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R-335 — Rock Wool

Material Id
Rock Wool
Record Id
335
Date
7/11/1943
Delta T (F)
14.99
Delta X (in)
0.923
Density (lb/ft3)
15.32
Description
Rock wool, Asphalt Binder
Form
Board
K W Mk (W/mK)
0.3319
Manufacturer
Johns Manville
Material
Rock Wool
Mean Temp (F)
104.33
R Value per Inch (ft2hF/BTU/in)
0.434552
Rsi per Inch (m2K/W/in)
0.076529
Standard
Nist Srd 81 API
Trade Name
Rock Cork®

Source: NIST SRD 81 API

rock_wool — record id 335 · date 7/11/1943 · mean temp 104.33 F · rsi per inch 0.0765291 m2K/W/in · r value per inch 0.434552 ft2hF/BTU/in | Insulation R Values | Engineering Database