What is tightening the building envelope and what does it do for me?
Buildings with controlled air leakage have lower heating bills. Air leakage represents the single largest source of heat loss (or gain) through the envelopes of nearly all types of buildings. If you can control it or reduce the leakage, you keep the heated (or air conditioned) air inside the building reducing your power usage. After tightening the building envelope, your facility will healthier, safer, more comfortable and more durable.
