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R-55 — Vermiculite

Material Id
Vermiculite
Record Id
55
Date
3/13/1936
Density (lb/ft3)
8.5
Form
Loose
K W Mk (W/mK)
0.52
Manufacturer
Zonolite Co.
Material
Vermiculite
Mean Temp (F)
75
R Value per Inch (ft2hF/BTU/in)
0.277361
Rsi per Inch (m2K/W/in)
0.048846
Standard
Nist Srd 81 API
Trade Name
Zonolite®

Source: NIST SRD 81 API

vermiculite — record id 55 · rsi per inch 0.0488462 m2K/W/in · r value per inch 0.277361 ft2hF/BTU/in · date 3/13/1936 · k w mk 0.52 W/mK | Insulation R Values | Engineering Database