A strong foundation is the support of any structure, but without properly executed waterproofing it cannot withstand permanent damage. Foundation waterproofing is not merely a precaution—it is a necessity that ensures the safety, durability, and preservation of a building’s value.

Batumi, Hotel ROTANA

Why Is Foundation Waterproofing Necessary?

Concrete is naturally a porous material, which over time allows water and moisture to penetrate. This infiltration weakens the foundation, causes cracks, and may even lead to structural instability. Beyond these problems, water intrusion creates a damp environment that encourages the growth of mold and mildew, posing risks to indoor air quality and to human health. Waterproofing acts as a protective barrier, safeguarding both the building and its occupants.

What Dangers Does Foundation Waterproofing Protect Us From?

Without waterproofing, a foundation faces multiple risks:

Structural damage – Water erodes the soil and reduces its load-bearing capacity.

Corrosion – Reinforcing steel within the concrete rusts and expands, leading to cracks.

Mold and mildew – Accumulated moisture creates unhealthy living conditions.

Financial loss – Repairing a damaged foundation is costly and labor-intensive.

Types of Waterproofing

Different methods are used depending on conditions and objectives. These include coatings and sprays, but in this blog we’ll highlight innovative systems:

Chemically Bonded Waterproofing – Fosroc Proofex HDPE

A waterproofing membrane that bonds tightly with freshly poured concrete, chemically adhering to it and ensuring permanent protection of underground structures from water and moisture.

• Requires no primer or additional protective layer.
• Offers high flexibility and tensile strength (> 25 MPa).
• Maintains effectiveness even in environments contaminated with hydrocarbons, salts, and other substances.

• Withstands rebar tying directly on the membrane.
• Complies with British Standard B.S. 8102:2022.

Mechanically Bonded Waterproofing – Fosroc Proofex Engage

A waterproofing membrane that provides permanent foundation protection against water ingress.

• Unique cellular system ensures mechanical bonding with concrete and permanent fixation.
• Application requires no welding.
• Self-adhesive strips mechanically lock into poured concrete.

• Requires no preparatory layer.
• Withstands rebar tying directly on the membrane.
• The watertight barrier formed between the membrane and concrete remains stable even under increased load.
• Protects concrete against chemicals, hydrocarbons, and aggressive salts.

• According to BRE reports, protects concrete from the effects of methane, CO₂, and radon.
• Complies with BS EN 13967:2012 and BS 8102:2009 standards.
• Holds BBA certification.

Fosroc Waterproofing Systems

The British brand Fosroc is a global leader in waterproofing, offering durable and versatile solutions. Their systems not only protect structures from water ingress but also extend the service life of buildings.

Proofex HDPE and Proofex Engage are recognized as reliable and innovative products used in both residential and large-scale infrastructure projects.