Mac Sheldon is the owner of Sheldon Consulting.  Mac was employed at Demilec for over eleven years and his many positions with them included Director of Training and Industry Communications, its Northwest US Territory Manager, Asia-Pacific International Business Manager and Western Region Manager.  Mac also serves on the Board of Directors of the Spray Polyurethane Alliance (SPFA), the Technical Oversight Committee for SPFA, the Leadership Committee of the Center for Polyurethane Industries (CPI) Spray Foam Coalition (SFC). Mac has an engineering background and has certifications in WUFI, WUFI 2-D, WUFI-Plus, BPI and HERS (RESNET). Mac led the industry in developing the current fire testing protocols for SPF that are installed in attics, crawlspaces and remains active in ICC building code development.