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R-339 — Vermiculite

Name: Insulation R Values — vermiculite: record id 339 · rsi per inch 0.0426532 m2K/W/in · r value per inch 0.242196 ft2hF/BTU/in · date 8/31/1943 · k w mk 0.5955 W/mK
Creator: Engineering Database

Material Id: Vermiculite
Record Id: 339
Date: 8/31/1943
Delta T (F): 12.24
Delta X (in): 1.019
Density (lb/ft3): 10.23
Description: Expanded, No.1 Grade ore, 3 to 14 Mesh Placed in Frames
Form: Loose
K W Mk (W/mK): 0.5955
Manufacturer: Zonolite Co. (Vermiculite Production Corp.)
Material: Vermiculite
Mean Temp (F): 101.89
R Value per Inch (ft2hF/BTU/in): 0.242196
Rsi per Inch (m2K/W/in): 0.042653
Standard: Nist Srd 81 API
Trade Name: Zonolite®

Source: NIST SRD 81 API

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vermiculite — record id 339 · rsi per inch 0.0426532 m2K/W/in · r value per inch 0.242196 ft2hF/BTU/in · date 8/31/1943 · k w mk 0.5955 W/mK | Insulation R Values | Engineering Database