TPA Walkway Roll A Thermoplastic Tri-Polymer Alloy Walkway Roll
Composition: TPA Walkway Roll is a thermoplastic membrane which is comprised of an elastomeric tri-polymer alloy based on Elvaloy ® and blended with CPE and PVC. TPA Walkway Roll is reinforced with a high strength, wick resistant polyester fab- ric and has a serrated, slip-resistant surface. TPA Walkway Roll is asbestos free and exceeds the per- formance requirements of ASTM D 4434. Basic Uses: TPA Walkway Rolls are recommended to protect TPA and TPA FB Single Ply roof from potential damage as a result of light foot traffic and light tool or equipment handling. TPA Walkway Rolls are also compatible for installation to PVC roof membrane systems. Works well as roof top service pathways, around roof top equipment and under light equipment supports. Limitations: Not intended for use over PIB, TPO, EPDM, or BUR/MB roof membranes.
The following application information is designed to serve as a general guide. Your local Tremco Representative will prepare detailed specifications based upon your roofs conditions.
Structural Deck: Must be properly designed and structurally sound.
Drainage: Ponding conditions are unacceptable and will adversely affect the performance of any roofing system. Where positive drainage does not exist, water removal from roof surface must be facilitated by lowering drains, and/or installing additional drains or tapered insulation, or an approved lightweight insulating concrete slope system.
Installation Procedures: All surfaces must be clean and dry.
Dimensions: 3' x 60' x 0.080 (914 mm x 18.29 meters), easily field cut to desired size.
For heat welding, allow the hot air welder to warm up. Insert the nozzle tip of the hot air welder into the attachment area. Move nozzle at a steady speed, immediately applying pressure behind the air nozzle with a neoprene roller or weighted wheel to ensure positive contact of the heated TPA Walkway Roll to the roof membrane. • Minimum width of welded lap shall be 2.0" (51 mm) and 6.0" (300 mm) long when performing hand welds. • Spot weld TPA Walkway Roll to roof membrane. Attachment of walkway roll should not impede drainage. Field test heat welded laps to assure proper construction. Perform field test after lap area cools to ambient temperatures. Properly constructed heat welds will not separate at the lap interface when tested. Maintenance: Your local Tremco Roofing Representative can provide you with effective maintenance procedures which may vary, depending upon specific conditions. Periodic inspections, early repairs and preventive maintenance are all part of a sound roof program.
Two versions of TPA Walkway Roll are available: COLOR THICKNESS WEIGHT Gray 0.072” (2 mm nominal) 99 lbs (45 kg) Yellow 0.156” (4 mm nominal) 129 lbs (58 kg) Packaging: Available as a single roll or in pallets, with 20 rolls per pallet. General Application Data: Roof replacement usually involves more complexities than new construction roofing. Such contingencies as rusted or deteriorated decks, rotted wood components, rooftop equipment which cannot be moved or shut down, and numerous other conditions are often encountered.
Product Advantages
Features
Benefits
Thermoplastic
• Quickly installed by heat welding • Non slip traffic pad • Custom cut to roof areas • Resists environmental pollution, acid rain, and minor oil exposure
Serrated Surface Packaged as a Roll Chemically resistant
Roofing & Weatherproofing Peace of Mind™
Elvaloy® is a registered trademark of E.I. Dupont DeNemours Co.
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