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R-1121 — Fiberboard

Material Id
Fiberboard
Record Id
1121
Date
12/19/1958
Delta T (F)
23.81
Delta X (in)
0.501
Density (lb/ft3)
14.6
Description
Insulation board, ½ in.
Form
Board
K W Mk (W/mK)
0.334
Material
Fiberboard
Mean Temp (F)
73.34
R Value per Inch (ft2hF/BTU/in)
0.43182
Rsi per Inch (m2K/W/in)
0.076048
Standard
Nist Srd 81 API
Test Method
ASTM C 177

Source: NIST SRD 81 API

fiberboard — record id 1121 · rsi per inch 0.0760479 m2K/W/in · r value per inch 0.43182 ft2hF/BTU/in · k w mk 0.334 W/mK · date 12/19/1958 | Insulation R Values | Engineering Database