MODULARWALLS Slimwall Classic Post, Installation Manual

Page: 31 / 36

The SlimWall retaining system has requirements that are no different to any other retaining wall of similar size.
The process of properly finishing the back of your wall is done in 3 easy steps:
- Coating/sealing
- Drainage
- Backfilling
The materials and procedure for each of these steps is described below.
COATING/SEALING
The following applies to any section of the wall that is to be buried by backfill material.
Apply a polyurethane sealent at post/panel junctions. Using a commercial grade polyurethane sealant (i.e
FLEXIT), seal the junction between the posts and panels full length at the rear of the wall and seal the junction
between the two pansles full length at the rear of the wall.
Apply a water proofing sealer to the required area of the posts and panels. Any commercial waterproofing or
bituminious product designed for such use will suffice. SlimWall uses and recommends SikaTite BE, which is
available from most hardware stores. Where the wall is to be backfilled for only part of its height, apply the
sealing product to 100mm above the intended fill level. Posts should be coated on their rear face as well as the
support bracket and base channel.
DRAINAGE
A retaining wall without adequate drainage will act as a dam with potential damage to the wall. This applies to
running water that is both above and below the ground surface.
The ground behind the wall should be suitably contoured to prevent surface water being trapped.
At the base of the wall it is recommended that an agricultural line (75mm - 100mm diameter) be used to allow
under ground seepage to escape. A line fitted with an external filter-sock is recommended to reduce silt entering
the line. Place the agricultural line on top of the ‘base layer’ of aggregate (refer to the next page and drawing on
the following page).
Position the agricultural line to allow it to connect to a free-draining outlet (i.e stormater or to daylight).
Directing of the agricultural line through the wall panel for the purpose of draining is not recommended but can
be done if no other draining method is possible.
ADDITIONAL
SLIMWALL™ RETAINING PANEL
SLIMWALL™ INSTALLATION GUIDE 31