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 Chamber Show with WIMS Radio AM 1420Mar 28th @ 8:45 AMThu28 LCN Pop-Up at Zorn Brew WorksMar 28th @ 4:30 PMFri29 Good Friday- Office ClosedMar 29th @ 8:00 AMTue2 Coffee ConnectionsApr 2nd @ 8:00 AMThu11 Chamber 101: A Virtual Session of Member BenefitsApr 11th @ 9:00 AM 2024 Visionary, Stakeholder, & Leader Member Investors