Waterproofing is considered to be an important part in modern construction. The word Waterproofing' may be a misnomer as it is virtually impossible to provide absolute exclusion of water or moisture from a masonry/concrete structure. The process is basically an attempt to exclude maximum amount of water or moisture from a structure.

Waterproofing in buildings is the formation of an impervious barrier over surfaces of foundations, roofs, walls and other structural members of building to prevent water penetrations through these surfaces. The building surfaces are made water-resistant and sometimes waterproof.

Commonly used materials for waterproofing in building is cementitious material, bituminous material, liquid waterproofing membrane and polyurethane liquid membrane etc.
Waterproofing in buildings and structures are generally required for basement of structure, walls, bathrooms and kitchen, balconies, decks, terrace or roofs, green roofs, water tanks and swimming pools etc.


Waterproofing is essentially required where there is hydrostatic head of water…

Waterproofing is considered to be an important part in modern construction. The word Waterproofing' may be a misnomer as it is virtually impossible to provide absolute exclusion of water or moisture from a masonry/concrete structure. The process is basically an attempt to exclude maximum amount of water or moisture from a structure.

Waterproofing in buildings is the formation of an impervious barrier over surfaces of foundations, roofs, walls and other structural members of building to prevent water penetrations through these surfaces. The building surfaces are made water-resistant and sometimes waterproof.

Commonly used materials for waterproofing in building is cementitious material, bituminous material, liquid waterproofing membrane and polyurethane liquid membrane etc.
Waterproofing in buildings and structures are generally required for basement of structure, walls, bathrooms and kitchen, balconies, decks, terrace or roofs, green roofs, water tanks and swimming pools etc.


Waterproofing is essentially required where there is hydrostatic head of water to be resisted or where unusually dry conditions must be maintained. On the other hand damp proofing maybe defined as the treatment to retard the passage of water with application of suitable treatment methodology coating or integral waterproofing compounds.

The basic causes of defects in buildings are due to usage of excess water (high w/c/ ratio), by excess water we mean that, adding more water than required for hydration. This leads to formation of capillaries, pores, gel pores through which water can penetrate into the structure thus endangering the durability of the structure.

Concrete possesses a pores and capillaries and in this respect, it is fundamentally different from metal. The capillary and pore structure allows water under pressure to pass slowly through the material. Concrete subject to chemically polluted environment also gets deteriorated and damaged. It is here where polymer technology can be advantageously utilized to provide protection against the attack by water under pressure, acid and alkalis and chemically polluted environment.

Types of Waterproofing Methods for Buildings
The following waterproofing methods are commonly used in construction:
1. Cementitious Waterproofing
2. Liquid Waterproofing Membrane
3. Bituminous Membrane
4. Bituminous Coating
5. Polyurethane Liquid Membrane

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