Análise comparativa de pinturas para intervenções no patrimônio edificado em pelotas no final do século XIX.

Abstract

The architectural examples of a city are important elements in the peculiar urban setting and allow the perception of their cultural heritage. Therefore, it is of fundamental importance to the conservation of these buildings wrap protection. Knowing the high incidence of pathological manifestations of humidity in historic buildings and observing the degradation found in paints, a prototype was subjected to tests intended to analyze the behaviors of various types of paintings suggested for historic buildings coated with lime mortar and widely used in the late nineteenth century in the city of Pelotas. Six paintings were applied with lime and potassium silicate inks in a masonry prototype laid and coated with mortar of hydraulic lime. The painted areas were submitted a tests of abrasion resistance, adhesiveness resistance, applicability and covering power, dustiness, infiltration of rainwater and natural aging. The results of this research showed that it is not possible to determine a single type of ink most appropriate for external paintings on the buildings in question. The restoration professional must choose the most adequate type, as the peculiarity of each behavior, so to ensure maximum efficiency of future interventions, according to the intended use.