Lime mortar, by definition, is made of lime, sand and water, the traditional cement is replaced by lime. This gives the mortar bioclimatic capacity, which means to say, it lets the wall breathe because it has high vapour permeability and it is still waterproof.
Compared to the classic cement-based mortars, the lime mortar shrinks and cracks less and it is not as stiff. Technically speaking, according to the Spanish Building Code Standard CTE HS1, it provides protection against humidity; according to the Building Code Standard HS3, it favours the quality of interior air; and according to the Building Code Standard HR, it provides sound insulation. The two latter properties are the most interesting about this type of mortar; because it means that it absorbs smells and noise quite well, thus enhancing the comfort of a room.
Using lime mortars is associated with bioconstruction and the rehabilitation of buildings.
When it comes to applying it on surfaces, this can be done the same way as traditional plastering.
At Materiales Cano, you can find the one that adapts to your building needs the best.