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Fourth International Symposium on Roofing Technology

The Fourth International Symposium on Roofing Technology was held Sept. 17-19, 1999, in Gaithersburg, Md. The following are papers that were presented during the conference and their authors' names.

Single-layer Roofing

• "Performance of tape-bonded seams of EPDM membranes: The effect of load on peel-creep," Walter J. Rossiter, Jr., Nation Institute of Standards and Technology, United States
  
  
• "Longevity and ecology of polyolefin roof membranes," Hans-Rudolf Beer, Sarnafil International, Switzerland
  
  
• "Field evaluation and laboratory testing of PVC roof systems," Jim D. Koontz, Jim D. Koontz & Associates, United States
  
  
• "Evaluation and qualification of tape adhesive for splicing EPDM membrane," John W. Fieldhouse, Firestone Building Products, United States

Service Life Evaluation

• "On investigating the mechanism of weathering of chlorosulfonated polyethylene roofing and exploring maintenance techniques," William A. Kirn, The Rohm and Haas Company, United States
  
  
• "Service life prediction of roof systems by reliability-based analysis," Brian Kyle, Public Works and Government Services, Canada
  
  
• "Using thermoanalytical techniques to characterize roof membrane materials," Ralph Paroli, National Research Council of Canada, Canada
  
  
• "Natural vs. artificial aging: Use of diffusion theory to model asphalt and fiberglass-reinforced shingle performance," Louis Terrenzio, CertainTeed Corp., United States

Technology Review I

• "Practical experiences with bituminous low-slope roofs in cold climates," Robert Booth, Hansed Booth Inc., Canada
  
  
• "The future of roofing coatings," Donald Portfolio, The Roof Coatings Manufacturers Association, United States
  
  
• "Practical experiences in design, application and field performance," Edward Litow, Kleinfeldt Consultants Limited, Canada

Asphalt Shingles

• "How advances in algae-resistant roofing address the growing roof algae problem," Jeffry Jacobs, 3M Co., United States
  
  
• "The APT model for assessment of prospective shingle performance test methods," Aaron Phillips, TAMKO Roofing Products Inc., United States
  
  
• "The use of fly ash in the manufacture of asphalt shingles," Donald Shaw, JTM Industries Inc., United States

Low-Slope Roof System Performance

• "The relative durability of low-slope roofing," Carl Cash, Simpson Gumpertz & Heger Inc., United States
  
  
• "Historical warranty repair cost as a measure of long-term roof system performance," James Hoff, Firestone Building Products Co., United States
  
  
• "A documented historical performance of roofing assemblies in the United States 1975-1996," Kenneth Schneider, Jr., Roofing Communications Network, United States

Metal Roofing

• "Cylinderical shell roofs made of corrugated metal sheets," Mabil El-Atrouzy, Ain Shams University, Egypt
  
  
• "Laboratory testing for low-slope standing seam metal roof application," Larry Meyers, Wiss, Janney, Elstner Associates Inc., United States
  
  
• "Electric heating systems for combating icing problems on metal roofs," James Buska, CRREL, United States

Wind Engineering

• "Investigation of chamber size for uplift performance testing of single-ply roof systems," David Prevatt, Clemson University, United States
  
  
• "A new facility for dynamic wind performance evaluation of roofing systems," A. Baskaran, National Research Council, Canada
  
  
• "ARMA wind uplift load model for assessing asphalt shingle performance," Joe Jones, Asphalt Roofing Manufacturers Association, United States

Practice and Design I

• "Re-Covers: Reroofing by superimposing new roof systems over existing—A dissenting opinion," Ladislav Jerga, WeatherTech Consultants Inc., United States
  
  
• "The national archives building roof in Gatineau, Quebec, Canada," Michael Sommerstein, VICWEST, Canada
  
  
• "The membrane roof: The original air barrier," Douglas Fishburn, Fishburn Roofing Sciences Group, Canada

Fire, Hail and Earthquake

• "Hail damage to roofing: Assessment and classification," William Cullen, NRCA, United States
  
  
• "Hail resistance test of sprayed polyurethane foam (SPF) roof systems," Dean Kashiwagi, Arizona State University, United States
  
  
• "Damage to membrane roof systems caused by the 1995 Hyougoken-Nanbu earthquake," Kyoji Tanaka, Toyko Institute of Technology, Japan
  
  
• "Results of an interlaboratory test program on a new fire resistance test for flexible roofing sheets," Nico Hendriks, Eindhove University of Technology, the Netherlands

