 Takes
a load off retaining walls. Installation is fast and simple.
Simply place the Form~Flow panel
firmly against the waterproofing membrane and above the drainage
pipe. Immediately after the tanking is completed. Ensure all
exposed waterproofing membrane cover is protected. A nonsolvent
based glue can be used to hold panels in place whilst installing.
Backfill with granular drainage metal or freedraining backfill.
Walls exceeding 5 metres will require double thickness of Form
Flow at base to ensure adequate resistance to compression loads.
Form Flow can be easily cut to shape at site to fit any retaining
wall. When installed correctly Form~Flow will met the provisions
of NZBC B1.31, B1.3.2 and B1.3.4 under the relevant conditions
of B1.3.3 relating to structure. Durability meets performance
requirements
of NZBC Clause B2.3.1(a) for 50 years so long as the material is
not subject to solvents or physical damage.
Form~Flow is made from
a specific process using only recycled EPS components. Unlike
normal EPS blocks the result is a porous material still offering
protective
properties associated with EPS products.
NOTE: Form~Flow panel will assist the drainage of the backfill.
However, for stability, material of adequate strength and
permeability must be used behind the Form~Flow panel; ideally
a sand or gravel material. In some cases the excavated material
may be suitable for use as a back fill. Where there is doubt
about the suitability of the excavated material for use as
back fill, technical advice must be sought.
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