Abstract: A solar energy collector comprised of a body for use with other such bodies in forming a roof. The body is cast or pressed from a suitable roofing material, such as concrete, plastic, magnesium oxy-chloride, clay and the like with integral color or color coating as desired. The body has projections and recesses at the sides, and ends for allowing the adjacent bodies forming a roof of a building to overlap each other to cover the top of the building. Each body has upper ridges or strips randomly placed and randomly spaced apart to increase the heat capacity thereof and to provide an aesthetic appearance for the body and thereby the roof when the body forms a part of the roof. One or more pipe sections are embedded in the body in the lower surface thereof for allowing water or other liquid to pass into heat exchange relationship with the body to absorb the heat energy therefrom when the body is exposed to solar energy. Several embodiments of the body are disclosed.