Building Science Basics course enables builders to hone their knowledge of building science and energy efficiency and lower call back rates. Halifax, NS. February 27, 2014 – The renovation and new construction industries have a new resource to help them build more energy efficient housing as a result of Blue House Energy’s launch of its on-line course, Building Science Basics. The comprehensive, self-directed online program is designed for tradespeople, contractors, and builders who want to improve their knowledge of building science and energy efficiency. Understanding the ‘why’ behind energy efficiency measures improves how the work is done, leading to a lower call back rate from homeowners, thereby increasing the efficiency of the work done.