Building science experts have identified reducing air leakage as a key component in improving building energy efficiency and occupant comfort.

As energy codes and above-code energy efficiency certification programs evolve and progress, the natural question is “where do we go from here?” The simple and easy answer is

Drive by virtually any new home development, and you will notice the homes have a building fabric wrap or OSB sheathing (coated with a green weather barrier product) in conjunction with taped seams. These products, depending on the specific brand, may serve multiple functions for the home.

There are three different strategies commonly used when providing mechanical ventilation to a home: supply-only, exhaust-only, and balanced. Each method has its benefits and drawbacks, but each has its place.

In part 1 of this blog series, we covered how the design of Heating, ventilation, and air conditioning (HVAC) systems can affect poor airflow.

A local jurisdiction requested assistance with their goals to increase energy code compliance within their building department and to improve the energy efficiency…