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R-356 — Feathers

Material Id
Feathers
Record Id
356
Date
12/17/1943
Delta T (F)
17.03
Delta X (in)
0.59
Density (lb/ft3)
2.08
Description
100 % chicken, Placed in Balloon-cloth, compressed, 0.6 in.
Form
Loose
K W Mk (W/mK)
0.2268
Material
Feathers
Mean Temp (F)
73.07
R Value per Inch (ft2hF/BTU/in)
0.635925
Rsi per Inch (m2K/W/in)
0.111993
Standard
Nist Srd 81 API

Source: NIST SRD 81 API

feathers — record id 356 · description 100 % chicken, placed in balloon-cloth, compressed, 0.6 in. · rsi per inch 0.111993 m2K/W/in · r value per inch 0.635925 ft2hF/BTU/in · k w mk 0.2268 W/mK | Insulation R Values | Engineering Database