Sonia Luna is an expert in all sorts of works carried out with air lime putty, standing out mainly because of her intervention works on built heritage. She executes from façades to entire bathrooms, but also fresco mural paintings and personalized walls following the client’s… instructions, always using traditional techniques. 

Thus, when carrying out the sgraffito technique, she firstly applies a render with different layers of lime mortar – generally of different colours. On top of the last layer she then traces the drawings she’s going to actually carry out with the aid of stencils. Lastly, she will proceed to remove them carefully with the aid of scalpers. This way, the layer underneath becomes exposed, having generally a slightly different colour. 

When it comes to fresco paintings, she combines the colours with which she wants to paint with lime water, applying them on the surface of a wall with a lime render which is still moist, “fresco”, just how it has traditionally been done. This way the colours are able to penetrate in the lime of the wall, becoming part of it, giving as a result a mural fresco painting of indefinite duration, practically permanent. 

The air lime putty is a natural and ecological material which can be found all around the world. It has been used from the very beginning of architecture and is, today, a must for an ecological and sustainable construction, as has traditional architecture always been. The great plasticity of lime putty makes it a material which can adapt to all shapes and spaces. It is breathable, a good thermal insulator and fireproof. Apart from that, its aesthetic quality harmonizes with stone, ceramics or wood.