For Wall, Floor, And Ceiling materials, input ID number of material found in table below.
Length
Width
Height
Wall Material
Floor Material
Ceiling Material

       Frequency        125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz
Reverberation Time (s)
Average T of 500 and 1000 Hz
Volume of Room

Type Sub-Type Number Material 125Hz 250Hz 500Hz 1K 2K 4K 8K NRC Source
CEILINGS Ceiling Tiles 101. Acoustical board, 3/4" thick, in suspension system 0.760 0.930 0.830 0.990 0.990 0.940 0.940 0.935 Egan
100   102. Armstrong ceiling panel, Optima Open Plan (foil) 2x4 x1" 0.400 0.500 0.950 0.995 0.995 0.995 0.995 0.860 Armstrong data
    103. Armstrong ceiling panel, Optima Open Plan (foil) 2x4 x1-1/2" 0.470 0.800 0.850 0.995 0.995 0.940 0.940 0.910 Armstrong data
    104. Armstrong ceiling panel, Optima Open Plan 2x2 x1" 0.780 0.980 0.760 0.980 0.995 0.995 0.995 0.929 Armstrong data
    105. Armstrong ceiling panel, Painted Nubby Open Plan  2x4 x 1" 0.780 0.970 0.790 0.980 0.995 0.995 0.995 0.934 Armstrong data
    106. Armstrong ceiling panel, Painted Nubby Open Plan (foil)  2x2 x 1" 0.400 0.420 0.940 0.970 0.995 0.995 0.995 0.831 Armstrong data
    107. Armstrong ceiling panel, Painted Nubby Open Plan (foil)  2x4 x 3/4" 0.470 0.300 0.660 0.920 0.995 0.995 0.995 0.719 Armstrong data
    108. Armstrong ceiling panel, Painted Nubby Open Plan (foil) 2x4 x1.5" 0.480 0.820 0.900 0.995 0.995 0.995 0.995 0.928 Armstrong data
    109. Armstrong ceiling panel, Pebble Open Plan (foil) 2x4 x1" 0.730 0.900 0.710 0.960 0.980 0.900 0.900 0.888 Armstrong data
    110. Armstrong ceiling panel, Pebble Open Plan (foil) 2x4 x1.5" 0.760 0.980 0.870 0.995 0.995 0.900 0.900 0.960 Armstrong data
    111. Armstrong ceiling panel, Shasta (Nonperforated) 2x4 x5/8" 0.620 0.360 0.290 0.760 0.660 0.770 0.770 0.518 Armstrong data
    112. Armstrong ceiling panel, Shasta (Perforated) 2x4 x5/8" 0.720 0.650 0.660 0.730 0.730 0.680 0.680 0.693 Armstrong data
    113. Armstrong ceiling panel, Stonebrooke 2x4 x1" 0.620 0.770 0.660 0.820 0.790 0.640 0.640 0.760 Armstrong data
    114. Armstrong m/f ceiling panel, Cirrus 2x2 Classic 0.380 0.380 0.510 0.770 0.890 0.950 0.950 0.638 Armstrong data
    115. Armstrong m/f ceiling panel, Cirrus Open Plan 0.320 0.370 0.700 0.930 0.995 0.995 0.995 0.749 Armstrong data
    116. Armstrong m/f ceiling panel, Cortega 2x4 Square Lay-in 0.300 0.310 0.480 0.750 0.750 0.700 0.700 0.573 Armstrong data
    117. Armstrong m/f ceiling panel, Cortega High NRC 0.360 0.410 0.650 0.840 0.900 0.880 0.880 0.700 Armstrong data
    118. Armstrong m/f ceiling panel, Fine Fissured Square Lay-in, 2x4 0.340 0.320 0.610 0.890 0.950 0.950 0.950 0.693 Armstrong data
    119. Armstrong m/f ceiling panel, Natural Fissured Fire Guard 2x2 0.340 0.290 0.400 0.590 0.740 0.840 0.840 0.505 Armstrong data
    120. Armstrong m/f ceiling panel, Random Fissured (Nonperforated) 2x4 0.650 0.380 0.300 0.780 0.770 0.710 0.710 0.558 Armstrong data
    121. Armstrong m/f ceiling panel, Random Fissured (Perforated) 2x4 0.670 0.650 0.650 0.710 0.810 0.710 0.710 0.705 Armstrong data
    122. Armstrong m/f ceiling panel, Sanserra Angled Tegular 2x2 0.350 0.320 0.540 0.810 0.910 0.995 0.995 0.645 Armstrong data
    123. Armstrong m/f ceiling panel, Stratus 2x2 0.520 0.540 0.580 0.800 0.950 0.970 0.970 0.718 Armstrong data
    124. Armstrong m/f ceiling panel, Tundra 2x2 0.310 0.320 0.630 0.700 0.480 0.380 0.380 0.533 Armstrong data
    125. Armstrong m/f ceiling panel, Ultima 2x4 0.320 0.340 0.760 0.870 0.860 0.840 0.840 0.708 Armstrong data
    126. fine texture mineral fiber, all sizes 0.340 0.370 0.560 0.720 0.790 0.820 0.820 0.610 wjhw?
    127. Fissured mineral fiber 2x4 panels 0.310 0.310 0.490 0.710 0.750 0.790 0.790 0.565 wjhw?
    128. medium texture mineral fiber, all sizes 0.320 0.310 0.510 0.720 0.710 0.630 0.630 0.563 wjhw?
    129. Mineral Fiber ACT, 5/8", average; in ceiling grid 0.340 0.360 0.710 0.820 0.680 0.640 0.640 0.643 Cavanaugh (AA '99)
    130. Suspended acoustic tile, mineral fiber 0.300 0.500 0.350 0.800 0.750 0.750 0.750 0.600 Hann Tucker
    131. USG Acoustone 101 ''F'' fissured 3/4'' 1x1 0.630 0.640 0.540 0.760 0.880 0.900 0.900 0.705 USG data
    132. USG Acoustone 701 Glacier 3/4'' 1x1 0.570 0.510 0.490 0.770 0.850 0.820 0.820 0.655 USG data
    133. USG Acoustone 808 Sandrift 3/4'' 2x2 0.460 0.390 0.630 0.840 0.870 0.910 0.910 0.683 USG data
    134. USG Acoustone Firecode, 3/4", 2x2 panels, '''F'' fissured 141 0.370 0.320 0.670 0.990 0.920 0.920 0.920 0.725 USG data
    135. USG Acoustone Firecode, 3/4", 2x2 panels, Glacier 715 0.450 0.290 0.600 0.960 0.930 0.950 0.950 0.695 USG data
    136. USG Acoustone, foil, 3/4", 2x2 panels, ''F'' fissured 131 0.340 0.320 0.600 0.990 0.960 0.970 0.970 0.718 USG data
    137. USG Acoustone, foil, 3/4", 2x2 panels, ''F'' fissured 132 0.430 0.310 0.590 0.980 0.980 0.950 0.950 0.715 USG data
    138. USG Acoustone, foil, 3/4", 2x2 panels, Frost 414 0.380 0.340 0.610 0.960 0.920 0.950 0.950 0.708 USG data
    139. USG Acoustone, foil, 3/4", 2x2 panels, Glacier 707 0.330 0.300 0.460 0.960 0.995 0.995 0.995 0.679 USG data
    140. USG Auratone Firecode panels, Aspen 3845  3/4'' 2x2 0.450 0.320 0.580 0.670 0.640 0.550 0.550 0.553 USG data
    141. USG Auratone Firecode panels, Fissured 586  5/8'' 2x4 0.360 0.280 0.570 0.830 0.640 0.550 0.550 0.580 USG data
    142. USG Auratone Firecode panels, Omni 339  5/8'' 2x4 0.350 0.290 0.580 0.930 0.770 0.640 0.640 0.643 USG data
    143. USG Auratone panels, 12x12 tile, Omni 320  5/8'' 1x1 0.500 0.360 0.530 0.690 0.650 0.640 0.640 0.558 USG data
