Uploaded February 2026 | Updated September 2026, 3 weeks ago
Build Science™ 401 Episode 7 explores how a highly integrated floor and foundation system comes together in an off-site–built home. Matt Risinger and Steve Baczek walk through the use of precast Superior Walls, engineered open-web floor trusses, ZIP-R sheathing, drain-and-vent cavities, and layered air-sealing strategies to manage moisture, airflow, and heat in a challenging, cold, high-moisture site. They explain why certain materials, like closed-cell spray foam and a smart vapor retarder, are treated as secondary safeguards rather than primary control layers, while still adding durability and resilience over the long term. The discussion also highlights fire and sound control within floor assemblies, using mineral wool, like ROCKWOOL's Safe’n’Sound batts, to slow fire spread and improve acoustics in open-web truss systems. Matt and Steve reinforce that good building science is about thoughtful system integration, redundancy where it matters, and maintaining continuity at every transition to build safer, longer-lasting homes.
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Subscribe and follow my Podcast on Apple or Spotify!
Apple: apple.co/32AOwgU
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Sign up for our twice-weekly newsletter:
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To sponsor a video or advertise with us visit:
buildproductions.com
Want to learn more about building? thebuildshow.com
The Build Show on Instagram: instagram.com/thebuildshow
Huge thanks to our Show sponsors Builders FirstSource, Huber, Pella & Viewrail for helping to make these videos possible! These are all trusted companies that Matt has worked with for years and trusts their products in the homes he builds. We would highly encourage you to check out their websites for more info.
bldr.com
Huberwood.com
pella.com
Viewrail.com
Build Science™ 401 Episode 7 explores how a highly integrated floor and foundation system comes together in an off-site–built home. Matt Risinger and Steve Baczek walk through the use of precast Superior Walls, engineered open-web floor trusses, ZIP-R sheathing, drain-and-vent cavities, and layered air-sealing strategies to manage moisture, airflow, and heat in a challenging, cold, high-moisture site. They explain why certain materials, like closed-cell spray foam and a smart vapor retarder, are treated as secondary safeguards rather than primary control layers, while still adding durability and resilience over the long term. The discussion also highlights fire and sound control within floor assemblies, using mineral wool, like ROCKWOOL's Safe’n’Sound batts, to slow fire spread and improve acoustics in open-web truss systems. Matt and Steve reinforce that good building science is about thoughtful system integration, redundancy where it matters, and maintaining continuity at every transition to build safer, longer-lasting homes.
Get your BUILD SHOW Gear Here -
build-gearstore.com
Subscribe and follow my Podcast on Apple or Spotify!
Apple: apple.co/32AOwgU
Spotify: spoti.fi/3FXNg4X
Sign up for our twice-weekly newsletter:
buildshownetwork.com/newsletter
To sponsor a video or advertise with us visit:
buildproductions.com
Want to learn more about building? thebuildshow.com
The Build Show on Instagram: instagram.com/thebuildshow
Huge thanks to our Show sponsors Builders FirstSource, Huber, Pella & Viewrail for helping to make these videos possible! These are all trusted companies that Matt has worked with for years and trusts their products in the homes he builds. We would highly encourage you to check out their websites for more info.
bldr.com
Huberwood.com
pella.com
Viewrail.com
