Mashrabiyya are typical wooden screens from Egypt that date back to the XVI century. Starting from architectural relief of real Masharbiyya, shadowing evaluations and air flow simulations allowed the determination of relations between geometrical aspects and cooling effects concerning solar control and natural ventilation. In addition, simulations concerning illuminance values on the screen plan were carried out to evaluate the visual comfort level. However, the original idea of Mashrabiyya was to use wood as a water storage system and, for this reason, they might be considered as a passive evaporative system of cooling. Therefore, the present work has focused on the study of the evaporative cooling potential of Mashrabiyya screen in the Bolzano climate contest, testing four local wood species to determine their water release rate. The results of the experimental campaign and geometrical-constructional analysis pointed out some design guidelines for Mashrabiyya project in the Bolzano climatic contest.