    144. USG Auratone, Aspen 650 3/4'' 2x2  0.410 0.320 0.510 0.750 0.620 0.660 0.660 0.550 USG data
    145. USG Auratone, Aspen Illus. Two/24 652  3/4'' 2x4 0.370 0.290 0.460 0.620 0.640 0.760 0.760 0.503 USG data
    146. USG Auratone, Fissured 562 5/8'' 2x4 0.380 0.300 0.380 0.690 0.810 0.680 0.680 0.545 USG data
    147. USG Auratone, Illus. Two/24 3575  3/4'' 2x4 0.350 0.310 0.446 0.670 0.670 0.580 0.580 0.524 USG data
    148. USG Auratone, Omni 323 5/8'' 2x2 0.400 0.240 0.470 0.780 0.700 0.550 0.550 0.548 USG data
    149. USG Auratone, Omni 345 5/8'' 2x4 0.350 0.270 0.450 0.710 0.700 0.590 0.590 0.533 USG data
    150. USG Climaplus Firecode panels, Clean Room (perf) 55060  5/8'' 2x2 0.360 0.320 0.560 0.800 0.660 0.500 0.500 0.585 USG data
    151. USG Climaplus Firecode panels, Rockface 56380  5/8'' 2x4 0.380 0.310 0.430 0.800 0.630 0.620 0.620 0.543 USG data
    152. USG Eclipse ClimaPlus 3/4'' 2x2 0.470 0.330 0.590 0.910 0.960 0.900 0.900 0.698 USG data
    153. USG Mars ClimaPlus 3/4'' 2x2 0.590 0.480 0.560 0.800 0.870 0.770 0.770 0.678 USG data
    154. USG Millennia ClimaPlus 3/4'' 2x2 0.450 0.330 0.590 0.920 0.960 0.930 0.930 0.700 USG data
    155. USG Millennia ClimaPlus 3/4'' 2x2 High NRC 0.610 0.580 0.600 0.820 0.930 0.890 0.890 0.733 USG data
    156. USG Orion 210 ClimaPlus 1/2'' 2x4 0.730 0.670 0.630 0.810 0.740 0.420 0.420 0.713 USG data
    157. USG Orion 270 ClimaPlus 3/4'' 2x2 0.720 0.640 0.620 0.920 0.995 0.995 0.995 0.794 USG data
    158. USG Orion 270 ClimaPlus 3/4'' 2x2 backed 0.430 0.400 0.630 0.950 0.995 0.900 0.900 0.744 USG data
    159. USG Radar High-NRC 3173  3/4'' 2x2 0.460 0.440 0.700 0.870 0.770 0.620 0.620 0.695 USG data
    160. USG Radar High-NRC 3178  3/4'' 2x4 0.500 0.470 0.620 0.930 0.740 0.810 0.810 0.690 USG data
  Special Ceilings 161. 1" Parallel glass-fiber panels, 18"wide, 18"apart, 12"a.s. 0.070 0.200 0.400 0.520 0.600 0.670 0.670 0.430 Egan
    162. 1" parallel glass-fiber panels, 18"wide, 6.5"apart, 12"a.s. 0.100 0.290 0.620 1.120 1.330 1.380 1.380 0.840 Egan
    163. Plaster, 1-1/4", on ceiling lath with air space 0.140 0.120 0.080 0.060 0.060 0.060 0.060 0.080 Beranek (JASA '98)
    164. Plaster, 2-1/2", on ceiling lath with air space 0.100 0.080 0.050 0.040 0.030 0.020 0.020 0.050 Beranek (JASA '98)
    165. Wood Ceiling (solid), 2 layers 1/2", suspended on black iron 0.180 0.140 0.100 0.078 0.070 0.060 0.060 0.097 Beranek (JASA '98)
    166. Wood Roof Deck 0.240 0.190 0.140 0.080 0.130 0.100 0.100 0.135 wjhw?
  Metal Roof Decks 167. EPIC perf metal roof ER2RA 2" 1-pc. deck; 50% infill 0.290 0.680 0.995 0.820 0.580 0.410 0.410 0.769 Epic data
    168. EPIC perf metal roof ER2RA 2" perf. steel deck, 1-pc. 0.260 0.600 0.995 0.980 0.995 0.910 0.910 0.893 Epic data
    169. Metal roof deck, plain 0.400 0.300 0.150 0.100 0.040 0.120 0.120 0.148 wjhw?
    170. Perforated Acoustical Deck, filled with fiberglass 0.380 0.490 0.630 0.980 0.740 0.540 0.540 0.710 Vulcraft
    171. Plain steel ceiling planks 0.250 0.150 0.100 0.080 0.050 0.050 0.050 0.095 Hann Tucker
    172. Roof deck, perf. fluted steel ribbed insulated, WR 3" w/.15"d.@3/8"centers 0.110 0.200 0.630 0.995 0.660 0.360 0.360 0.621 wjhw?
  Gypsum Board Ceilings 173. Gypsum board, 1/2" thick 0.290 0.100 0.050 0.040 0.070 0.090 0.090 0.065 Egan
    174. Gypsum board, 1/2" thick, in suspension system 0.150 0.100 0.050 0.040 0.070 0.090 0.090 0.065 Egan
    175. 1/2" Gypsum board ceiling 0.115 0.110 0.050 0.055 0.041 0.049 0.049 0.064 wjhw?
    176. Suspended plasterboard on large air space 0.200 0.150 0.100 0.050 0.050 0.050 0.050 0.088 Hann Tucker
  Sprayed-On Cellulose Fibers 177. K13, ribbed deck, 1.5" 0.360 0.890 0.990 0.990 0.990 0.990 0.990 0.965 ICC data
    178. K13, ribbed deck, 2" 0.560 0.940 0.990 0.990 0.990 0.990 0.990 0.978 ICC data
    179. K13, ribbed deck, 2.5" 0.770 0.990 0.990 0.990 0.970 0.990 0.990 0.985 ICC data
    180. K13, ribbed deck, 3" 0.970 0.990 0.990 0.990 0.950 0.980 0.980 0.980 ICC data
    181. K13, solid backing, 1" 0.080 0.290 0.790 0.980 0.930 0.960 0.960 0.748 ICC data
    182. K13, solid backing, 1.5" 0.150 0.510 0.950 0.990 0.990 0.980 0.980 0.860 ICC data
    183. K13, solid backing, 2" 0.260 0.680 0.990 0.990 0.990 0.980 0.980 0.913 ICC data
    184. K13, solid backing, 3/4" 0.060 0.190 0.550 0.890 0.910 0.930 0.930 0.635 ICC data
    185. K13, solid backing, 5/8" 0.050 0.160 0.440 0.790 0.900 0.910 0.910 0.573 ICC data
    186. K13fc, solid backing, 1" 0.120 0.380 0.880 0.995 0.995 0.995 0.995 0.813 ICC data
    187. K13fc, solid backing, 1/2" 0.150 0.160 0.460 0.870 0.995 0.995 0.995 0.621 ICC data
    188. K13fc, solid backing, 3/4" 0.180 0.270 0.670 0.995 0.995 0.995 0.995 0.733 ICC data
    189. K13fc, solid backing, 5/8" 0.160 0.220 0.570 0.950 0.995 0.995 0.995 0.684 ICC data
    190. Pyrok Acoustement 20, 1", sprayed on concrete slab 0.150 0.390 0.610 0.750 0.850 0.990 0.990 0.650 Pyrok tests
    191. Pyrok Acoustement 20, 1/2", sprayed on concrete slab 0.110 0.300 0.360 0.460 0.730 0.990 0.990 0.463 Pyrok tests
    192. Pyrok Acoustement 40, 1", sprayed on concrete slab 0.180 0.310 0.360 0.730 0.670 0.630 0.630 0.518 Pyrok tests
    193. Pyrok Acoustement 40, 1/2", sprayed on concrete slab 0.110 0.160 0.260 0.490 0.780 0.780 0.780 0.423 Pyrok tests
    194. Sprayed cellulose fibers, 1" thick on concrete 0.080 0.290 0.750 0.980 0.930 0.760 0.760 0.738 Egan
  Roof Fabric 195. Glass-fiber roof fabric, 12oz 0.650 0.710 0.820 0.860 0.760 0.620 0.620 0.788 Egan
    196. Glass-fiber roof fabric, 37.5oz 0.380 0.230 0.170 0.150 0.090 0.060 0.060 0.160 Egan
PEOPLE Various 201. Am. Seating ac. pan 0.020 0.070 0.110 0.070 0.080 0.070 0.070 0.083 wjhw?
