DuoPly™ EPDM roofing system is ideal for virtually any residential, commercial or industrial flat roofing project and contractor.
DuoPly™ EPDM roofing membrane is a polyester reinforced elastomeric flat roofing membrane. A flexible and elastic rubber membrane that is chemically and thermally stable with exceptional weather resistance.
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Improved tear resistance,180% greater than comparable non-fleece membranes
The exceptional physical properties of the EPDM roofing membrane are enhanced by a strong, polyester lining laminated to the underside of the EPDM waterproofing layer.
Provides 40% greater puncture resistance than comparable non-fleece membranes and greater than modified bitumen roofing materials
The polyester lining creates greater puncture resistance than modified bitumen (ASTM D5635-94 resistance to dynamic puncturing of the roofing membrane).
Less material to load onto the roof
Lightweight rolls of 35kg, with 18.54m² of membrane and the finished roof construction weighs 75% less than modified-bitumen flat roofing systems. That’s 75% less weight to carry and 75% less time spent loading materials.
Pre-applied Seam Tape (PST)
Pre-applied Seam Tape (PST) is applied to the DuoPly EPDM membrane in a factory-controlled setting ensuring reliable and greater peel and shear strengths with no entrapped air bubbles. 75mm PST provides quality, consistency and speed of installation with minimal labour and few components are required.
Solves Access problems
Where rooftop access is limited and the use of large cranes to load the material is impractical or impossible but still offering the ease and convenience of single-ply roof systems. The small easy to handle rolls are easy to carry or fit into service lifts.
Increased Speed of Application
Pre-applied Seam Tape (PST) improves seaming productivity by nearly 75% and addresses the roofing industry’s biggest challenge - the shortage of skilled labour. This means completing projects faster, improving the ability to get buildings “in the dry” in less time and minimising business disruption.
Delivering 30% greater peel strength and 32% greater shear strength than traditionally applied seams.
Allows old roof repair without removal
The polyester lining and adhesive combination allow for bonding to most existing flat roof surfaces. This must be clean, smooth, dry and free of sharp and/or loose objects before installation.
34% fewer seams than Modified Bitumen and light weight with DuoPly 1.52m wide membrane
The DuoPly EPDM membrane rolls are 1.52m x 12.2m (18.54m²) and 35kg, meaning the materials can be securely loaded into vans or trucks and easily carried in elevators, up stairs, up access equipment or along scaffold. Allowing materials to be safely loaded to roof height.
Weather, sunlight and heat resistant
Unlike most traditional flat roofing waterproofing membranes, DuoPly EPDM is completely resistant to temperature variations, weather and UV radiation. There is no need to protect the waterproofing membrane from sunlight either during construction or after!
Adheres to almost all substrates
DuoPly Deck Adhesive is a unique, semi-pressure-sensitive water-based bonding adhesive offering superior peel strengths compared to other water-based adhesives, low VOC levels and low odours due to its water-based nature.
Superior wind uplift resistance due to adhesive/fleece bond
The polyester lined flat roofing system utilizes acrylic adhesive technology - a semi-pressure-sensitive adhesive to adhere DuoPly to the substrate. DuoPly membrane is laid into the wet adhesive that has been roller-applied to the substrate. Adjoining sheets are spliced together using Pre-applied Seam Tape (PST). A fast easy system to fit that is watertight from the moment it is installed.