what is r value? how to get the r value? and what is the importance of it?
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R-value, on the other hand, is a material property value: It measures a material's resistance to heat flow, which is important in the rating of insulation used in your attic, for example. It measures the rate at which heat is transferred or lost and is based on conduction and resistance.
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At the technical level, R-value is a measure of resistance to heat flow through a given thickness of material. In theory, the higher the R-value, the greater that resistance. That's true to a point, but it's just one of four key factors that determine the effectiveness of an insulationmaterial.
u can get the r- value by using this formula
The importance of R-value for energy efficiency is that it is a standard measure of the ability of a material to stem the flow of heat or cold across a space or area. The Department of Energy gives guidelines for the R-valueneeded for different parts of the home, according to the climate zone the building is in.
u can get the r- value by using this formula
The importance of R-value for energy efficiency is that it is a standard measure of the ability of a material to stem the flow of heat or cold across a space or area. The Department of Energy gives guidelines for the R-valueneeded for different parts of the home, according to the climate zone the building is in.
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