INTERPLAST
Dimpled Sheet – The Ideal Support Layer...
ISO-DRAIN 20 dimpled sheet from INTERPLAST provides reliable full-surface drainage in tunnels and other underground structures exposed to heavy groundwater flow.
Used as a separating layer between the outer (shotcrete) and inner shells of the tunnel, it offers design engineers numerous advantages including:
Outstanding drainage capacity
Controlled redirection of water influx to collection system
