Damp-proofing and waterproofing are terms we often encounter in the building industry and they refer to a specific function. In product presentation and technical documentation, the two terms are often equated, leading to confusion, also due to “cross-translations” from English into other languages.
Important differences distinguish these two terms. Whether you are planning a new construction or a renovation, it is better to know the meanings in order to ensure optimal construction that also allows, when envisaged, comfortable living on basement floors.
In this article, we can try to better understand the difference between the two terms.
What does “damp-proofing” mean?
Damp-proofing is the function of a material that can slow down or prevent, on a surface, the absorption of moisture (i.e. in the absence of hydrostatic pressure). The main purpose is therefore to slow down moisture seepage, but it does not prevent the flow of water to the interior.
These materials also often have the additional important function of creating a barrier between the ground and the surfaces to protect the waterproofing layer, increasing its safety and durability over the years.
What does “waterproofing” mean?
Waterproofing means the ability of the system to be totally resistant to water in the ground, which exerts hydrostatic pressure. Such as groundwater, for example.
TeMa Building Solutions always guarantees a range of products and has all the solutions you need.
For the damp-proofing function we have T-Kone, the HDPE studded membrane for foundations and underground structures, and its accessories including washers and nails for installation (T-Plug + Nails), whereas for the waterproofing function we have T-Bentostop F and T-Bentostop F XL: waterproofing bentonite geocomposites that self-attach to concrete for foundations in that material.
Cloudbursts are sudden heavy rainstorms that, unfortunately, are becoming increasingly frequent. Short but intense, they mainly occur in the summer season, even if it is a myth to debunk because they are also a common occurrence in other seasons. The enormous amount of water concentrated over a short period of time, makes these phenomena potentially dangerous and a possible threat to the foundations of buildings.
How to Protect Foundations
This is why designers are increasingly focusing on the best protection for buildings and properties in contact with the ground. The sudden changes in the amount of water run-off and the gradual increase in the groundwater level make earth-retaining works fragile when these factors have not been considered.
TeMa Building Solutions
Adequate systemic design is essential in the case of hydrostatic thrust, just as it becomes fundamental to monitor various factors, including: descending water resulting from precipitation, water and/or damp rising due to capillary upward flow, groundwater and condensation which, due to the difference in temperature between the ground and interior spaces, forms on the walls of rooms close to the ground. It’s also important to bear in mind the likelihood that several phenomena may exist at the same time. TeMa Building Solutions is our division highly specialised in protection and waterproofing systems. Our research team has developed products ideal for counteracting the hazards caused by these seasonal weather events. It provides solutions for the protection of foundations and water drainage to reduce the volume of water close to underground structures, both vertical and horizontal, in contact with the ground and where groundwater or dispersed water is present.
Our geocomposites have been designed to perform the dual function of filtering and draining water, dispersing energy from the hydrostatic load. They include T-Net Drain 5, which channels the flow of water to the water collection system around a building thanks to the rhomboidal-shaped mesh geo-grid coupled with two non-woven geotextiles.
According to recent research in the building market in Italy, damage due to water seepage and damp in earth-retaining structures is the cause of more than 50% of disputes in the building sector. Our designers are well aware of this problem and therefore rely on TeMa, thus preventing such complications.
To learn more and discover the entire range of geocomposites designed by TeMa, go to our website.