FRANKLIN JOHNSTON, P.E.

BUILDING DESIGN GROUP


CMR-24® Roof System
Weathertightness, energy efficiency and attractive appearance

A.  The CMR-24® roof system uses the same exclusive panel seaming process and clip system used on the MR-24® roof system.  The panel seam is permanently roll formed for weathertightness and the clip holds the panels securely to the structural system while allowing the entire roof to move like a single membrane.  MR-24 roof system is available in 26 and 24 gage aluminum/zinc coated steel.  The coating is Butler-Cote® 500 FP (a fluoropolymer containing  70%
Kynar 500®/Hylar 5000™ resin).

B.  The steel liner panel is corrugated for added strength and delivers a uniform, attractive appearance to the underside of the roof.  The liner also acts as a diaphragm to transfer loads through the roof system.  Available galvanized or painted, the liner panel can be easily cleaned.

C.  A vapor retarder keeps the insulation material joints dry and eliminates condensation

from forming under the roof panels.

D.  Superior quality rigid board insulation is available in a variety of thicknesses and insulation values.  The CMR-24 system can deliver tested U-values as low as .05.

E.  The bearing plate evenly distributes the weight of the roof panels and clips to the supporting structural steel.

 

The CMR-24 roof system has a U.L.Class 90 wind uplift rating and a Factory Mutual Class 1 Fire rating.

F.  MR-24 Clip

G.  MR-24 roof panel

Kynar 500® is a registered trademark of Elf Atochem North America, Inc.  Hylar 500® is a trademark of Ausimont USA, Inc.

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P.O. Box 291562
Kerrville, Texas 78029-1562
Ph: 830.896.2533
Fax: 830.257.5628
E-mail:  Franklin Johnston, P.E.

© 2000 Franklin Johnston
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