Mark Joy, Working as a manager in Crown Roofing... Crown Industrial Roofing is among Toronto’s leading commercial and industrial roofing companies. We specialize in commercial and industrial roofing including Built-Up Roofing (B.U.R), Ethylene Propylene Diene Monomer (EPDM), and Thermoplastic Polyolefin (TPO).

https://crownroofing.ca/flat-roof-replacement/