Sustainable air tightness in single-family houses

Air tightness in buildings is an important parameter when striving for energy efficient and sustainable homes. Today the building industry relies on tape and adhesives to ensure air tightness in overlaps and joints. In our field surveys we have at RISE seen cases where the tape has failed and started to glide with an increased air leakage as a result.

In this project we want to investigate the small but long-term loads the tape joints are exposed to and perform an independent testing of available material combinations – both foil and tape in lab-scale and full-sized wall scale. Our aim is to develop a risk evaluation tool connected to a digital education adapted for the builders of single-family houses.