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Waterproofing es la acción de colocar un sistema aislante de protección, empleado para evitar la filtración y/o penetración de líquidos u otros fluidos hacia el interior o exterior de una estructura.

The waterproofing of a building or structure should always be done as part of a system using one or several products according to the degree of protection desired and the use of the structure or building itself.

The objective of protecting structures and buildings against humidity is for health reasons, construction aesthetics, avoiding rework and extending their useful life.

All buildings have areas that must be waterproofed. Not only for the safety of the structure, but for the health of its occupants.

The first thing builders need to identify is the areas that need waterproofing and choose the best type, but which is the best?

Contractors should be required to use the best system depending on the needs, for example:

Interior and/or exterior waterproofing

Structures or buildings can be waterproofed both inside and outside or in both cases according to the construction conditions and desired degree of protection.

Commonly, a waterproofing material is one that prevents water from passing through it, acting as a protective umbrella over the surface on which it has been applied. There are, therefore, many materials that can be waterproofing, although there are always some that offer better results than others. For this reason, we want to distinguish the different types of waterproofing that exist and which are the best for protecting roofs, terraces and roofs.

Types of waterproofing for roofs and terraces

As we have advanced, there are different materials that are used for waterproofing surfaces, the following being the most common types of waterproofing:

• Acrylic Waterproofing: This is a type of liquid waterproofing similar to an exterior paint that is formulated based on synthetic resins and glass fibers. Waterproofing formulated based on acrylic resins can also be included within this category.
• Asphalt waterproofing: Are waterproofing products that are composed of emulsified water, polyester, and glass fibers. This type of fibers give greater resistance to the system and, therefore, improve its durability.
• Cementitious waterproofing: This type of waterproofing is highly weather resistant, making it ideal for both temperate and cold climates. In addition, they offer great durability and prevent the appearance of saltpeter.
• Elastic waterproofing: They are made from acrylic co-polymers and provide great elasticity, so that they resist contraction and expansion movements well.
• Liquid membranes: They consist of applying a layer of primer and then other layers of polymers. They are very flexible systems with good durability properties.
• Polyurethane membranes: They are ideal for outdoor surfaces, although they are very sensitive to humidity. They are characterized above all by the high flexibility they offer.