External waterproofing membrane 40 sqm for below ground applications

A robust double-layered external waterproof membrane for waterproofing foundations in new-build applications.

Layer 1 – High density polyethylene membrane with 7mm studs giving great strength and draining capacity.
Layer 2 – Geotextile mat to prevent particles from blocking cavity or drain.
BS 8102: 2009 – Type C compliant – waterproofing below ground.

Geotex Membrane Properties

Membrane size: 2 x 20m (40m2)
Roll diameter: 400mm
Density: 0.61 kg­/m2 

Cuspated Drainage Sheet

Capsulate/ Stud height: 7mm
Compressive Strength:  180 kN/m2

Nonwoven Filter Geotextile

Apparent Pore Size 90% finer:  85microns
Waterflow capacity (l­/sec/m2):  80 (= 480 l/min/m2).

If using as capping membrane you will need waterproofing tape at  lap joints.
If using as an external foundation waterproofing membrane you will also need some epoxy sealing paint, capping strips, membrane plugs and seals.