Buildings can be designed in harmony with the natural environment, and new techniques of "active" solar design exist to collect and use solar energy for space heating and cooling. Preservation and reuse of existing buildings and neighborhoods are other ways to conserve energy. (Author/MLF)

Some of the problems of renovating school buildings and in particular the modernization of mechanical services in existing facilities are discussed. According to school management publications, approximately 42 per cent of our elementary and 59 per cent of our secondary schools are 15 years old or older. School plants, which were built 12 to 15…