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2023 Annual Meeting & Symposium

Tested by Fire: Fired Materials

Friday, March 3, 2023
Salem, MA
In-Person and Virtual All-Day Symposium

The Annual Symposium and Meeting will be held on March 3, 2023 in Hawthorne Hotel in Salem, MA, as well as virtually via Zoom for those unable to join us in person.

The overarching theme for this year's Symposium is Fired Materials and runs the gamut from utilitarian clay sewer pipes and brick masonry, to ornate art tile and polychrome terra cotta. Their usage has allowed buildings, cities, and regions to grow rapidly or take on unique visual characteristics.

How have these materials evolved over time and how have our cities and towns evolved with them? What challenges are present when trying to restore or protect fired materials manufactured in a different time period with different processes and materials? Have some past restoration techniques evolved, while others have stood the test of time? What role do fired materials have in the evolution of fireproofing in buildings? 

Register for Annual Meeting & Symposium

 Keynote Speakers

Roy J. Ingraffia, Jr., Assoc. AIA, PA AIC, APT RP Roy directs IMI’s marketing, industry development, research, and technical services programs nationwide. In his leadership role, Roy manages all aspects of day-to-day operations and long-term partnerships and initiatives. As an architectural conservator with technical experience in design and contracting capacities, his professional work has primarily focused on the preservation of historic masonry structures through research of traditional materials/methods and development of contemporary restoration techniques. He is an Associate of the American Institute of Architects (AIA) and a Professional Associate of the American Institute for Conservation of Historic and Artistic Works (AIC), and Recognized Professional of the Association for Preservation Technology International (APT). In addition to his work with IMI, Roy teaches the Masonry Conservation Seminar within the Graduate Program in Historic Preservation at the University of Pennsylvania. 



John Ochsendorf is the Class of 1942 Professor of Engineering and Architecture at the Massachusetts Institute of Technology. He is the author of Guastavino Vaulting: The Art of Structural Tile (2010) and he served as lead curator of the exhibition Palaces for the People: Guastavino and America’s Great Public Spaces. Ochsendorf trained in structural engineering at Cornell, Princeton, and the University of Cambridge.


Schedule of Events


Thursday, March 2nd
4:00 - 5:00 PM Tour 1: Salem Trolley Tour
5:30 - 8:00 PM APTNE Pre-Symposium Networking Event
Sofia's and
Nat’s, Hawthorne Hotel





Friday, March 3rd
8:00 - 9:00 AM Registration and Breakfast
Hawthorne Hotel, First Floor
9:00 - 9:10 AM APTNE Welcome Address
Outgoing APTNE President, Helena Currie, PE, & Incoming APTNE President, Corey Spitzer
9:10 - 9:55 AM Morning Keynote Presentation: How Masonry Will Save the World
Keynote Speaker, Roy Ingraffia, AIA, PA-AIC, APT-RP, International Masonry Institute
9:55 - 10:20 AM Brick Masonry Gymnastics- Pushing the Structural Limits on Historic 17th through Mid-19th Century Chimney Masses
Elizabeth Acly, PE, APT-RP, Cirrus Structural Engineering
10:20 - 10:35 AM The Coplay Kilns and Birth of the American Portland Cement Industry
Preston Hull, Building Conservation Associates, Inc.
10:35 - 10:45 AM Q&A
Moderator: Michelle Dallhoff, RA, WJE Engineers & Architects
10:45 - 11:05 AM Coffee and Refreshment Break
First Floor
11:05 - 11:20 AM Salem Prepares to Commemorate its Quadricentennial
Patricia Kelleher, Salem Department of Planning and Community Development
11:20 - 11:45 AM Subway Tile: From Platform to Backsplash
Edward FitzGerald, Jablonski Building Conservation
11:45 AM - 12:10 PM Structural Restoration and Renovation of Terra Cotta Materials
Jonathan Hernandez, PE, & Mark Beltramello, PE
12:10 - 12:20 PM Q&A
Moderator: Michelle Dallhoff, RA, WJE Engineers & Architects
12:20 - 12:30 PM Chapter Highlights APTNE
President, Helena Currie, PE
12:30 - 2:00 PM Lunch, APTNE Annual Board Meeting
Essex Room and Pickman Room, Mezzanine level
2:00 - 2:45 PM Afternoon Keynote Presentation: Guastavino Vaulting and the Art of Fireproof Building
John Oschendorf, Massachusetts Institute of Technology
2:45 - 3:10 PM Preserving Gauged Brick Arches at Old South Meeting House, Boston
Ivan Myjer, Building and Monument Conservation
3:10 - 3:35 PM Splatter Up! Repairing and Replicating Guastavino Tile at the Iconic Plymouth Rock Portico
Jack Glassman, AIA, LEED AP, National Park Service
3:35 - 3:50 PM Use of Rainscreen Cladding Building Systems to Promote the Rebuild of Historic Terra Cotta Assemblies
Joshua Jaskowiak, PE, & Matthew Haberling, PE, WJE Engineers & Architects
3:50 - 4:00 PM Q&A
Moderator: Jennifer Kearney, Jablonski Building Conservation
4:00 - 4:20 PM Coffee and Refreshment Break
First Floor
4:20 - 4:45 PM Collar Joint Stabilization in Fired Clay Masonry Assemblies
John Wathne, PE, & Norman Weiss, FAPT, FAIC, FSA, Voidspan Technologies
4:45 - 5:10 PM Performance Testing of Materials to Repair Terra Cotta Glaze Spalls
Lauren DiCenzo, PE, & Carolyn Searls, PE, Simpson Gumpertz & Heger Inc.
5:10 - 5:35 PM Traditional Chinese Roofing Tiles in Salem, MA
Bill Brandow & Clay Palazzo, AIA, LEED AP, John G. Waite Associates, Architects
5:35 - 5:45 PM Q&A
Moderator: Jennifer Kearney, Jablonski Building Conservation
5:45 - 5:50 PM Closing Remarks
APTNE President, Helena Currie, PE
6:00 - 8:00 PM Reception
Peabody Essex Museum, East India Hall


