Both of these constructions are CE approved.
Gypsum board construction EI90, E90
Plywood gypsum board construction EI60, E60
Bathroom wall painted with Firewall Biopaint 1. Painted 2008, picture taken 2016. Our paint protects also from mold.
Biopaint Firewall 1 paint on metal. Painted 2011, picture taken 2016.Our paint protects also from rust.