Explore the Engineering Database more efficiently by signing up for free. Sign up free

R-158 — Vermiculite

Name: Insulation R Values — vermiculite: record id 158 · rsi per inch 0.0618005 m2K/W/in · r value per inch 0.350919 ft2hF/BTU/in · date 10/17/1939 · k w mk 0.411 W/mK
Creator: Engineering Database

Material Id: Vermiculite
Record Id: 158
Date: 10/17/1939
Delta X (in): 1.008
Density (lb/ft3): 5.15
Description: Mica fill, 8 to 16 Mesh
Form: Loose
K W Mk (W/mK): 0.411
Material: Vermiculite
Mean Temp (F): 99
R Value per Inch (ft2hF/BTU/in): 0.350919
Rsi per Inch (m2K/W/in): 0.0618
Standard: Nist Srd 81 API

Source: NIST SRD 81 API

Browse more civil engineering reference tables →