By Lisa Mroszczyk Murphy, AICP
On June 10, 2017 the Maryland Association of Historic District Commissions (MAHDC) will host their second annual statewide symposium in Rockville, MD, focusing on the often controversial topic of the use of substitute materials on historic properties. At this highly anticipated event participants will be able to learn about non-traditional materials and their appropriateness for use on historic buildings through interactive sessions led by leading practitioners in the field and from fellow historic preservation commissioners, staff, historic property owners, and preservationists.
The Replacement Materials Symposium will tackle the following questions:
- Why do preservationists have a tradition of retaining historic materials and how do replacement materials fit in?
- What are the current trends in historic preservation commissions accepting or denying substitute materials?
- How do commissions and staff best incorporate alternate materials into their design review process and guidelines?
- What do these replacement materials look and feel like up close?
The round out the day’s discussion, participants will have an opportunity to visit the Vendor Hall where leading manufacturers of some of the most popular types of alternate materials such as cementitious siding, door and garage door materials, recycled plastic for porch floors, fiberglass and vinyl porch columns, synthetic slate, and aluminum clad and composite/fiberglass windows. Participants will be able to speak to the vendors while touching and seeing the materials in person. Check out the event website for a full list of material manufacturers.

Dr. Theodore Prudon
The symposium keynote speaker will be Dr. Theodore Prudon, FAIA, FAPT, FoIFI, BNADr. Dr. Prudon is an internationally renowned architect, preservation expert, architectural engineer, author, and educator. He has a deep building and architecture experience which spans hundreds of significant award winning projects over his 40 year career. He is one of the founding partners of the SC COLLECTIVE and founder of his practice of Prudon & Partners. He splits his time as Associate Professor at Columbia University’s Graduate School of Architecture, Planning, and Preservation, with his role as Professor at the Pratt Institute School of Architecture, Graduate Program for Historic Preservation. Dr. Prudon serves as the president of the US chapter of DOCOMOMO (DOcumentation and COnservation of buildings, sites and neighborhoods of the MOdern MOvement), which is dedicated to the preservation of modern heritage. He is the author of his seminal and award winning book, Preservation of Modern Architecture published by John Wiley & Sons (April 2008).
MAHDC thanks our Principal Sponsors the City of Rockville and JELD-WEN, as well as our additional sponsors—Royal Building Products, Maryland Historical Trust, and Preservation Maryland.
MADHC Replacement Materials Symposium
June 10, 2017, 8:00 AM- 4:00 PM
Rockville City Hall, 111 Maryland Avenue, Rockville, MD 20850