The design of urban squares in the city of Mendoza, Argentina, is based on aesthetic and landscaping criteria without consider strategies to enhance the benefits that green areas generate on the city’s micrometeorological conditions. The paper aims to evaluate different design alternatives with the purpose to determine which proportion and distribution of green and sealed areas contributes to achieve the best conditions in terms of thermal behavior and comfort. ENVI-met software was used to simulate thermal conditions over twenty three scenarios, and COMFA method was employed to determine comfort in the scenarios that show the best thermal behaviour and are representative of current design trends. The results show that the most effective scheme for the memorial squares rehabilitation is the one concentrating 60% of woodlot around a sealed center with an area that does not exceed 20% the square surface. Another effective alternative is the one concentrating 60% of woodlot at the center of the area. These findings highlight the importance of an adequate relation between proportion and distribution of woodlot/sealed areas to improve thermal performance and comfort conditions of open spaces.

阿根廷门多萨（Mendoza）市的城市广场设计基于美学和景观美化标准，没有考虑增强绿地在城市微气象条件下产生的收益的策略。本文旨在评估不同的设计替代方案，以确定绿色和密封区域的哪些比例和分布有助于在热性能和舒适性方面达到最佳条件。使用ENVI-met软件在23种情况下模拟热状况，并使用COMFA方法确定在表现出最佳热性能并代表当前设计趋势的情况下的舒适度。结果表明，最有效的纪念广场修复方案是将60％的林地集中在密封中心周围，且面积不超过正方形表面的20％。另一种有效的替代方法是将60％的林地集中在该区域的中心。这些发现突出了在林地/密封区域的比例和分布之间建立适当关系的重要性，以改善热性能和开放空间的舒适度。