Tri State Foam

EPS Roofing Insulation

Bur Over Metal Deck Good insulation value, low cost; meets most fire codes and ratings. May use EPS/fiberboard composite, or mop and flop fiberboard or perlite to EPS with asphalt. Thermal barrier such as perlite or gypsum board may be factory laminated or attached with mechanical fasteners, asphalt or adhesive. Use flat or tapered EPS.

Adhered Single Ply Membrane Re-Roof Adds high insulation but little weight to the existing roof. Mechanical fasteners penetrate EPS and attach to deck. Stone ballast may be used if weight is not a limitation. Some membranes require barrier sheet separation from EPS

Ballasted Membrane over Metal Deck Long-term performance in a light weight system. Span deck flutes and meet code/insurance requirements with specified underlayment board. Flat or tapered EPS insulation panels are loose-laid under membrane. Membrane can also be fully adhered or mechanically fastened for a smooth exposed surface. Some membranes require barrier sheet separations from EPS.

Tapered EPS for New Roof or Re-Roof Eliminates ponding; provides positive drainage in new or retrofit roofs. EPS insulation manufactured with minimum slope or 1/8' per foot. Taped overlayment assures surface continuity. Vapor retarder optional depending on environmental conditions