TPA Flashing Membrane A Thermoplastic Tri-Polymer Alloy Flashing Membrane for Single Ply, BUR, and MB Roof Systems
• Double Duty Aluminum LV is not recommended for use in combination with TPA Flashing Membrane. Packaging: TPA Flashing Membrane is available in 12”, 24”, and 30” x 50’ rolls (305 mm, 610 mm, and 760 mm x 15.24 m rolls). TPA Field Membrane is also available in 6”, 39” and 78” x 108’ x 100’ rolls (150 mm, 990 mm, and 1980 mm x 30.5 m rolls). Color: White on the top; gray underside is not a weathering surface APPLICATION DATA The following application information is designed to serve as a general guide. Your local Tremco Representative will prepare detailed specifications based on the condition of your roof. Surface Preparation: Remove all dirt, dust, and other loose debris from the roof. Spud back all embedded gravel. Application as Roof Flashings for BUR & MB Systems: 1. Plan installation of TPA Flashing Membrane so flashing extends 6” (150 mm) from the base of the cant onto the roof system. All vertical over- laps must be 4” minimum (100 mm). 2. Remove embedded gravel, dirt, dust, deterio- rated felts, and other loose debris from the roof. Spud back all embedded gravel from the area to receive the flashing and stripping. Area should be prepared down to a clean, sound, dry base. 3. Apply adhesive to prepared area. Trowel apply White Sheeting Bond in a uniform and continuous application 1.6 mm (1/16”) thick to prepared flashing substrate. Allow Sheeting Bond to remain exposed for 15 minutes prior to installing TPA Flashing Membrane into this adhesive. Adjust open time depending on ambient conditions. Alternately, TPA Bonding Adhesive LV may be used to adhere TPA Flashings to the wall and out onto the roof membrane. Apply adhesive to the back of the TPA Flashing and onto the substrate, in a contact cement application. 4. Adhere TPA Flashing Membrane in adhesive, using care to avoid wrinkles and voids. Use a
Composition: TPA Flashing Membrane is a white Thermoplastic flashing membrane comprised of an elastomeric tri-polymer alloy based on Elvaloy ® and blended with CPE and PVC. TPA Flashing Membrane is reinforced with a high strength, water wick resistant polyester fabric. TPA Flashing Membrane is asbestos free and exceeds the performance requirements of ASTM D 4434-04, Type IV. Basic Uses: TPA Flashing Membrane is suitable for use as a reinforced flashing membrane with built up, modified bitumen, and single ply roof systems. TPA Flashing Membrane may also be used in conjunction with the Tremline Fascia System. Specific adhesives and application tech- niques are required for proper installation, as described in this data sheet. TPA Flashing Membrane is suitable for use in a 1 ply applica- tion on Tremco BUR, MB, and single ply systems, however, it may be combined with compatible ply sheets for multi-ply installations. Limitations: • The gray underside of the TPA Flashing Membrane is not intended for use as the side exposed to weathering. • TPA Flashing Membrane may discolor when applied over freshly applied asphalt mastics. Use adhesives described in this data sheet as recommended. • Not for use with hot applied bituminous adhesives. • Vertical overlap seams and inside/outside corners must be detailed with heat welded seams.
Product Advantages
Features
Benefits
Durable Material
Resistant to variety of chemical and environment conditions
Heat Welded Vertical
Vertical stripping not
Overlaps
required
Polyester reinforced
Superior tensile and tear resistance for high stress applications Suitable for use as a 1 ply flashing system
Elastomeric Ply
Roofing & Weatherproofing Peace of Mind™
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