Flex TPO Для дома - Manual (Page 36)

Permanent Repair
Flex requires that this repair be performed by a Flex Approved
Applicator. This repair is required to be completed in accordance with
current Flex Details and Specifications.
Materials
Flex Thermoplastic Reinforced TPO Plus ® 45 mil, 60 mil, or 80 mil
Flashing Membrane. A detergent cleaner such as Flex orange power
cleaner or trisodium phosphate is applied to remove residual dirt. Final
cleaning is achieved with a solvent cleaner such as Flex Weathered
Membrane Cleaner, Scotch Brite Pads, clean white cotton rags.
Procedure To Repair Holes or Tears
Locate the damaged area. Prepare the surface by removing debris,
contaminants and ballast from the area of the membrane or flashing to
be repaired. The area should extend beyond the perimeter of the patch
to provide an ample-sized clean work area. Dampen a Scotch Brite Pad
and scrub the repair area clean with an approved cleaner to loosen
and remove heavy residual dirt. Dampen a clean white cotton rag and
clean the repair area with an approved cleaner a second time.
Dry the repair area with a rubber squeegee and clean, white, cotton
cloths. Cut a patch from a piece of Flex TPO 45 mil flashing membrane.
The patch should extend past any part of the damaged area by a
minimum of 4.” Round off the corners of the patch. Wipe the area of
the existing membrane to receive the patch and the underside of the
patch material with a clean, absorbent, lint-free cloth dampened with a
solvent such as Flex Weathered Membrane Cleaner. Do not pour
the solvent directly on the membrane.
Wipe the repair area clean and allow the area to air dry. Lay the patch
over the area and tack weld to the existing membrane with the hand
held hot air welder and rubber faced hand roller. Pre-weld the patch by
inserting the hot air nozzle under the patch and forming a continuous
pre-weld approximately 2 inches from the outer edge of the patch.
Finish weld the outer 2 inches of the patch pressing firmly with the
rubber faced hand roller. In the case of mechanically fastened or loose
laid systems it is often possible to weld the patch to the underside of
the existing membrane. Allow the welded area to cool to ambient
temperature and check the welded edge for voids using a seam probe.
If voids are found re-weld with the hot air welder, and recheck with
the seam probe.
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