Flex TPO 45 - Manual (Page 2)

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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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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 Bonding 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, gray or tan
Roll Size 5’x100’, 10’x100’
Weight 10’x100’ roll = 256 lbs.
5’x100’ roll = 128 lbs.
Thickness ASTM D751 0.045”
Thickness over scrim ASTM D751 0.015”
Breaking Strength (lbf) ASTM D 751 290 x 270
Seam Strength (lbf) ASTM D751 100
Elongation (min%) ASTM D751 30%
Heat Aging ASTM D573 >90%
Tear Strength (lbf) ASTM D751 124 x 140
Puncture Resistance FTMS 101C 2031 >290 lbs.
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 0.070 perms
Hydrostatic Resistance ASTM D751 390 psi
Reflectivity (white) ASTM C1549 0.76
Emissivity (white) ASTM C1371 0.90
SRI (solar reflectance index) ASTM E1980
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Flex 45 TPO Plus membranes meet or exceed the requirements of ASTM 6878 Standard Specification for
Thermoplastic Polyolefin (TPO) Based Sheet Roofing.
WARRANTY
The Flex 45 TPO Plus Roofing Membrane may receive the manufacturers standard five (5) year or
optional ten (10) year or fifteen (15) year guarantee of watertightness.