The aim of the research was to relate thermal performance as a way of passively controlling oscillations in solar radiation and temperature and achieving comfort levels (thermal sensation) for residents in light, moderate, and heavy indoor activities. The identification of factors related to the architectural standards of single-family units in a large part of the Brazilian housing stock revealed outdated contours, derived from the disregard of requirements for climatic diversity, adequate thermophysical conditions of the seals, and the biophysical profile of the resident. The proposed single-family housing project is aimed at low-income populations in the northern (city of Belém) and southern (city of Curitiba) regions of Brazil. The thermophysical behavior obtained in the proposed samples of sustainable construction solutions for opaque and transparent seals is the result of the sustainability analysis of the construction system, which made it possible to reduce design uncertainties that led to high levels of discomfort, cost overruns, and increased electricity consumption.