PHRC Events

HBAs Hosted Fundamentals of Exterior Plaster & Thin Stone Veneer Assemblies Workshop by PHRC

Date: 12/13/2017

On December 13, 2017, the Home Builders Association of Bucks and Montgomery Counties and the Home Builders Association of Chester and Delaware Counties hosted the Fundamentals of Exterior Plaster & Thin Stone Veneer Assemblies Workshop presented by the Pennsylvania Housing Research Center (PHRC). With speakers, Brian Wolfgang, associate director of the PHRC, and Steve Long, president of E.R. Long Associates, the workshop drew a full crowd with over thirty participants. The diverse audience included contractors, inspectors, and design professionals, who participated in a lively discussion during the workshop.

"The stucco failure capital of the United States" is how Joseph Lstiburek, internationally renowned building scientist, referred to eastern Pennsylvania in his article, The Perfect Storm. Improper installation of exterior plaster finish systems, like hardcoat stucco and adhered stone veneer, can lead to severe moisture problems and cracking. This workshop explored relevant exterior plaster code requirements, reviewed proper flashing techniques, lath requirements, and treatment of joints between dissimilar materials. Rainscreen systems and products were also discussed including their potential benefit to the exterior wall system.

By the end of the workshop, participants understood the code requirements that relate to the construction of exterior plaster and thin stone veneer assemblies and related the effects of improper construction technique to occupant risk and building failure. Also, they could detail appropriate flashing components in order to provide cost effective and durable construction solutions. All of this allowed them to comprehend the impact that evolving construction materials and progressive energy requirements will have on the resiliency of residential buildings. This informative workshop also provided continuing education credits to all participants.

As a reminder, all HBA members receive discounts to various PHRC events and trainings like our upcoming 26th Annual PHRC Housing Conference on February 28 and March 1, 2018 in State College, Pennsylvania. Also, please let us know if your group would be interested in hosting a workshop; view available topics here.



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