Episode
Reroofing Over Self-Adhered Membranes
- Podcast
- The FORTIFIED Factor
- Published
- Mar 6, 2026
- Duration seconds
- 1362
- Processing state
not_requested- Canonical source
- https://share.transistor.fm/s/2b243186
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Summary
When it’s time to replace a roof, what happens if the existing roof already has a self-adhered membrane installed on the deck? In this episode of The FORTIFIED Factor , the AI Experts (informed by Knockout Inspections) break down the engineering guidance behind reroofing over self-adhered membranes and what homeowners, contractors, and inspectors need to know to stay FORTIFIED-compliant . Self-adhered polymer-modified bitumen membranes are widely used in the FORTIFIED Roof™ sealed roof deck system because they adhere directly to the roof deck and can remain in place even if the roof covering is lost during severe weather. But that durability can raise an important question: How do you reroof when the membrane is bonded to the decking? In this episode, we cover: Why self-adhered membranes are a powerful defense against wind-driven rain The challenges of removing adhered underlayment during reroofing When installing a second layer of self-adhered membrane is allowed When a two-ply felt sealed roof deck system can be used instead Why closed-cell spray foam full-fill applications are not accepted for this scenario How inspectors verify the condition of the roof deck from the attic The documentation required for a FORTIFIED re-roof project If you’re planning a reroof, working toward a FORTIFIED Home™ designation , or simply want to better understand how resilient roofing systems work, this episode explains the technical bulletin guidance in clear, practical terms. A stronger roof means a stronger home—and better protection when severe weather strikes. Have questions about FORTIFIED roofing or reroofing projects? Contact Knockout Inspections at 855-GO-FOR-KO (855-463-6756) or visit fortifiedhome.com to learn more.