Pre-Applied Waterproofing Membranes

Quick answer

SRD Infra supplies pre-applied waterproofing membranes across India for raft foundations, confined retaining walls, basements and cut-and-cover tunnels where the membrane must be installed before concrete placement.

Pre-Applied Membranes are Type A barriers and are positioned before the concrete is poured. These membranes are found on the external face of the structure and are strong and robust, as concrete is poured against them. Pre-applied membranes are developed for horizontal and vertical external blind side, or confined surfaces waterproofing applications.

Features : Bonds to concrete and makes structure watertight, Fast application, high durability, effective radon & methane barrier, Cost effective solution, No lateral water underflow.
Available Reinforcements : Polyester Reinforced & Non-reinforced
Available Thickness : 1.5 mm to 4.50 mm
Uses : Waterproofing of raft & confined retaining walls in basement, Waterproofing of cut and cover tunnels.

Pre-Applied or Post-Applied Waterproofing?

Compare installation sequence, access requirements, water migration control and suitable applications before selecting a below-grade waterproofing system.

Read Comparison Guide Basement Waterproofing Options

Pre-Applied Membrane FAQs

Where are pre-applied waterproofing membranes used?

Pre-applied membranes are used below raft foundations, on blind-side retaining walls, in basements and in cut-and-cover tunnels where waterproofing is installed before concrete is poured.

Why use a pre-applied membrane instead of post-applied waterproofing?

Pre-applied membranes are suitable where later access to the external concrete surface is limited or impossible. The membrane is placed before concrete and is protected during the construction sequence.

What project details are needed for selection?

Share the basement depth, raft or retaining wall area, groundwater condition, concrete sequence, access constraints, membrane thickness requirement and project city.