ANSI / EIMA 99-A-2017: Standard for Exterior Insulation and Finish Systems (EIFS) and EIFS with Drainage


ANSI/EIMA 99A – 2017 embodies the minimum requirements for specifying and installing Exterior Insulation and Finish Systems (EIFS) and EIFS with Drainage. The generic materials, details, and design considerations for EIFS and EIFS with Drainage are described in this standard. For specifications, application instructions, and details specific to a particular EIF System, consult the EIFS manufacturer’s product literature. In addition, care has been taken to incorporate the reference documents that constitute provisions of this American National Standard. The Annex contained in this standard is considered part of the standard.


The Guide to EIFS with Drainage Detailing replaces the previous Guide to EIFS Construction. The document highlights the basic components of an EIFS with Drainage system, as well as common detailing questions you might receive.

Inside you’ll find 26 pages of images depicting EIFS details. Included are the typical EIFS configuration, aesthetic reveals, graphic detailing, termination at different locations, sealants, and joints. All of this information is pivotal in making sure your next job meets expectations.

The Guide to EIFS with Drainage Detailing was designed and reviewed by R.J. Kenney Associates, Inc. and Trusted Translations, additional assistance was provided by the EIMA Technical and Research Steering Committee and EIMA staff.