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Expansion Joint Covers

Flexible, weatherproof exterior closures designed to accommodate openings between adjoining parts of a structure. They manage movement caused by thermal expansion, settlement and the junctions of differing deck materials. They qualify for a Johns Manville Peak Advantage® Guarantee.

If you are looking for product installation details, view our Specialty Roofing Product Details page.

You can also use our Expansion Joint Covers Reference Guide to learn more about which product will work best for your roofing system.

Expansion Joint Covers

Expand-O-Flash® Expansion Joint Cover

Expand-O-Flash® expansion joint covers are flexible, weatherproof, exterior covers for expansion joint openings and are an effective, flexible closure for a wide variety of standard and special applications. (more ...)

Expand-O-Flash® Expansion Joint Cover: PVC EJ/WC

Expand-O-Flash® Style PVC EJ/WC consists of foam supported bellows with integrally attached nonmetallic nailing flanges over which is attached a reinforced PVC cover of sufficient width to weld the entire joint assembly to the PVC membrane.

Nailing flanges are 13/8" (3. (more ...)

Expand-O-Gard® Vertical Expansion Joint Cover

Expand-O-Gard® expansion joints are flexible waterproof closures for vertical building walls designed to accommodate movement between building components caused by thermal, settlement, wind, flex and seismic forces. (more ...)

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. (more ...)

Product & Sales Information: (800) 654-3103