D.E.H PLASTERING
plasterer in Clifton. plasterer in Bristol. plasterer in Bedminster, plasterer in Weston super mare. plasterer in Weston.

Lime renders have been used in construction for centuries, valued for their unique properties that make them ideal for both internal and external plastering. Unlike modern cement-based plasters, lime renders are particularly well-suited to older buildings, offering a range of benefits that contribute to the longevity and health of the building fabric.

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Benefits of Using Lime Renders

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One of the primary advantages of lime renders is their breathability. Lime renders allow water vapour to escape, crucial in reducing dampness and preventing moisture-related issues within walls. This breathability helps maintain a healthy environment within the building by allowing moisture to pass through the render, rather than becoming trapped, which can lead to problems like mold or structure deterioration.

Lime is also more flexible than cement, making it better equipped to handle the natural movements of a building. This flexibility reduces the likelihood of cracking, which is a common issue with more rigid cement-based plasters. Even if minor cracks do occur, the self-healing properties of lime render, due to the presence of ‘free lime,’ allow it to repair itself over time, sealing small cracks naturally as it reabsorbs carbon dioxide from the air.

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Hydraulic vs. Non-Hydraulic Lime

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When choosing lime for rendering, it's important to understand the differences between hydraulic and non-hydraulic lime. Hydraulic lime sets through a chemical reaction with water, which means it can set in damp conditions and is more resistant to water once cured. This makes it suitable for external applications where exposure to the elements is a concern.

On the other hand, non-hydraulic lime sets by absorbing carbon dioxide from the atmosphere, a process that can take longer but results in a highly breathable and flexible finish. Non-hydraulic lime is ideal for internal plastering or for use in areas where a slower, more natural set is advantageous.

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Enhancing Heritage and Aesthetic Value

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For buildings constructed before 1919, which typically feature solid walls without cavities, lime renders offer a natural solution to moisture management. These older structures benefit from the ability of lime to breathe—absorbing moisture when necessary and releasing it back into the environment, thereby preventing the build-up of damp that can damage the building over time.

In addition to their functional benefits, lime renders contribute to the aesthetic appeal of a property. They have a warm, natural appearance that complements the character of historic buildings. Lime renders can be finished with lime washes or clay paints in a variety of colours, or dyed directly to create a low-maintenance, durable finish that enhances the beauty of your home.

For those seeking to preserve the integrity and beauty of their property, lime renders provide a versatile and sustainable option, ensuring that your building remains both functional and visually appealing for years to come.

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If you have any questions or need advice on choosing the right lime render for your project, feel free to contact us. We're here to help.