TABIHAUS® SYSTEM FOR DAMP TREATMENT

Humidity treatment is a matter that must be dealt with correctly in the architectural approach, whether in new construction or in rehabilitation.

Removing moisture from the interior walls of homes influences both in terms of health and structure, both included in the DB of the CTE September 2020 review.

Regarding health, it is especially harmful to children, the elderly, and people with respiratory problems such as asthma, allergies, sinusitis, etc., due to the proliferation of mold and mites.

From the structural point of view, the profiles of the structures and the windows may be affected, and what is more serious, the fact that the humidity will penetrate the walls.

On the other hand, from an energy point of view, humidity inside the home increases heating consumption.

Types of humidity that appear in homes

There are basically three types of humidity:

• Filtration: which is the entry of humidity due to poor insulation on the façade, or due to water ingress on roofs, under roofs, eaves, window sealing….
• Capillarity: which is the rise of humidity through walls and floors, due to the porosity of the materials used in construction.
• Condensation: Which is the result of contact of humid air with a surface that is colder than said air.

Regarding condensation, when the temperature on the outside of the wall is much lower than the temperature inside the house, and it is added to a high level of humidity inside it, it is inevitable that condensation appears.

We must remember that we bring humidity daily to the interior of our home. Simply by breathing, we constantly exhale humid air.

Also daily activities such as showering, washing up, drying clothes inside the house and cooking water, provide large amounts of water. There are also other factors that can aggravate the problem, such as the geographical area (coastal areas or habitual fog), the orientation of the house, and the increase in environmental humidity on rainy days.

What does the TABIHAUS® SYSTEM contribute to efficient construction?

There is a common misconception, which is to look for an almost hermetic seal in the construction. Indeed, the houses must be hermetic to the entrance-exit of air and humidity, but they must allow the exit of the water vapor from the interior.

TABIHAUS® panels are completely waterproof, but permeable to water vapour.

Seen in another way, we could say that with the patented TABIHAUS® system, we created a construction as if it were a GORE-TEX® membrane, both in the thermal envelope and in the interior partitions.

In other words, we let the building breathe, at the same time that we provide magnificent insulation with a completely waterproof material. The TABIHAUS® panel perfectly meets the construction objectives of the Passivhaus® standards.

Regarding moisture by capillarity, due to the nature of the plate and the XPS insulation of the TABIHAUS® panel, we always avoid the transmission of water due to rising humidity.

Regarding humidity due to condensation, due to its very high thermal insulation, we achieve very low thermal transmittances in both the exterior and interior panels, avoiding humidity due to the thermal difference between the two walls.

And all this added to its antibacterial properties, which prevent the proliferation of mold and mites, creating a healthier home, the objective of the Passivhaus® building standards.