Epoxy in Structural Timbers APT/DVC Symposium 2012

  • 17 Mar 2012
  • 8:00 AM - 4:45 PM
  • Arch Street Meeting House, 320 Arch Street, PA 19106


  • Registration at door $100
  • Includes Annual membership in APT-DVC 2012
  • Includes APT-DVC Annual Membership 2012
    Registration at door $35.00

Registration is closed

ADVANCED REGISTRATION IS NOW CLOSED.  Limited walk-in space will be available the day of the symposium, however lunch cannot be guaranteed for walk-ins. 

The Delaware Valley Chapter of the Association for Preservation Technology is presenting the first of a planned series of one-day symposia on the use of epoxies in historic preservation.  Since Paul Stumes’ groundbreaking work in the 1970’s devising the W.E.R. system for timber repairs, the application of epoxies has expanded to the repair of almost every building component and type of historic material.

Epoxies hold the promise of being adaptable to almost any substrate and any use, yet the examples of the failure of epoxy repairs are legion.  Epoxy repairs and epoxy products are frequently specified by designers, and contractors often use epoxy products, yet the product formulations are generally secret and there are few industry standards to rely on.  

This first symposium will provide:

An introduction to the chemistry of epoxies

explain what it is and how it does what it does

discuss the factors that affect the chemistry

A brief synopsis of the history of epoxies in timber repairs

A review of the design basis for epoxy repairs of timber with case histories of epoxy interventions

A “hands-on” demonstration of the “Dos” and “Don’ts” of epoxy applications in wood.


Jack Abgott, Vice-President for Operations, Nickles Contracting, Inc.

J. Bryan Blundell, Preservation Resource Group and the Dell Corporation

William H. Gould, Jr., William Gould Architectural Preservation, LLC, Preservation Technologies

Thomas Normile, PE, Principal, Keast and Hood Company

Richard I. Ortega, PE, AIA, FAPT, Principal, Heritage Design Collaborative, LLC

George Wheeler, Ph.D., FAIC, FIIC, FAAR’97, Director of Conservation in the Historic Preservation Program at Columbia University and Consulting Scientist at the Metropolitan Museum of Art.


8:00 – 12:00 Registration

8:30 – 9:15 Introductory Remarks: From W.E.R. to Beta and Sidetrips in Between – A Non-comprehensive Personal History of Epoxy Applications in Wood (Ortega)

9:15 – 10:00 The Chemistry, Physics and Material Science of Epoxies (Wheeler)

10:00- 10.15  Morning Break – Coffee 

10:15 – 11:45 Applicators’ Point – Counterpoint:  What is the Right Epoxy

10:15 – 11:00 Knowing Epoxies (Gould)

11:00 – 11:45 Understanding the Variables (Blundell)

11:45 – 1:00 Lunch

1:00 – 2:30 Engineers’ Perspectives (Case Histories)

1.00-1:45 The W.E.R. System today (Abgott and Normile)

1:45 – 2:30 The Beta System (Ortega)

2:30 – 2:45 Afternoon Break

2:45 – 4:15 The Good, The Bad, and The Ugly – A demonstration of epoxy reinforcement application with examples of proper and improper installation (Blundell and Gould)

4:15 – 4:45 Questions and Answers

4:45 Adjourn

Refreshments during breaks and lunch included.