Update on SPRAT Level 3 Certifications

Congratulations to Kevin Dalton on becoming our newest SPRAT Level 3 technician! In just a short couple of years, Kevin has logged over 1,000 hours on rope and learned the complex skills required of Level 3 technicians.

Last week, Keith Luscinski and Kevin traveled to Vertical Rescue Solutions in Denver for four days of rope access training, followed by a rigorous 8-hour-long evaluation. Both passing with flying colors, Keith renewed his Level 3 certification for another 3 years and Kevin moved up from his previous Level 2 certification. Four of Vertical Access’ seven technicians are now certified to SPRAT’s highest level.

Kevin Dalton, Keith Luscinski (L-R)

Kevin Dalton, Keith Luscinski (L-R)

The SPRAT Level 3 certification is difficult to achieve, requiring over 1,000 hours on rope, knowledge of complex rope systems and the ability to rescue an incapacitated coworker from any conceivable rope access system. The full-day evaluation consists of three parts: a written test, an oral exam and a practical evaluation. The written test takes about an hour and covers one’s knowledge of rope access regulations and standards. During the oral exam, candidates are grilled on their equipment and job-site safety procedures.

The practical evaluation takes up the remainder of the test day, and is an exhausting process for Level 3 candidates. Level 3 candidates must hoist a 200-pound “casualty” and move it through various rope access obstacles. Anywhere that a Level 1 technician could conceivably get himself stuck is somewhere that a Level 3 technician has to be able to perform a rescue. The practical evaluation also tests candidates’ ability to build mechanical advantage systems, tie a plethora of knots, construct anchors and use conventional fall protection devices.

Keith and Kevin enjoyed having a week to hone their skills but are now appreciating a few days in the office to recover from a strenuous week.

Next Session: SE University Dec 11- Design of Maintenance Access and Fall Protection Systems for New and Existing Buildings

Ideally planned for and designed into a building, access systems for ease of continued maintenance are often value-engineered out of important projects, leading to interesting access challenges. Engineers must work with clients to engineer a range of potential solutions that are then evaluated for cost, ease of use and other parameters so that in-house and contracted maintenance can be completed safely and efficiently.

Applicable state and federal standards will be reviewed and case studies, including Islip Courthouse, New York Times Building Mast and the New York Public Library, will be discussed.

Speaker: Kelly Streeter, PE, Vertical Access

About SE University

SE University is a subscription based continuing education resource for structural engineers which reduces  continuing education costs while providing content that helps increase  productivity and profit and reduce risk. SE University delivers 12-18 web based seminars per year on a wide variety of topics impacting structural engineers.

Learn more.

APT 2013 NYC – The Guastavino Vault Workshop

During the recent Association for Preservation Technology (APT) conference — APT NYC 2013 Preserving the Metropolis — Kent Diebolt, Kevin Dalton and Berta de Miguel, from Vertical Access, organized a Hands-on Construction of “Guastavino” Thin Tile Vaults workshop. Other faculty fellows worked in conjunction with VA members: Benjamín Ibarra, Assistant Professor of Architecure UT Austin, Mallory Taub, an Energy Specialist at Arup in San Francisco, David López López, Architect and PhD candidate in the Block Research Group at ETH Zurich, Switzerland and Marta Domènech Rodríguez, PhD candidate in the Architectural Design Department at Technical University of Catalonia (UPC), Spain. The team was assisted by Ken and David Follet, from Precon Logstrat, LLC, “consultants with tools”.vault-dwgs

The workshop consisted of building two small tiled vaults: a groin vault and a barrel vault with lunettes. The vaults, of approximately 6×6 feet were built with tiles measuring 7 3/8″ x 3 3/4″ x 5/8″ donated by Boston Valley Terracotta.

The venue for the event was the atelier of Ottavino Stone Corporation, kindly donated by that same corporation, which is celebrating their centennial this year. Additional funding came from the National Center for Preservation Training and Technology through APTI and Vertical Access LLC. We cannot thank our sponsors enough for their support!

