A measure of the heat conductivity of a material; used to designate the insulation quality of building materials.
Related information about r-value:
- R-value (insulation) - Wikipedia, the free encyclopedia
The R-value is a measure of thermal resistance used in the building and construction industry. Under uniform conditions it is the ratio of the temperature ...
- R-value - Wikipedia, the free encyclopedia
R-value can refer to: Properties of materials: R-value (insulation), the efficiency of insulation of a house; R-value (soils), stability of soils and aggregates for ...
- Recommended Levels of Insulation : ENERGY STAR
Insulation level are specified by R-Value. R-Value is a measure of insulation's ability to resist heat traveling through it. The higher the R-Value the better the ...
- ColoradoENERGY.org - R-Value Table
R-Value Table. Insulation Values For Selected Materials ...
- R-Value Table
The method of determining 'Wall Assembly R-Value” by adding the R-Values together gives incorrect results for energy savings when used to determine the ...
- CIMA – What does R-Value mean?
Cellulose Insulation Manufacturers Association (CIMA) – What does R-Value mean?
- Insulation R-value and air sealing - Why both are important
To maximize comfort and minimize energy costs, get a good R-value plus air sealing by using spray foam.
- Home Insulation Basics: Higher R-Values = Higher Insulating Values
As the nation's consumer protection agency, the FTC enforces a number of energy-related laws, including the R-value Rule, which deals with insulation.