The technical papers offered below contain information relative to the exterior envelope
AWCI Technical Paper on Stucco and Drainage Planes
The 2021 International Building Code was amended to include provisions on the requirement for a "drainage space or material" to be installed behind exterior cement plaster and in front of the also required water-resistive barrier. This paper provides information that delves into the specific code language and provides guidance on what it means to the contractor. A collaboration of the AWCI Sub-Committee on Lath and Plaster followed by a peer review by key experts in the industry produced this informative document..