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StressPly® Plus/ Plus FR Mineral

High strength, fiberglass/polyester reinforced, SBS modified roofing membranes designed for long-term performance as the waterproofing and reinforcement layer of a modified bitumen roofing system.

The fiberglass and polyester scrim in these versatile membranes provides over 300 pounds per inch of tensile strength that translates to resistance to splits and tears in the roof system. Its advanced SBS rubber technology provides unmatched low-temperature flexibility, weathering and elastomeric properties. Additionally, the incorporation of recycled content provides an environmentally friendly roofing solution without sacrificing performance. StressPly Plus FR Mineral contains a fire retardant that is added during the manufacturing process with the option to upgrade to our Sunburst minerals.

Product Advantages

Technical Data

 StressPly PlusStressPly Plus FR Mineral
*Tensile Strength MD 310 lbf./in. (54.25 kN/m)
XD 310 lbf./in. (54.25 kN/m)
MD 310 lbf./in. (54.25 kN/m)
XD 310 lbf./in. (54.25 kN/m)
Width 3 ft. 3 in. (1 m) 3 ft. 3 in. (1 m)
Length 34 ft. 8 in. (10.57 m) 26 ft. 2 in. (10.57 m)
Weight 85 lbs. (39 kg) 90 lbs. (40.8 kg)
Nominal Thickness 105 mils (2,667 microns) 155 mils (3,937 microns)
Net Coverage 100 sq. ft. (9.29 m2) 75 sq. ft. (6.97 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 (Both)

Approvals that apply to this product

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


The following are for StressPly Plus FR Mineral only

LEED graphic Title 24 Logo
StressPly-Plus-4376-G_UL-Logo  StressPly-Plus-FR-Min-4377-G UL Logo

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