200   202. Am.Seating plastic stadium 0.006 0.020 0.030 0.020 0.020 0.020 0.020 0.023 wjhw?
    203. Audience in upholstered seats 0.180 0.400 0.460 0.460 0.510 0.460 0.460 0.458 Hann Tucker
    204. Audience in wood or padded seat 0.160 0.350 0.400 0.400 0.440 0.400 0.400 0.398 Hann Tucker
    205. Audience, seated in upholstered seats 0.390 0.570 0.800 0.940 0.920 0.870 0.870 0.808 Egan
    206. Balcony Opening, deep opening 0.500 0.600 0.700 0.800 0.900 0.950 0.950 0.750 Cavanaugh (AA '99)
    207. Chair, metal or wood seat, empty 0.150 0.190 0.220 0.390 0.380 0.300 0.300 0.295 Egan
    208. Congregation, seated in wooden pews 0.570 0.610 0.750 0.860 0.910 0.860 0.860 0.783 Egan
    209. Deep balcony with upholstered seats   0.500 to 1.000     0.000 0.750 Egan
    210. Desks/cabinets each 0.200 0.150 0.100 0.080 0.050 0.050 0.050 0.095 Hann Tucker
    211. Fabric uphostered seats, perforated seat pans, empty 0.190 0.370 0.560 0.670 0.610 0.590 0.590 0.553 Egan
  Heavily upholstered 212. Heavily Upholstered Seats , occupied 0.720 0.800 0.860 0.890 0.900 0.900 0.900 0.863 Beranek (JASA '98)
    213. Heavily Upholstered Seats , unoccupied 0.700 0.760 0.810 0.840 0.840 0.810 0.810 0.813 Beranek (JASA '98)
    214. Leather upholstered seats, empty 0.440 0.540 0.600 0.620 0.580 0.500 0.500 0.585 Egan
  Lightly upholstered 215. Lightly Upholstered Seats, occupied 0.510 0.640 0.750 0.800 0.820 0.830 0.830 0.753 Beranek (JASA '98)
    216. Lightly Upholstered Seats, unoccupied 0.360 0.470 0.570 0.620 0.620 0.600 0.600 0.570 Beranek (JASA '98)
  Moderately upholstered 217. Moderately Upholstered Seats , occupied 0.620 0.720 0.800 0.830 0.840 0.850 0.850 0.798 Beranek (JASA '98)
    218. Moderately Upholstered Seats , unoccupied 0.540 0.620 0.680 0.700 0.680 0.660 0.660 0.670 Beranek (JASA '98)
    219. Musician w/ instr; each 4.000 8.500 11.500 14.000 13.000 12.000 12.000 11.750 wjhw?
  Non-upholstered 220. Non-upholstered Seats, occupied 0.570 0.610 0.750 0.860 0.910 0.860 0.860 0.783 Egan
    221. Non-upholstered Seats, unoccupied 0.150 0.190 0.220 0.390 0.380 0.300 0.300 0.295 Egan
  Various 222. Occupied Part of Stage, filled with orchestra players 0.129 0.218 0.259 0.394 0.600 0.776 0.776 0.368 Beranek (JASA '98)
    223. Orchestra Pit Opening, large orchestra (80 players) 0.120 0.170 0.230 0.560 0.670 0.710 0.710 0.408 Beranek (JASA '98)
    224. Orchestra Pit Opening, small orchestra (40 players) 0.100 0.130 0.170 0.410 0.500 0.570 0.570 0.303 Beranek (JASA '98)
    225. Organ Pipes, In pipe case 0.550 0.350 0.250 0.200 0.150 0.150 0.150 0.238 Beranek (JASA '98)
    226. People in Uph. Seats 0.580 0.700 0.840 0.930 0.900 0.830 0.830 0.843 wjhw?
    227. People, unseated, each 0.150 0.350 0.400 0.400 0.400 0.400 0.400 0.388 Hann Tucker
    228. person, adult, each 2.500 3.500 4.200 4.600 5.000 5.000 5.000 4.325 wjhw?
    229. person, elementary school, each 1.800 2.400 2.800 3.200 3.500 3.400 3.400 2.975 wjhw?
    230. person, high school, each 2.200 3.200 3.800 4.300 4.500 4.400 4.400 3.950 wjhw?
  Pews 231. Pews; all types; occupied 0.550 0.650 0.780 0.880 0.910 0.820 0.820 0.805 wjhw?
    232. Pews; upholstered, 2/3 filled 0.460 0.590 0.680 0.760 0.770 0.700 0.700 0.700 wjhw?
    233. Pews; upholstered, empty 0.340 0.410 0.430 0.440 0.460 0.480 0.480 0.435 wjhw?
    234. Pews; upholstered; full 0.520 0.670 0.800 0.910 0.910 0.800 0.800 0.823 wjhw?
    235. Pews; wood; empty 0.100 0.100 0.090 0.080 0.080 0.080 0.080 0.088 wjhw?
    236. Pews; wood; filled 0.570 0.610 0.750 0.860 0.910 0.860 0.860 0.783 wjhw?
  Various 237. Seating, empty, fully upholstered 0.120 0.220 0.280 0.300 0.320 0.370 0.370 0.280 Hann Tucker
    238. Seating, empty, wood or padded 0.080 0.110 0.150 0.160 0.180 0.200 0.200 0.150 Hann Tucker
    239. Stage   0.250 to 0.750     0.000 0.500 Egan
    240. Stage Opening, average; depends on set  0.250 0.350 0.450 0.550 0.650 0.750 0.750 0.500 Cavanaugh (AA '99)
    241. Students, seated in tablet-arm chairs 0.300 0.410 0.490 0.840 0.870 0.840 0.840 0.653 Egan
    242. Timber bench/panels 0.250 0.350 0.400 0.400 0.400 0.400 0.400 0.388 Hann Tucker
    243. Uph. auditorium chairs, empty 0.450 0.880 0.830 0.780 0.720 0.630 0.630 0.803 wjhw?
    244. Uph. stadium; fab/foam; empty 0.320 0.640 0.690 0.610 0.580 0.500 0.500 0.630 wjhw?
    245. Upholst. seats, 3/4 audience 0.550 0.680 0.810 0.900 0.870 0.790 0.790 0.815 wjhw?
    246. Upholstered seats, empty 0.460 0.600 0.730 0.810 0.760 0.660 0.660 0.725 wjhw?
WALLS Various 301. "Sonex" style foam, 2", 2" at tip of wedges 0.080 0.250 0.610 0.920 0.950 0.920 0.920 0.683 Cavanaugh (AA '99)
300 & 400   302. "Sonex" style foam, 3", 3" at tip of wedges 0.140 0.430 0.980 0.990 0.990 0.990 0.990 0.848 Cavanaugh (AA '99)
    303. 1" or 25mm fiberglass, fabric or perf. vinyl 0.720 0.930 0.730 0.970 0.990 0.960 0.960 0.905 wjhw?
    304. 1/4" Pegboard, 9/32" d.@ 1"  over 2x4s, 1.5" fuzz 0.370 0.550 0.750 0.350 0.250 0.180 0.180 0.475 wjhw?
    305. 1-1/2" or 38mm fiberglass, fabric or perf. vinyl 0.750 0.960 0.890 0.995 0.995 0.980 0.980 0.960 wjhw?
    306. 12mm ply on 50mm air space, mineral wool insulation 0.300 0.200 0.150 0.100 0.100 0.100 0.100 0.138 Hann Tucker
    307. 19mm timber panels on air space and mineral wool 0.300 0.200 0.100 0.100 0.100 0.080 0.080 0.125 Hann Tucker
    308. 25mm mineral wool on solid 0.150 0.350 0.700 0.850 0.900 0.900 0.900 0.700 Hann Tucker
    309. 25mm timber panels on air space and mineral wool 0.300 0.200 0.100 0.100 0.100 0.080 0.080 0.125 Hann Tucker
    310. 3/4" or 19mm fiberglass, nubby fabric facing 0.640 0.900 0.660 0.880 0.970 0.995 0.995 0.853 wjhw?
