What is the Difference Between Rendering and Plastering?

The main difference between rendering and plastering lies in their composition and purpose. Both processes involve applying a mixture of cement, sand, water, and sometimes lime to walls, but they are used for different purposes and require different mixtures.

Rendering is the process of coating exterior surfaces of buildings, while plastering is the process of coating interior walls and ceilings. The differences between rendering and plastering include:

• Composition: Rendering has a heavier composition compared to plaster, containing more cement and coarse sand. Plaster, on the other hand, uses finer sand for a smoother finish.
• Purpose: Rendering is used to enhance the appearance and texture of external surfaces, change the color of external walls, repair cracks, increase the value of a property, and add an extra layer of insulation. Plastering is done before painting to provide a smooth surface for an even paint finish.
• Strength: Rendering is made to be more durable and weather-resistant, as it is applied to the outside of buildings. Plastering is less strong but provides a smoother finish, making it suitable for interior surfaces.

In summary, rendering is used for coating exterior walls with a heavier, more durable mixture, while plastering is used for coating interior walls and ceilings with a finer, smoother mixture.

Comparative Table: Rendering vs Plastering

Here is a table comparing the differences between rendering and plastering:

Rendering and plastering are both used for covering walls, but they serve different purposes and have different compositions. Rendering is applied to exterior surfaces to protect them from the elements, while plastering is used on interior walls and ceilings for a smooth surface and insulation.