Home / Natural exterior plasters

Natural exterior plasters made with lime

Plasters for facades and masonry, for restoring historic buildings and for those who build naturally: lime, selected aggregates and artisan craft.

Exterior lime finishes

Plasters and finishes for facades, stone walls and historic masonry, made with natural lime. They protect against rain while letting the wall breathe, which makes them the most compatible choice for restoring old buildings and for natural building.

The range includes base coats, finishes and restoration products, with colours obtained from natural aggregates and approved on samples.

Restored historic facade with natural lime-based plaster
Restored historic facade
Building with natural lime-plastered elevations, pale stone frames and a palm tree in the courtyard
Exterior lime finishes

Why lime outdoors

Where they are used

Exterior lime plasters are used on the facades of historic buildings, on stone walls and mixed masonry, on new buildings built to natural building criteria and in restoration work on walls damaged by damp.

They are chosen by construction companies, restorers and architects looking for a finish consistent with the setting: in historic centres, country houses, villages and villas.

The right colour for the building

The colour of an elevation changes with the light, the substrate and the surroundings. That is why shades are chosen on samples viewed on site, in the context of the building, before work begins. Natural aggregates and earths give warm nuances and tonal variations that a uniform paint cannot reproduce.

How we work

Prima Materia distributes Guglielmino's natural lime-based mortars and supports construction companies, architects and craftspeople with technical advice, even remotely: choice of product, plastering cycle and colour.

Frequently asked questions

Is lime plaster suitable for stone walls?

Yes: lime and historic masonry work together and the plaster follows the movements of the substrate.

Why is breathability important outdoors?

Because it lets water vapour leave the wall, reducing the risk of detachment and stains.

How do I choose the colour?

It is assessed on samples in the context of the building, with shades obtained from natural aggregates and earths.

Can it be used to restore historic or listed buildings?

It is the most compatible choice for old masonry. For listed buildings the final guidance depends on the heritage authority: we provide technical support on the materials.

Where we work

We work with construction companies, architects and craftspeople in Piacenza, home of our showroom, and across Northern Italy. We supply the materials and the technical support, even remotely.

Want to see the colours or request a sample?

Tell us about your project: we'll reply with guidance for your surface.