Dec 31, 2024 · In a poorly sealed house roof venting can increase the stack effect - meaning more air entering the house at the base, and exiting into the attic. That's why the recommendation is to have …

Jul 25, 2024 · Exhaust air from bathroom fans should never be ducted into an attic but rather to a point outside the building enclosure.

Sep 12, 2025 · Learn the requirements for residential attics in different climate zones, the impact on energy efficiency, and the importance of proper insulation installation.

Apr 18, 2025 · A poorly air-sealed attic hatch A large portion of this ceiling is leaking air during a blower door test. Air leaking into or out of an attic space can contribute to comfort issues and increased …

Feb 12, 2021 · Running unprotected ductwork through an attic can court problems. Particularly in hot-humid climates, moisture can collect on the outside of ducts in summer. Encapsulating ducts in …

Jun 29, 2023 · Venting an attic in cooling season The warm-climate, summertime problems of shingle life and cooling costs also show little improvement from attic ventilation. Shingle life can be …

Dec 6, 2013 · A rundown of reasons why venting an attic makes sense and how it can prevent issues that negatively impact a house's performance.

Jul 22, 2021 · 6. Keep your attic cooler with a reflective roof or radiant barrier Another way to reduce heat flow into your ducts from a hot, unconditioned attic is to keep the attic cooler. The best way to …

Sep 30, 2024 · BGG had an energy audit done, which informed his plan to remove the existing fiberglass batts, air-seal the attic, install a ducted heat pump system, then blow in cellulose …

Feb 20, 2025 · The attic is warm, and some of that heat gets carried away through the metal duct. Since we got our Zehnder energy recovery ventilator going, we’ve hardly used the bath fans, so it’s mostly …