Introduced in the U.S. over 30 years ago, Exterior Insulation and Finish Systems (EIFS) are now nearly 30% of the commercial exterior wall market. For well over 20 of those years, Wind-lockŪ has provided contractors with Wind-DevilŪ fasteners and all the right tools for securing insulation board with adhesive and/or mechanical attachments, embedding fiberglass mesh and base coating, and applying finish coatings.