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With the adoption of AC438 by ICC Evaluation Services, asphalt roofing shingles can be evaluated against a differing set of physical requirements beyond the traditionally understood ASTM standards. This session provides a comparison between the requirements of the ASTM standards referenced in the building codes and the alternative criteria developed by ICC Evaluation Services. As roofing manufacturers develop new products and submit them for evaluation under the alternative criteria AC438, an understanding of this criteria and the standard ASTM thresholds benefits roofing professionals. Session material is for all sizes residential companies and will be presented at a beginner/intermediate level.

Learning Objectives:

1. Cite the ASTM standards applicable to steep slope asphalt roofing products and understand the key requirements of each standard as they relate to asphalt roofing products

2. Recognize the differences in ICC Evaluation reports issued in accordance with current standards and the alternative Acceptance Criteria AC438

3. Determine the physical property testing required under AC438 4

Speaker(s): Helene Hardy Pierce, Vice President of Technical Services, Codes, and Industry Relations, GAF Materials Corporation; Mark S. Graham, Association Executive Director, Technical Services, NRCA

Mark Graham, Associate Executive Director, Technical Services, NRCA, holds a Bachelor of Science degree in architectural engineering from the Milwaukee School of Engineering. Prior to joining NRCA, he was employed by F.J.A. Christiansen Roofing Co., Inc., in Milwaukee, Wisconsin, and later Wiss, Janney, Elstner Associates, Inc. For NRCA, he is the senior staff person responsible for the association's technical activities and is a contributing editor to Professional Roofing magazine. Mr. Graham is an active member of ASTM, ASHRAE, ICC and NFP

Helene Hardy Pierce, Vice President of Technical Services, Codes, and Industry Relations for GAF Materials Corporation. She received her Bachelors of Science from the Missouri University of Science and Technology. Helene received the ASTM Award of Merit and title of Fellow from ASTM Committee D08 on Roofing, Waterproofing and Bituminous Materials, the James Q. McCawley award from the Midwest Roofing Contractors Association for contributions to the roofing industry, and the title of Fellow of the Institute from the Roof Consultants Institute. Helene has also authored and presented numerous papers for the roofing industry, is a frequent contributor to industry publications, and is an active member of ARMA, ASTM, CEIR, RCI, and SPRI.