The pressure and impulse affecting a building after a detonation is quite difficult to present and explain. Since glass debris can effectually scatter in a large area, both inside and outside, it is important to try to design the window to minimise this. Tests were done in a shock tube, and by varying the pressure and impulse, the effects could be analysed in the model room. The tested components were chosen to simulate as much as possible of the actual circumstances. Initially the results showed that the surrounding components were weaker than the glass itself, so in future the construction attachments need to be well dimensioned. The tests have also shown an agreement to earlier damage-model theories for the load of 50 kg at a distance of 45 m. In future planning it is suggested to avoid location of windows in walls facing the most probable threat, as the side-on placement reduces the risks of serious damage. Future work could be done in the field of interpretation and evaluation of the considerable amount of data collected.