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R-89 — Rock Wool
- Material Id
- Rock Wool
- Record Id
- 89
- Date
- 7/19/1937
- Density (lb/ft3)
- 16.4
- Description
- Rock wool, Asphalt Binder
- Form
- Board
- K W Mk (W/mK)
- 0.377
- Manufacturer
- Johns Manville
- Material
- Rock Wool
- Mean Temp (F)
- 121.2
- R Value per Inch (ft2hF/BTU/in)
- 0.382567
- Rsi per Inch (m2K/W/in)
- 0.067374
- Standard
- Nist Srd 81 API
- Trade Name
- Rock Cork®
Source: NIST SRD 81 API