Based on theoretical knowledge of modern trends in wooden structures and calculus of the specific heat requirement, the purpose of this thesis is to calculate, how the value of the specific heat requirement will change in relation to different wall and ceiling compositions used in buildings with similar charasteristics. The first hypothesis says, that the calculation with a wall structure, which has the smallest value of thermal transmittance (U-value), will grant a result of lesser amount of specific heat requirement. Simultaneously, we predict that the structures with preferable factor of shape and larger dimensions of transparent surfaces will grant positive energetic balance. After calculation of the specific heat requirements of individual buildings and with application of a statistical method, we have validated that the effect of wall and ceiling composition change used on several different structures does have stastictically significant influence on change of the specific heat requirement.