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

R-20 — Glass Fiber Board

Name: Insulation R Values — glass_fiber_board: record id 20 · date 9/18/1933 · rsi per inch 0.0740525 m2K/W/in · r value per inch 0.42049 ft2hF/BTU/in · k w mk 0.343 W/mK
Creator: Engineering Database

Material Id: Glass Fiber Board
Record Id: 20
Date: 9/18/1933
Delta X (in): 1
Density (lb/ft3): 14.5
K W Mk (W/mK): 0.343
Material: Glass Fiber Board
Mean Temp (F): 92.3
R Value per Inch (ft2hF/BTU/in): 0.42049
Rsi per Inch (m2K/W/in): 0.074052
Standard: Nist Srd 81 API
Trade Name: Red Top

Source: NIST SRD 81 API

Browse more civil engineering reference tables →