------------- Secondary (high) school graduation certificate
Tasks
--------- Clean and prepare surfaces
Cut and install metal corner beads to protect exterior corners
Fabricate and install suspended metal ceiling grids and place in panels to form acoustical and coffered ceilings
Fill joints, nail indentations, holes and cracks with joint compound using trowel and broad knife
Measure, cut, fit and install drywall sheets
Smooth out excess compound and allow coat to dry