Marjam & CertainTeed New Partnership Introducing a new partnership in the Philadelphia market to service your Ceiling Tile & Suspension System needs! Marjam, a leader in the building supply business for 35 years, is excited to announce their alignment with one of the industry’s leading ceiling manufactures.Partnering with CertainTeed, a company committed to producing the highest quality building products for over 100 years, Marjam is positioned to support all of your commercial project needs. Sending User Review 0 (0 votes)