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All About Attics - GreenBuildingAdvisor 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 ceiling of a Cape Some attics have a triangular cross section, like the attics behind the kneewalls on the second floor of a Cape
Problems with Attic Trusses - GreenBuildingAdvisor Attic trusses, sometimes called room trusses, are factory-built systems that simplify a roof build-out and are engineered to meet the structural requirements of local codes and conditions
Finalizing insulation in converted conditioned attic 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 dehumidifier, and […]
Why is There Frost in the Attic? - GreenBuildingAdvisor 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 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
Solving Comfort Problems Caused by Attic Kneewalls There you have it Attic kneewalls often cause big comfort problems in homes Getting them right is fairly straightforward but takes time and attention to detail The results are worth it, though, in happy clients, lower energy bills, and personal satisfaction that you’re doing great work
Does Fiberglass Attic Insulation Really Lose R-Value? Loose-fill fiberglass attic insulation was shown to lose up to half its R-value in a study from the early 1990s [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
Are Powered Attic Ventilators Ever a Good Idea? 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 wheelchair he stored in the attic stopped melting after he installed one But for keeping the house cool, a powered attic ventilator isn’t a good idea
Attic baffles question - GreenBuildingAdvisor 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 that have a drop-cord truss Framing for the eave overhang will block ventilation and the baffles are typically not installed The gaps in the ventilation baffles that allow air to bypass the baffle will