------------- Secondary (high) school graduation certificate
Work setting
---------------- Various locations
Tasks
--------- Install built-up roofing systems using materials such as asphalt saturated felts and hot asphalt and gravel
Install single-ply roofing system using waterproof sheet materials, such as modified plastics, elastomeric or other asphaltic compositions
Repair or replace shingles and shakes on sloped roofs of buildings
Install and repair metal roofs using hand and power tools