Why doesn’t SPF roofing need flashing?

Metal flashing, panel fasteners, and other hardware can be costly when installing or repairing a commercial roof. What makes SPF roofing different from virtually any other commercial roofing solution on the market today is that it doesn’t require flashing before application. Spray Polyurethane Foam roofing, or SPF roofing as it’s often called, may be directly applied to any roofing substrate, including masonry. With the easiest installation process in the industry, SPF roofing makes flashing an obsolete expense for commercial roofing.
Application process of SPF roofing
SPF roofing is applied in liquid form with a dual compound mixture of isocyanate and polyol fiber. The liquid SPF bonds with any surface immediately upon contact and begins expanding. SPF’s full expansion process can result in up to thirty times the thickness of the applied liquid. As the chemicals interact and bond, the SPF effectively seals off any exposed crack or opening to make the roof resistant to water, moisture, and storm debris.
With the expansive seal of SPF, it eliminates the need for metal flashing to divert storm water. Additional SPF can be installed if needed to best direct storm water for maximum runoff efficiency. Studies show that SPF can be installed across seams and up adjoining walls or roof equipment piping due to the flexibility of its liquid nature during application. You can learn more about the field performance of SPF roofing here.
If you’re paying for roof flashing, you’re not getting the best roof possible. Our R&A Contracting knows the industry-leading efficiency of SPF roofing. Our clients save thousands of dollars on roofing hardware by choosing to install an SPF roofing solution. You may have questions about SPF regarding costs, installation timeline, and whether your current roof may support an SPF roof. We’re St. Louis’ leader in SPF commercial roofing solutions and we have the expertise and insight to address any questions or concerns you may have.