
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 …
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.
Attic baffles question - GreenBuildingAdvisor
Mar 24, 2025 · In areas where there are hips or valleys, ventilation baffles are often not installed where the roof framing prevents ventilation from occurring. This also sometimes happens with gable roofs …
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.
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 …
Closed spray foam insulation in attic - GreenBuildingAdvisor
Apr 16, 2025 · We are renovating our attic to convert it to livable space. The house itself is a Tudor with no overhangs or soffits, built in the 1920s. The contractor has installed knee walls that admittedly …
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 …
Controlling Humidity in an Attic with Spray Foam Insulation
Jul 29, 2021 · Using an exhaust fan in an encapsulated attic Since that time, we’ve been experimenting with ways to keep the attic humidity low. One of the methods we’ve tried is using a small fan to …
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 […]
Are Powered Attic Ventilators Ever a Good Idea?
Sep 9, 2021 · If you don’t have air conditioning or natural-draft combustion appliances, a powered attic ventilator can keep your attic cooler. I had someone once tell me that the rubber handles on a …