Saturday, March 4th
10:00 AM - 12:00 PM Tour 2: House of the Seven Gables

10:15 - 11:00 AM
11:00 - 11:45 AM

Tour 3: Specialized Tour of Yin Yu Tang House at Peabody Essex Museum
William Brandow and Clay Palzzo, AIA, LEED AP, John G. Waite Associates, Architects
10:00 AM - 5:00 PM Peabody Essex Museum, including YYT House
Discounted Tickets provided during Symposium









Register for Annual Meeting & Symposium


  • APTNE Members:
    • $150, discounted to $125 through January 31
    • Sponsors may be Complimentary, depending on sponsorship perks
    • Young Professional: $40
    • Students are Complimentary
    • Virtual Symposium: $50; all students are Complimentary
  • Non-Members:
    • $180, discounted to $165 through January 31
    • Virtual Symposium: $80
    • Students are Complimentary
  • Reception Only: $60
  • Vendor Display Table: $1,500.  This ticket includes entry and lunch for the ticket holder and one guest.  This year we have 14 display tables available on a first-come first-served basis.  The tables will be set up on the main floor in Sophia's and Nat's.  Each table is 2' 6" x 6'.

Symposium A La Carte Options:

  • Catered Lunch: $30 includes:

    • Caprese Salad (Chopped Mixed Greens, Ripe Tomatoes, Mozzarella Pearls, Chiffonade Basil, Roasted Garlic Olive Oil)
    • Vegetarian Rollatini (Roasted Vegetables, Herbed Ricotta, Marinara)
    • Chicken Piccata (Lemon, Capers, White Wine Green Beans)
    • Mini Cannoli's and Cookies
    • Freshly Brewed Coffee, Tea, Decaffeinated Coffee
  • Reception (with Symposium Ticket): $50 

    • Our reception will begin immediately following the Symposium, from 6:00 to 8:00 pm at the Peabody Essex Museum.  There will be an open bar, light hors d'oeuvres, and refreshments.
  • Tours $25
    • House of the Seven Gables
    • Trolley Tours
    • Yin Yu Tang House ($10, within PEM which requires general admission ticket)
  • Peabody Essex Museum
    • Showing your conference nametag will allow for purchase of discounted tickets will be provided to all Symposium attendees.
  • Display Table: $1,500.  
    • Marble and Granite Sponsors are offered a complimentary table
    • Limestone sponsors are offered a 50% discount

Details and Logistics

Continuing Education

Continuing education credits will be provided for Friday's attendance at the Symposium (approximately 6.0 HSW credits [to be confirmed]). Please note your preference for reporting CEU's during the registration process. Confirmation of attendance will be required on the day of the Symposium or at least 3/4 of the Symposium via Zoom.

