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R-185 — Fiberboard

Material Id
Fiberboard
Record Id
185
Date
6/20/1940
Delta X (in)
0.772
Density (lb/ft3)
16.3
Description
Fiber(?) Sheathing board, asphalt, Aluminum Paint
Form
Board
K W Mk (W/mK)
0.37
Material
Fiberboard
Mean Temp (F)
92.9
R Value per Inch (ft2hF/BTU/in)
0.389805
Rsi per Inch (m2K/W/in)
0.068649
Standard
Nist Srd 81 API

Source: NIST SRD 81 API

fiberboard — record id 185 · rsi per inch 0.0686486 m2K/W/in · r value per inch 0.389805 ft2hF/BTU/in · k w mk 0.37 W/mK · date 6/20/1940 | Insulation R Values | Engineering Database