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R-781 — Cellular Polystyrene Extruded

Name: Insulation R Values — cellular_polystyrene_extruded: record id 781 · date 10/11/1950 · delta x 0.9825 in · mean temp 42.06 F · delta t 26.46 F
Creator: Engineering Database

Material Id: Cellular Polystyrene Extruded
Record Id: 781
Date: 10/11/1950
Delta T (F): 26.46
Delta X (in): 0.9825
Density (lb/ft3): 1.45
Form: Board
K W Mk (W/mK): 0.2589
Manufacturer: Dow Chemical Co.
Material: Cellular Polystyrene, Extruded
Mean Temp (F): 42.06
R Value per Inch (ft2hF/BTU/in): 0.55708
Rsi per Inch (m2K/W/in): 0.098107
Standard: Nist Srd 81 API
Test Method: ASTM C 177
Trade Name: Styrofoam®

Source: NIST SRD 81 API

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