"How to Make Your Home Energy Efficient: Tips and Guidelines"

Home Made Simple
Includes features on home decorating, gardening, and organizing, with ideas to simplify, organize, beautify and inspire life.

Builders often refer to the exterior of a home as the 'envelope' or the 'shell.' Sealing the envelope or shell against air infiltration (air leaking into the house from outside) and air exfiltration (air leaking from inside the house to the outside) helps reduce your energy expenditure for space heating and cooling. Besides, no one likes to live in a drafty house."