Material density: 1 ounce/cubic yard = 0.037079776 kg/m³ or 1 kg/m³ = 26.968878969 oz/yd³ center>