DESCRIPTION
Thermoplastic Polyolefin (TPO) Fleeceback Waterproofing Membrane is manufactured using a single-ply extrusion process without the use of liquid plasticizers. The membrane is formulated from polyolefin polymer synthetic resin and EPDM-based modifiers, and incorporates antioxidants, UV absorbers, anti-aging agents, and other performance additives to enhance long-term weathering resistance and durability.
Raw materials
The membrane is factory-laminated to a non-woven polyester fleece backing designed to facilitate full adhesion or mechanical attachment using manufacturer-approved bonding adhesives or fastening systems. The fleece backing improves adhesion to approved substrates, enhances dimensional stability, and increases resistance to puncture and substrate irregularities, while maintaining the flexibility and heat-weldability of the exposed TPO surface.
Excellent Quality
ToppsFlex TPO features a low shrink rate, superior strength, impact and puncture resistance, and a long service life.
Convenient Construction
Roofing assembly is simplified with ToppsFlex TPO. It’s easy to weld, highly efficient, and provides strong seam connections with high peel strength for watertight sealing.
Product Type
Fiber fleece-backed (+55 mils) (Category L), Reinforced with polyester scrim (Category F).
Application Scope
The membrane is suitable for use in new construction and roof restoration applications over approved substrates, including steel, concrete, wood, gypsum, and existing compatible roofing systems, when installed in accordance with manufacturer requirements and project specifications.
APPLICATION
Substrates must be clean, dry, smooth, and free of sharp edges, fins, loose or foreign materials, oil, grease, and other materials that may damage the membrane.
All rough surfaces that can damage the membrane shall be repaired as specified to offer a smooth substrate.
All surface voids greater than 1/4” (6.3mm) wide should be properly filled with an acceptable fill material. ToppsFlex TPO waterproofing membrane is installed as a continuous roofing or waterproofing layer on the roof. Rolls are over lapped (side laps and end laps) prior to heat welding the seam areas. Install the ToppsFlex TPO in accordance with current ToppsFlex TPO specifications, details and workmanship requirement
ADVANTAGES
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Enhanced chemical resistance
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Can increase a building’s energy efficiency
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Excellent heat weldability
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Exceptional low-temperature flexibility
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Highly resistant to punctures, UV, ozone and oxidation
Frequently Asked Questions
Q: What are the advantages of ToppsFlex TPO Fleeceback roofing membranes?
A: ToppsFlex TPO Fleeceback membranes combine the proven weather resistance of TPO roofing with a reinforced fleece backing that enhances puncture resistance, improves substrate adhesion, and helps accommodate irregular roof surfaces. This makes them an excellent choice for both reroofing and new commercial roofing applications.
Q: Why do contractors choose fleeceback TPO roofing systems for reroofing projects?
A: Fleeceback TPO systems can often be installed over approved existing roof substrates, helping reduce tear-off requirements, minimize disruption, and improve project efficiency. The added fleece layer also provides enhanced durability and long-term system performance.
Q: What should building owners look for when evaluating TPO roofing membrane manufacturers?
A: When comparing PVC roofing membrane manufacturers, building owners should evaluate membrane durability, chemical resistance, weather performance, warranty coverage, and system compatibility. A complete roofing system designed by experienced roofing system manufacturers can help maximize roof lifespan and overall building value.
Q: Is ToppsFlex TPO Fleeceback suitable for commercial buildings in Dallas, Texas and other high-heat climates?
A: Yes. ToppsFlex TPO Fleeceback membranes are engineered to provide durable waterproofing performance and reflective roofing benefits that can help support energy-efficient building operation in demanding climates such as Dallas, Texas and throughout the southern United States.
Q: Why do architects and consultants specify single-ply roofing systems for commercial projects?
A: Single-ply roofing systems are commonly specified because they offer reliable waterproofing, installation versatility, energy-efficient performance, and long-term durability. As one of the most widely used commercial roofing solutions, TPO membranes continue to be a preferred choice for architects, consultants, and facility owners across the USA.
SPECIFICATIONS
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