AIRTIGHTNESS It has gradually become more and more difficult to meet the EPB requirements without paying attention to airtightness. That’s entirely logical, as uncontrolled ventilation losses are the reason for large amounts of heat loss, draughts, poor acoustics and moisture problems. Good airtightness and a high-quality building

VAPOUR TIGHT SEALING Is it better to make homes vapour-permeable or vapourtight? The basic principle is that a building and its insulation must be able to dry out, and stay dry. This discussion is continuously ongoing, as the thicker the insulation you install, the larger the problems