A Decade of Change: Recent Revisions to ASTM Stucco Standards

This topic was initially presented at the 2020 Virtual Convention.

Although stucco has been in use for centuries, standards regarding its design and application were not developed until the early part of the twentieth century. Over time, these standards have been modified in response to changing needs, developments, and expectations within the industry. Revisions to stucco-related ASTM standards have accelerated over the past ten years in particular, changing the standards drastically. This paper will summarize the most significant of these changes and discuss the genesis and reasons for them. It will also examine areas of future progress on the standards anticipated over the coming decade.

Patricia M. Aguirre, REWC, PE, CDT

Bristow, VA

Patricia Aguirre a building enclosure consultant in northern Virginia. Her work focuses on forensic field and laboratory investigations; façade and building enclosure investigations; structural inspection, analysis, and design; architectural retrofit and repair; and development of design documents and repair recommendations. Aguirre is an active member of IIBEC, serving on the REWC Exam Committee and teaching several exterior wall-related courses. She also serves on ASTM C11 Committee on Gypsum and Related Building Materials and Systems.

Matthew Innocenzi, RBEC, PE

Nick Innocenzi & Sons Consulting Engineering and Associates, LLC | Warrenton, VA

Matthew Innocenzi is principal of his firm. He has 20 years of experience as an engineering consultant, with a focus on litigation support and expert testimony for building enclosure systems, particularly light-gauge metal framing, Portland cement stucco, brick veneer systems, steep-slope roofing materials, and waterproofing. Innocenzi is also an active member in ASTM C11 and D08 committees on Gypsum and Related Building Materials and Prepared Roofing Systems, serving as chairman and technical contact for ASTM C926, Standard Specification for Application of Portland Cement-Based Plaster and ASTM C1860, Standard Test Methods for Measurement of Tensile Strength or Bond Strength of Portland Cement-Based Plaster by Direct Tension task groups.