What does a higher R-value in insulation indicate?

A higher R-value in insulation indicates better insulating characteristics of the material. The R-value measures the resistance to heat flow; the higher the R-value, the more effective the insulation is at reducing heat transfer. This means that materials with a higher R-value are more efficient at keeping heat inside during colder months and outside during warmer months, leading to improved energy efficiency and comfort in buildings.

While thickness and flexibility may play a role in the overall insulation performance, they are not directly represented by the R-value. The R-value is primarily a function of the material's ability to resist conductive heat flow, making it a crucial metric for assessing insulation performance.