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R-1080 — Fiberboard

Material Id
Fiberboard
Record Id
1080
Date
11/12/1957
Delta T (F)
24.48
Delta X (in)
1.0028
Density (lb/ft3)
11.78
Description
Roof insulation, 1 in.
Form
Board
K W Mk (W/mK)
0.3076
Manufacturer
Kaiser Gypsum Company, Inc.
Material
Fiberboard
Mean Temp (F)
74.07
R Value per Inch (ft2hF/BTU/in)
0.468881
Rsi per Inch (m2K/W/in)
0.082575
Standard
Nist Srd 81 API
Test Method
ASTM C 177
Trade Name
Kaiser

Source: NIST SRD 81 API

fiberboard — record id 1080 · rsi per inch 0.0825748 m2K/W/in · r value per inch 0.468881 ft2hF/BTU/in · k w mk 0.3076 W/mK · date 11/12/1957 | Insulation R Values | Engineering Database