EPDM is one of the most proven and durable commercial flat roofing membranes available — with a 40+ year track record on South Texas commercial and industrial buildings.
EPDM (ethylene propylene diene monomer) is a synthetic rubber membrane that has been one of the most widely installed commercial flat roofing systems in North America for over five decades. Its exceptional UV and ozone resistance make it particularly well-suited to the intense South Texas sun, and its flexibility in cold temperatures (though rarely an issue in the RGV) makes it one of the most durable membranes available for low-slope commercial applications.
EPDM is typically specified as a dark (black) membrane, which absorbs heat and can increase cooling loads compared to white TPO — a consideration in the South Texas climate. However, EPDM is available in white formulations, and its adhesion and seaming characteristics make it the preferred system for certain building geometries and detail conditions where TPO or PVC would present installation challenges. American Contracting USA is a certified EPDM installer through Carlisle SynTec and Firestone Building Products.
| Membrane Material | Synthetic rubber — EPDM |
| Thickness | 60-mil and 90-mil available for commercial applications |
| Service Life | 25-40+ years with proper installation |
| Color | Black (standard) or White (for cool roof applications) |
| Best Applications | Industrial, warehouses, low-slope commercial, complex geometry roofs |
| UV/Ozone Resistance | Excellent — proven performance under South Texas sun exposure |
| Seaming | Adhesive tape or liquid-applied seam adhesive — precision installation required |
72,000 SF phased roof replacement on active hospital — EPDM and TPO systems evaluated and specified for different sections of the facility.
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