Flex FB 80 TPO User Manual

Product Data Sheet

FLEX FB 80 TPO PLUS DATA SHEET

(FLEECE BACKED, REINFORCED, THERMOPLASTIC POLYOLEFIN MEMBRANE)

PRODUCT DESCRIPTION

The Flex FB 80 TPO Plus polyester reinforced thermoplastic polyolefin (TPO) fleece backed roofing
membranes are designed for use in new or reroofing roofing systems. The Flex FB 80 TPO Plus membranes
are manufactured in widths of 5’ and 10’x 50’ for economical installations. Flex FB 80 TPO Plus
membranes offer the proven weathering resistance of rubber (derived from its high ethylene propylene
rubber content) combined with the thermoplastic properties of polypropylene. The combination results in a
roofing membrane with hot air welded seams and the durability of EPDM roofing membranes. The Flex FB
80 TPO Plus membranes polyester reinforcement allows for structural movement with no splitting or
cracking. The combination of the reinforcing scrim, fleece backing and the TPO membrane provide Flex FB
80 TPO Plus membrane with high breaking strength, tearing strength and puncture resistance. The specially
formulated membrane offers excellent resistance to solar UV and chemical exposure as well as remaining
flexible in cold temperatures.

USE

Flex FB 80 TPO Plus membranes can be installed in new, reroof (tear-off) and recover roof constructions. In
recover construction, if the existing roof is structurally acceptable, the Flex roof system can save the cost of
disposing of the original roof system. Flex FB 80 TPO Plus membranes can be installed adhered directly
over layers of approved roof board insulation or cover boards. The Flex FB 80 TPO Plus membrane may
also be secured to the deck using an approved mechanically fastened system utilizing methods that have been
independently tested for wind uplift. The Flex FB 80 TPO Plus membranes are true thermoplastics;
therefore all seams are sealed by the hot air welding method creating a seam as strong as the original
membrane.

FEATURES

· Excellent low temperature impact resistance

· No Halogenated Flame Retardants

· Plasticizer Free – Chlorine Free

· Recyclable environmentally friendly product

· Chemically resistant to acids, bases and restaurant exhaust emissions

· Available in White, Gray or Tan

· White and Tan Flex TPO Plus FB Membranes LEED™ Qualified

· White and Tan Flex TPO Plus FB Membranes are Energy Star® roof products

INSTALLATION
The roofing system must be installed by an authorized Flex Roofing Systems TPO applicator. The Flex
applicator must inspect the area to be roofed to determine if the installation of a Flex Roof System is

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Flex Membrane International Corp. 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533

Tel: [phone] Fax: [phone] www.FlexRoofingSystems.com

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acceptable. The substrate must be clean, smooth, dry, and free of flaws, debris and other irregularities.
Follow Flex Specifications and NRCA recommendations for installation of wood nailers around perimeters
and penetrations. Install approved insulation according to Flex’s standard fastening requirements or
applicable code whichever is more stringent. The membrane is mechanically attached using the disk and
fastener in the seam method. Fastener spacing increments are determined by the projects specification
criteria and or printed guide specifications. For adhered systems, the membrane is laminated to the
appropriate substrate using Flex Fleeceback Substrate Adhesive. All seams are completed by the hot air
welding method. Contact the Flex Technical Service Department for the specific design requirements and
installation procedures for these two systems.

PHYSICAL PROPERTIES

Property Test Procedure Specification

Color white, tan or gray
Roll Size 5’x50’, 10’x50’
Weight 10’x 50’ roll = 232 lbs.
5’x 50’ roll = 116 lbs.
Thickness ASTM D751 0.080”
Thickness over scrim ASTM D751 0.034”
Breaking Strength (lbf) ASTM D 751 450 x 400
Seam Strength (lbf) ASTM D751 140
Elongation (min%) ASTM D751 30%
Heat Aging ASTM D573 >90%
Tear Strength (lbf) ASTM D751 70 x 170
Cold Brittleness ASTM D2137 -40° C Pass
Dimensional Change ASTM D1204 0.4%
Water Absorption ASTM D471 0.7%
Ozone Resistance ASTM D1149 Pass
Weather Resistance ASTM G155 Pass
Permeance ASTM E96 0.01 perms
Hydrostatic Resistance ASTM D751 430 psi
Reflectivity (white) ASTM C1549 0.76
Emissivity (white) ASTM C1371 0.90
SRI (solar reflectance index) ASTM E1980 109

Flex FB 80 TPO Plus membranes meet or exceed the requirements of ASTM 6878 Standard Specification
for Thermoplastic Polyolefin (TPO) Based Sheet Roofing.

WARRANTY
The Flex TPO FB 80 Roofing Membrane may receive the manufacturers standard five (5) year or optional
ten (10) year, fifteen (15) year , twenty (20) year or twenty-five (25) year guarantee of watertightness.

_____________________________________________________________________________________________________

Flex Membrane International Corp. 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533

Tel: [phone] Fax: [phone] www.FlexRoofingSystems.com

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