Thinking of building a new home or putting on an addition? Make sure you’re sticking to the Georgia building code and getting a blower door test performed. Georgia building code can be complex and hard to understand, but at Energy Consulting Services, we are experts who work hard to make sure your home meets DET and BET requirements set forth by the state of Georgia.

Georgia building code requires a blower door test for all new homes as well as renovations where more than 50% of square footage was added. The guidelines put in place 2021 dictate that the building envelope be extremely tight and not to exceed more than 5 air changes per hour at 50 Pascals.

The code also requires a duct blaster test to ensure tightness for each duct work system. This includes all new duct work and any renovation that impacts over 50% of the ductwork system. Post-construction testing allows leakage to outside of up to 6 CFM25 per 100 square feet of the conditioned floor served by that duct system. This only applies to duct systems that have any portion of duct work outside of the building envelope. Therefore, if the attic or crawlspace where the ductwork is located is encapsulated in spray foam, this test will not be required.

BET Testing – Blower Door Test

Building envelope testing (BET) is done through blower door testing. A blower door is attached to a doorway of the home or addition, with the house slightly depressurized. The blower door pushes air into the home and reads how much escapes through leaks. The more air needed to get the home to the correct pressurization indicates more leaks. We use the best equipment in the industry and have the most highly trained staff you could ask for.

DET Testing – Duct Blaster Test

Duct envelope tightness (DET) testing uses a duct blaster to test for leaks in the ducts and insulation. The duct blaster, which is similar to the blower door mechanism, secures to a return vent, then all other supply and return vents get sealed off. The blower then pressurizes the duct system and detects any leaks in the duct and insulation system. Again, we use the best technology available. Our well-trained professionals make sure that your home is up to par so you can feel confident that Georgia’s standards are met and your standards are exceeded.

Put your home or building in good hands and contact us or call today: 404.931.9593

ductblaster for testing ductwork systems
The ductblaster tests the leakiness of the ductwork system
DET & BET Compliance Testing
The blower door tests the leakiness of the home or building envelope

Duct Blaster & Blower Door Testing Cost

Energy Consulting Services is ready to help you meet these code requirements and to save you money and time. Our pricing structure is below and will increase outside of 20 miles from downtown Atlanta to account for drive time:

    • 1 Blower Door – $250
    • 1 Ductblaster – $250
    • Blower door & one duct blaster test – $300
    • Blower door & two duct blaster tests – $350
    • Each additional duct blaster required – $50