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 insulation. The carpenter installed knee walls at 35 inches. This attic houses my geothermal air handler, whole house dehumidifier, and […] Jun 9, 2025 · After early framing help from a capenter, I’m taking on an attic renovation. 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. Air leakage is reduced by encapsulating the attic. Attic kneewalls often cause big comfort problems in homes. 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. While locating ducts in an attic reduces installation costs for the builder, it increases energy costs for the homeowner. . 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. He is particularly interested in whether mechanical ventilation should be added. Jan 9, 2019 · Loose-fill fiberglass attic insulation was shown to lose up to half its R-value in a study from the early 1990s. Some attics are smaller than the footprint of the house, like the attic above the second floor ceiling of a Cape. Thermal bridging is reduced by spraying over the rafters. The results are worth it, though, in happy clients, lower energy bills, and personal satisfaction that you’re doing great work. This attic houses my geothermal air handler, whole house dehumidifier, and […] Nov 24, 2022 · Attic insulated with spray foam at the roofline. Sep 12, 2014 · The classic attic is located above a flat ceiling and has the same footprint as the house below. Some attics have a triangular cross section, like the attics behind the kneewalls on the second floor of a Cape. He asks if, while the attic is empty, it is a good time to perform other upgrades. The home is located in Northern California in climate zone 3-C (Marine), so mild weather year-round. [Photo credit: Energy Vanguard] When you get into the world of building science, it’s inevitable that you’ll hear about the Oak Ridge study proving that fiberglass insulation loses about half its R-value. Sep 12, 2014 · The classic attic is located above a flat ceiling and has the same footprint as the house below. Getting them right is fairly straightforward but takes time and attention to detail. But the effect is small, with only about six percent reduction in May 28, 2021 · The problem is attic ductwork The main reason that anyone talks about conditioned attics is that some builders want to install ducts in the attic. But the effect is small, with only about six percent reduction in 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. By encapsulating the attic, the air in that space will be close to indoor conditions of temperature and humidity, but there won’t be any cold surfaces for water vapor to condense on. Jun 9, 2025 · After early framing help from a capenter, I’m taking on an attic renovation. Jan 19, 2025 · Hi all: I recently converted the formerly vented attic above my attached garage to an unvented and conditioned attic. Oct 26, 2012 · Whole house fans are better than attic ventilators in terms of performance, energy consumption, and energy efficiency. Installing ducts in an attic is a bad idea, but many builders don’t know that. Aug 21, 2013 · There you have it. Shingle life can be shortened by higher temperatures, and asphalt shingles do stay cooler with a ventilated attic. Because the existing 2×6″ collar ties were only halfway […] Nov 24, 2022 · Attic insulated with spray foam at the roofline. Because the existing 2×6″ collar ties were only halfway […] Jan 19, 2025 · Hi all: I recently converted the formerly vented attic above my attached garage to an unvented and conditioned attic.

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