Thompson Thrift

How ARCXIS helped a leading midwest developer in a new BTR
(Build-To-Rent)project meet code with a custom air sealing program

In 2009, the International Energy Conservation Code (IECC), significantly increased
building requirements by mandating third-party inspections, blower door air leakage tests,
and duct leakage tests for newly constructed homes. In 2021, the code was modified, and
air leakage standards became even more stringent. These new code requirements required
significant updates to construction practices and complicated code compliance for
the builder.
In 2023, Thompson Thrift, a national multi-family development company, began a new
multi-unit single-family rental home division. Although most of their projects typically fell
under the commercial code, this one was subject to the residential code, requiring
compliance with the updated air leakage standards. To meet the 5 ACH50 requirement,
Thompson Thrift partnered with Arcxis to develop custom air sealing programs, particularly
for homes with firewall systems.
Arcxis customized its air sealing service based on the details of the project and the
performance goals and code requirements of this particular builder. This project required a
customized two-trip sealing package that focused on targeting areas of common leakage
including top and bottom plates, firewalls, many attic-to-wall interfaces, and drywall and
HVAC penetrations.
“...Arcxis significantly contributed to improving the energy
efficiency of our homes in Indiana,” said Steve Shaver, VP of
Thompson Thrift, Indiana.

“We partnered with Arcxis and utilized their multi-step approach that helped every home
meet the new requirements and pass the air leakage tests. Their proactive approach to
meeting evolving building codes highlighted the importance of adaptive strategies in the
construction industry. By addressing specific challenges in different home types and
building practices, Arcxis significantly contributed to improving the energy efficiency of our
homes in Indiana,” said Steve Shaver, VP of Thompson Thrift, Indiana.
This collaboration exemplifies how third-party testing, innovation, and partnerships
between builders and energy efficiency experts can help meet regulatory requirements and
drive sustainable, high-performance home construction. 

“We’re always pushing the envelope with advanced air sealing
methods to achieve even lower air leakage rates,” said Travis Dunn,
Director at Arcxis, North. “This ongoing innovation ensures that we will
be ready to support builders in the face of evolving codes and help
them maintain high standards for energy efficiency in their new homes.”