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DURO-GUARD REWALL HALFBACK ROOF BOARD
Description:
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Duro-Guard ReWall HalfBack (HB) is a unique
composite panel made of 100% recycled material.
The content is shredded and compressed, giving the
user a sustainable and superior performing product.
ReWall HB is made of a water resistant core and
surfaced either with paper or coated fiberglass facer.
Custom size boards are available upon request.

 Maximum LEED Points - Up to 100% Post-
Consumer Upcycled Core
 Maximum Bond in Adhered Systems
Flat Panels:
 Class 2 Vapor Retarder
 Available sizes:
 Moisture Durable, Non-Soluble Core
o 4 ft. x 8 ft.
 Hail Resistant
o 4 ft. x 4 ft.
 Will not Crack or Disintegrate
o Thickness: 1/2 inch.
 Superior R-Value

 Excellent Sound Insulation Properties

 Lightweight
TABLE 1. PHYSICAL PROPERTIES
 UL class A assemblies
Flexural Strength, ASTM C 473 78 lbf max. load
 Available in Custom Sizes Parallel Method B
 Cover Roofs Easier, Faster, Cleaner, and Flute Spanability ASTM E 661 10.5 inches
Healthier
Permeance ASTM E 96 < 1.0 perms
 Refer to Table 1 for physical properties
Mold Resistance ASTM D 3273 10
Recommended Uses:
Compressive
 Overlayment/Cover Board Strength ASTM C 473 3,900 psi

 Underlayment Toxicity No VOCs
 Reroof/Recover Board
Flame Spread ASTM E 108 Class A
 Separator Board
Weight 1.8 lbs./sq. ft.
 Vapor Barrier Substrate

 Substrate for Self-Adhered Systems

www.duro-last.com 1 of 2 800-248-0280
Duro-Last, Duro-Guard and “World’s Best Roof” are registered trademarks owned by Duro-Last, Inc.
ReWall is a registered trademark owned by The ReWall Company, LLC.
Created: 03/18/2017