Liberty™ MA
Mechanically Attached Base Sheet
Description
Liberty™ MA Mechanically Attached Base Sheet is a durable, modified
bitumen membrane designed and manufactured to meet industry and code requirements.
The product is designed for use as a base membrane for self-adhered roof systems
and is reinforced with mat, which is coated with a polymer-modified asphalt. Liberty™
MA Mechanically Attached Base Sheet is approved with a proprietary film surface
that assures a good bond for self-adhered membranes. System guarantees are available
for up to 20 years. Liberty™ Systems are applied without torches,
open flames, hot asphalt, or messy solvent-based adhesives and are suitable for
primed for many substrates. Technical and Sales information can be obtained through
the GAFMC Contractor Services Hotline, (800) 766-3411.
Application
Liberty™ MA Mechanically Attached Base Sheet should be applied
to a plywood deck or other nailable surfaces and mechanically fastened using Drill•Tec™
Screws according to applicable specifications.
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Applicable Standards
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Meets ASTM D6163, Type I
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FM Approved
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ICC Pending
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Miami-Dade County Product Control Approval
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UL/ULc Listed
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Product Specifications (Nominal)
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Roll Size
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2 squares (216.6 gross sq. ft.) (20.1 m2)
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Roll Length
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66' (20.1 m)
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Roll Width
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39.375" (1.0 m)
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Approx. Roll Weight
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82 lbs (37.2 kg)
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Product Thickness
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0.068" (1.73 mm)
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This product meets or exceeds the following ASTM D6163, Type I, minimum requirements:
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Property
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Test Method
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Value<
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Tensile Strength @ 0°F (min), lbf/in
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ASTM D5147
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70
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Elongation @ 0°F (min), %
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ASTM D5147
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1
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Low Temperature Flexibility (max), °F
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ASTM D5147
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0
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Tear Strength (min), lbf
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ASTM D5147
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35
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Dimensional Stability, (max) %
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ASTM D5147
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0.5
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Data reported based on available independent and in-house resources. GAFMC reserves
the right to change or modify, at its discretion, and without prior notice, any
of the information, requirements, specifications or policies contained in this document.
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