Difference Between Plastering & Rendering

There is considerable confusion about the difference between plastering and rendering, with most individuals who don’t belong to the construction industry finding it hard to differentiate between the two. Even though both entail enveloping surfaces, they serve different purposes and are used in different conditions. Comprehending these differences can assist you in determining which service you require for your project, whether you are constructing a new residence, refurbishing, or only requiring some repair job done.

In this comprehensive guide, we will break down the major differences between the two procedures, their compositions, uses, and when to go for each.

What Are Plastering and Rendering?

Plastering and rendering both involve employing a coating over brickwork to create a slick, level surface. Nevertheless, these materials address various purposes and are made using somewhat different formulas. In spite of their similarities, their applications and materials differentiate them.

Plastering refers to the procedure of covering internal walls and ceilings, whereas rendering is used for coating external walls. Understanding this difference is vital to knowing when to use rendering or plastering.

Composition: How Are They Distinct?

The major difference between rendering and plastering lies in their composition. Both of these materials are created from an assortment of the following:

  • Sand
  • Water
  • Sometimes Lime, Gypsum

Nevertheless, render has a far richer composition than plaster.

Render often incorporates additional cement compared to plaster, providing it with a thicker and more solid consistency. This extra strength is fundamental as the render is susceptible to severe atmospheric conditions when used on exterior walls.

Plaster, on the contrary, incorporates less cement and uses finer sand. This provides it with a uniform texture, which is ideal for establishing a shining surface on interior walls.

Moreover, premixed renders might comprise polymers and other specific compounds to enhance longevity and water resistance, guaranteeing long-term protection against the elements.

Purpose of Plastering and Rendering

Both plastering and rendering are vital for improving a building’s visual appeal and integrity. Nevertheless, their uses vary depending on where they are employed.

What is Rendering Used For?

Rendering is used on exterior walls and serves numerous functions such as:

  • It upgrades the look and texture of exterior surfaces
  • It can modify the colour of exterior wall surfaces.
  • It can fix the cracks in exterior walls.
  • It can increase the monetary worth of a property.
  • It can add a secondary insulation layer to walls.
  • It can be used to waterproof and flameproof a property.
  • It can minimise long-term maintenance costs.

Rendering involves applying the mixture as a layer, mostly using a trowel. Once applied, the finishing of render can be done in various ways based on the required texture. Some homeowners opt for a plain finish, whereas others prefer a more textured or patterned appearance.

What is Plastering Used For?

Plastering, on the contrary, is intended for interior walls and ceilings. Its major objective is to develop a smooth, pristine surface inside the residence.

The following factors show the significance plastering holds:

  • Plaster offers a completely smooth surface for interior walls that is perfect for painting or wallpapering.
  • Once plastered, the ramparts are effortless to clean and decorate, upgrading the interior’s aesthetic appeal.
  • Plaster is waterproof and offers an easily washable surface, making it perfect for properties susceptible to taints and dust.

A plaster must be fully dried before it can be painted or decorated, and the process can take from a week to a month, depending on the number of coating layers and the surrounding environmental conditions.

When to Select Rendering or Plastering?

So, how can one get an idea of when to select rendering or plastering for their endeavour? Don’t panic; it’s not a big issue. When you find yourself in such a tricky situation, just keep in mind the following valuable information:

Select Rendering for Exterior Walls: If you are working on a building’s exterior or it is necessary to protect external walls from different external elements, rendering is the ideal choice. It is designed to endure atmospheric conditions, making it excellent for protecting exterior surfaces against the following:

  • Rain
  • Wind
  • Sun

Select Plastering for Internal Walls: Plaster is the best option for interior walls and ceilings. It offers a flawless, neat finish that is suitable for painting or installing wallpapers, helping to develop an appealing and functional living area.

Major Differences Between Rendering and Plastering

The following are the major differences between rendering and plastering:

  • Interior vs. Exterior: Plastering is applied to interior walls and ceilings, while rendering is applied to exterior walls.
  • Smooth Finish vs. Durable Protection: Plastering offers a smooth finish for decoration, while rendering provides a durable, weather-resistant finish.
  • Finer Sand vs. Coarser Sand: Plaster is made with less cement and finer sand, while render is formed of more cement and coarser sand.
  • Aesthetic vs. Structural Stability: Plastering is used for aesthetic and smooth surfaces, while rendering is used for protection and stability.
  • Easy Cleaning vs. Waterproof & Fireproof: Plastering is water-repellent and simple to clean while rendering offers waterproofing and fireproofing.
  • Longer Drying vs. Instant Protection: Plastering requires drying before decoration (1-4 weeks), while rendering dries faster and provides instant protection.

In a Nutshell!

To conclude, both rendering and plastering are vital for upgrading a building’s structure and look, as they serve diverse purposes. Rendering is used for exterior walls to offer protection and stability, while plastering is used for interior walls to create a smooth, neat surface.

If you are still not sure which service you require, our experienced crew at Judge Plastering is available 24/7 to assist you. For professional plastering and rendering, contact Judge Plastering today by dialling 07432 022875!

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