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Fire Barrier FS 5800
This partnership combines Expand-O-Flash® by Johns Manville installed over FS5800-F by Thermal Structures, Inc.
Listed below are the key advantages to using FS5800-F enhanced Expand-O-Flash, making our roof expansion joints the clear choice in fire protection.
- Expand-O-Flash
- Included in Johns Manville Roofing Systems Guarantees
- EPDM or Neoprene flexible membrane cover
- Four Flangemetals – galvanized, aluminum, copper, stainless
- Horizontal, vertical, shear movement
- Joint openings up to 30 inches
- Factory fabricated intersections
- Seismic Joint Covers
- FS5800-F
- UL listed for 1 & 2 hourfire rating
- No caulking required
- 50% expansion/ contraction and lateral shear
- Custom sizes
- Meets UBC, BOCA, NFPA, ICBO & SBCC
- ISO 9001 certified
Fire Barrier wall systems are also available, combining JM Expand-O-Gard® with Thermal Structures FS5800-W.
Data Sheets & MSDSs
Fire Barrier FS 5800 Data Sheet (803 KB)
Product Literature
Specialty Roofing Products Catalog (3910 KB)
Technical Resources

