Tape Types for Sealed Roof Deck Systems
From The FORTIFIED Factor by Knockout Inspections
March 27, 2026 · 19 min · Episode 67
About this episode
This episode discusses the importance of tape types used in FORTIFIED™ Roof systems and their impact on performance against water intrusion.
In this episode of The FORTIFIED Factor , AI Experts (informed by Knockout Inspections) break down one of the most important—but often overlooked—components of a FORTIFIED™ Roof system : the tape used to seal roof deck seams. Not all tapes are created equal. Choosing the right material can mean the difference between a home that withstands wind-driven rain—and one that suffers costly water intrusion. Drawing from official FORTIFIED engineering guidance and IBHS resources, this episode covers: The two approved tape standards for sealed roof decks: ASTM D1970 (modified bitumen) AAMA 711-13 Level 3 (flexible flashing tapes) Why proper adhesion (no wrinkles, no voids) is critical to performance How OSB roof decking can impact tape adhesion—and when primers are required The three main tape types homeowners and contractors should understand: Modified Bitumen Butyl Acrylic Key differences in temperature performance, flexibility, and durability Installation best practices to ensure your sealed roof deck actually performs during a storm You’ll also learn why pressure-sensitive adhesives depend on proper installation conditions—and how small mistakes can compromise your entire roofing…
Topics covered
- roofing
- construction materials
- home improvement
- water intrusion prevention
- adhesion techniques
- FORTIFIED standards
Keywords
- roof deck
- tape standards
- adhesion
- water intrusion
- roof replacement
- FORTIFIED upgrade
Mentioned in this episode
Organizations: Knockout Inspections, IBHS
Products: FORTIFIED™ Roof system, ASTM D1970, AAMA 711-13 Level 3, Modified Bitumen, Butyl, Acrylic
More episodes of The FORTIFIED Factor
- Checklist Review Part 2: Silver & Gold · May 22, 2026 · 26 min
- Checklist Review Part 1: Roof · May 15, 2026 · 21 min
- Flashing Guidelines for Steep-Sloped Roofs · May 1, 2026 · 23 min
- The 2025 Roof Repair Checklist · April 24, 2026 · 19 min
- Supplemental Spray Foam Attachment Requirements · April 17, 2026 · 21 min
- Wood Shake and Shingle Sealed Roof Deck Options · April 10, 2026 · 21 min
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