The attendees were an interesting group of 21 people from different nationalities and backgrounds such as architects, material specialists, engineers, architectural conservators, preservationists and project managers from companies and organizations such as VanNostrad Architects, UNESCO, Consigli Construction, Superstructures, Built Environment Evolution, Washington National Cathedral, Williamsburg Preservation Tec, Murray Engineering, Alternativist/Urban Earth, Evergreene Architectural Arts, Old Structures Engineering, Bennett Preservation Engineering, Atkinson-Noland & Associates, FGMDA Fournier Gersovitz Moss Drolet & Associates, Goldsmith Borgal & Company Architects, Heritage Building Conservator, Robert Silman Associates, Building Conservation Associates and and Wiss, Janney, Elstner Associates.

The workshop lasted two full days. During the fist day, the forms for the arches were set in place, plumbed and fixed. Next, the tiles of the arches were set with plaster of Paris for the first layer, and mortar cement on the second and third layers. Once the arches were completed, the webs of the vaults started to close the vaults from the arches to the center.

The first layer was set with plaster of Paris due to the rapid setting time (10-15 seconds approximately). During the second day, once the first layer was finished, the attendees, divided in two teams, started and finished the second layer, set up with mortar cement, which confers strength to the structure.

By the end of the second day, everybody took turns standing on the vaults. We all learned a lot from each other and gained an appreciation for the skill that it took to build these full-scale vaults. Finally, and most importantly, we all had a wonderful time.IMGP9925

 

> Watch a video news story about Rafael Guastavino that includes time-lapse footage from this workshop and interviews with Berta de Miguel and Kent Diebolt. The piece was produced by RTVE, a public broadcasting station from Spain.

A portion of our annual contribution to 1% for the Planet helped support this event. Read a short post about how VA got involved with One Percent Print.

The Cathedral: The Next 100, or 5000, Years

A structure planned to “stand with practically no visible sign of change for 5,000 years.”  That assessment, by Perry Borchers, was published in the Ohio State Engineer journal in 1940, soon after west façade of The Cathedral Church of Saint John the Divine was completed and just before the entire length of the Cathedral was consecrated in 1941.[1]  In fact, much of the planned Cathedral structure had not yet been completed at that point, including the two towers on the west side, the north and south transepts and the spire above the crossing.  However, eight days after the Cathedral was opened for the first time from the main portal on the west to the end of the apse on the east, and almost fifty years after construction of the Cathedral began in 1892, the United States entered World War II and work on the Cathedral came to a halt.  Construction resumed in the 1970s, and in the 1980s about fifty feet of height was added to the south tower.

The Cathedral, situated in Morningside Heights in Manhattan on land acquired by the Episcopal Diocese in 1887, was originally designed by George Lewis Heins and Christopher Grant LaFarge in 1888.  Construction of the apse began in 1892 and the large central dome, constructed by the Guastavino Company, was completed in 1909: the largest dome ever built by the firm.  After Heins died, Ralph Adams Cram was hired in 1911 to replace LaFarge as the architect of the Cathedral.  Construction of the nave, which Cram designed in a Gothic revival style, began in 1916 with the first finish stone on the south façade laid in 1925.  Cram also designed the west façade of the Cathedral with its flanking towers and the gothic ornamentation for the original apse.  The exterior cladding of the nave and towers is granite, with limestone used in the interior, the tracery of the stained glass windows at the nave and clerestory, and for trim and figurative carvings at the west facade.

Although the Cathedral is by anyone’s estimation a grand and magnificent structure, Borchers’ prediction that it remain unchanged for 5,000 years was a bit of hyperbole.  Like any building, even one constructed by the finest craftsmen of the day using durable materials and proven engineering systems, the Cathedral is subject to the same deleterious effects of water, fire and earth movement as any other building.  In fact, all of these forces have affected the structure significantly over the past 100 years.

A structure such as the Cathedral requires constant maintenance, upkeep and attention.  Currently the Cathedral of St. John the Divine is undertaking a study of the entire structure.  The design team is led by structural engineer Robert Silman Associates and includes Building Conservation Associates and Vertical Access.  As part of the study, the team has been performing hands-on investigations of the exterior masonry, interior wall surfaces and ceiling; and evaluation of the condition of the exterior and interior materials and structure.  The information gained from this study will be used to prioritize repair projects and plan for future work on the Cathedral, so that it may retain its magnificence for the next 100, or even 5,000, years.


