It is essential to waterproof a structure to prevent the seepage of water for its durability. We provide water proofing solutions for basements, sunken portions, roofs, terrace gardens and expansion joints etc. We deal with several ways of water proofing depending on a structure, site and conditions viz.: Polymer Modified Cementitious Membranes Polyurethane Membranes Box Type Method using Kota/Agra Stone Injection Grouting APP modified bituminous membranes / Trafelt EPD Membrane PVC Membrane

1. B-267/268, North Ex Mall, Sector 9, Rohini,
New Delhi - 110085
Tel No: +91-11-47068151/52/56
Email: info@epa-infrastructure.com
EPA Infrastructure Pvt. Limited

2. Introduction
It is essential to water proof a structure to prevent the
seepage of water for its durability. We provide water
proofing solutions for basements, sunken portions, roofs,
terrace gardens and expansion joints etc. We deal with
several ways of water proofing depending on a structure,
site and conditions viz.:
Polymer Modified Cementitious Membranes
Polyurethane Membranes
Box Type Method using Kota/Agra Stone
Injection Grouting
APP modified bituminous membranes / Trafelt
EPD Membrane
PVC Membrane

3. Polymer Modified Cementitious
MembraneLine of cementitious coatings are
designed to protect reinforced concrete
structures in two ways – for protection
against chemical attack and as a
structural waterproofing. A membrane
which is highly flexible, polymer-
modified cement membrane, which can
be easily applied by brushing or with
spray equipment for larger applications
is used. The product is used for
waterproofing of potable water or
wastewater treatment facilities in new
construction or restoration projects.
This method is generally very effective
in Water Treatment Plants Sewage
Treatment Plants, Bridges, Dams,
Railway & Subway Systems, Marine
Cargo Ports & Docks, River
Locks/Channels & Concrete Dykes,
Parking Structures & Lots, Tunnels etc.

4. Polyurethane Membranes
These are high
performance, versatile
membranes which are
acrylic based providing
excellent flexibility, high
durability and very good
finish. Initially a dry and
clean surface is prepared
for its application and then
the membrane is spread
over the area.

5. Injection Grouting
Cracks as narrow as 1 mm can be
bonded by the injection of epoxy using
this technique. The technique generally
consists of establishing entry and
venting ports at close intervals along
the cracks, sealing the cracks on
exposed surfaces and injecting the
epoxy under pressure. This technique is
successfully used in repair of cracks in
buildings, bridges, dams and other
types of concrete structures.
Cracks as narrow as 1 mm can be
bonded by the injection of epoxy using
this technique. The technique generally
consists of establishing entry and
venting ports at close intervals along
the cracks, sealing the cracks on
exposed surfaces and injecting the
epoxy under pressure. This technique is
successfully used in repair of cracks in
buildings, bridges, dams and other
types of concrete structures.

6. APP modified membrane
This technique is used to cover the
joints by fixing APP membranes.
APP membranes provide superior
tensile strength while maintaining
critical flexibility – even in the
coldest environments.
Additionally, with APP
membranes. 2 layers of 2 different
APP membranes are fixed with the
insertion of a backer rod and then
the whole work is veneered by
covering it by brick work and
plaster. The App membranes are
fixed using gas burners.

7. EPD Membranes
EPD membrane is a 100%
cured single-ply roofing
membrane made of a
Ethylene-Propylene-Diene
Terpolymer offering. This is
a rubber membrane sheet
which can be easily spread
over the area. It provides
very high flexibility and
durability

8. PVC membrane
This membrane is fiberglass
reinforced, offering
exceptional dimensional
stability and a low
coefficient of thermal
expansion. By fully
encapsulating the fiberglass
reinforcement, there is no
risk of delamination or
water wicking. This is a
stable, flexible membrane
providing high mechanical
strength.

9. Box type method
This is a special
technique where
Kota/Agra stone can be
used to water proof the
system. This provide
high mechanical
strength but its
durability comparing
to other methods is
lesser.

10. Thank you