What is EN ISO 4772:2021?

EN ISO 4772:2021 is a technical standard that provides guidelines and requirements for the determination of the resistance to water penetration of non-ventilated building facades. It is essential in ensuring the durability, safety, and quality of these structures, particularly in areas with high exposure to water or extreme weather conditions.

Importance of EN ISO 4772:2021

Water penetration can cause significant damage to building facades, resulting in structural problems, moisture-related issues, and potential health hazards. EN ISO 4772:2021 addresses this concern by offering comprehensive techniques and criteria for assessing the resistance of building facades to water penetration. Compliance with this standard helps architects, engineers, and construction professionals design and construct more resilient and watertight buildings.

Key Requirements of EN ISO 4772:2021

The standard specifies various parameters and procedures for evaluation, including the water flow rate, test specimens, test equipment, and testing principles. It outlines the necessary steps for conducting laboratory tests and site inspection to determine the susceptibility of building facades to water penetration. This includes the assessment of joints, interfaces, openings, materials, and installation quality.

Benefits of Compliance

Adhering to EN ISO 4772:2021 brings several advantages. Firstly, it ensures that buildings can withstand water penetration, preventing associated damages like rot, mold growth, and material degradation. By following the standard's recommendations, architects and engineers also enhance the longevity and performance of their designs. Additionally, compliance aids in regulatory approvals, as many countries have adopted similar standards, making it easier to demonstrate adherence to local building codes and regulations.