    311. 3mm perf. on large air space with mineral wool 0.400 0.450 0.650 0.800 0.900 0.850 0.850 0.700 Hann Tucker
    312. 5/8" or 16mm fiberglass, perf. vinyl 0.650 0.680 0.660 0.720 0.820 0.710 0.710 0.720 wjhw?
  Mineral wool 313. 50mm mineral wool + 10% perforated hardboard 0.450 0.400 0.800 0.800 0.750 0.400 0.400 0.688 Hann Tucker
    314. 50mm mineral wool on 50mm air space on solid 0.450 0.750 0.800 0.850 0.900 0.900 0.900 0.825 Hann Tucker
    315. 50mm mineral wool on solid 0.200 0.450 0.700 0.850 0.900 0.900 0.900 0.725 Hann Tucker
    316. 75mm mineral wool on solid 0.300 0.500 0.750 0.850 0.900 0.900 0.900 0.750 Hann Tucker
  Plasterboard 317. 9mm p/board + 50mm stud + 9mm p/board 0.300 0.150 0.100 0.050 0.040 0.050 0.050 0.085 Hann Tucker
    318. 9mm p/board on 25mm air space on solid 0.300 0.150 0.100 0.050 0.040 0.050 0.050 0.085 Hann Tucker
    319. 9mm p/board on 25mm air space, w/ m/wool on solid 0.400 0.200 0.150 0.100 0.100 0.090 0.090 0.138 Hann Tucker
    320. Acoustic plaster on lath, big air space 0.250 0.200 0.200 0.270 0.350 0.350 0.350 0.255 Hann Tucker
    321. Acoustic plaster on solid 0.100 0.150 0.200 0.250 0.300 0.350 0.350 0.225 Hann Tucker
    322. Audex A acoustic plaster 0.300 0.350 0.550 0.700 0.850 0.900 0.900 0.613 Hann Tucker
    323. Audex G acoustic plaster 0.350 0.350 0.400 0.550 0.700 0.700 0.700 0.500 Hann Tucker
  Block 324. Block work, fair faced 0.200 0.300 0.600 0.500 0.450 0.400 0.400 0.463 Hann Tucker
    325. Block work, painted 0.150 0.200 0.300 0.300 0.250 0.200 0.200 0.263 Hann Tucker
  Brick 326. Brick work, fair faced 0.050 0.040 0.020 0.040 0.050 0.050 0.050 0.038 Hann Tucker
    327. Brick, 4", unglazed 0.030 0.030 0.030 0.040 0.050 0.070 0.070 0.038 Cavanaugh (AA '99)
    328. Brick, painted 0.010 0.010 0.020 0.020 0.020 0.030 0.030 0.018 wjhw?
    329. Brick, unglazed 0.020 0.020 0.030 0.040 0.050 0.070 0.070 0.035 Egan
    330. Brick, unglazed 0.030 0.030 0.030 0.040 0.050 0.070 0.070 0.038 wjhw?
    331. Brick, unglazed and painted 0.010 0.010 0.020 0.020 0.020 0.030 0.030 0.018 Egan
    332. Claro Panels, 1", over air space 0.470 0.630 0.820 0.990 0.990 0.990 0.990 0.858 Decoustics Tests
  Concrete Block 333. CMU, coarse 0.360 0.440 0.310 0.290 0.390 0.250 0.250 0.358 wjhw?
    334. CMU, painted 0.100 0.050 0.060 0.070 0.090 0.080 0.080 0.068 wjhw?
    335. Concrete Block, all, painted or glazed 0.110 0.080 0.070 0.060 0.060 0.070 0.070 0.068 Beranek (C&OH '96)
    336. Concrete Block, all, unpainted 0.360 0.440 0.310 0.290 0.390 0.250 0.250 0.358 Knudsen/Harris
    337. Concrete block, course 0.360 0.440 0.310 0.290 0.390 0.350 0.350 0.358 Egan
    338. Concrete block, painted 0.100 0.050 0.060 0.070 0.090 0.080 0.080 0.068 Egan
    339. Concrete, rough 0.010 0.020 0.040 0.060 0.080 0.100 0.100 0.050 Egan
  Various 340. Construction no. 8 with 2 layers of 5/8" gypsum board 0.280 0.120 0.100 0.070 0.130 0.090 0.090 0.105 Egan
    341. Decoustics a.p. fabric  0.5" 0.040 0.120 0.300 0.690 0.870 0.950 0.950 0.495 Decoustics data
    342. Decoustics a.p. fabric  0.75" 0.010 0.170 0.540 0.890 0.995 0.970 0.970 0.649 Decoustics data
    343. Decoustics a.p. vinyl  2" 0.230 0.810 0.995 0.995 0.995 0.995 0.995 0.949 Decoustics data
    344. Decoustics a.p./ h.i.r2 fabric 1" 0.030 0.370 0.890 0.995 0.995 0.995 0.995 0.813 Decoustics data
    345. Decoustics a.p./ h.i.r2 fabric 2" 0.230 0.810 0.995 0.995 0.995 0.995 0.995 0.949 Decoustics data
    346. Decoustics a.p./h.i.r2 fabric 1.5" 0.150 0.580 0.995 0.995 0.995 0.995 0.995 0.891 Decoustics data
    347. Decoustics a.p./h.i.r2 perf. vinyl  1" 0.140 0.340 0.750 0.995 0.995 0.995 0.995 0.770 Decoustics data
    348. Decoustics h.i.r 1 fabric  1-1/8" 0.160 0.570 0.940 0.995 0.995 0.950 0.950 0.875 Decoustics data
    349. Decoustics h.i.r 1 perf. vinyl  1-1/8" 0.160 0.570 0.920 0.995 0.990 0.930 0.930 0.869 Decoustics data
    350. Decoustics h.i.r 1 vinyl  1-1/8" 0.450 0.800 0.995 0.995 0.960 0.880 0.880 0.938 Decoustics data
    351. Decoustics h.i.r.1 perf vinyl 2-1/8" 0.450 0.800 0.995 0.995 0.960 0.880 0.880 0.938 Decoustics data
    352. Decoustics h.i.r1  fabric  2-1/8" 0.540 0.870 0.995 0.995 0.940 0.910 0.910 0.950 Decoustics data
    353. Decoustics LFT non-perf vinyl  2" 0.350 0.995 0.760 0.240 0.070 0.080 0.080 0.516 Decoustics data
    354. Decoustics METALLO 1" 0.130 0.370 0.890 0.995 0.995 0.995 0.995 0.813 Decoustics data
    355. Decoustics QUADRILLO perf wood 1-1/8" 0.040 0.230 0.520 0.900 0.940 0.660 0.660 0.648 Decoustics data
    356. Decoustics QUADRILLO perf wood 1-7/8" 0.200 0.500 0.970 0.995 0.995 0.920 0.920 0.865 Decoustics data
    357. Decoustics QUADRILLO perf wood 2-3/8" 0.380 0.670 0.995 0.995 0.995 0.940 0.940 0.914 Decoustics data
  Fiberglass 358. Fabric Wrapped FG Panel, 1", against solid backing 0.110 0.370 0.890 0.990 0.990 0.990 0.990 0.810 Decoustics Tests
    359. Fabric Wrapped FG Panel, 1", over 400mm air space 0.670 0.970 0.760 0.990 0.990 0.990 0.990 0.928 Decoustics Tests
    360. Fabric Wrapped FG Panel, 1/2", against solid backing 0.040 0.120 0.300 0.690 0.870 0.950 0.950 0.495 Decoustics Tests
