Flex TPO PLUS Mechanically Attached - Manual (Page 4)

8/2012 4
should average approximately 60 square feet per gallon for both the membrane and the
substrate. The flashing adhesive is allowed to dry until it is tacky and the flashing
membrane is rolled into the adhesive.
1. Complete all seams of the flashing membrane by the hot air welding
method.
2. Refer to the current Flex Membrane installation for applicable detail
requirements.
4.0
Accessories:
A. Walkway Pads
1. Install walkway pads in those locations as designated in the specifications.
2. Thoroughly clean and prepare the area of the roof membrane that is to be hot air
welded to the walkway pad.
3. The Flex Walkway Pad is installed in maximum lengths of 10’.
4. Position sections of the walkway pad to leave a space between adjacent
sheets approximately 2” wide.
5. Do not cover field seams with the Walkway Pad. Position the pads to leave
minimum 4” wide area exposed at the field seams.
6. Hot air weld all four sides of the walkway pad to the field membrane.
B. Pavers
1. Either a protection sheet of Flex MF/R Flashing Membrane or Flex
180N Geotextile Separation Layer must be installed under all concrete paver
blocks.
5.0
Night Seal:
A.
The new roof membrane must be sealed at the end of each work day to prevent water
infiltration.
B.
The membrane may be temporarily sealed by securing the down slope edge with roof
cement, hot asphalt, spray urethane foam or similar water blocking materials.
C.
Embed the membrane into the sealant product and insure continuous contact.
D.
The following day, when the installation is resumed, cut away and discard the
membrane where the night seal was applied before continuing with installing the
adjoining section.