Directions for Use...So Simple...... 
Cut to size and place on top of free draining material directly against the water proofing membrane prior to back filling with appropriate metal
Styroflow is not intended to replace free draining back fill. Local regulations and bylaws must be adhered to in the design and construction of drainage for retaining walls
Simple to use protection and drainage aid for waterproofing membranes used in retaining walls or basement construction.
- Specifications
o Manufactured from polystyrene containing 50% recycled material
o Density approximately 13Kg/m3
o Compressive strength approx 50kPa @ 10% deformation
o Permeability approx 2.2 x 10 m/s
o Chemically resistant to most aqueous substances. Not resistant to hydrocarbons
o Non hazardous to user and environment
o Will not rot or assist with buildup of mildew
o Sheet sizes from 3600x1200x100mm, Custom sizes on request.
o Where depth is greater than 3600mm then two layers are required at base.
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