One of the most important concepts in designing and building a green, sustainable home is the envelope of the house which includes the roof, the walls and the basement. It is critically important that the house's envelope assures that the home is air-tight so as to optimally control air and moisture. In this short video, Elizabeth DiSalvo, Trillium's founder, discusses the type of materials used to construct an envelope that results in a house which allows for a more comfortable, healthy environment.
