Education: Secondary (high) school graduation certificate. Work site environment: At heights. Work setting: Various locations. Tasks: Install built-up roofing systems using materials such as asphalt saturated felts and hot asphalt and gravel. Install or replace asphalt shingles, wood shingles and shakes and masonry or baked clay roofing tiles on sloped roofs of buildings. Install roofing tiles on sloped roofs of buildings. Install single-ply roofing system using waterproof sheet materials, such as modified plastics, elastomeric or other asphaltic compositions. Repair or replace single-ply roofing systems. Repair roofing systems. Instruct apprentices. Supervise other workers. Apply waterproof coatings to concrete or other masonry surfaces below or above ground level. Experience: 2 years to less than 3 years. Other benefits: Free parking available. On-site amenities.