11 January 2007
Membrane and Flashing Repairs. Remove existing gravel or
paver ballast, geotextile fabric, and insulation boards in the area of the defect.
Due to the nature of these systems, the area of overburden removal will be
considerably larger than the repair area. Perform repairs in accordance with
paragraph 1-5.1 through 1-5.4 of this UFC.
Reinstallation of Overburden. Reinstall insulation boards with
tight joints and drainage channels facing down. Reinstall geotextile filter fabric so
that all joints of insulation are completely covered and fabric is lapped a minimum
of 6-inches (152mm). If fabric has been cut or excessively torn during removals,
replace fabric. Reinstall ballast. Distribute gravel evenly to match existing
conditions prior to repairs. Reset pavers on pedestals if used, so that pavers are
solidly set and do not rock. Replace pavers broken as a result of removals.