R-Value or thermal resistance indicates the resistance to heat flow. The higher the R-value, the greater the capacity for your hot tub cover to insulate from heat loss.
Also, the greater the r-value, the more energy efficient.
R-Value or thermal resistance indicates the resistance to heat flow. The higher the R-value, the greater the capacity for your hot tub cover to insulate from heat loss.
Also, the greater the r-value, the more energy efficient.