    361. Fabric Wrapped FG Panel, 2", against solid backing 0.230 0.810 0.990 0.990 0.990 0.990 0.990 0.945 Decoustics Tests
    362. Fabric Wrapped FG Panel, 2", over 400mm air space 0.600 0.870 0.990 0.990 0.990 0.990 0.990 0.960 Decoustics Tests
    363. Fiberglass 3"  Type 703, unfaced 0.530 0.995 0.995 0.995 0.995 0.995 0.995 0.995 wjhw?
    364. Fiberglass 3": Thermal Insulating Wool (TIW) 0.460 0.995 0.995 0.995 0.995 0.995 0.995 0.995 wjhw?
    365. Fiberglass 3": Type 703 + 1" Nubby Glass Cloth 0.500 0.995 0.995 0.995 0.990 0.970 0.970 0.994 wjhw?
    366. Fiberglass 4"  Type 703, unfaced 0.840 0.995 0.995 0.995 0.995 0.970 0.970 0.995 wjhw?
    367. Fiberglass 4":  3" Type 703 + 1" Nubby Glass Cloth 0.750 0.995 0.995 0.995 0.995 0.970 0.970 0.995 wjhw?
    368. Fiberglass 6"  Type 703, unfaced 0.995 0.995 0.995 0.995 0.995 0.995 0.995 0.995 wjhw?
    369. Fiberglass 6":  5" Type 703 + 1" Nubby Glass Cloth 0.920 0.995 0.995 0.995 0.995 0.995 0.995 0.995 wjhw?
    370. Fiberglass Batt, 3-1/2", against solid backing 0.380 0.900 0.990 0.930 0.940 0.990 0.990 0.940 Cavanaugh (AA '99)
    371. Fiberglass Batt, 6", against solid backing 0.880 0.990 0.990 0.990 0.990 0.990 0.990 0.990 Cavanaugh (AA '99)
    372. Fiberglass Duct Liner, 1", 1.5# fiberglass on duct 0.130 0.510 0.460 0.650 0.740 0.950 0.950 0.590 Owens Corning
    373. Fiberglass Duct Liner, 2", 1.5# fiberglass on duct 0.250 0.730 0.940 1.030 1.020 1.090 1.090 0.930 Owens Corning
    374. Fiberglass fabric curtain, 8.5oz, draped to half area 0.090 0.320 0.680 0.830 0.390 0.550 0.550 0.555 Egan
    375. Foil Faced Fiberglass, 1", against solid backing 0.560 0.990 0.930 0.410 0.210 0.140 0.140 0.635 Cavanaugh (AA '99)
  Gypsum board 376. Gypsum board, 1 layer 5/8" on studs 16"oc w/batt 0.550 0.140 0.080 0.040 0.120 0.110 0.110 0.095 Egan
    377. Gypsum board, 1/2" on 2x4studs, 16"oc 0.290 0.100 0.050 0.040 0.070 0.090 0.090 0.065 Egan
    378. Gypsum board, 1+1 @ 1/2" on 3-5/8" studs 0.265 0.095 0.050 0.036 0.030 0.026 0.026 0.053 wjhw?
    379. Gypsum board, 1+1 @ 1/2" on ins. 3-5/8" studs 0.157 0.069 0.044 0.035 0.030 0.026 0.026 0.045 wjhw?
    380. Gypsum board, 1+1 @ 5/8" on 3-5/8" studs 0.220 0.084 0.048 0.036 0.030 0.030 0.030 0.050 wjhw?
    381. Gypsum board, 1+1 @ 5/8" on ins. 3-5/8" studs 0.135 0.063 0.042 0.034 0.030 0.026 0.026 0.042 wjhw?
    382. Gypsum board, 1+2 @ 5/8" on  3-5/8" studs 0.191 0.088 0.060 0.050 0.045 0.041 0.041 0.061 wjhw?
    383. Gypsum board, 1+2 @ 5/8" on ins. 3-5/8" studs 0.127 0.072 0.056 0.049 0.045 0.041 0.041 0.056 wjhw?
    384. Gypsum board, 2 layers 5/8" on studs 16"oc w/batt 0.280 0.120 0.100 0.070 0.130 0.090 0.090 0.105 Egan
    385. Gypsum board, 2+2 @ 5/8" on 3-5/8" studs 0.147 0.077 0.057 0.049 0.045 0.041 0.041 0.057 wjhw?
    386. Gypsum board, 2+2 @ 5/8" on ins. 3-5/8" studs 0.104 0.067 0.054 0.049 0.045 0.041 0.041 0.054 wjhw?
    387. Gypsum board, 5/8" screwed to 1x3studs, 16"oc, ins. 0.550 0.140 0.080 0.040 0.120 0.110 0.110 0.095 Egan
  Various 388. IAC Varitone 2" thick, No facing 0.350 0.650 1.200 1.210 1.070 0.920 0.920 1.033 IAC data
