About 50 results
Open links in new tab
  1. Understanding the Energy Code: The 2021 IECC Attic Insulation ...

    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.

  2. All About Attics - GreenBuildingAdvisor

    Sep 12, 2014 · The classic attic is located above a flat ceiling and has the same footprint as the house below. Some attics are smaller than the footprint of the house, like the attic above the second floor …

  3. Attic Upgrades and Ventilation - GreenBuildingAdvisor

    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 …

  4. Attic ventilation: Is it ok to have WAY more intake than exhaust ...

    Oct 28, 2024 · The total ventilation would exceed the attic floor area divided by 150, so does that mean it should be ok to have “unbalanced” ventilation? I am in southern Maryland in climate zone 4, btw. I …

  5. Is Venting an Unconditioned Attic Necessary?

    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 …

  6. All About Attic Venting - GreenBuildingAdvisor

    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.

  7. Air Leaks From Your Home To Your Attic Need To Be Sealed

    Jul 3, 2014 · It’s important to keep attic air out of the house and house air out of the attic. That's why the home performance industry and every above-code building program make it a top priority to fully …

  8. Air flow between garage attic and house attic - GreenBuildingAdvisor

    Apr 21, 2025 · The garage wall and ceiling have fire-rated drywall. There is an attic space above the garage and an attic space above the house. Currently, these two attic spaces are separated by …

  9. Solving Comfort Problems Caused by Attic Kneewalls

    Aug 21, 2013 · In the world of building science, we call them attic kneewalls — walls that separate conditioned space from an unconditioned attic. They’re also the cause of many comfort problems, …

  10. Problems with Attic Trusses - GreenBuildingAdvisor

    Feb 14, 2024 · Attic trusses, sometimes called room trusses, are factory-built systems that simplify a roof build-out and are engineered to meet the structural requirements of local codes and conditions.