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R-266 — Asphalt

Material Id
Asphalt
Record Id
266
Date
1/14/1942
Delta T (F)
21.28
Delta X (in)
0.972
Density (lb/ft3)
93
Description
49% asphalt, 51% Siliceous Mineral Filler (by weight)
Form
Block
K W Mk (W/mK)
2.9556
Material
Asphalt
Mean Temp (F)
75.69
R Value per Inch (ft2hF/BTU/in)
0.048798
Rsi per Inch (m2K/W/in)
0.008594
Standard
Nist Srd 81 API

Source: NIST SRD 81 API

asphalt — record id 266 · rsi per inch 0.00859386 m2K/W/in · r value per inch 0.0487982 ft2hF/BTU/in · date 1/14/1942 · k w mk 2.9556 W/mK | Insulation R Values | Engineering Database