April 3, 2019 - 12:00pm

This event has already occurred.


Austin Center for Architecture
801 W. 12th Street
78701 Austin , TX
Phone: 512-452-4332


Durability of Tapes and Flashings as a Factor in Litigation

David H. Nicastro, P.E., F.ASTM
Chief Executive Officer
Building Diagnostics, Inc.

Problems with manufacturing, design, and construction cause countless premature failures of tapes and flashings; therefore, durability is a central factor in construction litigation. This presentation will synthesize a practical understanding of durability based on theoretical behavior, observations from failure case studies, and research and test results from The Durability Lab, a research establishment at The University of Texas at Austin. The durability concepts that support an allegation of “premature failure” will be explained. Improving durability is also closely related to sustainability; preventing premature failure keeps building materials out of the landfill longer.
The Durability Lab has tested dozens of air barriers and accessory products, including hundreds of combinations of adhesion testing of one product to another, fastener sealability, crack-bridging ability, coverage rate on sheathing, UV resistance, and water resistance. New findings will be presented on these subjects, including remarkable findings regarding durability behind cladding. Some products re-emulsified and washed away behind cladding, and others fused to the cladding so that it could not be removed.

Learning Objectives:
1.    Understand the factors that affect initial performance of tapes and flashings during application.
2.    Understand the factors that affect durability of tapes and flashings before cladding, including UV resistance.
3.    Understand the factors that continue to affect durability of tapes and flashings after cladding, including heat resistance, water resistance, and long-term adhesion.
4.    Understand different ways of testing tapes and self-adhered flashing products, and why the industry-adopted pull-off method is the least predictive of durability.

David H. Nicastro, P.E., F.ASTM, is a licensed professional engineer specializing in durability and failure causation theory. He analyzes existing buildings and designs remedies. He is the founder of Building Diagnostics and Engineering Diagnostics, which grew to be an Inc. 500 firm by 2000. He also founded The Durability Lab, a testing center housed at The University of Texas at Austin to study the durability of building components, identifying factors causing premature failure. Mr. Nicastro is the past chairman of ASTM Committee C24 on Building Seals and Sealants, and has published over 50 articles and books on durability and failure of building materials.

1 LU
lunch will be provided

BEC: Austin is an interdisciplinary organization that promotes the exchange of information on building enclosures and related science specific to the climate of Central Texas.

Interdisciplinary:  architects, engineers, contractors, building owners, consultants, facility managers, code officials, educators, manufacturers, and those with a stake in building enclosure performance

Exchange of information:  discussion, training, education, outreach, and awareness

Building enclosures and related science:  energy-efficiency, moisture control, indoor air quality, longevity, and durability

BEC: Austin typically meets the first Wednesday of each month from 12-1pm.
2019 BEC: Austin Committee Chairs:
Michael Craig, LEED AP BD+C
Kayla Maines, AIA