On ACH and Energy Efficiency

June 14, 2017

Antares Homes is proud to announce that our homes built under the 2015 Energy Code closing in the 1st quarter of 2017 are achieving an average air changes per hour (‘ACH’) score of 2.625.  ACH refers to the measurement of how much unconditioned outside air can penetrate into a house within an hour.  The higher the ACH, the more unconditioned outside air is entering the house.

Read more to find out why we are so proud!

The state of Texas mandated that all homes submitted for building permits on or after September 1, 2016, would be required to be built under the 2015 Energy Code.  Although there were several other required changes, the largest challenge many homebuilders faced with the implementation of the 2015 Energy Code was achieving a mandated 3.0 ACH threshold.

Over a year and a half ago, as Antares was preparing for the changes coming from the 2015 Energy Code changes, we were faced with the challenge of lowering our ACH from an average of 3.4 to the 3.0 threshold.  Although .4 ACH appears like a small amount of improvement to make, Antares has a long-standing reputation for our energy efficient homes so we really had to dig into the details to see where we could improve our ACH.

We knew we needed collaborative expert advice from several of our Trade Partners and our Construction Managers to understand what was needed and how we would implement the necessary changes.  After several meetings at both our corporate offices and our energy rating company’s offices, we determined a plan of action and moved the training to the field where we met multiple times with our Trade Partners, Engineers, and Construction Managers to first test, and then implement the final changes to our construction processes.

Even before the September 1, 2016 implementation date, the office and field trainings resulted in several significant improvements for Antares:

  • Working as a Team, our Trade Partners and Construction Managers recognize their impact and responsibilities as it pertains to helping Antares Homes achieve the 3.0 ACH threshold,
  • Our Construction Managers have a Poly-seal and Blower Door checklist that are completed for each home prior to inspections. The Poly-seal inspection is the last chance to inspect the home and confirm every opportunity for significant air leakage through the exterior walls has been identified and fixed prior to installation of sheetrock.  The Blower Door test is an air balance test done when the home is complete that calculates the final ACH rating.

Antares Homes is extremely pleased with the efforts of our #AntaresFamily and the positive results they have been achieving.  In the end, these efforts have helped us construct an even more energy efficient home that will result in added savings and improved comfort for our Customers.

Source: Dirt2Doorbell
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