Balanced Mechanical Ventilation

Balanced Mechanical Ventilation – HRV vs ERV – a discussion from Building science experts have identified reducing air leakage as a key component in improving building energy efficiency and occupant comfort. Building codes, above-code efficiency programs, and building...

The Devil is in the Details

Home Performance and Energy Code – The Devil is in the Details 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 to increase insulation and...

The Forgotten Air Barrier – Garage Partition Walls

The Forgotten Air Barrirer 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...

Ventilation for a Healthy and Comfortable Home

VENTILATION FOR A HEALTHY AND COMFORTABLE HOME A mantra in the high-performance building community goes something like this: “Build it tight and vent it right”.  The idea is that to ensure occupant comfort and health, as well as building health and durability, it is...

Poor HVAC Airflow – Part 2

 Poor HVAC Airflow – Part 2  In part 1 [LB1] of this blog series, we covered how the design of Heating, ventilation, and air conditioning (HVAC) systems can affect poor airflow. This discussion will focus on the devices located in the air stream of a residential HVAC...