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FlexBase®Plus 80

Fiberglass/polyester reinforced, SBS modified bitumen base sheet offers tensile strength in excess of 300 pounds per inch in BUR or modified bitumen roofing systems.

The inherent strength provided by the fiberglass/polyester scrim combined with superior tensile strength provides long-term resistance to splits and tears. Additionally, its advanced rubber technology provides increased thermal shock resistance, UV protection, heat resistance, elongation, and low-temperature flexibility, creating a high-performance roofing system.

Product Advantages

Technical Data

  FlexBase Plus 80
*Tensile Strength MD 310 lbf./in. (54.25 kN/m)
XD 310 lbf./in. (54.25 kN/m)
Width 3 ft. 3 in. (1 m)
Length 34 ft. 8 in. (10.57 m)
Weight 60 lbs. (39 kg)
Nominal Thickness 80 mils (2,032 microns)
Net Coverage 100 sq. ft. (9.29 m2)

*Test Method ASTM D 5147 is tested at 2 in./min. @ 73.4 ± 3.6°F
(50 mm/min. @ 23 ± 2°C)


25 rolls/pallet (FlexBase Plus 80)

Approvals that apply to this product

FM Approved logo Miami-Dade County approved logo Intertek Warnock Hersey logo


LEED graphic
FlexBase Plus 80 UL Logo  

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