Why Your Upstairs Is Hot Even With Good AC

Why Your Upstairs Is Hot Even With Good AC

From Crawl Space Ninja Show by Michael Church, Founder of Crawl Space Ninja

June 4, 2026 · 12 min · Season 2026 · Episode 10

About this episode

Michael Church explains the reasons why upstairs areas can be hot even with functioning AC and offers solutions for each issue.

Send us Fan Mail Is your upstairs always hot even when your AC is running? You're not imagining it — and your AC probably isn't broken. In this video, Crawl Space Ninja founder Michael Church explains the five real reasons your second floor stays hot all summer long, and exactly what to do about each one. We cover attic heat and radiant heat transfer, air sealing and the stack effect, leaky ductwork running through hot attics, poor attic ventilation, and HVAC airflow imbalance in two-story h...

People in this episode

Host: Michael Church

Topics covered

  • home cooling
  • HVAC
  • attic ventilation
  • air sealing
  • ductwork

Keywords

  • upstairs hot
  • AC issues
  • attic heat
  • radiant heat transfer
  • air sealing
  • ductwork
  • attic ventilation

More episodes of Crawl Space Ninja Show

Explore listener stats, chart rankings, contacts and more on the Crawl Space Ninja Show podcast page.