Association for Preservation Technology
Delaware Valley Chapter

Upcoming events

    • 27 Apr 2018
    • 10:00 AM - 1:00 PM
    • Eastern State Penitentiary
    • 1

    APT-DVC is sponsoring a half day workshop at Eastern State Penitentiary on Friday April 27 from 10 am to 1 pm. This event is being held on the final day of a week-long training program being held for masonry apprentices from Williamson College of the Trades by the International Masonry institute and the Bricklayers and Allied Craftworkers Local 1 PA/DE.

    The program will begin with an hour- long presentation on the methods and materials for repointing historic masonry structures. Afterwards, participants will have the opportunity to work side-by-side with the apprentices to repoint a section of wall along the 1903 Kitchen building, that has stone sections dating to an earlier 1830’s construction.

    Additional support will be provided by Pullman SST and material is being supplied by Limeworks and Cava Building Supply.

    This program counts towards 2 AIA Continuing Education Hours and lunch will be provided. Space is limited to 15 participants.

    • 09 Jun 2018
    • 11:00 AM
    • 5160 Main Street, Whitehall, PA 18052

    Please join APT-DVC and the Oliver Evans (Philadelphia) Chapter of the Society for Industrial Archeology on Saturday, June 9 for an expanded tour program as we explore the cement manufacturing industry in the Lehigh Valley. The half-day program will include historic cement manufacturing sites such as the Coplay Cement Company vertical kilns; a museum dedicated to the Atlas Cement Company, the cement manufacturing giant of the 20th century; and an active cement manufacturing plant, LaFargeHolcim.

    The Coplay Cement Company constructed 8 vertical-type brick kilns for the production of cement between 1893 and 1904. These kilns are among the last of the vertical-type kilns remaining in the US (and possibly the world), as the more efficient rotary-type kiln was developed soon after their construction. This tour will include an introduction to the history of the cement industry in the Lehigh Valley, the Coplay Cement Company, and the vertical kilns. A discussion of the kilns' conditions, conservation issues, and attempts to stabilize and preserve the kilns will follow. Attendees will then take a hard hat tour of the kilns. Guides include Preston Hull of Building Conservation Associates, Inc., Brian Wentz of Keast & Hood, Erik Valentino of Masonry Preservation Services, and Vanessa Della Torre of Spillman Farmer Architects.

    The Atlas Cement Company was one of the largest cement manufacturing companies of the 20th century. Started in the Lehigh Valley in 1889, Atlas manufactured cement out of their Northampton plant for such incredible structures such as the Panama Canal, the Empire State Building, and the Holland Tunnel. Atlas closed their doors in 1982 and soon after Ed Pany, whose father worked at Atlas his entire life (and who himself worked there during summers in the 1950s), created the Atlas Cement Company museum, collecting over 3,000 artifacts. This tour will be conducted by Ed Pany, where he will talk about the history of the Atlas Cement Company through the many artifacts he has collected.

    LaFargeHolcim is the largest cement and building materials manufacturing company in the world, with plants in 80 countries. The company was started in 1883 in France and their Whitehall, PA plant has been in use since 1899, making Whitehall one of the oldest operating cement plants in the United States. This tour will include a brief lecture on plant safety and the manufacturing process followed by a tour of the plant to see all of the equipment that used to make the product, from quarry to shipping.

    Safety Equipment

    The tour includes a hardhat walkthrough of the Coplay site. Please bring your own hardhat. If you cannot provide a hardhat,please email Kevin Wohlgemuth ( and APT-DVC may be able to provide one for your use. All Personal Protective Equipment for the tour of the LaFarge plant will be provided by LaFarge. All they ask is that you wear closed-toed shoes.


    The tour will begin at 11 am on Saturday, June 9 at the LaFarge Whitehall plant. It is about 1.5 hours north of Philadelphia at 5160 Main Street, Whitehall, PA 18052. Please arrange to carpool, as parking space will be limited. Please let Kevin know if you can volunteer to drive others. The registration fee for carpool drivers (at least 3 in a car) will be refunded as reimbursement for gas.


    $20 for APT-DVC and SIA members / $35 for non-members (lunch included in registration)

    Free for carpool drivers (at least 3 in a car)

    Limit 10 APT-DVC attendees. This tour is provided in cooperation with the Oliver Evans (Philadelphia) Chapter of the Society for Industrial Archeology. Registration for 10 additional attendees is provided through the SIA.

    Reference Material:

