Flex Split Pipe Boots User Manual
Product Data Sheet
FLEX SPLIT PIPE BOOTS
PRODUCT DESCRIPTION
The Flex Split Pipe Boot is factory produced from Flex’s 45 Mil MF/R Elvaloy® Flashing Membrane.
The Flex Split Pipe Boot prefabricated pipe flashing may be used on all pipe shaped roof penetrations but
was specifically designed for installation in areas where access to the top of the pipe penetration is limited
or impossible. The Flex Split Pipe Boot is manufactured in sizes that allow for flashing pipe type
penetrations from 1” to 12” in diameter.
PHYSICAL PROPERTIES
Property Test Procedure Specification
Color White, Gray or Tan
Sizes 1” to 3”
3” to 5”
6” to 9”
9” to 12”
Thickness ASTM D751 0.045”
Breaking Strength ASTM D751 325 lbf.
Elongation ASTM D751 50%
Accelerated Weathering ASTM G155 Pass
Low Temperature Bend ASTM D2136 Pass -40°F
Flex MF/R Elvaloy® Flashing Membranes are thermoplastic in nature and exceed the requirements of
ASTM D4434 standard specification for poly (vinyl chloride) sheet roofing.
INSTALLATION
Complete installation instructions are available by consulting current Flex Specifications and Details. If
there are any questions involving the specifications or details or if more information is required please
contact the Flex Technical Service Department.
1. Determine that the area intended to receive the Flex Split Pipe Boot prefabricated pipe flashing is
clean and properly prepared for the hot air welding procedure.
2. Wrap the Flex Split Pipe Boot prefabricated pipe flashing around the pipe overlapping at the seam a
minimum of 2”.
3. Hot air weld the seam at the transition from vertical to horizontal.
4. Hot air weld the vertical seam and follow by welding the horizontal seam.
_____________________________________________________________________________________________________
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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5. Inspect the welded seams by probing the seams thoroughly with a seam probe. Reweld as necessary.
The completed weld should be a minimum of 1.5” in width.
6. Complete the installation by installing a stainless steel hose clamp and approved caulking at the top of
the vertical flashing.
STORAGE
Store in original unopened containers at temperature range of not less than 40°F to no higher than 105°F.
LIMITATIONS
Caution should be taken in transporting the material so as not to allow physical damage such as abrasion
or punctures.
Elvaloy® is a registered trademark of Dupont.
_____________________________________________________________________________________________________
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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