Why Use Lime?
Lime has been used as a plastering material for centuries due to its excellent properties. Here are some reasons why lime is used for plastering:
Breathability
Lime plaster is highly breathable, allowing moisture to evaporate and pass through the material. This characteristic is especially beneficial in older buildings or structures with limited or no damp-proofing measures. It helps to prevent moisture build-up, condensation, and subsequent damage to the underlying materials.
Thermal Performance
Lime plaster has good thermal properties, helping to regulate temperature and moisture within a building. It can act as a natural insulator, reducing heat loss and improving energy efficiency.
Eco-Friendly and Sustainable
Lime mortar is more environmentally friendly than cement-based mortars. The production of lime mortar requires lower energy inputs and generates fewer greenhouse gas emissions. Additionally, lime mortar can be recycled and reused more easily than cement-based materials.
Durability
When applied correctly, lime plaster can last for generations. Its resistance to weathering and ability to accommodate natural building movement make it far more resilient over time than many modern alternatives.
Flexibility
Lime plaster is more flexible than cement plaster, which makes it ideal for use on walls that are prone to movement. This flexibility helps to prevent cracking and ensures that the plaster stays intact for longer.
Self-healing
Lime plaster has the ability to self-heal minor cracks that may appear over time. This means that the plaster can repair itself and maintain its integrity for longer periods of time.
Historic Authenticity
Lime has been the material of choice for historic buildings for centuries. It is the only appropriate material for restoration and conservation work where historical accuracy and breathability are essential. Using lime helps preserve the heritage and character of traditional properties.
Aesthetics
Lime plaster has a unique, natural appearance. It is also available in a wide range of colours, textures, and finishes, making it a versatile choice for a variety of applications.
*Important Information About Lime Work
Lime plastering and rendering is a traditional craft that demands time, patience, and skill. It involves multiple hand-applied coats with specific drying periods, and requires careful attention to detail throughout. Lime materials themselves are more expensive than modern alternatives due to their natural sourcing and specialist handling. As a result, both labour and material costs are higher — not because the work is rushed, but because it is done correctly. The outcome is a breathable, flexible, and long-lasting finish that protects the building and maintains its character. Lime is an investment in quality and authenticity, especially valuable for older and heritage properties.