Heritage Finish is a wet, ready-mixed non-hydraulic lime putty mortar formulated for pointing, general building work, and fine finish render coats. Supplied in buff, this highly versatile product is ideal for heritage repairs, conservation projects, and traditional lime finishes.
Manufactured with premium matured lime putty (aged in pits on-site for a minimum of four months) and natural sands, this finely graded mortar offers high breathability, flexibility, and exceptional workability. Its fatty composition and high free lime content make it more porous and vapour-open than hydraulic lime mortars, making it especially well-suited to traditional masonry and moisture-sensitive substrates.
Key Features
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✅ Multipurpose Use: Ideal for pointing, building, or fine float coat rendering
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✅ Fine Finish Texture: Popular as a topcoat render with a float finish over Roundtower Insulating Plaster and Roundtower SuperTherm.
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✅ Made with 4-Month Matured Lime Putty: Naturally carbonating and breathable
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✅ High Vapour Permeability: Supports moisture evaporation from masonry
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✅ No Pigments: Naturally coloured—no risk of artificial fading over time
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✅ Easy to Knock Up & Use: Fatty texture offers exceptional workability behind the trowel
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✅ Suitable for Internal & External Use: Where background strength allows
Applications
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General Building & Pointing: Particularly suited to narrow joints (<10mm) in stone or brickwork
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Fine Render Coat: Can be used as a topcoat over compatible undercoats, using float or sponge finishes
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Traditional & Conservation Projects: Provides the appearance and performance of heritage lime mortars
✔️ Always ensure substrate is properly prepared and suitable for non-hydraulic lime. Avoid use in damp or frost-prone conditions without proper protection.
Coverage & Pack Info
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Pack Size: 20kg tub
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Coverage: Approx. 3m² at 3mm thickness
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Coverage will vary based on background condition, suction, and application method. On-site testing is recommended to determine accurate yield.
Heritage Finish offers a traditional look and breathable performance in a convenient ready-to-use format—ideal for both craftsmen and conservation professionals looking for authentic lime work with modern ease.
