Some of the main causes of water leaks in buildings are:
- design defects (incorrect specifications);
- defective pipes and / or temperature variations;
Design defects can concern the materials, which sometimes turn out to be unsuitable, not very resistant, unable to cope with weather events. They are defined as latent defects, because they become evident only after the construction of the building, even after years. They are, for example, inadequate foundations that cause subsidence, weak concrete or poorly positioned reinforcement, faulty cisterns that cause infiltration.
Water leaks from broken supply pipes and deteriorated sewer lines are among the most common causes of damage to buildings. Pipes can burst due to excessive temperature changes, high water pressure, corrosion, tree roots and foundation shifts.
Even the clogging of a pipe can cause its breaking, and consequently also significant leaks. Hair, grease, food, toilet paper, and more can cause drainage clogging. If it causes an increase in the internal pressure of the pipe, the liquid must find another way out.
Water leaks can be classified into several types, but the main ones are:
- obvious water leaks;
- hidden water leaks.
The former can arise, for example, from the rupture of an exposed pipe or from the dripping of a tap. Water leaks of this type leave little room for doubt since they are revealed by traces of wetness on the wall or floor.
Hidden water leaks are much more insidious because they are difficult to detect. Generally, these types of leaks are due to breakages in underground or recessed water systems, and in any case not directly detectable from the outside.
To identify these types of problems, it is often necessary to unearth the pipe by digging or breaking the concrete part.
A hidden water leak can persist for a long time before being discovered, with a strong economic, safety and health impact on the property.