Waterproof Sealant for Exterior Walls
Long-Lasting Protection Against Floodwater, Damp & Weather Damage
Lakeside Flood Solutions’ Waterproof Sealant for Exterior Walls is a high-performance, transparent coating designed to protect brick, stone, and masonry surfaces from water ingress. Whether you’re reinforcing your flood wall defence strategy or looking to shield your property from heavy UK rain, our wall sealant for waterproofing offers a passive, permanent solution that helps keep walls dry, insulated, and structurally sound.
Unlike traditional coatings, this waterproof sealant for walls forms a 100% breathable barrier—allowing trapped moisture to escape while blocking external water from entering. Ideal for use in flood-prone areas or as part of a comprehensive exterior wall protection system.
Key Benefits of Our Wall Sealant for Waterproofing
✅ 100% Breathable – Prevents internal damp and condensation by allowing trapped moisture to escape naturally.
✅ Long-Term Protection – Offers up to 10 years of reliable flood and weather resistance.
✅ Invisible Finish – Transparent formula that does not alter the appearance or colour of brick or stone surfaces.
✅ Reduces Heat Loss – Helps insulate your walls by reducing thermal loss by up to 30%, improving energy efficiency.
✅ Mould & Damp Prevention – Minimises the risk of black mould caused by water penetration or persistent rain exposure.
Why Use a Waterproof Sealant for Exterior Walls?
Flooding, driving rain, and porous building materials can all lead to water ingress—damaging insulation, interiors, and wall structures over time. Our waterproof sealant for walls stops penetrating damp before it starts. It’s especially crucial where floodwaters may sit against a property for long durations.
As a critical element in any flood wall defence system, this sealant works in tandem with other Lakeside services, such as:
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Repointing with water-resistant mortar
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Sealing vulnerable cable or pipe entry points
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External wall rendering above flood levels
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Waterproof Sealant for Exterior Walls
Lakeside’s Waterproof Sealant for Exterior Walls is a transparent, high-performance coating designed to protect brick, stone, and masonry from water ingress. Ideal for properties in flood-prone or damp environments, this wall sealant for waterproofing forms an invisible yet powerful flood wall defence barrier. It prevents moisture from penetrating your walls—without affecting their appearance.
Unique Waterproof Wall Sealant Features:
- 100% breathable.
- Lasts up to 10 years.
- Reduces thermal loss by up to 30%.
- Reduced condensation & black mould.
- Transparent, no surface colour impact.
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Ancillary Wall Defence Services
- Re-pointing of walls with water-resistant mortar
- Rendering of external walls above flood threshold level
- Sealing of cable entry points with transparent sealant
