Cementitious waterproofing bonds directly to concrete and masonry and can be applied to damp surfaces, making it the practical choice in Gauteng’s wet season. We use it on older homes with basements in Pretoria’s inner suburbs near the Union Buildings and on water tank linings on properties near the Magaliesberg. Call 081 016 3479 for a free assessment.

When You Need Cementitious Waterproofing

Cementitious waterproofing is the right choice for concrete and masonry substrates that are structurally sound but porous or susceptible to moisture transmission, basement walls and floors, water tanks and reservoirs, retaining walls, shower bases, and below-ground concrete structures. It’s the preferred system for negative-side (interior) waterproofing where you can’t access the water-pressure side of the structure. It also works where the substrate is damp, making it practical for Gauteng’s wet-season situations.

Our Cementitious Waterproofing Process

The substrate is prepared by removing loose material, oil, and any curing compounds. Cracks are routed and filled with hydraulic cement. The cementitious product, either a rigid one-component system or a semi-flexible two-component polymer-modified cement, is mixed and applied in two coats by brush or spray. Corners and junctions are reinforced with fibreglass mesh embedded in the first coat. The system cures as a hard, water-resistant coating bonded directly to the substrate.

Cost of Cementitious Waterproofing in Gauteng

Cementitious waterproofing cost depends on the surface area, substrate preparation required, and system selected. Free on-site assessment and written quote, no hidden fees.

Why Choose Logiline for Cementitious Waterproofing

Licensed and insured. Workmanship Warranty. We match the product to the application, rigid for static structures like tanks, polymer-modified for areas with minor movement. Serving all of Gauteng.

Common Questions

Is cementitious waterproofing rigid or flexible?

Both types exist. Rigid cementitious systems are ideal for static structures like tanks and basements. Polymer-modified semi-flexible systems handle minor movement and are better for surfaces that experience thermal cycling.

Can cementitious waterproofing be applied on a wet surface?

Yes, this is one of its main advantages. Unlike bitumen or acrylic systems, cementitious waterproofing bonds to a damp substrate, making it practical for Gauteng’s wet-season waterproofing requirements.

How many coats of cementitious waterproofing are needed?

Typically two coats applied in opposite directions to close pinholes. Corners and junctions receive fibreglass mesh reinforcement embedded in the first coat. Application thickness follows manufacturer specifications.

Need cementitious waterproofing in Gauteng? Call 081 016 3479 for a free assessment.

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Further reading: waterproofing, building waterproofing materials and techniques.

Cementitious Waterproofing in Gauteng, Rigid Protection for Concrete and Masonry