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R-67 — Fiberboard

Name: Insulation R Values — fiberboard: record id 67 · rsi per inch 0.0725714 m2K/W/in · r value per inch 0.41208 ft2hF/BTU/in · k w mk 0.35 W/mK · date 8/25/1938
Creator: Engineering Database

Material Id: Fiberboard
Record Id: 67
Date: 8/25/1938
Delta X (in): 0.53
Density (lb/ft3): 16.4
Description: Fiberboard (?), ½ in.
Form: Board
K W Mk (W/mK): 0.35
Material: Fiberboard
Mean Temp (F): 75
R Value per Inch (ft2hF/BTU/in): 0.41208
Rsi per Inch (m2K/W/in): 0.072571
Standard: Nist Srd 81 API

Source: NIST SRD 81 API

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