Can You Use Building Sand with Lime?

Sands are mostly responsible for the void structure of lime mortars and, therefore, for its vapour permeability, so vital for the performance against accumulation of condensation. It is for this reason that well graded sands are recommended.

What kind of sand do you mix with lime?

The aggregates most commonly used with hydraulic lime are sand and grit, although for the purpose of matching historic mortars various impurities may have to be added. A good sand should be a washed sharp sand with angular grains to ensure good bonding qualities.

Can you use building sand in lime mortar?

Q. What sands should be used? For lime putty mortars, the sand used for building, pointing and backing coats of render and plaster should be a washed sharp coarse sand.