EPDM (rubber based single-ply membrane)
Go over with fully adhered system (Masterman’s)
Complete tear-off and re-roof with fully adhered system (Decathalon Sports)
New construction with ballasted system (Kohl’s)
TPO (plastic based single-ply membrane)
New construction fully adhered system (Shaw’s Supermarket)
New construction mechanically fastened system (Lowe’s)
Copper Work
Copper Work – (60 Aberdeen St in Cambridge)
www.spri.org/directory/definitions.htm