Handbook on Restoring Traditional Lime Mortars
This handbook documents a methodology for renovating interior plastering systems on stone masonry using low-impact lime- and clay-based materials enhanced with vegetable fibers. In this regard, it illustrates how a plastering system with enhanced thermal properties can be employed to modestly enhance the energy efficiency of a historic structure without compromising its architectural features. These interventions rely on local, natural materials and techniques based on traditional knowledge and the principles of reuse and recycling.
The research and implementation of the works was part of the project KERETSI.
The creation of the handbook was supported by the INTBAU Grassroots Grants Programme.
See also...
- Documentation, Educational material
This Notebook of Works is a documentation of the works and the results of the dual educational programme “Keretsi | Apprenticeship and Workshop on Mortars for Traditional and Sustainable Building Practices” which was implemented at the beginning of October until November 2025 in Frasta, Tzoumerka, Greece, at the School for Research and Education on Traditional and Sustainable Building, where Boulouki is based.
The document is available in Greek.
- Educational material
This gallery of models reveals the potential contained in the alliance between heritage preservation and social inclusion. Hopefully it may inspire any organisation or public authority wishing to engage with this kind of initiative and contribute to the development of a sustainable and inclusive heritage restoration.
The H.E.R.O project was implemented under the Erasmus+ programme and was completed after 3 years (2021-2024) of transnational cooperation between 4 actors Acta Vista (France) leading partner, Bao Formation (France), Pour la Solidarite (Belgium), 4Grada Dragodid (Croatia), Boulouki (Greece).
The file is available in English and French.
