Choosing an effective solution for masonry dehumidification is a crucial decision for the preservation and improvement of building structures, particularly those subject to rising damp. Two widely used approaches in this area are macroporous plaster and DWALL dehumidifyingcoating. This article reviews the main features, advantages and limitations of each system, highlighting how DWALL is positioned as an advanced and innovative solution.

Macroporous Plasters: Principles of Operation and Limitations

Macroporous plasters are a traditional solution in the field of dehumidification. Made through a mix of special binders and aggregates, these plasters are applied by mixing with water and are laid directly on the masonry. Their working principle is based on the presence of macroscopic pores that promote the evaporation of moisture, slowing the deterioration of the underlying masonry.

However, the use of 'water in the application phase introduces some major critical issues:

- Interaction with dissolved salts: During application, water comes into contact with dissolved salts in the masonry, activating their migration to the surface. This phenomenon accelerates the crystallization of salts and causes premature degradation of the plaster and surface finish.

- Limited service life: The combined action of moisture and salts leads to a frequent need for maintenance, compromising long-term economic sustainability.

- Complex processing: Application requires careful preparation and extended drying time, which can slow down the progress of work.

DWALL: Innovation in Dry Dehumidification

DWALL dehumidifying coating represents a revolutionary technology designed to overcome the limitations of traditional plasters. It is a dry-applicable coating system that completely eliminates the need for mixing with water and significantly reduces its criticality.

The main advantages of DWALL include:

- Absence of interaction with salts: Being a dry system, DWALL avoids the activation of dissolved salts in the masonry, thus preventing degradation of the surface and ensuring greater durability.

- Immediate efficiency: Dry-laying dramatically reduces installation time, providing an immediately effective and reliable result.

- Strength and durability: Thanks to its innovative composition, DWALL resists the mechanical and chemical action of salts and moisture, maintaining its properties for significantly longer periods than traditional plasters.

- Environmental sustainability: Reduced water use and reduced maintenance requirements contribute to a lower overall environmental impact, in line with sustainable development principles.

The comparison of macroporous plasters and the DWALL dehumidifying coating clearly highlights the technological evolution in the field of dehumidification. While traditional plasters are still a popular solution, their limitations, mainly related to interaction with water and dissolved salts, reduce their long-term effectiveness.

DWALL, with its dry-laying and superior strength, presents itself as a modern, high-performance choice suitable for both rehabilitation and new construction. This product meets the requirements of efficiency, durability and sustainability demanded by today's market, confirming it as a reference solution in the field of dehumidifying technologies.