Cost considerations when using lime products
Application and process
Lime-based materials cost more than modern cement products and require a different approach to application. Work is carried out in multiple thin coats, with longer curing times between stages.
This affects programme length and labour input rather than complexity. The process prioritises control and compatibility over speed.
Material composition
Lime products differ materially from cement. They are mixed with a higher proportion of lime relative to aggregate and are handled differently on site.
This affects both the cost of the materials themselves and the way they are applied and finished.
Suitability and specification
Lime is used where it is appropriate to the construction of the building rather than as a general alternative to cement.
Specification is based on the age, materials and behaviour of the structure, not on preference or appearance.