Plastering, rendering, and screeding all aim to create a smooth, level surface for various finishes like paint, wallpaper, tiles, carpet, and marble. However, their application locations and material compositions differ.
- Plastering is applied to the interior surfaces of concrete or block walls, acting as an intermediate layer between the wall and the final finish.
- Rendering is specifically for exterior walls, providing protection from the elements and a base for decorative finishes.
- Screeding is applied to floors, creating a smooth, level base for various floor coverings.
Due to the varying environmental conditions and performance requirements, the materials used for plaster and render differ. For instance:
Cement Plaster:
- Undercoat: 1 part cement : 4 parts lime : 16 parts sand (by volume)
- Finishing coat: 1 part cement : 12 parts lime : 30 parts sand (by volume)
Cement Render:
- Undercoat: 1 part cement : 2 parts lime : 6 parts sand (by volume)
- Finishing coat: 1 part cement : 3 parts lime : 6 parts sand (by volume)
These proportions ensure the appropriate strength, durability, and weather resistance for each application. The higher cement content in render, for example, provides greater resilience against external factors like rain and temperature fluctuations.
admin Changed status to publish July 30, 2024