Cultured Stone
EZ Scaffold Corp.
EZG Manufacturing
Federated Insurance
Fraco USA, Inc.
Hydro Mobile, Inc.
Kennison Forest Products, Inc.
Mortar Net Solutions
Non-Stop Scaffolding
Norton Clipper
Southwest Scaffolding
The Belden Brick Company
Xtreme Manufacturing

Calcium Carbonate Efflorescence in Stone Masonry Veneer

Provider: Mason Contractors Association of America
Discipline: Codes & Standards
Credits: 1.00

Stone masonry is one of the oldest and most durable construction materials for buildings. While many of the methods employed to construct stone masonry facades date back to the last century and beyond, new construction methods and wall system materials have changed the way Architects view stone cladding. Many buildings are constructed with stone veneer in lieu of the more conventional multi-wythe stone barrier walls of the 19th century. With these changes, the methods employed to construct these walls often also change, which in some areas of the country, have led to increased problems with water permeability and efflorescence formation.

This presentation explores a recently occurring phenomenon observed in many instances of stone veneer construction where severe calcium carbonate deposits form on the exterior of the stone masonry facades. The efflorescence is often accompanied by a significant reduction in the long term performance of the fa├žade and increase frequency of water penetration through the building envelope.

At the conclusion of this session, the attendees will understand the most significant contributors to calcium carbonate efflorescence in order to help specify specific design criteria to obtain the best possible construction for their stone veneer systems.

At the end of the course, the participants will:

For more information please visit or contact Mason Contractors Association of America at 800-536-2225.

Future Dates and Locations

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“The MCAA is working to solidify our industry.”

Donald McCauley
Hunt Country Masonry, Inc.
MCAA member since 2010

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