A professional who tends machine that saturates rolls of untreated roofing felt with hot, liquid asphalt. Respnsibilities include:

• Threads felt through machine rollers and starts machine.
• Turns wheels and moves levers to regulate machine speed, flow of asphalt, and tension on felt and press rollers.
• Presses control button to regulate flow of felt to ensure uniform saturation and prevent damage of felt.
• Tears test pieces from saturated felt to verify specified degree of saturation.