The installation of GAF modified bitumen is influenced by several key process parameters. These include the temperature of the substrate and the modified bitumen, which should be within the manufacturer’s specified range to ensure proper adhesion. The application rate and method, such as torching or cold adhesive, also play a critical role. Additionally, ambient weather conditions, including humidity and wind, can affect the curing process and overall performance of the installation. Proper surface preparation is essential for optimal results.