Flex TPO PLUS Adhered roof membrane - Manual (Page 4)

8/2012 4
C. Cold adhesive installations or installations in high velocity wind zones may require
additional securement at all roof penetrations and curbs, adjacent walls and at any
angle change where the slope exceeds 2:12.
D. All seams must be completed by hot air welding the same day they are installed.
Thoroughly probe the seams with a seam probe and repair any voids or defects
discovered.
3.0
Flashing:
A. General Flashing Conditions:
Flex Reinforced Flashing Membrane is to be installed for the flashing of parapet
walls, roof equipment curbs, expansion joints and roof dividers, and for most other
roof detail flashing areas. Flex non reinforced flashing membrane may be used for
those areas where the use of pre-formed accessories cannot be installed such as certain pipe
penetrations, corners, and scuppers details.
1. Re-roofing Flashing Conditions. Existing flashings must be removed prior to
installing the new Flex Flashing Membrane.
2. Termination Bar, surface mounted reglet, or surface mounted counter
flashings must be installed directly to the wall surface.
B. Application:
Adhere the flashing membrane to walls, curbs and other vertical surfaces with Flex
Flashing Adhesive. The Flashing Adhesive is applied to both the membrane and the
surface to which it is bonded. The coverage rate is dependent on the type of substrate but
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.