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All Categories > Expansion Joint / Specialty Roof Systems > Expansion Joint & Seismic Joint Systems > Johns Manville > Expand-O-Flash Expansion Joint Cover  
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Expand-O-Flash Expansion Joint Cover


Description
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. Each Expand-O-Flash cover is a combination of a flexible rubber membrane, supported by a closed cell foam to form flexible bellows, with two metal flanges, adhesively and mechanically combined to the bellows by a patented bifurcation process. As expansion joints move, the greatest stress occurs in the cover at the point where expansion joints intersect, cross or change directions. Factory-fabricated intersections are designed for maximum flexibility and are produced using special fabrication techniques to ensure watertight, clean seam lines. Close factory tolerance and quality control assures high yield performance. 

Use

Designed to manage the movement of commercial and industrial building roof systems: thermal, settlement, new and existing junctions, differing roof deck materials or direction and seismic movement. Compatible with single ply and bituminous roof membranes.


Item #

Product Name

Packaging

Unit Quantity

MVEJ504.LF - Galvanized Expand-O-Flash Expansion Joint Cover - 4" 50 LF Roll Per LF in 50' Roll
MVEJ506.LF - Galvanized Expand-O-Flash Expansion Joint Cover - 6" 50 LF Roll Per LF in 50' Roll
MVEJ508.LF - Galvanized Expand-O-Flash Expansion Joint Cover - 8" 50 LF Roll Per LF in 50' Roll
Please call for additional sizes. N/A N/A N/A

 DOWNLOADS 

Johns Manville Expand-O-Flash Joint Cover Data Sheet

Johns Manville MSDS

Manville EOF Instructions
(PDF, 171KB)

Manville EOF Short Form Spec
(PDF, 85KB)

Manville SpecialtyRoofingProducts
(PDF, 4004KB)