Current Events 

    • Friday, April 20, 2018
    • 8:00 AM
    • Saturday, April 21, 2018
    • 3:30 PM
    • International Masonry Institute, 17101 Science Drive, Bowie, MD 20715

    Registration for the Masonry Cleaning Workshop is Now Open! Follow the link Below to Register on the APT International website.


    Day 1:  Principles, technologies and protocols for cleaning historic masonry have been evolving for decades and continue to evolve.  In this new workshop practicing professionals and contractors systematically present and demonstrate the current state-of-the-art in methods, issues and best practices for cleaning.  Suitable for both emerging and experienced practitioners in preservation, the workshop will include: 

    *    Cleaning Philosophies
    *    Masonry Materials and Geology
    *    Types of Soiling
    *    Cleaning Methods Overview
    *    Cleaning Protocols
    *    Hands-on Demonstrations of Various Cleaning Techniques
    *    Reference Materials
    *    Breakfast and Lunch provided 
    *    Plus, Networking Cocktail Reception with the Speakers and Demonstrators

    Day 2:  is a bus tour to the Jefferson Memorial and Architect of the Capitol (AOC) properties in downtown Washington, DC.

    10.0 LU AIA CES Registered credits are available for this 2-day workshop. (APTI04202018) Visit the workshop website for more info.

    Register now! Spots are limited.

    • Saturday, April 28, 2018
    • 10:00 AM - 11:30 AM
    • Carnegie Library of Washington D.C., 801 K Street, Washington, D.C. 20001
    • 0
    Join waitlist

    Please join APT DC for an exciting demonstration of the masonry restoration techniques used at the Carnegie Library! This event has been rescheduled from its original date of April 7th due to inclement weather.

    Designed by the firm of Ackerman & Ross and dedicated in 1903, the Carnegie Library at Mount Vernon Square was the first building constructed to house the recently established D.C. Public Library System. Construction was funded by Andrew Carnegie as part of his nationwide library program to encourage free and public dissemination of knowledge. The building is clad in Vermont marble with sculptural decorations by Philip Martiny, and it features banks of columns on the north side to house the book stacks, a feature celebrated in the design of the New York Public Library from a few years later. The base of building is clad with Milford Pink Granite.

    The building is currently undergoing a transformation to become a retail store with a public forum, gallery, and office space for the Historical Society of Washington, D.C. As part of the project, the masonry façade is being restored. Beyer, Blinder, Belle Architects & Planners and Conservation Solutions, Inc. collaborated on the restoration design approach. Lorton Stone and Grunley Construction are the contractors for the restoration. The event will provide an overview of the façade survey that was completed in 2016, and the general cleaning methods that are currently in process on the marble and granite facades will be demonstrated.

    1 HSW LU is available for this event. Photography will not be permitted. 



    • Thursday, May 24, 2018
    • Saturday, May 26, 2018
    • University of Maryland

    The Construction History Society of America's 6th Biennial Conference will be hosted by the CHSA and the School of Architecture, Planning & Preservation at the University of Maryland from May 24-26, 2018.  

    The 6th Biennial meeting of the Construction History Society of America will feature research and scholarship from a diverse range of academics and practitioners, focusing generally on the history of building design, fabrication, and construction throughout the Americas over the last five hundred years. Presenters will include scholars, engineers, architects, preservationists, and contractors, who will present on topics ranging from historic building materials to postwar engineering and building science. 

    Keynotes will be presented by Carl Lounsbury, College of William and Mary, and Thomas E. Boothby, Pennsylvania State University. Three to four guided tours led by local expert historians are being organized in the Washington DC metro area with more information to follow. Abstract session themes include: Construction Education and Theory, Fabrication and Use of Materials, Materials and Methods in the United States: 19th Century / 20th Century, Bridge and Vault Construction, Construction of American Landscape Environments and Infrastructure, Management of Institutional Construction, Vernacular Construction Techniques in the Americas, Prefabrication in Mid-Twentieth Century America, Houses and Housing in the United States. 

    On the evening of Thursday, May 24th, a special program celebrating the 100th Anniversary of the Associated General Contractors will be presented with Kenneth D. Durr of History Associates giving the keynote address.

    This conference brings together a diverse group of academics, practitioners, enthusiasts, and interested corporate and government representatives with an interest in this new field of research and follows successful meetings of the CHSA held in Seattle, WA (10th Anniversary Members’ Meeting 2017),  and previous Biennial Meetings:  Austin, TX (5th Biennial 2016), Minneapolis MN (4th Biennial 2014), Cambridge MA (3rd Biennial 2012), Philadelphia PA (2nd Biennial 2010), and Atlanta GA (1st Biennial 2008).

    More information and registration here.    

A note about event payment: 

Our website handles secure credit transactions. However, if you would like to pay in person, please bring cash or a check made payable to APT DC CHAPTER to the event. Payment questions? Email Treasurer@aptdc.org.

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