“…The relative humidity of the air had the opposite behavior to air temperature. It was higher in the shed with FC tiles, a fact that may be associated with lower air temperature and, from a thermal point of view, this inversion is beneficial to the animals, favoring the processes of latent heat transfer, contributing to the maintenance of thermoregulatory mechanisms of homeothermic animals, especially under high-temperature conditions (Furtado et al 2018). However, the average relative humidity in the sheds was high, above the ideal for sheep (Eustáquio Filho et al 2011;Marques et al 2021), which can compromise their vital functions since the high relative humidity associated with high temperatures make it difficult to lose heat in the sensitive form, as the atmospheric air becomes saturated with water vapor, forcing the animal to resort to latent heat loss mechanisms, with energy expenditure and increased physiological variables (Leite et al 2019).…”