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  Johns Manville   Commerical Industrial Roofing Systems\Roofing Accessories  

Roofing Accessories - Page 5

   

Commerical Industrial Roofing Systems\Roofing Accessories

jmlogo.jpg (5180 bytes) Roofing Accessories
Expand-O-Flash®
Roof Expansion Joint Covers

 

Each Expand-O-Flash style is made with a combination of proven materials.


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Flexible Membrane Cover

  • Type E–60 mil EPDM sheet –white or black (white is premium priced)
  • Type N–60 mil Neoprene sheet –black
    •
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Flange Metal (4" wide)
  • Galvanized Steel, 26 ga.
  • Stainless Steel, .018"
  • Aluminum, .032"
  • Copper, 16 oz.
  • Others available

Support Foam

  • Closed cell foam, k factor = .25 at ambient
  • Thickness varies from 3 /8" to 3 /4" depending on bellows width

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Expansion joint detail for 1" joint

In order to provide adequate clearance between metal flanges and bellows for a 1 inch expansion joint, a space of at least 2 inches should be left between curbs or curb and wall.

Technical Service 1-800-445-1500



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