Close and lock all windows and doors, except for the one to be used by the test. Interior doors must be left open. Open the hatch on any crawl space if it’s considered part of the conditioned space; otherwise, leave it closed. Turn off any gas appliances. This includes water heaters and commercial stove pilot lights.
Call GDS at 603-656-0336 or 800-437-4495 or email rees@gdsassociates.com. Massachusetts*, New Hampshire** and Maine require blower door and duct leakage tests to be performed on new homes before an occupancy permit is provided. GDS Associates has performed thousands of these tests over the past ten years.

Blower door test scores. bAsqtBArKH | Posted in Energy Efficiency and Durability on May 5, 2011 12:58pm. I recently completed a prototype home that I am doing a blog on: affordablegreenhome.blogspot, and wanted to share my blower door test score: .48 ACH50. My questions is: Can others share their blower door test results and strategies they may

The structure needs to be 1,500 square feet or smaller and must achieve a leakage rate of no more than 0.30 CFM50/Ft² of surface area. The home above that failed the standard ACH blower door test achieved 0.15 CFM50/Ft² of surface area. If tested to the 2021 code allowing the CFM50/Ft² of surface area, this home would have passed.
Blower door testing is an essential procedure for assessing the airtightness of a building, ensuring energy efficiency and indoor comfort. By simulating a controlled pressure difference between the inside and outside of a structure, blower door testing measures the amount of air leakage. This process helps identify areas where air is escaping The Home Energy Rating System (HERS) Program is designed to help identify and fix issues, recognize areas for improvement, and compare the energy efficiency of California’s homes. The HERS Program, also called the Field Verification and Diagnostic Testing Program, is a way to ensure that the various features of a home meet the California Call us at 703-368-1479 to schedule an inspection of your home! I thought you might be interested to know that the night following the insulation work you and your crew did…. Read more “Energy Savings for Us”. I wanted to take this opportunity to thank you for providing me with the name of Fifth Fuel as a….
Featured Products. Minneapolis Blower Doors DUCT-KIT-002 Series B 110V system (no DG-1000) (10 - 1,500 CFM) $1,932.00. Minneapolis Blower Doors DUCT-KIT-001 Series B 110V system with DG-1000 Pressure and Flow Gauge (10 - 1,500 CFM) $3,422.00. Minneapolis Blower Doors BD3-KIT-001 Model 3 110V system with aluminum frame and DG-1000 Pressure and
During a blower door test we use pressure to determine how much air flow enters the building during a given time. The 2009 IECC, 2012 IECC, 2018 IECC, and all energy star homes are required to have a blower door test. It informs us if the home will performed as it is modeled to perform. A home that is too leaky does not allow any control on the ogcPTKn.
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