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R-23 — Vermiculite

Material Id
Vermiculite
Record Id
23
Date
9/20/1933
Delta X (in)
1.01
Density (lb/ft3)
13.5
Form
Loose
K W Mk (W/mK)
0.448
Manufacturer
Zonolite Co.
Material
Vermiculite
Mean Temp (F)
82
R Value per Inch (ft2hF/BTU/in)
0.321937
Rsi per Inch (m2K/W/in)
0.056696
Standard
Nist Srd 81 API
Trade Name
Zonolite®

Source: NIST SRD 81 API

vermiculite — record id 23 · rsi per inch 0.0566964 m2K/W/in · r value per inch 0.321937 ft2hF/BTU/in · date 9/20/1933 · k w mk 0.448 W/mK | Insulation R Values | Engineering Database