
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 …
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 …
R38 vs R49/60 attic insulation - GreenBuildingAdvisor
Mar 17, 2025 · I’m trying to get a sense whether its worth adding more insulation to my attic. Climate zone 5A. Currently has R38 insulation (R11 batt + R27 blown-in fiberglass). The attic […]
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 …
Will positive pressure work to vent an attic (i.e., blowing air in ...
Aug 12, 2012 · My father is interested in removing heat from his attic to try to keep the upstairs of his house somewhat cooler. I have advised him that generally speaking, attic fans are a bad …
Why is There Frost in the Attic? - GreenBuildingAdvisor
Nov 24, 2022 · Attic insulated with spray foam at the roofline. Thermal bridging is reduced by spraying over the rafters. Air leakage is reduced by encapsulating the attic. By encapsulating …
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.
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 …
6 Ways to Improve Ducts in an Unconditioned Attic
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 …
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.