Page 529 - Construction Waterproofing Handbook

GUIDE SPECIFICATION FOR WATERPROOFING 15.13
Attach the Miradrain 9000 panels by either placing temporary ballast on top of the Miradrain or
adhering the panels to the waterproofing membrane with Mirastick construction adhesive or
Mirabond two sided tape.

Connect adjacent panels at the longitudinal edge by pulling the filter fabric back to expose the
flange. Place a small amount of two sided tape or Mirastick on the flange. The flangeless edge
of the panel should be placed on top of the flange of the adjacent panel and butted dimple to
dimple. All connections should be completed in shingle fashion so that moisture will flow with the
overlap and not against it. Overlap fabric in the direction of water flow. Cover all terminal edges
with the filter fabric flap by tucking it behind the core.
Miradrain 9000 should be channeled into an internal drain or perimeter drain system.

Concrete, sand, grout, or pavers may be placed directly on the Miradrain 9000 fabric side. Caution
should be taken not to place point loads on the Miradrain that might puncture the filter fabric on
the Miradrain. When concrete is poured against Miradrain, use proper chuting techniques and
avoid high drop heights.
2. Floor Slabs and Concrete Lined Channels - MD-6000 or MD-9000
The subgrade shall be graded to a 2% minimum slope and clear of rubble, rock, large soil clods,
etc. The Miradrain should be placed fabric side down, directly on the subgrade. Installation
should proceed from the higher elevation of the slope and work downward. Connection of panel
ends shall be achieved with four row dimple overlapping and taping of terminal edges.

3. Planters - MD-9000
Miradrain 9000 should be placed fabric side to the inside (soil side) of the planter. The planter
walls should be covered with Miradrain 9000. Allow a 3" (7.5 cm) fabric overlap at the bottom of
vertical panels in order to cover the intersection of wall and bottom sections. Any exposed panel
edges must be covered with supplemental pieces of fabric to prevent soil intrusion into the flow
channels.

3.05 DISCHARGE CONNECTIONS
A. Drainage - Where drainpipe is indicated, place the drainpipe next to the core. Wrap the drainpipe or
rock-pipe drain combination with an auxiliary piece of Mirafi filter fabric.
At weep holes, cut a hole in the core corresponding to the size and location of the weep hole. Avoid
cutting a hole in the fabric by cutting the backside of the core between the dimples. A four dimple
square area cut between the dimples (2 1/2 square inch) should be sufficient for most applications.
Plaza Drains - Create openings in the Miradrain core to correspond with all discharge holes in the
drain at the structural deck level. Fabric must be placed over these holes to prevent intrusion of soil,
grout, sand, or concrete into the drainage core.
FIGURE 15.1 (Continued) Guide specification for section 2715, prefabricated drainage system. (Courtesy TC MiraDRI)