**2. Multiperformance, Durable and Sustainable Coatings**

This e-book, entitled "Advanced Coatings for Buildings", contains a collection of five Special Issues consisting of fifteen articles which cover fundamental studies and applications of multiperformance coatings designed to improve durability and to achieve novel, sustainable and health functions in buildings. COVID-19 redefined the concept of sustainability, making crucial the inclusion of human health [1]. Therefore, solutions proposed by engineers, architects and scientists should be addressed, giving buildings innovative functions such as: air-purifying and fire-resistant properties, long-lasting aesthetical appearance, water resistance, anti-fouling and anti-microbial surfaces. The current threat of interacting with microorganisms also generates new challenges that must be acknowledged to improve human quality of life, for example, by developing biological coatings for buildings which can act as a thermal, moisture, noise, and electromagnetic barrier. On the urban scale, they might reduce the heat island effect and sewage system load, improve runoff water and air quality, and reconstruct natural landscapes including wildlife. In summary, this e-book on coatings compiles the following Special Issues demonstrating the bright future of advanced coatings for buildings: "Advanced Protective Coatings for

Buildings" [2,3], "Nanocoatings with Air-Purifying Properties" [4–6], "Antifouling Coatings" [7–10], "Ultra-Low Biofouling Materials and Coatings" [11] and "Biological Coatings for Buildings" [12–16]. Going into detail, the Special Issues include the following topics:


Based on these interesting topics, we encourage you to read through this e-book and use the valuable information provided therein to help us move forward in the important area of multiperformance coatings with potential application in buildings for improving durability and to achieve innovative, sustainable and health functions. This approach certainly is a breakthrough to solve the current human threats for sustainable development during buildings' service life.

**Funding:** This research received no external funding.

**Conflicts of Interest:** The authors declare no conflict of interest.