[1] Perry Borchers, “The Cathedral of St. John the Divine, New York,” Ohio State Engineer, vol. 23, no. 6 (May, 1940, 8-10).

U.S. Capitol Dome to Undergo $60 Million Restoration

The Capitol Dome Will Get A $60 Million Face-Lift, by Eyder Peralta, National Public Radio, October 22, 2013

The U.S. Capitol Dome is about to undergo a $60 million restoration. Construction is scheduled to begin in November and last for two years.

“From a distance the dome looks magnificent, thanks to the hard-work of our employees,” the Architect of the Capitol Stephen T. Ayers says in a statement. “On closer look, under the paint, age and weather have taken its toll and the AOC needs to make repairs to preserve the Dome.”

Ayers says this will be first time the dome will receive a complete makeover since the one it received in 1959 to 1960.

The kind of damage that plagues the Capitol Dome.

The dome was constructed of cast iron more than 150 years ago. As time went on, water infiltrated through pinholes in the Statue of Freedom and through cracks and open joints in the rest of structure, causing rust and claiming more than 100 decorative elements. Currently, the dome has more than 1,000 cracks and deficiencies. These pictures give you an idea of the kind of damage we’re talking about.  *    READ FULL ARTICLE

* Photos in the Architect of the Capitol Flicker gallery are from a condition inspection report performed by Vertical Access. See project profile.

Scaffolding to Cover Capitol Dome, by Brian Williams, NBC Nightly News, October 22, 2013

20 seconds into the video, see footage of Vertical Access team on the dome.

Screen shot of NBC video coverage of U.S. Capitol Dome restoration project includes Vertical Access team performing inspection of conditions.

Screen shot of NBC video coverage of U.S. Capitol Dome restoration project includes Vertical Access team performing inspection of conditions.

Sept 8 – 12 is the Dam Safety 2013 Conference in Providence Rhode Island – Vertical Access at Booth 413

Dam Safety 2013 – September 8-12, 2013
Rhode Island Convention Center, Providence, RI

Dam Safety 2013 is one of the leading conferences in the United States dedicated to dam safety engineering and technology transfer.

Kelly Streeter, PE will be representing Vertical Access at Booth #413 and attending sessions.

About ASDSO
The failure of dams and the great destruction and loss of life failures often cause, is a matter of deep concern to the members of the Association of State Dam Safety Officials (ASDSO). ASDSO is a national non-profit organization serving state dam safety programs and the broader dam safety community, which includes federal dam safety professionals, dam owners and operators, engineering consultants, emergency managers, manufacturers, suppliers, academia, contractors, and others interested in improving dam safety.

source: ASDSO website www.damsafety.org

Under the Dome: Rafael Guastavino’s Life in North Carolina

Listen to Nan Graham’s commentary on WHQR.org about the life of architect Rafael Guastavino in North Carolina, and how he became an “accidental southerner” after constructing arches for the famous Bilmore Mansion.  He would spend the rest of his life living in the Smokey Mountains, during which time he designed the Basilica of St. Lawrence in Asheville – also his final resting place.

Inside dome of the Basilica of St. Lawrence, and final resting place of Raphael Guastavino (d.1908) in Asheville, North Carolina.

Everyday Preservationist Photo Contest | World Monuments Fund

World Monuments Fund invites you to vote for your favorite photo in our Everyday Preservationist Photo Contest.

The photos in this gallery were submitted by photographers of all levels to advocate for everyday preservation. World Monuments Fund sends preservation experts to endangered sites all over the world, but there are things we can do closer to home to help save the world’s most treasured places. Becoming an everyday preservationist is as easy as sharing something special about your hometown, a favorite vacation spot, or someplace you’ve always wanted to visit.

The contest will produce fifteen semi-finalists and five winners. You may vote once in each of five everyday preservation categories:

  • Appreciation
  • Adaptive Reuse
  • Sensitive Urban Development
  • Thoughtful Tourism
  • Traditional Building Materials

TIMELINE

Photo Submission Period: July 1-31
Public Voting Period: July 1-August 15
Judging: August 16-September 1
Winners Announced: September 9

Contest Voting Gallery | World Monuments Fund

Photo submission (Title: Drawing Heritage. Category: Traditional Building Materials) by Berta de Miguel. Photo location: New York Edition (MetLife Building) New York, NY