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R-671 — Fiberboard

Material Id
Fiberboard
Record Id
671
Date
5/27/1949
Delta T (F)
23.08
Delta X (in)
0.962
Density (lb/ft3)
14.6
Description
One Side (painted) Sanded for Test
Form
Board
K W Mk (W/mK)
0.3519
Manufacturer
Baltimore Lumber Company
Material
Fiberboard
Mean Temp (F)
70.41
R Value per Inch (ft2hF/BTU/in)
0.409855
Rsi per Inch (m2K/W/in)
0.07218
Standard
Nist Srd 81 API
Test Method
ASTM C 177

Source: NIST SRD 81 API

fiberboard — record id 671 · rsi per inch 0.0721796 m2K/W/in · r value per inch 0.409855 ft2hF/BTU/in · k w mk 0.3519 W/mK · date 5/27/1949 | Insulation R Values | Engineering Database