Flex TPO Square Tube Wrap - Manual (Page 2)

_____________________________________________________________________________________________________
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
Page 2
5. Remove the Square Tubing Wrap from around the pipe.
6. Prime a 3” wide area of the tubing directly below the mark as well as the corresponding area of the
Square Tubing Wrap with TPO primer. Wrap a piece of 3” Flex seam tape around the penetration at
the mark made previously. Tape should overlap 1”.
7. Wrap the Square Tubing Wrap back around the penetration until the vertical leg is tight against the
penetration. Use a 2” roller to press the membrane into the tape.
8. Tack weld the back edge of the Square Tubing Wrap’s vertical leg ensuring that good contact is
maintained between the pipe seal and the pipe. This process will hold the pipe-seal in
place.
9. Heat-weld the entire width of the vertical overlap. Hand roll against the outer surface
of the pipe to create the pressure necessary to achieve an acceptable weld.
10. Heat-weld the base flange to the deck membrane and complete the horizontal overlap
weld.
11. Apply a bead of approve sealant caulk at the top of the tubing wrap to cover the top edge of the
Square Tubing Wrap and the sealant tape.
12. Apply Flex TPO Cut-Edge Sealant to all edges of the Square Tubing Wrap that are located on the
horizontal plane. Do not apply the sealant to vertical surfaces.