Basement Waterproofing
Waterproofing Below Ground Structures
Sealing structures below ground against water infiltration can be a real challenge. Rising water tables combined with rising property prices and the need to make use of existing space have also led to an increased demand for reliable tanking systems for basements and other underground structures, many of which were not originally designed to resist water ingress. Dampness can be a particularly persistent problem on the internal walls of concrete and brickwork basements. and a reliable repair and protection system is therefore required to provide a fully waterproof tanking solution.
Basement Waterproofing Guide
Flexcrete products enable complete waterproofing protection for basements and below ground structures. This handy guide explains the fundamentals of effective structural waterproofing and provides the key features and benefits of Flexcrete's simple, one-coat solution.
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Discover More About Flexcrete’s Solutions for Basement Waterproofing…
Simply hover your mouse over the various hot spots in the illustration below to reveal how Flexcrete’s products can help solve typical basement waterproofing challenges. You can then click on the hotspot to visit the corresponding page and find out more.
Fastfill WP
- Rapid setting, water-plugging mortar
Fastfill WP
- Ideal for stopping water seepage through cracks, joints & voids in concrete and masonryBiodex Sheen
- Hygienic, vapour-permeable, semi-gloss coating
Biodex Sheen
- Extremely fast-drying & easy to clean, and available in a wide range of attractive coloursCemprotec E-Floor System
- Ideal for more demanding situations
Cemprotec E-Floor System
- Excellent resistance to abrasion, water, chloride ions & aggressive chemicalsCemprotec Levelling Coat
- Odourless, rapid drying, self-levelling mortar
Cemprotec Levelling Coat
- Can be overlaid after just 3 days & compatible with a wide range of common flooring systemsMonolevel RM
- Pre-bagged material, quick & easy to apply.
Monolevel RM
- Resistant to 7 bar water pressure & reinforced with fibres for extra strength and durability.
- Compatible with all common wall finishes.Monolevel RM
- Pre-bagged material, quick & easy to apply.
Monolevel RM
- Resistant to 7 bar water pressure & reinforced with fibres for extra strength and durability.
- Compatible with all common wall finishes.Fastfill WP
- Rapid setting, water-plugging mortar
Fastfill WP
- Ideal for stopping water seepage through cracks, joints & voids in concrete and masonry
Long-Lasting Protection from Flexcrete
Flexcrete’s structural waterproofing and tanking systems offer practical, long-lasting solutions to a range of typical problems.
Suitable for both refurbishment and new build works, our impermeable, sulphate resistant, cementitious coatings are ideal for the structural waterproofing of below ground and water retaining structures. Perfect for application to damp surfaces, they provide outstanding waterproofing performance and long term structural protection.
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Basement Waterproofing Problems and Solutions
- Water Ingress
- Osmotic Blistering
The Problem
Damp or leaking basements and underground structures need structural waterproofing to prevent damage to fixtures and fittings. The high cost of land encourages the use of below-ground structures which may often be below the water table.
The Solution
Both brick and concrete substrates can be waterproofed by the application of two 1mm coats of Cementitious Coating 851.
Active water infiltration under pressure can be quickly arrested using Fastfill WP.
Where pointing requires reinstating, or a fair-faced, waterproof render is required then Monolevel 844SP can be used in thicknesses up to 6mm per layer.
The Problem
Treatment of damp or freshly laid concrete floors without the risk of osmotic blistering when impervious finishes are subsequently applied.
The Solution
Cemprotec E-Floor is applied to prepared concrete floors that have been primed with Cemprotec EF Primer. It is spread to a minimum 2mm thickness and cured with silica sand. This has the dual benefit of providing a slip resistant finish where required, and assisting the adhesion of any coatings that may be subsequently applied.
Only 48 hours curing is required before Impervious floor coatings and finishes can be laid.
Where a stand-alone system is required, the sanded surface can be sealed with Cemprotec Sandseal 75 to enhance longevity.
Basement Waterproofing Products
Find out more about Flexcrete’s range of basement waterproofing products below:
| Cemprotec Levelling Coat | Self-levelling cementitious mortar for concrete floors prior to the application of Cemprotec E-Floor or Cemprotec E-Floor HB. |  |
| Cemprotec EF Primer | Single component sealer and primer for floors, prior to the application of the Cemprotec range. | |
| Cemprotec E-Floor | Epoxy and cement modified polymer coating for protecting / waterproofing concrete floors. (2mm) | |
| Cemprotec EF Grit | Quartz aggregate for abrasion and skid resistance within E-Floor systems. | |
| Cemprotec Sandseal 75 | Clear, hard wearing, single component, polyurethane coating for protecting / sealing Cemprotec E-Floor. | |
| Cemprotec Sandseal WB | A clear, water-based sealer for protecting concrete floors. | |
| Fastfill WP | Rapid setting concrete repair mortar for arresting water seepage and infiltration under pressure. Sets in 2 mins. | |
| Monolevel RM | Rendering and profiling of concrete to provide a fairfaced render finish. | |
| Biodex Sheen | Tough, sheen finish, biostatic coating with encapsulated biocide and silver ion technology. | |
Basement Waterproofing Projects
Take a look below at some of Flexcrete’s latest structural waterproofing projects, or browse the project profile pages to find more.
Project Profile
Project Location: Cotton Building, Spinningfields, Manchester
Flexcrete’s products were chosen as the waterproofing system for secant piled basement at Cotton Building, Spinningfields, Manchester.
Project Profile
Project Location: GAP, Piccadilly Circus, London
Flexcrete’s Cementitious Coating 851 was chosen for the waterproofing of brickwork in the basement at GAP Store, London.
Project Location: Broomfield Hospital, Chelmsford
Flexcrete’s products provided a fast-track solution for waterproofing of freshly cast substructure concrete at Broomfield Hospital, Chelmsford. .
