This course covers the essentials of commercial roof hatches, including key materials, hardware, and specification requirements. It explores roof access hatch applications for both personnel and equipment, emphasizing the importance of incorporating thermal breaks to enhance energy efficiency and prevent condensation. Considerations for roof hatches in extreme weather conditions are discussed, along with how these factors relate to building code certifications and standards. Additionally, the course reviews the basics of roof hatch installation, while highlighting the importance of fall protection in compliance with OSHA regulations and other code requirements.