In-Service Performance

• "Evaluation of changes in roofing materials as a result of long-term exposure," Moshe Puterman, National Building Research Institute, Israel
  
  
• "Mechanical performance of new and naturally weathered bituminous and synthetic single-ply roofing membranes," Ertan Ozkan, Istanbul Technical University, Turkey
  
  
• "Performance of polyvinyl chloride (PVC) roofing: Results of a ten-year field study," David Bailey, U.S. Army Construction Engineering Research Labortories, United States
  
  
• "Field and laboratory assessment of SPF roof systems," Rene Dupuis, Structural Research Inc., United States

Test Methods for Bituminous Roofing

• "La qualite de l'adherence des granulats mineraux de la surface de membranes bitumineuses," Jorge Lopes, Laboratorio Nacional de Engenharia Civil, Portugal
  
  
• "An analysis of load-strain properties of SBS modified bitumen roofing membranes," Randy Jolitz, TAMKO Roofing Products Inc., United States
  
  
• "Characterization of asphalt volatility using TGA and iatroscan analyses," James Kuszewski, Firestone Building Products Co., United States

Technology Review II

• "Decline and renewal: Projections for slate roofing in North America," Colin Murphy, Exterior Research & Design, United States
  
  
• "Blistering in built-up roofs: A review," Alison Murray, Queen's University, Canada
  
  
• "Composite carriers for modified bitumen membranes," Tom van Gassel, Akzo Nobel Nonwovens, the Netherlands

Modified Bitumen I

• "Performance of mechanically fastened polymer modified bitumen roof membrane seams subjected to wind uplift," Koichi Oba, Swiss Federal Laboratories for Materials Testing and Research, Switzerland
  
  
• "Membrane immersion test: Modified bitumen membrane asphaltic impregnation evaluation," Philippe Thiriaux, Performance Roof Systems Inc., United States
  
  
• "T-peel test for APP bituminous membrane joints," Piermaria Sartori, ICITE, Italy

Moisture Control

• "Insulation reuse in low-slope roofing in the United States: An industry survey," James Sheahan, J.P. Sheahan Associates, United States
  
  
• "The Pembroke Project: A full-scale demonstration of roof re-cover," John Patten, Benchmark Inc., United States
  
  
• "A new look at moisture control in low-slope roofing," Andre Desjarlais, Building Thermal Envelope Systems and Materials Group, United States

Moisture Detection and Insulation

• "The electrical earth leakage technique for locating holes in roof membranes," Keith Roberts, Rollinson Glanville Consultants, United Kingdom
  
  
• "Freeze-thaw durability of common roof insulations," Wayne Tobiasson, U.S. Army Cold Regions Research and Engineering Laboratory, United States
  
  
• "Two new roof moisture sensor technologies," Stephen Flanders, U.S. Army Cold Regions Research and Engineering Laboratory, United States

Practice and Design II

• "Application of PVC membrane on pitched roofs for museum roof gardens," Katsuyoshi Nagatsuma, Hitachi Cable Co., Japan
  
  
• "Extensive green roofs/La toiture avec vegetalisation extensive," Andre Bruder, Soprema, France
  
  
• "The implications of European standardization of waterproofing sheets for the roofing industry," Jim Hooker, BFRC Services, England

Modeling of Moisture Control

• "A mathematical analysis of moisture and heat transfer in the roof cavities of manufactured housing," Douglas Burch, National Institute of Standards and Technology, United States
  
  
• "A detailed computer analysis of the moisture performance of roof constructions in the U.S. Doe Moisture Control Handbook," George Tsongas, Portland State University, United States
  
  
• "The performance of unventilated roof tile underlays," Erik Brandt, Danish Building Research Institute, Denmark

Modified Bitumen II

• "Optimal design of APP modified bitumen binders for roofing applications use of experimental design techniques," Wim Teugels, NYNAS NV., Belgium
  
  
• "A new type of SBS polymer with improved processability and durability (IPD)," G.W.J. Heimerikx, Shell International Chemicals B.V., the Netherlands
  
  
• "Durability of two-ply SBS modified bitumen roofing membranes: 10-year performance results," Claude Duchesne, Siplast, United States
  
  
• "Full-scale dimensional stability testing for modified bitumen membranes," Patrick Cogneau, Performance Roof Systems, United States

If you have questions about conference or symposia proceedings not available from NRCA, contact NRCA's Technical Services Section at (847) 299-9070.