[NEW MEXICO (NM) GS?21 GS?21Roofing Exam Success Course] Prepare for the Roofing exam with our GS-21 Practice Course, designed to provide a comprehensive review of roofing principles and techniques. This course covers various types of roofing systems, including shingles, tiles, and metal roofing, as well as installation methods, maintenance, and repair procedures. Key topics include material properties, safety standards, and regulatory requirements. Practice questions and detailed explanations will help you understand the complexities of roofing work, ensuring you are well-prepared for the certification exam and capable of delivering high-quality roofing services.