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  1. Should I vent my unvented garage attic? - GreenBuildingAdvisor

    Nov 19, 2024 · I’m building a new single-story single-family house with an unvented attic and am looking for input on how to address my attached unvented garage attic. The home is located in …

  2. 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 …

  3. Can too much soffit and ridge ventilation actually hurt a house if …

    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 …

  4. 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.

  5. Finalizing insulation in converted conditioned attic

    Jan 19, 2025 · Hi all: I recently converted the formerly vented attic above my attached garage to an unvented and conditioned attic. This attic houses my geothermal air handler, whole house …

  6. Venting Bathroom Exhaust Air - GreenBuildingAdvisor

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

  7. Blown-in fiberglass consists of milled glass fibers like those used to make fiber-glass batts. When it is blown onto an attic floor, it is referred to as loose-fill fiberglass. This material has a lower R …

  8. 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.

  9. How to Air-Seal an Attic Access - GreenBuildingAdvisor

    Jul 14, 2022 · How to get a good air-seal at attic pull-down stairs, scuttle holes, and kneewall doors to keep conditioned air in the house.

  10. Attic remodel / sistering rafters - GreenBuildingAdvisor

    Jun 9, 2025 · After early framing help from a capenter, I’m taking on an attic renovation. The carpenter installed knee walls at 35 inches. Because the existing 2×6″ collar ties were only …