Nowadays, plenty of construction materials are fabricated, either the traditional or the new ones. One of these materials are also the materials of so called “dry construction”. And they are the primary concern of this diploma thesis. It deals with the material which is not so known in the construction practice: tetra pak boards and panels. The thesis is divided in two parts. The theoretical part presents the analysis of this issue in the field of the dry construction materials in general; the characteristics and the use of the most common materials of this group are described (such as plaster board, fibre gypsum board, wood cement board, wood, etc.) and the above-mentioned tetra pak boards, too. The practical part presents the results of the experimental work which were focused on the evaluation of the behaviour of chosen materials from the tetra pak carton. More precisely, the results of thermic load of flame and radiating thermal source of the fire board TETRA K and the panel TETRA K. The panel TETRA K is the combination of a standard tetra pak board and PUR foam. The results show that the fire board TETRA K which was evaluated by the ignitability test according to STN EN ISO 11925-2, met one of the classifying criteria for including in the fire reaction group D, C, and B in accordance with STN EN 13501-1+A1/Z1. From the point of view the evaluation criteria concerning the weight diminution during the radiating thermal source test, the stated board lost less than a half of its weight during the time 600 s. The panel TETRA K was loaded with the radiating thermal source; the examined criteria was the change of the temperature in the particular layers of the panel during the time 1.800 s. The results of the test show the positive behaviour of the above-mentioned panel; so, it can be stated that the maximum temperature which were taken from the panel’s layers decreased from the centre towards the outside layers. An example is the significant difference of the temperatures which were measured at the exposed side of the panel and under the first layer which was made up of the tetra pak board TETRA K; the difference was 494,7 °C in average. On the other side of the panel the temperature corresponded with the temperature of its environment.