SPF+ 3.0 HFO is a sprayed-in-place, nominal 70 psi compressive strength, rigid, HFO-blown, closed-cell spray polyurethane foam (SPF) roofing system. This two-component SPF consists of SPF+ 3.0 HFO B component resin and SPF ISO A component. SPF+ 3.0 HFO provides an R-value of 6.7 per inch and a continuous insulation without thermal breaks. SPF+ 3.0 HFO roofing systems provide excellent wind uplift resistance, are self-flashing, seamless, and the closed-cell nature provides a durable, leak-resistant roofing system.