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 EventsWed15 Board MeetingMay 15th @ 8:00 AMWed22 8th Annual Michigan City/ La Porte County Job FairMay 22nd @ 2:00 PMThu23 Chamber Show with WIMS Radio AM 1420May 23rd @ 8:45 AMThu23 JOYRide Ribbon Cutting!May 23rd @ 4:00 PMFri24 Community Connections Luncheon-Economic Development UpdateMay 24th @ 11:30 AM 2024 Visionary, Stakeholder, & Leader Member Investors