Application of frequency response function method to solve a problem on thermal stability of fencing

The problem of the so-called layer of abrupt fluctuations, the index of thermal inertia and heat absorption coefficient of the material is considered in the article. Using the theory of transfer functions formulae for the layer of abrupt fluctuations are specified. It is shown that the approach to the problem is more simple and, therefore, more understandable and "transparent". In the previous references indicated ratios are obtained by direct analysis of the solution and the heat equation with appropriate boundary conditions. Because of the known disadvantages of this method, as noted in the references, some researchers have suggested various formulae which are inconsistent with each other. Used in this article method of frequency transfer functions is recommended for the development of the theory of thermal stability of fencing and buildings in general, which is relevant at present.