In the early 1990s, there were mixed opinions about what could, and what should not, be done with exterior insulation and finishing systems (EIFS) as an exterior cladding. However, at that time over 20 years ago, the EIFS industry began the conversion from barrier wall assemblies to rainscreens. Concerns about face-sealed claddings, due to incidental moisture intrusion, led to EIFS manufacturers incorporating a drainage plane in their assemblies for incidental moisture.