Waterproofing jobs are available in commercial and residential construction industries. Construction, roofing, general contracting, and masonry companies hire waterproofers for a range of building site tasks. As a waterproofer, you apply caulking, sealants, and coatings to roofing and structural joints to prevent water from getting through. Your responsibilities include determining the appropriate materials and processes to repair and waterproof a roof, ensuring clean and proper application of caulking and other compounds, and following company guidelines to complete each task. Job duties involve climbing up and down ladders, navigating difficult terrain while at high elevation, and working in all weather conditions to meet deadlines.