VersiPly membranes are high-strength, puncture, and fatigue-resistant Styrene-Butadiene-Styrene (SBS) rubber-modified roof membranes. VersiPly is designed as the waterproofing and reinforcement layers of a modified built-up roofing system. The sheets consist of two laminated layers of fiberglass reinforcement sandwiched by SBS in a high penetration index asphalt mixture. VersiPly membranes can be used as the top component in a roofing system where fire retardancy is required. They can also be used with Garland's HPR® products and conventional glass base sheets or fiberglass roofing felts. In addition, VersiPly membranes can be used as a two-ply flashing system. VersiPly can also repair splits, cracks, and deteriorated areas in existing asphalt-based roof systems. Specifications are available for either hot or cold-applied systems.
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Method | Description |
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Hot-Applied | VersiPly membranes can be used with ASTM D 312, Type III or IV asphalt, Garland’s HPR All-Temp Asphalt or modified asphalt. One or two plies of ASTM D 2178, Type IV or VI fiberglass felt are solidly bonded to the approved substrate. The VersiPly membrane is then solidly adhered to these base layers with mopping asphalt. VersiPly membranes can also be applied in Garland’s cold applied Weatherking® or Green-Lock® membrane adhesive. Complete specifications are available for multiply modified bitumen applications in hot asphalt, Weatherking and Green-Lock Membrane Adhesive. |
Cold-Applied | VersiPly membranes can be used with ASTM D 312, Type III or IV asphalt, Garland’s HPR All-Temp Asphalt or modified asphalt. One or two plies of ASTM D 2178, Type IV or VI fiberglass felt are solidly bonded to the approved substrate. The VersiPly membrane is then solidly adhered to these base layers with mopping asphalt. VersiPly membranes can also be applied in Garland’s cold applied Weatherking® or Green-Lock® membrane adhesive. Complete specifications are available for multiply modified bitumen applications in hot asphalt, Weatherking and Green-Lock Membrane Adhesive. |
Physical Property | Value |
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Tensile Strength | VersiPly 80 MD 220 lbf./in. (38.5 kN/m) *XD 220 lbf./in. (38.5 kN/m) **MD 240 lbf./in. (42 kN/m) **XD 240 lbf./in. (42 kN/m) VersiPly Mineral MD 220 lbf./in. (38.5 kN/m) *XD 220 lbf./in. (38.5 kN/m) **MD 240 lbf./in. (42 kN/m) **XD 240 lbf./in. (42 kN/m) |
Tear Strength | VersiPly 80 MD 300 lbf. (1335 N) XD 300 lbf. (1335 N) VersiPly Mineral MD 300 lbf. (1335 N) XD 300 lbf. (1335 N) |
Elongation | MD 4.5% XD 4.5% |
Low-Temp Flex | -30°F (-34°C) |
VersiPly membranes are the top component of a multi-ply roof system and combine the inherent advantages and proven performance of multi-ply protection with the strength, flexibility, and elongation of elastomeric systems.
The VersiPly membranes are reinforced with two layers of fiberglass. The superior strength provided by the fiberglass scrim resists the movement created by today’s modern buildings. In addition, the fiberglass scrim in VersiPly membranes provides tensile strength in excess of 200 pounds per inch in the machine and cross-machine direction. This translates to long-term resistance to splits and tears in the completed VersiPly membrane roof system.
VersiPly membranes are coated at the factory with reflective mineral granules. Consequently, there’s no need to flood coat and gravel or aluminize the membrane’s surface. Roof projects can be completed on a more timely basis. The result is substantial labor expense savings.
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