The Ontario Building Code | Mixes
9.28.5.1. Mixes
(1) stucco mixes shall conform to Table 9.28.5.1.
Table 9.28.5.1.
stucco Mixes
Forming Part of Sentence 9.28.5.1.(1)
| Item | Column 1 | Column 2 | Column 3 | Column 4 | |
|
| Materials, volume |
|
|
| |
|
| Portland cement | masonry Cement | Lime | Aggregate | |
| 1. | 1 | — | 0.25 to 1 | 3.25 to 4 parts per part of cementitious material | |
| 2. | 1 | 1 | — |
| |
In Plain Language
Stucco mixes must meet the proportioning requirements set out in this article, balancing workability, strength, and crack resistance.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.