Using Water Repellents to Prevent Water Intrusion into Above-Grade Masonry

Water intrusion creates a variety of problems for masonry structures, including freeze-thaw damage, chemical- and pollution-based attacks, efflorescence, calcium carbonate stains, and mold. This course reviews the application and specification considerations related to water repellents and how they can help to prevent these problems.

Upon completion of this course, the Learner should be able to:

• List the problems water creates for masonry structures that affect the durability and aesthetics of the building and the health of the occupants.
• State the role water repellents play in preventing those problems and the factors to consider when applying water repellents.
• Compare the three most common types of clear, penetrating, silicone-based water repellents in terms of composition, mechanisms of action, and performance.
• Discuss the goals of the Environmental Protection Agency (EPA) to improve air quality and reduce the harmful effects of volatile organic compounds (VOCs) and how VOCs relate to water repellents.
• Summarize the various performance test methods and specification preparation considerations to ensure proper product selection and project implementation.

Approximately 1 hour. Delivered online, at your own pace.

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