Thursday Night Networking

Join us for pre-symposium networking and socializing on the main floor of the Hawthorne Hotel, in Nat's and Sophia's. Appetizers and drinks will be provided.  Live piano will also be provided.

Symposium Location

APTNE 2023 Annual Meeting & Symposium:

Hawthorne Hotel
18 Washington Square W
Salem, MA 01970


Parking is available in the lot behind the Hotel.
Additional parking can be found here:


By Train
  • MBTA Commuter Rail- Newburtport/Rockport Line to/from Boston.
  • Trains depart from North Station. A standard one-way ticket costs $8.00, and the ride takes about 30 minutes.
By Ferry
  • Salem Ferry to/from Boston (55 minutes)
  • Boston Harbor Cruises operates a ferry from Long Wharf to Salem during the summer and fall. It's a great way to enjoy the scenic route along the Massachusetts coast. An adult one-way ticket costs $25.
    • Commuter Rail passes for Zone 3 are valid for travel on the 7 AM ferry trip to Boston and the 5:30 PM ferry trip to Salem. Without a Commuter Rail pass, fares for these commuter trips are $8 one-way, $16 round trip.

By bus

By Air - Boston’s Logan International Airport
  • 22 minute/14 mile drive in Uber/Taxi (typically $50).


Highs typically mid 40s – lows in mid-20s.

Meals & Drinks  

Breakfast, snacks and drinks will be provided to all attendees, lunch will be provided to those who purchase one, and the reception will have a variety of  hors d'oeuvres stations. 


We have a 78 room hotel block for the entire Hawthorne Hotel (also our venue) for Thursday and Friday night. Discounted rate is available through February 16th

  • $149/night for Standard rooms; $179/night for Suites
  • Call 978-744-4080 Monday though Friday to book.  There is no way to book online.
    • Please tell them you are "looking to book in the hotel block on March 2nd/3rd booked by APTNE".
  • Other nearby hotels

Attendee List: 

With your consent, APTNE shares your name, company and email within our membership in the spirit of collaboration and professional networking.  We treat your information as privileged and do not use information for marketing or promotional purposes beyond APTNE and related industry activities; we ask our attendees to do the same. The attendee list will be made available to attendees at the Annual Meeting & Symposium and members may access the attendee list in the Members Only pages.


Register for Annual Meeting & Symposium



Thursday, March 2nd 

Tour 1: Salem Trolley Tour, 4 – 5 pm
The Salem Trolley is the best way to see Salem and to experience the Witch City’s unique and colorful past. Since 1982, Salem Trolley has set the standard for sightseeing tours and exceptional transportation north of Boston. The Salem Trolley provide APTNE with a narrated one hour tour through beautiful and historic Salem in a heated trolley. Explore Salem’s witchcraft trials of 1692 or travel beyond the witchcraft hysteria into the fascinating realm of Salem's literary and maritime history. The eight mile ride around the city takes you past the Charter Street Burial Ground, the House of the Seven Gables, Witch Dungeon Museum, Salem Witch Museum, the historic waterfront area and other locations, including Chestnut Street considered to be one of the most beautiful streets in America.
The tour will begin and end at the APTNE Symposium venue, the Hawthorne Hotel, at 18 Washington Square West, at 4 PM, on Thursday, March 2nd. Salem Trolley will pick up the group at 4 PM at the Hawthorne Hotel to begin their one-hour narrated tour of the city in a heated trolley with 14 stops.  Note that The front half of the Trolleys have glass windows that open and close and the rear section of the Trolleys have see thru plastic curtains that close and zipper shut in inclement/cold weather.
• Limit: 35 people
• Cost: $25

Saturday, March 4th: 

