New Process for Covering Pebbledash

Pebbledash has long been a staple of British homes, known for its rugged durability and distinctive appearance. However, as tastes and architectural styles evolve, many homeowners seek ways to update or cover their pebbledash exteriors. Pebbledash is generally thought of as a fairly ugly solution for facades. Traditionally, the process of covering pebbledash involved using an OCDC (One Coat Dash Cover) system, but with the discontinuation of OCDC, a new method has emerged. This new process for covering pebbledash utilises a parge coat of Lightweight Basecoat, offering a modern solution to an age-old problem.

What was the old process for covering pebbledash?

Before diving into the new process, it’s essential to understand how the traditional method worked. The old process involved the following steps:

1. Preparation: The surface was cleaned, and any loose or damaged areas of the pebbledash were repaired.
2. Applying OCDC: A thick One Coat Dash Cover (OCDC) coat was applied directly over the pebbledash. This product was designed to level out the rough texture of the pebbledash, providing a smooth base for subsequent layers.
3. Fibreglass Mesh: While the OCDC was still wet, fibreglass mesh was embedded into the surface to reinforce the coating.
4. Topcoat Application: A decorative topcoat was applied to achieve the desired finish.

The OCDC system was effective but has been phased out, necessitating a new approach. The reason for this phase-out is extensive testing at EWI Pro. As innovators, EWI Pro is always looking to streamline processes and products. Therefore, they tested lightweight basecoat parge coats to see their surface levelling effectiveness.

New process for covering pebbledash

The new method replaces OCDC with a parge coat of Lightweight Basecoat, followed by a layer of Premium Basecoat. This innovative approach offers several advantages, including improved flexibility, reduced weight, and enhanced ease of application. Here’s how the new process works:

Step 1: Surface preparation

As with the traditional method, the first step is to prepare the pebbledash surface. Clean the surface thoroughly, removing any dirt, algae, or loose material. Repair any cracks or damaged areas to ensure a stable base for the new coating.

Step 2: Applying the parge coat

Instead of OCDC, a parge coat of Lightweight Basecoat is applied. This basecoat is designed to be lightweight yet robust, making it ideal for covering pebbledash. The parge coat should be applied evenly over the entire surface, ensuring it fills in the gaps and creates a level finish.

Step 3: Applying the Premium Basecoat and embedding mesh

Once the Lightweight Basecoat has dried, a layer of Premium Basecoat is applied on top. This basecoat provides additional strength and smoothness. While the Premium Basecoat is still wet, embed fibreglass mesh into the surface. This step is crucial as it reinforces the coating, adding strength and preventing cracking. The mesh should be laid smoothly and pressed firmly into the Premium Basecoat.

Step 4: Additional Premium Basecoat layer

After embedding the mesh, apply an additional layer of Premium Basecoat to ensure the mesh is fully covered and to create a solid, smooth surface for the topcoat. You can apply Premium Basecoat in one thicker layer and embed the fibreglass mesh into it rather than covering it. The basecoat layer can then be primed with Topcoat Primer to aid the adhesion of a topcoat like Silicone Render.

Step 5: Applying the topcoat

The final step is to apply the decorative topcoat. Depending on the desired finish and performance characteristics, various options are available, including silicone, acrylic, or mineral-based topcoats. The topcoat should be applied following the manufacturer’s instructions to achieve a uniform, aesthetically pleasing result.

Can you remove pebbledash completely?

Due to its application, removing pebbledash can be challenging. The stones are firmly embedded in a mortar base that adheres strongly to the underlying wall surface. Before starting the removal process, it's crucial to assess the condition of the wall underneath the pebbledash. Sometimes, pebbledash was applied to cover up poor-quality brickwork or other structural issues. Removing the pebbledash might reveal these underlying problems, which must be addressed. Removing pebbledash is messy and dusty, so it's essential to take protective measures. Cover windows, doors, and any other surfaces that need to be protected. Wear protective clothing, goggles, and a mask to safeguard against dust and debris.

Removing the pebbledash

There are a few methods for removing pebbledash:

1. Manual Chipping: Involves using a hammer and chisel to chip away at the pebbledash. It is a labour-intensive process and requires a lot of time and effort. Care must be taken to avoid damaging the underlying brickwork.
2. Mechanical Tools: Power tools like a rotary hammer or an electric chisel can speed up the process. These tools can effectively break the mortar holding the pebbledash in place, but they also require skill to avoid damaging the wall.
3. Chemical Strippers: In some cases, chemical strippers can be applied to soften the mortar, making it easier to remove the pebbledash. This method can be effective but might not be suitable for all types of mortar and can be hazardous if not used properly.

Benefits of completely removing pebbledash

One of the most significant advantages of removing pebbledash is the improved appearance it brings to your home. With its rough texture and dated look, Pebbledash can make a house seem older and less maintained. By removing it, you can reveal the natural beauty of the underlying brickwork or create a fresh, modern finish with a new render or cladding. This transformation can greatly enhance the curb appeal of your property, making it more attractive to both you and potential buyers. Additionally, removing pebbledash provides an excellent opportunity for structural inspection and repair. The process of chipping away the pebbledash often exposes the original wall, allowing you to identify and address any hidden issues such as cracks, damp spots, or weakened mortar. This proactive approach not only improves the integrity of your home but also prevents minor problems from developing into major structural concerns, ensuring your property's long-term stability and safety. Furthermore, updating the exterior by removing pebbledash can significantly increase the market value of your home. Presenting a modern and attractive facade can make your home more appealing in the competitive real estate market. This enhanced visual appeal and the assurance of a structurally sound property can lead to higher offers and a quicker sale when you decide to put your home on the market. Removing pebbledash can significantly improve the aesthetic appeal of your home. It provides an opportunity to inspect and repair the underlying structure, potentially increasing the market value of your home. However, the process can be expensive, especially if professional help is required. It is also a time-consuming and physically demanding task with the risk of damaging the underlying brickwork during removal.