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Glossary

Barrier System or Perfect Barrier

The general term to describe a rain control approach that relies on the perfection of a single plane of material(s) to resist rain water penetration. Two sub-types, face-sealed and concealed barrier, are commonly used.

Related terms: Face-seal, Sourced Drained

Related resources: BSD-146: EIFS—Problems and SolutionsRR-0406: Face Sealed vs. Drainable EIFS, High Performance Enclosures, BSI-001: The Perfect Wall