House Efficiency, Air Leakage & Blower Door Test
- Outlook Homes
- Dec 25, 2025
- 2 min read
Customers sometimes have questions about their new home’s efficiency or perhaps notice small gaps around doors and windows. To address these concerns, every Outlook Homes home goes through multiple quality checkpoints. During construction, your home receives thorough air sealing and insulation inspections. Insulation is evaluated as part of the entire building envelope, not just in isolated areas. Finally, as part of the final inspection process, we perform a blower door test to confirm that your home meets today’s energy efficiency standards and is performing the way it should.
Blower Door Test
A blower door test is a simple but powerful way to measure how “tight” your home is against air leaks. During the test, a special fan is temporarily mounted in an exterior door. The fan pulls air out of the house, lowering the indoor pressure. This makes any outside air sneak in through cracks, gaps, or unfinished areas. Sensitive gauges then measure how much air is moving through the fan, which shows us the overall leakage rate of your home. So, while you may notice what seem like small ‘air leaks’, your home has passed the blower door test. This means any minor leaks you may find are within acceptable limits, and your home meets or exceeds all building code standards for energy efficiency.
Why does this matter?
Energy Efficiency – These inspections and tests confirm your home meets or exceeds all code standards making it very energy efficient.
Comfort – Again, since your home passed all inspections and tests it is considered a very tight home which helps prevent drafts and keeps temperatures more consistent from room to room.
Durability – Reducing uncontrolled airflow helps minimize moisture problems that can lead to damage over time.
Code Compliance – Pennsylvania building codes require new homes to achieve an air leakage rate of less than 3 CFM (cubic feet per minute) per square foot, and the blower door test verifies that your home meets this standard.
At Outlook Homes, we use the results of the blower door test to confirm that your home is built to today’s standards and to identify any areas where sealing improvements may be needed. Such improvements are made prior to your occupancy of the home, and the home is retested until we meet or exceed the 3 CFM standard. It’s one more step in our commitment to delivering you a high-quality, efficient, and comfortable new home.
