The concept of waterproofing materials has evolved dramatically since the natural oils and early chemical compounds of the 20th century. Traditionally, the industry has focused on ‘blocking’ water using external physical barriers.
However, at Tecafil we have taken a leap forward towards waterproofing through the molecular restructuring of concrete. Using nanotechnology, we do not simply apply a product to the surface; instead, we transform the material’s matrix itself so that the concrete itself stops water from passing through.
Unlike conventional systems, which inevitably deteriorate over time, our nanotechnology-based system penetrates the capillary pores of the concrete. This technology modifies surface tension at the atomic level, converting a hydrophilic structure (which attracts water) into a hydrophobic one (which repels it). With this approach, we eliminate the main source of complaints in homes and industrial buildings: leaks that occur when traditional membranes lose their effectiveness.
Key components and the advantage over roller blind systems
The waterproofing of flat roofs has historically relied on bituminous membranes, PVC or EPDM. Whilst these materials have been the standard, they have a critical drawback: they are heavily dependent on the installer’s skill when it comes to overlaps and critical junctions. At Tecafil, by applying molecular restructuring, we eliminate the risk of poor joints or delamination due to temperature changes, as our treatment integrates into the structural substrate, forming a single unit with the concrete.
Whilst bituminous membranes require polyester or fibreglass felt reinforcement to achieve mechanical strength, our technology utilises the concrete’s own crystalline network to create the barrier. When waterproofing terraces or roofs with Tecafil, the substrate is not only made watertight but retains its vapour diffusion capacity, allowing the structure to ‘breathe’. This prevents the common problems of condensation and blistering that often occur beneath poorly installed PVC or rubber sheets.
Types of systems: From physical barriers to nanotechnology-based protection
There are various systems available on the market, ranging from self-adhesive single-ply membranes to large-format EPDM rubber membranes. However, even the most advanced PVC membranes, with UV protection and stabilisers, rely on on-site heat-sealing, which can fail. Tecafil’s molecular approach offers redundant security: it can function as a standalone system or as a reinforcing base that guarantees absolute watertightness even if an upper layer were to suffer mechanical damage.
Our nanotechnology-based application systems are ideal for both new builds and the refurbishment of buildings where traditional systems have failed. As it does not rely on rolls or standard sizes that must be adapted to complex geometries, Tecafil’s molecular restructuring adapts to any shape, recess or junction without the need for special finishing pieces. It is the definitive solution for eliminating damp in garages and basements, transforming older buildings with the most advanced technology of the 21st century.
The flat shape of a structure presents particular technical challenges, as the absence of steep slopes makes it easier for water to accumulate. Proper roof waterproofing is the key factor in preventing moisture from degrading the concrete and affecting the building’s habitability. Thanks to advanced solutions such as molecular restructuring, it is now possible to transform the material’s natural porosity into a hydrophobic barrier that protects the structure from within.
Working with specialist waterproofing companies ensures that the chosen system, whether using liquid membranes or technical sheets, is perfectly suited to the building’s requirements. By waterproofing the terrace, we are not only protecting the roof but also ensuring the structural integrity of the entire property, preventing recurring problems such as leaks at joints and critical points.
Roof waterproofing
Waterproofing for modern roofs must take into account both mechanical strength and vapour permeability. In flat structures, the use of nanotechnology enables the concrete substrate to maintain its integrity against cycles of rain and sun. By applying a robust roof waterproofing system, a continuous barrier is created that eliminates the risk of leaks and persistent damp in the floors below.
For waterproofing companies, the key to success lies in the pre-treatment of the substrate. Ensuring a clean and consolidated base before waterproofing the terrace allows the sealing agents to penetrate deeply, optimising the adhesion and long-term durability of the treatment, even in the most demanding weather conditions.
Waterproof the roof
When deciding to waterproof a roof, it is essential to distinguish between a walkable surface and a technical one. In both cases, the roof waterproofing must be able to withstand UV radiation and thermal expansion without cracking. The choice of the appropriate material for roof waterproofing will depend on the intended use, ensuring that the final finish is both aesthetically pleasing and functional.
Finally, waterproofing a roof using state-of-the-art techniques guarantees redundant protection. By combining surface waterproofing with the molecular restructuring of the concrete, waterproofing companies offer solutions that far surpass traditional methods. This comprehensive approach is the best investment for keeping any property permanently free from leaks.