Tour 2: House of the Seven Gables Tour, 10 am to 12 pm  SOLD OUT - you may join the waitlist
Join APTNE on a tour of the historic House of the Seven Gables. An approximately 1- hour tour specifically tailored to preservation professionals that will highlight the architecture and history of the Gables, as well as the changes to the building since it was purchased by Caroline Emmerton in 1910. Afterwards, guests are welcome to peruse the surrounding buildings, gardens and grounds on the 2- acre National Historic Landmark District.
Note, limited ADA access: Due to the nature of their historic architecture The House of the Seven Gables, the Nathaniel Hawthorne Birthplace, and the Hooper-Hathaway House are not wheelchair accessible. The Visitor Center and restrooms, Colonial Revival Gardens, museum grounds and a portion of the museum store are wheelchair accessible.
• Address: 115 Derby Street
• Limit: 25 people
• Cost: $25
• 9 minute walk from Hawthorne Hotel
WAITLIST for House of the Seven Gables Tour
Tour 3: Yin Yu Tang House Tour at Peabody Essex Museum, 10:15 - 11:00 am and 11:00 to 11:45 am
Join an APTNE-exclusive tour of the Yin Yu Tang House, located at the Peabody Essex Museum in Salem, MA. The tour will be led by Bill Brandow and Clay Palazzo of John G. Waite Associates, the firm that led the reconstruction of the historic Chinese home in Salem over 20 years ago. This immersive experience will provide a rare perspective on Chinese art, architecture, and culture, and also explore the technical challenges associated with this one-of-a-kind structure.
Two (2) 25-person tours are available; each will be approximately 45 minutes Please note that to access the Yin Yu Tang House, a General Admission ticket is required by the Peabody Essex Museum, details can be found here: Additionally, a discounted ticket will be available to those who show their Symposium badges to the ticketing staff.
Note: Still, non-flash photography for personal use is permitted but videography is not.  The house offers limited wheelchair accessibility. Please contact the Guest Services Department for additional information at 978-542-1644.  Yin Yu Tang is outdoors and is cool in winter.  Backpacks and umbrellas are not permitted in the museum or in the house. Please check these belongings in the coat room. Strollers are not permitted in Yin Yu Tang; you may leave them with our staff at the entrance to the house. See "Planning your visit to Yin Yu Tang: A Chinese House" for further information
Event Leaders: 
William Brandow is an Associate with John G. Waite Associates, Architects, and has served as Masonry Conservation Specialist and Project Manager on the firm’s most significant restoration and preservation projects for over 15 years. In his time with the firm, he has contributed to the success of a variety of preservation projects including the stabilization and relocation of the 1816 Farmington Meetinghouse, Farmington, NY; the restoration of the Parish of All Saints, Ashmont in Dorchester, MA; the restoration of Kingston City Hall, Kingston, NY; the re-erection of Yin Yu Tang for the Peabody Essex Museum in Salem, MA; and the restoration of the iconic Art Deco style Cincinnati Union Terminal, Cincinnati, OH.
Clay S. Palazzo, AIA, LEED AP, is a Principal with John G. Waite Associates, Architects. He has managed some of the firm’s most prestigious projects, including the restoration and re-erection of Yin Yu Tang, a late eighteenth-century Chinese merchant’s house at the Peabody Essex Museum in Salem, Massachusetts; the restoration of Cincinnati Union Terminal in Cincinnati, Ohio; the restoration of the Rotunda at the University of Virginia (Charlottesville, VA); and numerous National Park Service projects ranging from the Statue of Liberty, to the Grand Memorial Arch at Valley Forge, to the restoration of Vanderbilt Mansion (Hyde Park, NY). He is currently the principal in charge of the historic structure report for Biltmore in Asheville, North Carolina; the restoration of the Jefferson Hotel in Richmond, VA; and the exterior restoration of Sheldon Hall at SUNY Oswego.
• Address: Peabody Essex Museum at East India Square, 161 Essex Street
• Limit: 25 people per tour
• Cost: $10
• 3 minute walk from Hawthorne Hotel
Register for Yin Yu Tang House
Peabody Essex Museum
  • All in-person attendees of the Symposium will be eligible for $5 off admission at the Peabody Essex Museum for use on Saturday March 4, which is open 10 am – 5 pm.  Just show your conference nametag and you'll get the discount!
  • A separate (free) timed ticket must be acquired to visit the Yin Yu Tang: A Chinese House.
    • Tours occur every 30 minutes and can be acquired online and/or within the museum itself during your visit.

Additional Nearby Attractions
APTNE has provided a list of nearby attractions, which may be of interest to those looking to or planning to attend the Symposium.  If you would like to learn more about things to do in the nearby area, please Click Here


Did you know that many of APTNE's sponsorship levels include free Symposium registrations and discounts? Please consider becoming a new Sponsor for 2023 or renewing your lapsed sponsorship and show your support for APTNE and the preservation community. Sign up here.



Thank you for your continued support of APTNE, we look forward to seeing you in March!


Thank you to the Symposium Committee for your amazing efforts!
Chair: Corey Spitzer. Committee Members: Adrienne Cali, Alafia Akhtar, Brigitte Cook, Ellen Lane, Jennifer Kearney, Jess Ouwerkerk, Michelle Dallhoff, Stacey Thomas


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