PHRC Webinars

Adapting Stucco & Stone Assemblies to Changing Codes

2/15/2022 1:00 PM - 2:00 PM ET

Instructor: Brian Wolfgang (Associate Director, PHRC) & Steve Long (E.R. Long Associates)


Link to Webinar:


With Pennsylvania’s Uniform Construction Code (UCC) updating to the 2018 ICC codes in early 2022, one of the critical changes that building professionals will need to consider involves stucco and stone wall assemblies. During the UCC code adoption process, provisions impacting stucco and stone were adopted based on language out of the 2021 International Residential Code. This session will dive into the changes that will have a significant impact on the design and installation of exterior plaster assemblies.

Learning Objectives

  1. Review the code provisions adopted into the PA Uniform Construction Code that impact stucco and stone wall assemblies.
  2. Discuss the impact of new lath installation provisions for exterior plaster assembly including fastener layout and spacing.
  3. Examine the implications on building performance of new water-resistive barrier requirements that impact both stucco and stone assemblies.
  4. Understand the new requirements for rainscreen gaps in stucco and stone wall assemblies, including associated material options, costs, and performance.


Free to attend; $20 for continuing education credit in live webinar

Credit Hours

Live Webinar: 1.0 PA L&I Contact Hour, 1.0 PA PDH, 1.0 AIA LU|HSW, 1.0 ICC Contact Hour (0.1 CEU), 1.0 NARI hour/CEU

Tags: Residential Structures and Building Code Requirements



The Pennsylvania Housing Research Center serves the home building industry and the residents of Pennsylvania by improving the quality and affordability of housing.

We conduct applied research, foster the development and commercialization of innovative technologies, and transfer appropriate technologies to the housing community.

Pennsylvania Housing Research Center

219 Sackett Building

The Pennsylvania State University

University Park, PA 16802

Phone: 814-865-2341

Fax: 814-863-7304