    389. IAC Varitone 2" thick, Polymer & Spacer 0.390 0.480 0.710 1.010 0.930 0.770 0.770 0.783 IAC data
    390. IAC Varitone 2" thick, polymer facing 0.410 0.470 0.640 0.790 0.850 0.720 0.720 0.688 IAC data
    391. IAC Varitone 3" thick, No facing 0.850 1.210 1.180 1.130 1.040 0.890 0.890 1.140 IAC data
    392. IAC Varitone 3" thick, Polymer & Spacer 0.650 0.700 1.030 1.110 1.040 0.890 0.890 0.970 IAC data
    393. IAC Varitone 3" thick, polymer facing 0.890 1.000 1.060 1.100 1.030 0.960 0.960 1.048 IAC data
    394. IAC Varitone 4" thick, No facing 0.970 1.390 1.340 1.290 1.190 1.010 1.010 1.303 IAC data
    395. IAC Varitone 4" thick, Polymer & Spacer 0.570 0.600 1.010 1.060 0.990 0.860 0.860 0.915 IAC data
    396. IAC Varitone 4" thick, polymer facing 0.860 0.890 0.930 0.890 0.840 0.770 0.770 0.888 IAC data
    397. Leather panel on mineral wool on solid 0.500 0.250 0.150 0.100 0.100 0.100 0.100 0.150 Hann Tucker
    398. Lignacoust (R. Graefe ltd.) 0.200 0.650 0.950 0.650 0.600 0.500 0.500 0.713 Hann Tucker
    399. Martin 1" FIBROPLANK 0.030 0.150 0.210 0.350 0.820 0.580 0.580 0.383 Martin data
    400. Martin 1-1/2" FIBROPLANK 0.090 0.210 0.420 0.995 0.580 0.800 0.800 0.551 Martin data
    401. Martin 1-1/2" FIBROPLANK, C-40 MTG w/ FG insulation 0.390 0.820 0.995 0.750 0.810 0.920 0.920 0.844 Martin data
    402. Martin 2" FIBROPLANK 0.130 0.230 0.620 0.995 0.610 0.810 0.810 0.614 Martin data
    403. Martin 2-1/2" FIBROPLANK 0.150 0.320 0.780 0.850 0.730 0.880 0.880 0.670 Martin data
    404. Martin 3" FIBROPLANK 0.200 0.300 0.890 0.700 0.880 0.920 0.920 0.693 Martin data
    405. Metal Cladding 0.150 0.100 0.080 0.050 0.050 0.050 0.050 0.070 Hann Tucker
    406. Metal cladding, against solid backing 0.150 0.100 0.080 0.050 0.050 0.050 0.050 0.070 C&A Files
    407. Plaster on brick 0.010 0.020 0.020 0.030 0.040 0.050 0.050 0.028 Egan
    408. Plaster on concrete block, or 1" thick on lath 0.120 0.090 0.070 0.050 0.050 0.040 0.040 0.065 Egan
    409. Plaster on lath 0.140 0.100 0.060 0.050 0.040 0.030 0.030 0.063 Egan
    410. Plaster on lath / air 0.100 0.080 0.060 0.050 0.040 0.030 0.030 0.058 wjhw?
    411. Plaster on lath, large air space 0.200 0.150 0.100 0.060 0.040 0.040 0.040 0.088 Hann Tucker
    412. Plaster on lath, small air space 0.100 0.080 0.050 0.050 0.040 0.040 0.040 0.055 Hann Tucker
    413. Plaster on masonry 0.020 0.020 0.030 0.040 0.040 0.030 0.030 0.033 wjhw?
    414. Plaster on solid 0.040 0.050 0.060 0.080 0.040 0.060 0.060 0.058 Hann Tucker
    415. Plaster, 1/2", on wall lath 0.020 0.020 0.030 0.040 0.040 0.030 0.030 0.033 Cavanaugh (AA '99)
    416. Plaster, skim coat, over concrete block 0.060 0.050 0.050 0.040 0.040 0.040 0.040 0.045 Beranek (JASA '98)
    417. Plywood, 1/4", over air space (+/- 3") 0.420 0.210 0.100 0.080 0.060 0.060 0.060 0.113 Beranek (C&OH '96)
    418. Plywood, 1/4"/air 0.580 0.220 0.070 0.040 0.030 0.070 0.070 0.090 wjhw?
    419. Plywood, 3/8" paneling 0.280 0.220 0.170 0.090 0.100 0.110 0.110 0.145 Egan
    420. Plywood, 3/8" thick 0.280 0.220 0.170 0.090 0.100 0.110 0.110 0.145 Egan
    421. Plywood, 3/8"-1/2" /air 0.280 0.220 0.170 0.090 0.100 0.110 0.110 0.145 wjhw?
    422. Plywood, 7/8", over air space (+/- 3") 0.280 0.220 0.170 0.090 0.100 0.110 0.110 0.145 Cavanaugh (AA '99)
    423. Plywood. 3/4"/air 0.200 0.180 0.150 0.120 0.100 0.100 0.100 0.138 wjhw?
    424. Polyurethane foam, 1" thick, open cell, reticulated 0.070 0.110 0.200 0.320 0.600 0.850 0.850 0.308 Egan
    425. Profillia A (A.A.V. ltd) 0.100 0.350 0.800 0.400 0.250 0.350 0.350 0.450 Hann Tucker
    426. Profillia B (A.A.V. ltd) 0.150 0.500 0.650 0.350 0.200 0.350 0.350 0.425 Hann Tucker
    427. Shredded-wood fiberboard, 2" thick on concrete 0.150 0.260 0.620 0.940 0.640 0.600 0.600 0.615 Egan
    428. Shredded-wood fiberboard, 2" thick on lay-in grid 0.590 0.510 0.530 0.730 0.880 0.740 0.740 0.663 Egan
    429. Silvatone (A.A.V. ltd) 0.400 0.250 0.200 0.150 0.150 0.150 0.150 0.188 Hann Tucker
    430. Slotted concrete block , 12", fiberglass & metal septum 0.570 0.760 0.990 0.940 0.540 0.590 0.590 0.808 Cavanaugh (AA '99)
    431. Slotted concrete block , 12", fiberglass in void 0.480 0.830 0.860 0.540 0.470 0.440 0.440 0.675 Cavanaugh (AA '99)
    432. Slotted concrete block , 4", Empty void 0.120 0.850 0.360 0.360 0.420 0.350 0.350 0.498 Cavanaugh (AA '99)
    433. Slotted concrete block , 6", Empty void 0.620 0.840 0.360 0.430 0.270 0.300 0.300 0.475 Cavanaugh (AA '99)
    434. Slotted concrete block , 8", Empty void 0.640 0.440 0.380 0.390 0.500 0.250 0.250 0.428 Cavanaugh (AA '99)
    435. Slotted concrete block , 8", metal septum in void 0.990 0.970 0.610 0.370 0.560 0.390 0.390 0.628 Cavanaugh (AA '99)
    436. Sound Cell;  Acoustade 12'' cmu with fillers 0.950 0.640 0.550 0.740 0.810 0.720 0.720 0.685 Bestblock data
    437. Sound Cell;  Acoustade 8'' cmu with fillers 0.670 0.890 0.510 0.750 0.770 0.690 0.690 0.730 Bestblock data
    438. Sound Cell;  Acoustade 8'' cmu without fillers 0.980 0.470 0.350 0.710 0.770 0.690 0.690 0.575 Bestblock data
    439. Soundblox 12" Type R; painted 0.480 0.830 0.860 0.540 0.470 0.440 0.440 0.675 Soundblox data
    440. Soundblox 12" Type RSC; painted 0.570 0.760 0.999 0.940 0.540 0.590 0.590 0.810 Soundblox data
    441. Soundblox 4" Type A1; painted 0.120 0.850 0.360 0.360 0.420 0.450 0.450 0.498 Soundblox data
    442. Soundblox 4" Type R; painted 0.200 0.880 0.630 0.650 0.520 0.430 0.430 0.670 Soundblox data
    443. Soundblox 6" Type A1; painted 0.620 0.840 0.360 0.430 0.270 0.500 0.500 0.475 Soundblox data
    444. Soundblox 6" Type R; painted 0.390 0.990 0.650 0.580 0.430 0.450 0.450 0.663 Soundblox data
    445. Soundblox 6" Type RSC; painted 0.480 0.995 0.910 0.760 0.670 0.510 0.510 0.834 Soundblox data
    446. Soundblox 8" RSR; split rib, unpainted 0.610 0.810 0.570 0.550 0.660 0.640 0.640 0.648 Soundblox data
    447. Soundblox 8" Type A1; painted 0.970 0.440 0.380 0.390 0.500 0.600 0.600 0.428 Soundblox data
    448. Soundblox 8" Type Q; painted 0.995 0.570 0.610 0.370 0.560 0.550 0.550 0.528 Soundblox data
    449. Soundblox 8" Type R; painted 0.330 0.940 0.620 0.600 0.570 0.490 0.490 0.683 Soundblox data
    450. Soundblox 8" Type RR; painted 0.610 0.910 0.650 0.650 0.420 0.490 0.490 0.658 Soundblox data
    451. Soundblox 8" Type RSC; painted 0.500 0.995 0.995 0.660 0.560 0.720 0.720 0.803 Soundblox data
    452. Soundwood acoustic cladding 0.350 0.650 0.750 0.400 0.250 0.300 0.300 0.513 Hann Tucker
    453. Steel 0.050 0.100 0.100 0.100 0.070 0.020 0.020 0.093 Egan
    454. Steeltone (A.A.V. ltd) 0.200 0.340 0.880 0.700 0.500 0.570 0.570 0.605 Hann Tucker
    455. Tectum deck, 1" - Mounting A (on concrete) 0.060 0.130 0.240 0.450 0.820 0.640 0.640 0.410 Tectum data
    456. Tectum FabriTough panels, Mtg. A 0.050 0.160 0.300 0.570 0.940 0.700 0.700 0.493 Tectum data
    457. Tectum FabriTough panels, Mtg. C-40, insulation 0.300 0.770 0.995 0.980 0.790 0.950 0.950 0.884 Tectum data
    458. Tectum FabriTough panels, Mtg. D-20, insulation 0.130 0.190 0.450 0.860 0.800 0.840 0.840 0.575 Tectum data
    459. Tectum, 1", against solid backing 0.060 0.130 0.240 0.450 0.820 0.640 0.640 0.410 Tectum Company
    460. Tectum, 1", over 1" fiberglass batt (3/4" furring) 0.070 0.150 0.360 0.650 0.710 0.810 0.810 0.468 Tectum Company
    461. Thick porous sound-abosrbing material, 2" thick, or thin material with airspace 0.380 0.600 0.780 0.800 0.780 0.700 0.700 0.740 Egan
    462. Thick, fibrous material behind open facing 0.600 0.750 0.820 0.800 0.600 0.750 0.750 0.743 Egan
    463. Thin porous sound-abosrbing material, 3/4" thick 0.100 0.600 0.800 0.820 0.780 0.600 0.600 0.750 Egan
    464. Tonewood acoustic cladding 0.080 0.350 0.800 0.700 0.550 0.550 0.550 0.600 Hann Tucker
  Wood 465. Wood Panels (solid), 1", over air space (+/- 3") 0.190 0.140 0.090 0.060 0.060 0.050 0.050 0.088 Beranek (C&OH '96)
    466. Wood Panels (solid), 1/2", on furring 0.280 0.220 0.190 0.130 0.080 0.060 0.060 0.155 Beranek (JASA '98)
    467. Wood Panels (solid), 3/4", on furring 0.250 0.180 0.110 0.080 0.070 0.060 0.060 0.110 Beranek (JASA '98)
    468. Wood Panels (solid), 3/4", over 1" compressed FG 0.200 0.150 0.080 0.050 0.050 0.050 0.050 0.083 Beranek (JASA '98)
    469. Wood, 1" paneling with air space 0.190 0.140 0.090 0.060 0.060 0.050 0.050 0.088 Egan
    470. Wood, 1/2" paneling, perf to 11%, on 2.5" glass fiber 0.400 0.900 0.800 0.500 0.400 0.650 0.650 0.650 Egan
    471. Wood, 1/4" paneling, with air space 0.420 0.210 0.100 0.080 0.060 0.060 0.060 0.113 Egan
    472. Wood, pine sheathing 0.100 0.110 0.100 0.080 0.080 0.110 0.110 0.093 wjhw?
    473. Woodacoustic A (A.A.V. ltd) 0.150 0.350 0.400 0.600 0.850 0.550 0.550 0.550 Hann Tucker
    474. Woodacoustic C (A.A.V. ltd) 0.260 0.720 0.540 0.420 0.630 0.510 0.510 0.578 Hann Tucker
FLOORS Carpet 501. Carpet, 1/4" pile 0.040 0.100 0.150 0.300 0.500 0.550 0.550 0.263 wjhw?
