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 a.m. - 4:45 p.m. EST,
Monday-Friday, or e-mail at techservice@nationalgypsum.com.

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

Mark Chapman, CSI
Mark came to 1-800-NATIONAL^® from our Research Center where he spent years developing and testing National Gypsum construction systems. As a Research Engineer, Mark has extensive knowledge in the structural, fire and sound characteristics of our products and hands-on experience in commercial and multi-family construction.

Tony Fuller, CSI
Tony came to 1-800 NATIONAL^® with 18 years experience developing new products for contractors and other construction professionals in the hand and power tool industry. He has extensive experience in a wide variety of building materials and construction techniques including jobsite experience in both residential and commercial construction.

Lisa Roberts, CSI
Lisa entered the building materials industry as a trader for a major buy group where she gained extensive knowledge in gypsum, insulation, foam insulation, cement and other building products. As a former National Gypsum customer service representative, Lisa has been instrumental in product training for new employees.

For more information on 1-800-NATIONAL^®, click here (PDF 228 Kb).