29 Sep Underground parking dampness: how to solve it
Underground car parks are very useful spaces, but they are also exposed to damp problems that appear almost without us realizing it. As they are enclosed areas, with little ventilation and in direct contact with the ground, damp finds the perfect environment to settle in. And once it does, it quickly causes uncomfortable and, in some cases, dangerous consequences.
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Why does damp appear in an underground parking lot?
The first cause lies in the garage’s direct contact with the ground. Groundwater, whether from rain, a high water table or lateral leaks, can seep through small cracks in walls and floors. Porous materials, such as concrete or bricks, absorb this moisture and transmit it inside.
Another very common reason is condensation. Without adequate ventilation, air loaded with vapor accumulates in the space. If cold air from outside enters or cars release heat and moisture, the contrast in temperatures ends up forming droplets on ceilings, walls, or even on the vehicles.
The causes
Damp in a garage is not just a simple aesthetic problem. Over time it can cause:
- Wear and tear on walls, floors, and ceilings that compromises the structure.
- Stains, mold, fungi, and efflorescence on walls and finishes.
- Risk of corrosion in metal elements and electrical problems.
- Slippery or dangerous floors due to water accumulation.
All of this not only deteriorates the space, it can also affect the safety of those who use it daily.
Solution to dampness in underground car parks
Not all damp is the same, and that’s why the solution depends on the cause. Before taking action, it’s important to identify whether it’s leaks, capillary rise, or condensation. Once the origin is known, there are different methods to put an end to it.
Treatments against leaks and capillary damp
In these cases, it is usually necessary to reinforce the waterproofing of walls and floors. Special mortars, membranes, or sheets can be applied to block the passage of water. Another technique is resin injection into the walls, which creates an internal barrier to prevent damp from rising or penetrating. It is also key to properly seal joints and cracks, and in some garages install drainage systems that divert groundwater away from the structure.
Solutions against condensation
When the problem is vapor accumulation, ventilation becomes the best ally. Installing extractors or air renewal systems helps balance humidity levels. It can also be reinforced with breathable or anti-damp paints, insulating cold pipes to avoid dripping, and taking small usage measures, such as not leaving cars running longer than necessary.
In many cases, the definitive solution combines several of these techniques to achieve a lasting result.
We eliminate damp from underground car parks
At Humilogic we deal with these kinds of problems on a daily basis. We know that each garage has its own particularities, which is why we carry out a prior diagnosis that allows us to find the most suitable solution.
Our team applies professional treatments of waterproofing, injection, or ventilation depending on what each space requires. The goal is to eliminate damp at its root, prevent it from reappearing, and keep the parking area in safe and healthy condition for years. Contact us.