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 EventsThu28 Thanksgiving Day- Office ClosedNov 28th @ 8:00 AMFri29 Observance of Thanksgiving- Office ClosedNov 29th @ 8:00 AMTue3 Coffee ConnectionsDec 3rd @ 8:00 AMThu12 Chamber 101: A Virtual Session of Member BenefitsDec 12th @ 9:00 AMThu12 Holiday Chamber Party at Horizon BankDec 12th @ 5:30 PM 2024 Visionary, Stakeholder, & Leader Member Investors