Plastering vs. Skimming

Attribute	Plastering	Skimming
Definition	The process of applying a layer of plaster to walls or ceilings.	The process of applying a thin layer of finishing plaster to walls or ceilings.
Purpose	To create a smooth and even surface for further decoration or painting.	To provide a final smooth and polished surface for painting or wallpapering.
Thickness	Can vary depending on the desired finish, typically thicker than skimming.	Very thin layer, usually around 2-3mm.
Application	Applied to new walls, damaged surfaces, or as part of renovation work.	Applied to already plastered walls or surfaces that are in good condition.
Preparation	Requires more preparation, including applying a basecoat and ensuring a solid substrate.	Requires less preparation as it is applied to an already prepared surface.
Time	Takes longer to complete compared to skimming due to the additional steps involved.	Quicker to complete as it involves a thinner layer and fewer steps.
Finish	Can have a textured or smooth finish depending on the technique used.	Provides a smooth and polished finish, ready for painting or wallpapering.
Cost	Generally more expensive due to the additional materials and labor involved.	Usually less expensive as it requires fewer materials and less labor.

Introduction

When it comes to finishing interior walls, two popular techniques are plastering and skimming. Both methods involve applying a layer of material to create a smooth and even surface, but there are some key differences between the two. In this article, we will explore the attributes of plastering and skimming, highlighting their unique characteristics and benefits.

Plastering

Plastering is a traditional technique that has been used for centuries to create a durable and decorative finish on walls and ceilings. It involves applying multiple layers of plaster to achieve a smooth and solid surface. Plaster is a mixture of gypsum, sand, and water, which is then spread onto the wall using a trowel.

One of the main advantages of plastering is its strength and durability. Plaster is a robust material that can withstand impact and is less prone to cracking compared to other wall finishes. It also provides excellent soundproofing and insulation properties, making it ideal for rooms where noise reduction is important.

Another benefit of plastering is its versatility. It can be used on various surfaces, including brick, concrete, and plasterboard. Plastering allows for intricate designs and decorative finishes, such as cornices, moldings, and textured patterns. This makes it a popular choice for homeowners who want to add a touch of elegance and character to their interiors.

However, plastering requires a high level of skill and expertise. It is a labor-intensive process that involves preparing the surface, mixing the plaster, and applying it in multiple coats. The drying time between each layer can also be time-consuming, extending the overall project duration. Additionally, plastering can be messy, with the need for proper protection and cleanup.

Skimming

Skimming, also known as skim coating or resurfacing, is a more modern technique that involves applying a thin layer of finishing plaster or joint compound to achieve a smooth and flawless surface. Unlike plastering, skimming is typically used to improve the appearance of existing walls or ceilings rather than creating a new surface from scratch.

One of the main advantages of skimming is its speed and efficiency. Skim coating requires fewer layers compared to plastering, reducing the overall project time. The thin layer of skimmed material can quickly cover imperfections, such as small cracks, dents, or uneven surfaces, resulting in a fresh and uniform look.

Skimming is also a cost-effective option. Since it requires less material and labor, it can be a more budget-friendly choice for homeowners looking to refresh their interiors. Additionally, skimming can be done on various surfaces, including painted walls, plasterboard, and even wallpaper, making it a versatile solution for different renovation projects.

However, skimming has its limitations. It is not suitable for heavily damaged or structurally compromised walls, as it does not provide the same level of strength and stability as plastering. Skimming is primarily a cosmetic solution, focusing on improving the appearance rather than reinforcing the structure. It is important to assess the condition of the walls before deciding whether skimming is the right option.

Comparison

Now that we have explored the attributes of plastering and skimming, let's compare them side by side:

Application Process

• Plastering involves applying multiple layers of plaster using a trowel.
• Skimming requires a thin layer of finishing plaster or joint compound to be applied.

Strength and Durability

• Plastering provides a robust and durable finish, less prone to cracking.
• Skimming is primarily a cosmetic solution and does not offer the same level of strength and stability as plastering.

Versatility

• Plastering can be used on various surfaces and allows for intricate designs and decorative finishes.
• Skimming can be done on different surfaces, including painted walls, plasterboard, and wallpaper.

Time and Efficiency

• Plastering is a labor-intensive process that requires multiple coats and drying time between each layer, extending the project duration.
• Skimming requires fewer layers and is generally faster, making it a more time-efficient option.

Cost

• Plastering can be more expensive due to the additional materials and labor involved.
• Skimming is a cost-effective option, requiring less material and labor.

Conclusion

Both plastering and skimming have their unique attributes and benefits. Plastering offers strength, durability, and versatility, making it suitable for creating decorative finishes and adding character to interiors. On the other hand, skimming provides a quick and cost-effective solution for improving the appearance of existing walls or ceilings, although it may not offer the same level of strength and stability as plastering.

Ultimately, the choice between plastering and skimming depends on the specific requirements of the project, the condition of the walls, and the desired outcome. It is advisable to consult with a professional contractor or plasterer to assess the best approach for your particular needs. Whether you opt for plastering or skimming, both techniques can transform your interior spaces and create a smooth and beautiful finish.