West Virginia Contractors License Practice Exam

In climate zone 3, the R value insulation requirement for residential floors is indeed 19. This value is established based on energy efficiency standards to ensure that buildings retain heat effectively during colder seasons and maintain cooler temperatures during warmer months. The R value indicates the thermal resistance of insulation materials, and a higher R value indicates better insulating properties. By requiring an R value of 19 for floors in this climate zone, it helps to reduce energy consumption, lower heating and cooling costs, and enhance indoor comfort. This requirement is consistent with recommendations from building codes and energy efficiency programs, which promote adequate insulation levels to improve overall energy performance in residential properties.