Member Directory Find a BusinessLocate a local business for all your business needs using the interactive Map or Member Directory below. Return to Listing GAF Materials CorporationGAF.comManufacturer of residential roofing shingles.NewsGAF Makes Major Donation to Support Great Futures505 N. Roeske AvenueMichigan City, IN 46360Map219-872-1111Fax: 219-878-5888EmailManufacturingHome Improvement Sales & Services Chamber Members | Chamber Events Calendar | Member Account | Community Events Calendar | Job Postings & Volunteer Opportunities | Member Promotions | Member News | Request Information Upcoming EventsTue4 Coffee ConnectionsJun 4th @ 8:00 AMWed12 Business After Hours: Purdue University NorthwestJun 12th @ 4:30 PMThu13 Chamber 101: A Virtual Session of Member BenefitsJun 13th @ 9:00 AMWed19 Juneteenth- Office ClosedJun 19th @ 8:00 AMThu27 Chamber Show with WIMS Radio AM 1420Jun 27th @ 8:45 AM 2024 Visionary, Stakeholder, & Leader Member Investors