Past events

20 Apr 2018 APT DC/APTI Masonry Cleaning Workshop
18 Apr 2018 Spring Happy Hour with YFPA + APT Delaware Valley
09 Feb 2018 The Concrete Surface: Symposium and Workshop
25 Jan 2018 2018 Annual Membership Meeting
04 Nov 2017 Monuments of the Centennial Landscape, Fall 2017 Walking Tour
28 Oct 2017 Coplay Cement Kiln Tour
28 Sep 2017 Secrets of the Schuylkill, Fall 2017 Riverboat Tour
14 Sep 2017 Longwood Gardens: Main Fountain Garden Revitalization Project Tour
10 Jun 2017 Coplay Cement Kilns Tour
20 May 2017 Walking Tour & Stone Carving Workshop
20 May 2017 Architectural Tours of Bryn Athyn
15 Feb 2017 Holzman Iron Studio Tour
19 Jan 2017 2017 Annual Membership Meeting
15 Oct 2016 Secrets of the Schuylkill, Fall Riverboat Tour
28 Jul 2016 Schuylkill Summer Riverboat Tour: POSTPONED
11 Jun 2016 Behind the Scenes of Fonthill Castle
05 May 2016 Longwood Gardens: Main Fountain Gardens Restoration Project – Shop Tour
11 Mar 2016 APT-DVC 2016 Symposium - Documentation Data
28 Jan 2016 2016 Annual Membership Meeting
12 Nov 2015 Philadelphia 30th Street Station: Behind the Scenes
10 Oct 2015 Construction Tour: Conservation of the John Bartram House
17 Sep 2015 Secrets of the Schuylkill Fall Riverboat Tour
04 Aug 2015 Chillin' with Tiffany: Conservation of a Tiffany Rose Window
21 May 2015 Feats of Clay: Philadelphia Brick & Terra Cotta, Reception & Curator's Talk
12 Mar 2015 The Woodlands Cryptoporticus Assessment & Preservation
29 Jan 2015 Annual Membership Meeting
04 Nov 2014 2014 ICRI Delaware Valley Masonry Strengthening Symposium
24 Sep 2014 IMI-APT/DVC Masonry Cleaning Program
11 Sep 2014 Andalusia Big House Preservation Planning
02 Aug 2014 SS United States tour
30 Jun 2014 Call for Candidates for the 26th Richard Morris Hunt Fellow 2015 Fellowship Application
10 May 2014 New York Chapter of the Association for Gravestone Studies (AGS) Spring Meeting
07 May 2014 Protective Coatings for Concrete
30 Apr 2014 Call for Papers/Presentations for 2014 APT DC Chapter Symposium The Challenges of Preserving Modern Materials & Assemblies
26 Mar 2014 The Acropolis of Athens: Recent Analysis and Conservation
20 Feb 2014 Talk20
23 Jan 2014 Annual Membership Meeting
16 Nov 2013 Successful Collaboration Efforts of Conservators, Preservationists and Fine Arts Handlers
11 Oct 2013 APTI Conference: Preserving the Metropolis
30 Sep 2013 Conserving a Time Capsule: The Wagner Free Institute of Science
24 Sep 2013 Masonry Restoration Day
12 Sep 2013 "Something Old, Something New"
12 Jun 2013 The Alhambra: History, Construction, and Preservation
05 Jun 2013 Second National Covered Bridge Conference
08 May 2013 Unearthing a Masterpiece; The “Lod Mosaic” at the Penn Museum
05 Apr 2013 Restoring a Double Architectural Icon: Notre Dame de Paris
18 Mar 2013 'The Meadows Neighborhood in Southwest Philadelphia: Recovering a Lost Landscape'
28 Feb 2013 Conservation of Independence Hall Weathervane
20 Feb 2013 The Divine Lorraine and the Architecture of the Peace Mission Movement
25 Jan 2013 Architecture and Energy: The Influence of Climate and Region
24 Jan 2013 Annual Membership Meeting
14 Jan 2013 The Philadelphia Facade Ordinance and Design Professionals: Risk versus Reward
11 Dec 2012 Fellows Reception Association Preservation Technology International
27 Nov 2012 Philadelphia Chapter Society of Architectural Historians CONSERVATION OF FRANK FURNESS' 1876 CENTENNIAL ARCH
20 Oct 2012 Landscape Restoration at Philadelphia's Fairmount Water Works
06 Oct 2012 DOCOMOMO Tour of Modernist Buildings at the University of Pennsylvania
20 Sep 2012 UNCOMMON MODERN:Commercial Vernacular Architecture in Greater Philadelphia, 1937-1970
13 Sep 2012 Recent Restoration Projects at the Woodlands Mansion
20 Apr 2012 Aerial Boom & Scissor Lift Training
16 Apr 2012 Phoenix from the Ashes: New Life for Coventry Cathedral
17 Mar 2012 Epoxy in Structural Timbers APT/DVC Symposium 2012
26 Jan 2012 Annual Membership Meeting
30 Dec 2011 Memorial Service, Henry Jonas Magaziner 1911-2011
08 Nov 2011 Board Meeting
18 Oct 2011 Structural Stabilization, Restoration, Life Safety and Accessibility Improvements at Merion Meetinghouse
13 Sep 2011 Board Meeting
12 Jul 2011 Board Meeting
28 Jun 2011 Tour of Frank Lloyd Wright’s Beth Sholom Synagogue, Elkins Park, PA.
19 May 2011 A Tour of the recently restored Louis Kahn Bath House and Day Camp, in Ewing, NJ
10 May 2011 Board Meeting
06 Apr 2011 A presentation on the Metal Restoration at Philadelphia City Hall, Philadelphia, PA
24 Mar 2011 Climate Management in Historic Buildings: The Old, the Cold, and the Mold
08 Mar 2011 Board Meeting
04 Mar 2011 Delaware Valley ICRI Facade Symposium
08 Feb 2011 Board Meeting
20 Jan 2011 Annual Membership Meeting
09 Nov 2010 Board Meeting
03 Nov 2010 Guastavino Vaulting: The Art of Structural Tile-A Book Talk and Signing with Author John Ochsendorf
25 Sep 2010 Nemours Mansion and Gardens Tour
14 Sep 2010 Board Meeting
13 Jul 2010 Board Meeting
20 May 2010 Construction History Society Second Biennial Meeting
11 May 2010 St. John the Evangelist Church - Stabilization and New Construction
11 May 2010 Board Meeting
09 Mar 2010 Board Meeting
05 Mar 2010 Architectural Cast Stone- Presentation & Facility Tour
16 Feb 2010 Structure, Architecture and Conservation of The Guggenheim, NYC.
19 Jan 2010 Board Meeting
14 Jan 2010 APT/DVC Annual Meeting
04 Apr 2009 APT/DVC Symposium 2009
10 Feb 2009 Saint Francis De Sales, Investigation Study and Tour
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