The North American Conference on Roofing Technology was held Sept. 16-17, 1999, in Toronto, Ontario, Canada. The following are papers that were presented during the conference and their authors' names.
"Contractor Performance and Certification Programs: Do They Result in Better Roofs?"
Kennedy and Jeff Manser, Evans Service Co. Inc., Elmira, N.Y., U.S.A.; and Bill Fischer, CFE Inc., Elmira, NewYork, U.S.A.
"A Comparison of Three Different Technologies for Performing Nondestructive Roof Moisture Survey"
Jack Robinson, RRC, NRCA, Rosemont, Ill, U.S.A.; Dane Bradford, Bradford Roofing and Insulation Co., Billings, Mont., U.S.A.; and Jeffrey Mitchell, RRC and Paul Majkowski, P.E., RRC, Professional Service Industries Inc., Detroit, Mich., U.S.A.
"Effects of Welding Parameters on Seam Strength of Thermoplastic Polyolefin (TPO) Roofing Membranes"
T.R. Simmons, TRS Consulting, Iowa City, Iowa, U.S.A.; D. Runyan, Dryspace, Inc., Cedar Rapids, Mich., U.S.A.; K.K.Y. Liu, R.M. Paroli, A.H. Delgado and J.D. Irwin, National Research Council of Canada, Institute for Research in Construction, Montreal Road, Ottawa, Canada