Wind tunnels are an important instrument to determine the influence of the wind on the building's design. Thereby, the main purpose of this research is to formulate a user's manual to help conducting experiments in the boundary layer wind tunnel of the Environmental Comfort and Applied Physics Laboratory at Unicamp. In the actual stage of this research, speed tests are being performed to calibrate a boundary layer profile. The results from the experiments are shown and analyzed by the comparison with data from published literature.