| R factor |
A number measuring a material's resistance to heat flow. R stands for resistance, the inverse of conductivity. Values reported on this website were determined by the ASTM C 518 test method. Values are reported at a mean temperature of 75 degrees Fahrenheit (24 degrees Celsius), and as the inverse of BTU/hr-sf-*F (Imperial units), and Watts/m2-*C (metric units).
출처: www.armstrong-aust.com.au/commclgpac/aus/ep/au/art...
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| R factor |
A designation for the determining the insulation capabilities of different types of building materials and insulation materials. Standard R Factors for mobile offices in insulation would be R-11 or R-19 in the ceiling and floor, R-11 in the sidewalls.
출처: www.satelliteco.com/glossary/m-r.html
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