Render & stucco
The standard 1:1:6 exterior undercoat — good workability, breathable, and softer than the coat beneath it. Lime improves cohesion and reduces cracking.
| Designation | Undercoat |
|---|---|
| Ratio (by volume) | 1 : 1 : 6 |
| Cement | 1 part |
| Lime | 1 part |
| Sand | 6 parts |
| Typical use | Levelling undercoat on masonry walls. |
The standard 1:1:6 exterior undercoat — good workability, breathable, and softer than the coat beneath it. Lime improves cohesion and reduces cracking.
Render is built up in coats, each one weaker than the coat beneath it. That way shrinkage stresses stay in the outer layer instead of pulling the render off the wall.
Need quantities? The volume calculators give the cubic yards, cubic metres and bag counts for the pour this mix goes into.
Applications
Same family