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R-780 — Cellular Polystyrene Extruded

Name: Insulation R Values — cellular_polystyrene_extruded: record id 780 · date 10/10/1950 · delta x 0.9828 in · mean temp 69.48 F · delta t 24.56 F
Creator: Engineering Database

Material Id: Cellular Polystyrene Extruded
Record Id: 780
Date: 10/10/1950
Delta T (F): 24.56
Delta X (in): 0.9828
Density (lb/ft3): 1.443
Form: Board
K W Mk (W/mK): 0.2811
Manufacturer: Dow Chemical Co.
Material: Cellular Polystyrene, Extruded
Mean Temp (F): 69.48
R Value per Inch (ft2hF/BTU/in): 0.513084
Rsi per Inch (m2K/W/in): 0.090359
Standard: Nist Srd 81 API
Test Method: ASTM C 177
Trade Name: Styrofoam®

Source: NIST SRD 81 API

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