What is limecrete?
Limecrete isn’t too dissimilar to a concrete screed other than the fact that lime is used as the binder instead of cement. So, a coarse sand/aggregate mixed with lime (usually an NHL5), with reinforcing fibres make up limecrete.
What is a limecrete floor?
A limecrete floor consists of two separate layers similar to a modern concrete floor. The first layer being a layer of Glapor insulation, of a depth approximately 150mm, and the second layer being the limecrete slab itself. A key difference in the floor build up is that it does not contain any plastic membranes are materials, which leaves the entire system vapour permeable (breathable). This reduces the likelihood of ground penetrating damp as there is no trapped moisture beneath the slab.
What does a limecrete floor cost per m2?
Whilst its possible to establish a cost with regards to the materials and labour per m2, the entirety of the project is what has the greatest effect on the cost. For instance: the cost of a limecrete floor installation as a ballpark figure may be £130 per m2, for installation of the slab, inc labour and materials. However, this is likely to be based on a number of assumptions: perfect and easy access, adequate site access for water and electricity, good ground conditions for wheelbarrow access etc etc.
A key factor that will increase this cost is the excavation of the current concrete floor and whether underfloor heating is to be incorporated within the slab.
What are the benefits of a limecrete floor?
- Lime is a natural and renewable resource with a lower carbon footprint compared to cement. Choosing limecrete supports sustainable building practices and reduces environmental impact.
- Limecrete floors allow moisture to evaporate naturally, reducing the risk of dampness and mold growth. This is especially important in historic buildings with stone or brick foundations that need to breathe
- They are robust and long-lasting, offering excellent performance in both residential and commercial settings. It’s ideal as part of the renovation of a historic buildings, or part of an eco-build and Passive House.
Why use a limecrete company?
Installing a solid floor is about as crucial as it gets in construction, and whilst it may not be a structural component, getting it wrong can be a huge expense to rectify!
We are more than happy to discuss works and provide adequate training to your builder should that be preferred.
Is limecrete compatible with underfloor heating?
Yes, absolutely! The underfloor heating pipes sit directly ontop of the insulation with the screed being laid directly on top.