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    Concrete block · Resource center

    Cold-weather masonry

    Prepare the materials, site and protection plan for the weather.

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    Plan before temperatures fall

    Cold conditions affect mortar, grout, units and the work already installed. Review weather forecasts and the project’s cold-weather requirements with the contractor before work begins. Keep materials protected from freezing, snow and ice.

    Coordinate construction and protection

    StageTopics for the construction plan
    MaterialsStorage, dryness, temperatures and any required heating.
    PlacementCondition of units and supporting surfaces; mixing and placement requirements.
    New masonryCovering, enclosure, heat and required protection periods.
    VerificationTemperature monitoring, records and the applicable project specifications.

    Use the applicable requirements

    Historical temperature charts can differ from current project requirements. The contractor and designer should establish the applicable thresholds, protection periods and procedures. Do not use a general website summary as an installation specification.

    CMHA: all-weather concrete masonry construction ↗

    Use these resources to prepare for a project conversation. Confirm current products, dimensions and availability with Krebs; construction and performance requirements must follow the project’s applicable specifications.

    Talk with the Krebs Team ↗