For Electric & Natural Gas Customers
A building envelope encloses the working or living space and protects the indoor environment by creating a space where you can control the indoor climate.
The building envelope consists of the roof, exterior walls and floor of a building. These parts of a building work together to separate the interior of the building from the outdoor environment. A building envelope that is properly designed, constructed and insulated can greatly reduce heating costs in the cold seasons and cut cooling costs in hot seasons.
The links provided below go to web pages with videos mainly produced by third parties to educate a public audience.