Fixing Uneven Rockstone Wall Plastering Singapore
Plastering is an essential step in achieving smooth, even walls and ceilings, and it significantly contributes to the aesthetic appeal of any space. In Singapore, especially many older buildings, often encounter issues related to rockstone walls and ceiling. These problems not only affect the visual quality of the surface but also weaken the structural integrity of the walls. The rockstone texture is once very popular in the oldest day may not be accepted by current homeowner.
Whether you’re dealing with an aging HDB flat or old condominium, understanding the types of walls and ceilings prevalent in Singapore and how to fix plastering issues is key to maintaining your property.
Common Types of Walls and Ceilings in Singapore
Singapore’s construction history reflects a mixture of styles and materials that have evolved over the decades. Here are the most common types of walls and ceilings in the city-state:
- Rockstone Plastered Walls or Ceiling
Rockstone, also known as textured plaster, is a common decorative finish in Singapore. This method uses a mixture of cement and fine aggregate to create a rough, textured surface that adds visual interest to walls and ceilings. However, uneven application or degradation over time can lead to an unappealing finish that requires re-plastering. Any post renovation, drilling and damaged will make the surface become patchy and uneven.
Causes of Poor Rockstone Wall Plastering
Uneven plastering, especially on rockstone walls, is a common issue that homeowners and property managers encounter. Understanding the root causes is essential for determining the appropriate repair method. Some of the primary causes include:
- Poor Workmanship: Plastering requires skill and precision. Inexperienced contractors or improper application techniques can lead to uneven surfaces, bumps, or ridges.
- Natural Wear and Tear: Over time, walls expand and contract due to temperature changes and humidity, leading to cracks or unevenness in plaster finishes.
- Water Damage: Leaks from pipes or moisture seeping through walls can cause plaster to bubble or peel, resulting in an uneven finish.
- Substrate Movement: Structural shifts, such as foundation settling, can cause cracks or distortions in the wall surface, affecting the evenness of the plaster.
- Post renovation damaged : Due to any activity for the wall such as drilling, glue removal on the surface etc.
Spot Repair Method for Uneven Plastering
Spot repairs are an effective way to fix localized areas of unevenness without redoing the entire wall. This method is ideal for small cracks, dents, or patches where the rockstone texture has deteriorated. Below is a step-by-step guide on how to perform spot repairs for uneven plastering.
Step-by-Step Guide for Spot Repairs:
- Identify Problem Areas
Begin by inspecting the wall for any obvious signs of unevenness, such as cracks, bubbles, or ridges. Mark the areas that need attention. - Clean the Surface
Before applying new plaster, it’s essential to clean the surface. Remove any loose plaster, dirt, or debris using a scraper or wire brush. If the area has been affected by water damage, ensure the wall is completely dry before proceeding. - Apply Filler or Patch Compound
For small cracks or dents, use a high-quality filler or patch compound to even out the surface. Spread the compound evenly over the affected area using a trowel. For rockstone-textured walls, you may need a specialty compound that mimics the original texture. - Smooth the Surface
Once the filler is applied, smooth the surface using a putty knife or float. Be sure to feather the edges of the patch to blend it seamlessly with the surrounding wall. - Spray texture machine
Use the correct filler and spray nozzle to achieve the texture. However, different size may not able to achieve correct texture compare with the existing. You may need to accept some variation. - Prime and Paint
After dry, apply a primer to the repaired area to ensure a consistent finish when painting. Once the primer is dry, apply matching paint or texture to complete the repair.
Total Plastering Method in Singapore
When a wall or ceiling has extensive unevenness or damage, spot repairs may not be good solution. In such cases, a total plastering job is required to restore the wall to a smooth, even finish. This process involves removing old plaster, applying new layers, and ensuring a flawless surface. Below is a guide to the total plastering method for rockstone or any uneven wall surface in Singapore.
Step-by-Step Guide for Total Plastering:
- Prepare the Wall
Start by preparing the surface. Remove any existing plaster that is loose or damaged. This may involve chiseling away at old plaster or sanding down rough areas to ensure a clean slate for new plastering. - Apply a Base Coat
For rockstone walls, a base coat of cement-based plaster is typically applied first. This helps create a smooth and even foundation for the final layer. Using a trowel, spread the base coat evenly across the entire surface. Be sure to press the plaster firmly into any cracks or imperfections to ensure a strong bond. - Apply the Putty Plaster
Once the base coat has dried, apply the putty plaster layer by layer. This layer should be applied evenly to achieve a consistent finish. Thickness is between 3-5 mm. If the wall is slopping and require to plaster more than 20 mm thk, Putty plaster method may not be suitable and should consider to use conventional cement plaster method. - Allow to Dry
Plaster requires adequate drying time. Ensure the room has proper ventilation to facilitate the drying process. Depending on the thickness of the plaster and humidity levels, drying can take anywhere from 24 to 48 hours. - Prime and Paint
After the plaster is fully dry, apply a primer to the surface. This will help the paint adhere properly and provide a uniform finish. Once primed, paint the wall with your desired color
Grinding off Rockstone Plaster
Some homeowner may wonder, should I consider to remove the rockstone plaster and apply with new wall putty to achieve smooth finishes ? Yes, if you have a better budget, it is good to have use mechanical tools to grinding or hack off the rockstone finishes and reapply wall putty to achieve the result. The cost may be double or triple and more time needed for the work and not mention the amount of dust need to be generated.
Conclusion
Plastering uneven rockstone walls and ceilings requires a good understanding of the materials and techniques involved. Whether you’re dealing with a small spot repair or need a complete plastering overhaul, it’s important to approach the project with care. In Singapore, where wall types range from concrete to drywall and rockstone, applying the right method can help restore your walls to their original beauty and ensure long-lasting durability.
For homeowners looking to address uneven plastering issues, hiring a professional contractor experienced in plastering Singapore’s unique wall types is essential. With the right approach, you can achieve a flawless, even finish that enhances the aesthetics and structural integrity of your home.
If you need contractor to help to repair or make a smooth wall over your existing rockstone spray texture finish? We welcome all enquiry from Singapore homeowner.
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