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 …

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

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 …

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 …

Dec 23, 2021 · The three best methods and the corresponding materials for insulating roofs and attics with input from Kohta Ueno.

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 […]

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 …

Jan 27, 2020 · If hurricanes are a risk, an unvented attic has two potential advantages over a vented roof: 1) the closed-cell spray foam provides some structural benefits by gluing the roof …

Jun 29, 2023 · The condensation-related problems associated with unconditioned attics have less to do with ventilation than air-sealing and insulation.

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.