Eternit manufactures construction products such as corrugated roofing , decorative roofing tiles , polyethylene water tanks and drywall construction systems . For 75 years , Eternit has contributed to the country ’ s development , covering the residential and nonresidential markets . The company is an affiliate to the Belgium-based Etex group , a global enterprise with a century-long history of success in 43 countries and more than 17,000 employees . Being part of Etex brings a number of advantages , from working exclusively with quality-certified materials to selecting the best machinery at manufacturing facilities .