Member Directory Find a BusinessLocate a local business for all your business needs using the interactive Map or Member Directory below. Return to Listing ShareTweetGAF Materials CorporationGAF.com505 N. Roeske AvenueMichigan City, IN 46360219-872-1111Fax: 219-878-5888EmailAboutManufacturer of residential roofing shingles.NewsGAF Makes Major Donation to Support Great FuturesManufacturing, Home 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