500   502. Carpet, 1/8" pile 0.030 0.050 0.090 0.200 0.300 0.400 0.400 0.160 wjhw?
    503. Carpet, 5 mm, foam backed 0.050 0.100 0.120 0.300 0.400 0.500 0.500 0.230 wjhw?
    504. Carpet, heavy, glued to concrete 0.020 0.060 0.140 0.370 0.600 0.650 0.650 0.293 Beranek (JASA '98)
    505. Carpet, heavy, on 40 oz. pad 0.080 0.240 0.570 0.690 0.710 0.730 0.730 0.553 wjhw?
    506. Carpet, heavy, on 5/8" perf mineral fiberboard, air space 0.370 0.410 0.630 0.850 0.960 0.700 0.700 0.713 Egan
    507. Carpet, heavy, on concrete 0.020 0.060 0.140 0.370 0.600 0.650 0.650 0.293 Egan
    508. Carpet, heavy, on concrete 0.050 0.060 0.140 0.370 0.600 0.650 0.650 0.293 wjhw?
    509. Carpet, heavy, on foam rubber 0.080 0.240 0.570 0.690 0.710 0.730 0.730 0.553 Egan
    510. Carpet, heavy, over foamed rubber pad 0.080 0.240 0.570 0.690 0.710 0.730 0.730 0.553 Beranek (JASA '98)
    511. Carpet, heavy, w/impermeable latex on foam rubber 0.080 0.270 0.390 0.340 0.480 0.630 0.630 0.370 Egan
    512. Carpet, indoor-outdoor, glued 0.020 0.030 0.060 0.100 0.260 0.470 0.470 0.113 wjhw?
    513. Carpet, thin, glued to concrete 0.020 0.040 0.080 0.200 0.350 0.400 0.400 0.168 Beranek (JASA '98)
  Concrete 514. Concrete 0.020 0.020 0.020 0.030 0.030 0.040 0.040 0.025 Hann Tucker
    515. Concrete 0.010 0.010 0.020 0.020 0.020 0.020 0.020 0.018 Egan
    516. Concrete floor 0.010 0.010 0.010 0.020 0.020 0.020 0.020 0.015 wjhw?
    517. Concrete or terrazzo 0.010 0.010 0.020 0.020 0.020 0.020 0.020 0.018 Egan
    518. Glazed tile or marble 0.020 0.020 0.020 0.020 0.020 0.020 0.020 0.020 Hann Tucker
    519. Indoor-Outdoor carpet 0.010 0.050 0.100 0.200 0.450 0.650 0.650 0.200 Egan
  Linoleum 520. Linoleum Tiles, 1/8", adhered to concrete 0.040 0.030 0.030 0.030 0.030 0.020 0.020 0.030 Beranek (JASA '98)
    521. Linoleum, rubber, or asphalt tile on concrete 0.020 0.030 0.030 0.030 0.030 0.020 0.020 0.030 Egan
  Marble 522. Marble or glazed tile 0.010 0.010 0.010 0.010 0.020 0.020 0.020 0.013 Egan
    523. Marble Tiles, adhered to wall/floor 0.010 0.010 0.010 0.010 0.020 0.020 0.020 0.013 Cavanaugh (AA '99)
  Various 524. Medium pile carpet with underlay 0.100 0.150 0.300 0.500 0.650 0.700 0.700 0.400 Hann Tucker
    525. Office grade carpet tile 0.100 0.150 0.250 0.300 0.400 0.400 0.400 0.275 Hann Tucker
    526. Poured Concrete Floor, all, painted or sealed 0.010 0.010 0.020 0.020 0.020 0.020 0.020 0.018 Beranek (C&OH '96)
  Timber 527. Suspended timber floor with carpet 0.300 0.350 0.350 0.550 0.650 0.700 0.700 0.475 Hann Tucker
    528. Suspended timber floor, 19mm air space 0.300 0.200 0.100 0.100 0.100 0.080 0.080 0.125 Hann Tucker
    529. Suspended timber floor, large air space 0.300 0.250 0.150 0.100 0.100 0.100 0.100 0.150 Hann Tucker
  Various 530. Terrazzo Floor, 1/4", mud set or thin set 0.010 0.010 0.020 0.020 0.020 0.020 0.020 0.018 Cavanaugh (AA '99)
    531. Thick pile carpet with underlay 0.150 0.250 0.500 0.600 0.700 0.700 0.700 0.513 Hann Tucker
    532. VCT on concrete 0.020 0.030 0.030 0.030 0.030 0.020 0.020 0.030 wjhw?
    533. Vinyl or woodblock floor 0.030 0.030 0.030 0.040 0.050 0.050 0.050 0.038 Hann Tucker
    534. Wood floor 0.150 0.110 0.100 0.070 0.060 0.070 0.070 0.085 Egan
  Wood 535. Wood Floor (t&g), 2 layers 5/8", adhered to concrete 0.090 0.060 0.050 0.050 0.050 0.040 0.040 0.053 Beranek (JASA '98)
    536. Wood Floor (t&g), 3/4", adhered to concrete 0.100 0.080 0.070 0.060 0.060 0.060 0.060 0.068 Beranek (JASA '98)
    537. Wood floor on joists 0.150 0.110 0.100 0.070 0.060 0.070 0.070 0.085 wjhw?
    538. Wood parquet on concrete 0.040 0.040 0.070 0.060 0.060 0.070 0.070 0.058 Egan
    539. Wood parquet on concrete 0.040 0.040 0.070 0.070 0.060 0.070 0.070 0.060 wjhw?
    540. Wood Stage Floor (T&G), 2 layers 1/2", on joists 0.100 0.070 0.060 0.060 0.060 0.060 0.060 0.063 Beranek (JASA '98)
DRAPES & PACKAGE ITEMS 601. 2' x 4' banner, 1-1/2", 1.5# fiberglass core 0.320 0.590 1.490 1.530 1.360 0.590 0.590 1.243 Cavanaugh (AA '99)
  600 602. 2' x 4' banner, 1-1/2", 3# fiberglass core 0.320 0.620 1.270 1.480 0.860 0.460 0.460 1.058 Cavanaugh (AA '99)
