Your house is a system with two main components that work together. The building envelope is made up of the roof, windows and doors, walls, insulation, and the foundation. The mechanical systems include space heating and cooling, hot water heating, and ventilation.
When the whole system is working well, you can achieve optimal home energy performance. This is important for your comfort, your wallet, and the environment! Scroll down to learn some home energy hacks to help keep you comfortable and save energy and money.