Laying Temperature of Mortar and Masonry

(1)  Mortar and masonry shall be maintained at a temperature not below 5°C during installation and for not less than 48 h after installation.

(2)  No frozen material shall be used in the mortar mix.

Article 9.20.14.1 Ontario Regulation 332/12 Building Code,   Information published by oncodes.ca for educational purposes only.