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photo of FlexBase E 80/ E 120 dual reinforced, SBS modified bitumen base sheet

FlexBase®E 80

Dual reinforced, SBS modified bitumen base sheet utilizing KEVLAR® fibers used as the initial ply of a BUR or modified bitumen roofing system.

Its advanced rubber technology provides increased thermal shock resistance, UV protection, heat resistance, elongation and low-temperature flexibility. The incorporation of KEVLAR® fibers combined with the fiberglass and polyester reinforcement provides superior resistance to the movement created by today's buildings.

Product Advantages

Technical Data

  FlexBase E 80
*Tensile Strength MD 500 lbf./in. (87.5 kN/m)
XD 550 lbf./in. (96.25 kN/m)
Width 3 ft. 3 in. (1 m)
Length 34 ft. 8 in. (10.57 m)
Weight 65 lbs. (29.48 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

Approvals that apply to this product

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


LEED graphic
FlexBase E 80 UL Logo

KEVLAR® is a registered trademark of E.I. du Pont de Nemours and Company

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