Pools heated to more than 90 degrees F must have a pool cover with a minimum R value of how much?

The correct value for the minimum R-value of a pool cover for pools heated to more than 90 degrees Fahrenheit is indeed 12. This requirement exists to enhance energy efficiency and safety, as a higher R-value indicates better insulating properties. A cover with an R-value of 12 significantly reduces heat loss from the pool, which is particularly important for maintaining the water temperature and minimizing energy costs associated with heating the pool.

The R-value measures the thermal resistance of the material; the higher the value, the better the insulation. In this context, using a cover with a minimum R-value of 12 helps prevent heat escape, maintains a comfortable swimming temperature, and ultimately leads to reduced energy consumption and costs.

In summary, a pool cover with an R-value of 12 is essential for pools heated above 90 degrees Fahrenheit as it enhances insulation, conserves energy, and ensures a comfortable swimming environment.