NOVELTY - An integrated modular system comprises panel(s) associated with a circulation mechanism for thermal carrier fluid, and attachment mechanisms for attaching the panel to a bearing structure and/or to other adjacent panels. The attachment mechanisms selectively cooperate with a clamping element of first type or second type to join together at least two adjacent panels.    USE - The integrated modular system is used to make covering surfaces for roofs and outside walls in structures suitable to exploit solar energy. It can be applied in coverings and walls of every type, e.g. industrial hangars; public and private buildings such as homes, offices, schools and churches; public meeting places and places of entertainment.    ADVANTAGE - The inventive system can be integrated simply and quickly, both with additional transparent panel which increases efficiency in producing hot water, and with an additional element for the production of electric energy using photovoltaic cells. The system allows easy implementation to obtain greater efficiency in capturing the solar energy or higher energy forms without the disadvantage of removing the basic covering structure of the panels which form the covering. It provides integrated modular covering which not only allows to exploit solar energy but also offers complete flexibility with regard to the level of efficiency and the type of energy produced.    DETAILED DESCRIPTION - An integrated modular system consists of panel(s) (15) associated with a mechanism for the circulation of thermal carrier fluid, and attachment mechanisms (18) for attaching the panel to a bearing structure and/or to other adjacent panels. The attachment mechanisms selectively cooperate with a clamping element of first type or with a clamping element (19a) of second type to join together at least two of the adjacent panels. The clamping element of second type comprises lateral extensions (26) on which supplementary panel(s) (25) is able to rest.    DESCRIPTION OF DRAWING(S) - The figure shows a section of a segment of integrated modular covering formed by capturing plates comprising the supplementary plates.    Panels (15)    Pipes (17)    Attachment mechanisms (18)    Clamping elements (19a, 19b)    Insulating layer (24)    Supplementary panels (25)    Lateral extensions (26)