Product Data Sheet
FLEX FB 60 TPO PLUS DATA SHEET
(FLEECE BACKED, REINFORCED THERMOPLASTIC POLYOLEFIN MEMBRANE)
PRODUCT DESCRIPTION
Flex FB 60 TPO Plus polyester reinforced thermoplastic polyolefin (TPO) fleece backed roofing
membranes are designed for use in new or re-roofing roofing systems. The Flex FB 60 TPO Plus
membranes are manufactured in 60 mil nominal thickness and in widths of 5’ and 10’x 100’ for
economical installations. Flex FB 60 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 60 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 60 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 60 TPO Plus membranes can be installed in new, re-roof (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 60 TPO Plus membranes can be
installed adhered directly over layers of approved roof board insulation or cover boards. The Flex FB 60
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 60 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
_____________________________________________________________________________________________________
Flex Membrane International Corp. 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533
Tel: (610) 916-9500 Fax: (610) 916-9501 www.FlexRoofingSystems.com
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acceptable. The substrate must be clean, smooth, dry, 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. All non-factory cut edges must be sealed with Flex Clear TPO
Cut-Edge Sealant. 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, gray or tan
Roll Size 5’x100’, 10’x100’
Weight 10’x100’ roll = 350 lbs.
5’x100’ roll = 175 lbs.
Thickness ASTM D751 0.060”
Thickness over scrim ASTM D751 0.020”
Breaking Strength (lbf) ASTM D 751 450 x 400
Seam Strength (lbf) ASTM D751 120
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 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 45 Roofing Membrane may receive the manufacturers standard five (5) year or optional
ten (10) year, fifteen (15) year or twenty (20) year guarantee of watertightness.
_____________________________________________________________________________________________________
Flex Membrane International Corp. 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533
Tel: (610) 916-9500 Fax: (610) 916-9501 www.FlexRoofingSystems.com
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