Eco-solution

Breathable EWI

Breathable EWI improves insulation while allowing moisture to escape, preventing damp, protecting stone structures, and delivering healthier, more efficient homes.

Breathable external wall insulation is designed to improve thermal performance without trapping moisture within the building fabric. Unlike sealed systems, vapour-permeable EWI allows walls to naturally release moisture while significantly reducing heat loss—keeping homes warmer, drier, and more energy efficient.

Using Baumit breathable EWI systems delivers improved comfort, lower heating demand, reduced risk of damp, and long-term protection of the structure. This makes it ideal for traditional buildings, coastal homes, and solid-wall properties where breathability isn’t optional—it’s essential.

Baumit offers three high-performance breathable EWI solutions: StarSystem Nature, StarSystem Mineral, and openSystem.