Since 1992Haryana's first ISO-certifiedMember, Waterproofing Association of IndiaOpen every day, 9:30 am – 6:00 pm
+91 98113 34420  ·  support@pces.in

Waterproofing

Sheet Membrane Waterproofing (APP & HDPE)

Factory-made membranes give a uniform thickness that site-applied coatings cannot match. We use torch-applied APP bitumen membranes on roofs and HDPE membranes below ground.

APP membraneHDPE membraneRoofsBasements
Roof waterproofing completed by PCES on a residential terrace

APP membrane for roofs

Atactic polypropylene (APP) modified bitumen membranes are torch-bonded to a primed roof slab with overlapping, heat-welded joints. They handle Delhi summers well and can be left exposed with a mineral finish or protected with screed.

PCES applicators torch-bonding an APP membrane on a roof, with heat-welded overlaps

HDPE membrane for basements and foundations

High-density polyethylene (HDPE) membranes are laid under rafts and against retaining walls before concreting. They resist ground water, soil chemicals and root growth, protecting basements that are almost impossible to fix later.

Our process

  1. Survey and specificationWe confirm the right membrane and detailing for your structure.
  2. PreparationSurface cleaned, primed and cove fillets formed at junctions.
  3. LayingSheets laid with the specified overlaps; joints torch- or tape-sealed.
  4. Protection and testingProtection layer or screed on top; flood test on roofs.

Authorised applicator for

Dr. Fixit
Fosroc
Sika
Zydex
Starproof
STP
Asian Paints

Questions

Frequently asked questions

APP membrane or liquid membrane for my roof?

APP gives uniform thickness and suits large flat roofs. Liquid membrane suits complex roofs with many pipes and upstands. We recommend after inspection.

Can HDPE be added to an existing basement?

HDPE works best before construction. For existing leaking basements, we use injection and PU grouting from inside.

Request an inspection and quote

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