STAVSI is designed for dry walling especially for rough construction. In the EU is still lacking a standard defining the building systems, designed for dry walling, and the original Czech standard is already invalid. For such cases the material must pass rigorous tests to prove its competence, in particular in terms of mechanical, fire, acoustic, radiological, and thermal parameters. The material of construction system STAVSI passed all the tests carried out with excellent results. The following files refer to the tests performed, but unfortunately all in Czech only.