Lime plastering is a traditional method of wall finishing that has been around for centuries, but over time, many misconceptions have arisen about its use and benefits. While lime plaster is incredibly durable, eco-friendly, and beautiful, it’s often misunderstood. In this blog, we’re going to tackle some of the most common myths about lime plastering and set the record straight.
Myth #1: Lime Plaster Is Too Fragile
One of the most common myths about lime plaster is that it’s fragile and prone to cracking easily. In reality, lime plaster is actually incredibly durable when applied correctly. It’s made from natural materials like limestone, sand, and water, and it has a flexibility that modern cement-based plasters just can’t match.
Lime plaster is able to move with the building as it settles and shifts, which is why it’s often the preferred choice for older or heritage buildings. Unlike modern plasters that can crack when the building moves, lime plaster is designed to expand and contract without losing its integrity. With the right application and maintenance, lime plaster can last for hundreds of years.
Myth #2: Lime Plaster Takes Forever to Dry
Another misconception is that lime plaster takes an incredibly long time to dry. While it’s true that lime plaster requires more time to cure compared to modern plasters, it doesn’t mean the process is impractically slow.
Lime plaster dries through a natural chemical reaction known as carbonation, where the lime absorbs carbon dioxide from the air and hardens. This process is slower than drying with modern plasters, but that’s actually a benefit. A slower curing time means the plaster has time to properly bond with the surface, leading to a stronger and more durable finish.
In many cases, lime plaster can be fully set within a few days to a week, depending on the thickness of the coats and the temperature and humidity of the room. While it may take a little longer to fully cure compared to synthetic materials, the end result is a wall that’s built to last.
Myth #3: Lime Plaster Is Only for Historic or Traditional Homes
Many people believe that lime plaster is only suited for historic or heritage buildings. While it’s true that lime plaster has been used for centuries in older buildings, it’s also a fantastic choice for modern homes.
Lime plaster offers unique benefits like breathability, which helps to regulate indoor humidity levels and prevent damp and mold issues—something that benefits both old and new homes. It’s also highly eco-friendly, making it perfect for those looking to create a sustainable, healthy living environment. So, whether you live in a charming cottage, a sleek modern home, or a heritage property, lime plaster can enhance your space in a way that no modern plaster can.
Myth #4: Lime Plaster Is Expensive and Only for High-End Projects
Some people assume that lime plaster is an expensive luxury reserved for grand projects, but this couldn’t be further from the truth. While it may seem like lime plaster is pricier upfront, it can actually save you money in the long run due to its durability and sustainability.
Lime plaster is a natural material that doesn’t require the use of toxic chemicals or synthetic additives. It’s also much more energy-efficient than many modern materials, thanks to its natural insulation properties. Over time, you may even find that it helps lower your heating costs as it keeps your home warmer in the winter and cooler in the summer.
Furthermore, when applied correctly, lime plaster can last for decades, reducing the need for repairs or replacements that often come with cheaper, less durable materials.
Myth #5: Lime Plaster Is Difficult to Apply and Requires Specialized Skills
While lime plastering does require more expertise than modern plasters, it’s not as difficult as some make it out to be. Yes, lime plastering does have a learning curve, but with the right knowledge and technique, anyone can achieve a beautiful result.
The key is to understand the three-coat system: bonding, float, and finishing coats. This system ensures that the plaster adheres correctly, has the right texture, and results in a smooth, long-lasting finish. It’s not something that just anyone can do on a whim, but it’s far from rocket science!
Hiring an experienced plasterer ensures that the application is done right, but that doesn’t mean the process is overly complicated or impossible for skilled hands. With proper training, lime plastering can be done by anyone who’s willing to take the time to learn the craft.
Myth #6: Lime Plaster Requires Constant Maintenance
Some people believe that lime plaster needs constant attention and maintenance to keep it looking good. While lime plaster does require care, it’s not any more high-maintenance than modern plasters—just different.
Unlike modern materials, which can trap moisture and lead to mold and mildew growth, lime plaster naturally allows the walls to breathe. This helps to maintain a healthier indoor environment. If your lime plaster gets damaged, repairs can usually be made quite easily by applying a fresh coat of plaster, without the need for replacing large sections of wall.
In fact, lime plaster is incredibly low-maintenance compared to many other wall finishes. Its ability to self-heal minor cracks is one of its standout features, reducing the need for frequent repairs.
Myth #7: Lime Plaster Has a Rough, Unattractive Finish
Some people might think that lime plaster always results in a rough, rustic finish, but this is far from true. Lime plaster can actually be applied in a variety of textures and finishes—from smooth and polished to a more traditional, textured look.
The beauty of lime plaster lies in its versatility. Whether you prefer a sleek, modern finish or a rustic, textured feel, lime plaster can be tailored to suit your design vision. With the right technique, it can achieve a highly polished, smooth look that rivals the most luxurious modern wall finishes.
Myth #8: Lime Plaster Is Too Expensive for DIY Projects
Many homeowners are put off by the idea of using lime plaster because they believe it’s too expensive for a DIY project. While it’s true that lime plaster might cost a bit more than some conventional wall finishes, the cost difference isn’t as significant as some believe—especially when you consider its longevity and durability.
Moreover, lime plastering isn’t a DIY job for everyone. It requires specific tools, preparation, and techniques to get the perfect finish. If you’re up for the challenge, however, there are plenty of tutorials and guides to help you learn the ropes. But, if you’re looking for a flawless finish, it’s best to leave it to the professionals.
Conclusion: Don’t Let Myths Hold You Back
Lime plastering is a time-tested, eco-friendly, and beautiful wall finish that’s been used for centuries—and for good reason! It has numerous benefits, from regulating humidity to creating stunning, long-lasting surfaces.
By debunking these common myths, we hope you feel more confident about the possibilities of lime plastering in your home. Whether you're restoring a heritage building or looking to bring a bit of natural beauty into a modern space, lime plaster is a versatile and sustainable option that deserves a closer look.