Quality Control is maintained as a normal step in application of your roofing project. Dallas/Fort Worth Urethane follows manufacturer recommendations and implements other steps to insure every SPF roof we install is the best quality. We use state of the art temperature controlled trailers with tanks to maintain materials at their peak performance. Wet bulb thermometers are used to determine humidity. Implements have been designed to measure foam thickness. Slit samples are taken to determine mileage of coatings.