    603. Drapery, 10 oz/yd, against  wall; no fullness 0.030 0.040 0.110 0.170 0.240 0.350 0.350 0.140 Cavanaugh (AA '99)
    604. Drapery, 14 oz/yd, 4" air space; 50% fullness 0.070 0.310 0.490 0.750 0.700 0.600 0.600 0.563 Cavanaugh (AA '99)
    605. Drapery, 18 oz/yd, 4" air space; 50% fullness 0.140 0.350 0.550 0.720 0.700 0.650 0.650 0.580 Cavanaugh (AA '99)
    606. Fabric, 10 oz velour, straight  0.030 0.040 0.110 0.170 0.240 0.350 0.350 0.140 wjhw?
    607. Fabric, 14 oz velour, 50% full 0.070 0.310 0.490 0.750 0.700 0.600 0.600 0.563 wjhw?
    608. Fabric, 18 oz velour, 50% full 0.140 0.350 0.550 0.720 0.700 0.650 0.650 0.580 wjhw?
    609. Heavyweight drapery, 18oz, draped to half area 0.140 0.350 0.550 0.720 0.700 0.600 0.600 0.580 Egan
    610. Large-Scale Diffusor, 9-1/8", RPG "QRD-734" 0.220 0.260 0.330 0.230 0.200 0.210 0.210 0.255 RPG tests
    611. Lightweight drapery, 10oz, flat on wall 0.030 0.040 0.110 0.170 0.240 0.150 0.150 0.140 Egan
    612. MBI Cloudlite Baffles, 2600-1030 2 mil PVC 0.313 0.493 0.840 1.440 1.514 1.086 1.086 1.072 MBI
    613. MBI Cloudlite Baffles, 2600-1515 2 mil PVC 0.378 0.639 1.276 1.600 1.490 1.119 1.119 1.251 MBI
    614. MBI Cloudlite Baffles, 2600-2015 2 mil PVC 0.396 0.740 1.418 1.728 1.565 1.141 1.141 1.363 MBI
    615. MBI Cloudlite Baffles, 2600-2015 3 mil PVC 0.383 0.699 1.469 1.356 0.791 0.400 0.400 1.079 MBI
    616. MBI Cloudlite Baffles, 2600-2020 perf. PVC 0.343 0.743 1.355 1.733 1.681 1.545 1.545 1.378 MBI
    617. MBI Cloudlite Baffles, 2800-2020 sailcloth 0.286 0.679 1.353 1.698 1.680 1.604 1.604 1.353 MBI
    618. MBI Cloudlite Baffles, 2800-HL Fabric 0.285 0.738 1.365 1.733 1.790 1.748 1.748 1.407 MBI
    619. Medium curtain, in folds, on solid 0.050 0.150 0.350 0.400 0.500 0.500 0.500 0.350 Hann Tucker
    620. Medium curtain, straight, on solid 0.050 0.100 0.150 0.200 0.250 0.300 0.300 0.175 Hann Tucker
    621. Mediumweight drapery, 14oz, draped to half area 0.070 0.310 0.490 0.750 0.700 0.550 0.550 0.563 Egan
  Diffuser 622. RPG '734-QRD Diffusor (wood, Melamine) 0.230 0.240 0.350 0.230 0.200 0.200 0.200 0.255 RPG data
    623. RPG DiffusorBlox, painted 0.760 0.510 0.580 0.340 0.240 0.260 0.260 0.418 RPG data
    624. RPG DiffusorBlox, unpainted 0.980 0.900 0.920 0.770 0.800 0.770 0.770 0.848 RPG data
    625. RPG fiberglass Golden Pyramid  diffusers, 2x2; mtg. A 0.740 0.120 0.100 0.050 0.030 0.030 0.030 0.075 RPG data
    626. RPG FlutterFree diffusion molding (wood) 0.230 0.240 0.350 0.230 0.200 0.200 0.200 0.255 RPG data
    627. RPG FRG Golden Pyramid  diffusers, 2x2; mtg. E-400 0.390 0.190 0.100 0.100 0.080 0.140 0.140 0.118 RPG data
    628. RPG FRG Omniffusor 0.300 0.210 0.280 0.530 0.210 0.360 0.360 0.308 RPG data
    629. RPG Modex Corner Absorber 0.440 0.190 0.080 0.070 0.080 0.040 0.040 0.105 RPG data
    630. RPG Skyline primitive root 2D diffuser 0.000 0.100 0.140 0.340 0.460 0.310 0.310 0.260 RPG data
    631. RPG Thermoformed (plastic) lay-in Formedffusor, E400 0.530 0.370 0.380 0.320 0.150 0.180 0.180 0.305 RPG data
    632. Small-Scale Diffusor, 1-1/6", RPG "Flutter Free" 0.190 0.140 0.100 0.150 0.180 0.200 0.200 0.143 RPG tests
    633. Wenger, Absorber, 4x4, fabric faced, EACH 7.680 12.480 16.800 17.280 14.240 15.200 15.200 15.200 Wenger data
    634. Wenger, Quadratic diffuser, 7 well sequence, plastic, PSF 0.360 0.540 0.590 0.430 0.240 0.170 0.170 0.450 Wenger data
    635. Wenger, Type 1 Diffuser, 4x4, fabric faced, EACH 3.040 4.160 2.560 2.240 2.240 2.720 2.720 2.800 Wenger data
    636. Wenger, 'Type 1 diffuser, 4x4, gel coat finish, E400, PSF 0.090 0.130 0.120 0.100 0.160 0.250 0.250 0.128 Wenger data
    637. Wenger, Type 1 diffuser, 4x4, wall mounted, A, PSF 0.130 0.130 0.050 0.020 0.060 0.080 0.080 0.065 Wenger data
    638. Wenger, Type 2 diffuser, bowed, 4x8, gel coat, EACH 12.160 13.120 9.920 5.440 2.240 3.200 3.200 7.680 Wenger data
FENESTRATION 701. 44mm flush door 0.250 0.150 0.100 0.080 0.080 0.080 0.080 0.103 Hann Tucker
700   702. 45mm solid core door 0.150 0.100 0.080 0.080 0.080 0.080 0.080 0.085 Hann Tucker
    703. Glass w/ venetian blinds 0.070 0.050 0.100 0.160 0.130 0.180 0.180 0.110 wjhw?
    704. Glass, > 1/4", monolithic 0.180 0.050 0.040 0.030 0.020 0.020 0.020 0.035 Cavanaugh (AA '99)
    705. Glass, 1/4" large 0.150 0.050 0.040 0.030 0.020 0.020 0.020 0.035 wjhw?
    706. Glass, 1/4", monolithic 0.350 0.250 0.180 0.120 0.070 0.040 0.040 0.155 C&A Files
    707. Glass, 24 oz operable 0.100 0.050 0.040 0.030 0.030 0.030 0.030 0.038 wjhw?
    708. Glass, heavy, large panes 0.180 0.060 0.040 0.030 0.020 0.020 0.020 0.038 Egan
    709. Glass, ordinary window 0.350 0.250 0.180 0.120 0.070 0.040 0.040 0.155 Egan
    710. Glazing 0.150 0.100 0.050 0.030 0.030 0.030 0.030 0.053 Hann Tucker
    711. Venetian Blinds, 5" air space 0.070 0.050 0.100 0.160 0.130 0.180 0.180 0.110 C&A Files
    712. Venetian blinds, metal 0.060 0.050 0.070 0.150 0.130 0.170 0.170 0.100 Egan
    713. Window, 6mm glass 0.130 0.070 0.040 0.020 0.020 0.020 0.020 0.038 Hann Tucker
    714. Window, up to 4mm glass 0.350 0.250 0.150 0.100 0.050 0.050 0.050 0.138 Hann Tucker
MECHANICAL SYSTEM, 800 801. Diffusers & Grilles, average 0.150 0.200 0.300 0.350 0.450 0.550 0.550 0.325 Cavanaugh (AA '99)
OUTDOORS 901. Grass, 2" High, outdoors, minimal dirt patches 0.110 0.260 0.600 0.690 0.920 0.990 0.990 0.618 Egan
900   902. Grass, marion bluegrass, 2" high 0.110 0.260 0.600 0.690 0.920 0.990 0.990 0.618 Egan
    903. Gravel, loose and moist, 4" thick 0.250 0.600 0.650 0.700 0.750 0.800 0.800 0.675 Egan
    904. Snow, 4" Deep, freshly fallen (not packed) 0.450 0.750 0.900 0.950 0.950 0.900 0.900 0.888 Egan
    905. Snow, freshly fallen, 4" thick 0.450 0.750 0.900 0.950 0.950 0.950 0.950 0.888 Egan
    906. Soil, rough 0.150 0.250 0.400 0.550 0.600 0.600 0.600 0.450 Egan
    907. Trees, balsam firs, 20sq.ft area per tree, 8' high 0.030 0.060 0.110 0.170 0.270 0.310 0.310 0.153 Egan
    908. Water 0.010 0.010 0.010 0.020 0.020 0.020 0.020 0.015 wjhw?
    909. Water surface (swimming pool) 0.010 0.010 0.010 0.020 0.020 0.030 0.030 0.015 Egan
    910. Water surface, as in a swimming pool 0.280 0.220 0.170 0.090 0.100 0.110 0.110 0.145 Cavanaugh (AA '99)