9. Airtight

To increase air tightness we added Pro Clima Tescon Vana tape on the ESB panel corners from the inside. These corners are called critical zones where draft can easily come in. To hide this tape we first tried if it was possible to pain over it but this proved to be difficult since the tape is quite thick (0,4mm). We later deceided to add small strips of ESB panels that where cut in a 45° angle on both sides to hide these tape strips. To make these strips add up in the corners was very difficult but not impossible.