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  GAF Materials Corporation   FlexPly6  

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FlexPly6

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"Now Get Type 6 Performance...With Type 4 Flexibility"

The Truth About "Conventional" Type 6 Felts

Conventional ASTM Type6 felts have long been a "double-edged sword" for roofing contractors andspecifiers...

What’s Good...
· Heavyweight mat
· More asphalt protection
· Stronger and more dimensionally stable than type4 felts
· Long-term manufacturers' guarantees available

The Problems...
· Stiffer than type4 felts
· More difficult to install
· Can cause bridging and voids (see illustration)
·   Labor-intensive

As a result, many contractors and specifiers have avoided conventional Type 6 felts except when the manufacturer required them for a long-term guarantee.

The Problem With
Conventional Type6 Felts

Voids created by "stiff" ply felts are a chronic source of problems for roofing contractors and specifiers. Moisture trapped in the voids can result in blisters membrane failure and, ultimately, leaks in the roofing system.
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The FlexPly6 Breakthrough

Using revolutionary technology, GAF Materials Corporation Engineers developed FlexPly6, the industry’s first flexible Type 6 felt. This patent pending technology allows asphalt coating to be applied to a special, proprietary fiberglass mat without sacrificing the tensile strength or porosity of the finished felt. The result is a premium ply felt with both flexibility and strength—your best choice!

62% More Flexible Than
"Conventional" Type6...
...Without Sacrificing
                 Strength!
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