Drywall
Make sure you wear safety gear when working on plaster ceilings. This is especially important if you're working with old plaster. These include goggles and masks that protect the face. Protect any furniture or walls from plaster damage by covering them.
Plasters can be applied layer by layer to create a uniform surface. Similar to concrete-laying, the plastering process can be done in layers. For removing excess render, the plasterer may use a "straightedge" (or screed). The plasterer will then score the surface with either a float, or a smooth and wooden tool.