Water infiltration

Water infiltration is one the main problem in the construction industry. They are generally caused by the deterioration of a surface, which consequently loses its waterproofing ability, or by a failure in the waterproofing capacity of the surface. The consequences of water infiltration may be only "aesthetic", such as the separation and detachment of the painting, the formation of spots and streaks of moisture, mold and efflorescence, or, in severe cases, it can cause real structural problems, accelerating the degenerative process of building materials.

The design and choice of the best solution for waterproofing a surface, therefore, is a key aspect to ensure the maximum possible duration of the buildings, reducing to a minimum the maintenance required.

A first and important distinction between the different types of waterproofing is the intervention in presence of positive thrust and the ones with negative pressure, or counter-thrust.

  • Waterproofing with positive thrust: this category includes all interventions in which it is possible to operate on the surface directly in contact with the infiltration. This type of intervention is aimed at preventing the absorption of water by the whole structure. Practical examples of this category are: waterproofing of terraces and balconies, roofs, foundation walls before backfilling, liquid containment tanks, tubs, swimming pools.

  • Waterproofing with negative pressure: this category includes interventions in which you cannot operate on the surface directly in contact with the infiltration, and is therefore necessary to intervene on the surface on which infiltration occurs, blocking the leakage of water or moisture. Examples of this category are: waterproofing of basements and cellars and waterproofing of walls with the ground.

You should always consider that a positive thrust waterproofing allows to preserve the entire structure by absorption of water and its consequences, while the waterproofing with negative pressure can block the escape of water or moisture, but do not prevent the structure absorbing water.