and rubber membrane, of which EPDM is one type. EPDM (ethylene propylene diene monomer) is a roofing material that is best known for its durability and suitability with flat roofs, so if that's ...

By Tom Schardin, Staff Writer The roof at St. John the Baptist Catholic Church was starting to leak, not to mention the 25-year-old building has had its share of lightning strikes over the years.