Concrete Vapor Retarder [What You Need to Know]

A slab has to dry and then stay dry. This short video covers four common sources of moisture in concrete and five things worth knowing about concrete vapor retarders.

Four common sources of moisture in concrete

1. Groundwater
2. Humidity
3. Leaky plumbing
4. The original concrete mixture

Five things to know about concrete vapor retarders

1. Why is too much moisture in concrete a problem?
2. What is a concrete vapor retarder?
3. What can be used as a concrete vapor retarder?
4. What’s an acceptable degree of vapor retarder permeability?
5. Where does the concrete vapor retarder go?

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