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Glossary » Units » Thermal Resistance Coefficient » R-Value (imperial)
R-Value (imperial) (°F-ft2-h/Btu (therm.)) is a unit in the category of Thermal resistance coefficient. This unit is commonly used in the UK, US unit systems. R-Value (imperial) (°F-ft2-h/Btu (therm.)) has a dimension of M-1T3Q where M is mass, T is time, and Q is temperatur. It can be converted to the corresponding standard SI unit K-m2/W by multiplying its value by a factor of 0.176228083653.
Note that the seven base dimensions are M (Mass), L (Length), T (Time), Q (Temperature), N (Aamount of Substance), I (Electric Current), and J (Luminous Intensity).
Other units in the category of Thermal resistance coefficient include Clo (clo), Kelvin Meter Squared Per Watt (K-m2/W), RSI (metric R-Value) (RSI), and Tog (tog).
Related Glossary Pages
Glossary: Units: Thermal Conductivity: British Thermal Unit (IT) Per Foot Per Hour Per Fahrenheit Degree
Glossary: Units: Volume: Cubic Yard
Glossary: Units: Volume Flow Rate: Cubic Inch Per Minute
Glossary: Units: Electric Permittivity: Ampere Second Per Volt Per Meter
Glossary: Units: Time: A.u. of Time
Glossary: Units: Force: Ton Force (short)
Glossary: Units: Surface Density: Pound Mass Per Square Inch
Glossary: Units: Length: Nautical Mile (international)
Glossary: Units: Length: Terameter
Glossary: Units: Mass: Assay Ton