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1-800 National® Construction Services
 

Have a question? Call our experts at 1-800-NATIONAL® for help with your gypsum-based material inquiries.

A free phone call from anywhere in the U.S. and Canada puts you directly in touch with National Gypsum's database of current technical information.

Have a unique situation or application involving gypsum-based materials?

Call 1-800-NATIONAL (1-800-628-4662),
8:00 a.m. - 4:45 p.m. EST,
Monday-Friday, or E-Mail Your Questions.

Whether it's a question about specifications, code regulations, product usage or installation, the 1-800-NATIONAL Construction Services hotline offers help from these experts:

Mark Chapman, CSI
Mark, team leader within the 1-800-NATIONAL Construction Services Department, came from our Research Center where he spent years developing and testing National Gypsum construction systems. As a Research Engineer, he has extensive knowledge in the structural, fire and sound characteristics of our products and hands-on experience in both residential and commercial construction. With over 30 years of construction expertise, Mark also has an in-depth understanding of plaster products and their applications.

Jim Farrell
Jim came to 1-800 NATIONAL with over 20 years of construction experience as a site and project manager in various residential and commercial projects including Class A commercial, high and mid-rise construction, healthcare facilities, mixed-use facilities, single family residential, multi-family and senior living communities. His knowledge as a GC/owner's representative brings extensive planning, pre-construction, design, construction and project completion experience to the team. Jim has a degree in Structural Design and Construction Engineering/Construction Management.

Sam Halverson
Sam brings 12 years of architectural experience to the 1-800 NATIONAL Construction Services Department. He's worked on developing projects from conception through their final construction. Sam has extensive client management experience as it relates to project schedules, budgets, drawings, permits, bids and specifications. Additionally, he is extremely talented as the creator and manager of BIM technology. Sam holds a degree in Architecture.

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