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 EventsTue23 LCN Etiquette DinnerApr 23rd @ 5:00 PMWed24 MCHS Career FairApr 24th @ 9:00 AMThu25 Chamber Show with WIMS Radio AM 1420Apr 25th @ 8:45 AMWed8 LCN Pop-Up at Leeds Public HouseMay 8th @ 4:30 PMWed15 Board MeetingMay 15th @ 8:00 AM 2024 Visionary, Stakeholder, & Leader Member Investors