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Finalizing insulation in converted conditioned attic Because the attic sits above an insulated but unconditioned garage, I have ~R-60 of blown in cellulose on the attic floor garage ceiling Since the cavities have 9 5 inches of rafter space, I had originally planned to add R-15 Rockwool batts to the cavities and, potentially, cover all of it with R-6 Rockwool Comfortboard 80
Attic Upgrades and Ventilation - GreenBuildingAdvisor The 1000-sq -ft attic has two small gable vents, the AC furnace system is 25 years old, the roof is a 6-7 12 pitch covered in clay tiles, and on hot days the attic temperature can reach 130°F 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
Should I vent my unvented garage attic? - GreenBuildingAdvisor The house attic is insulated with R-42 open cell foam on the roof deck, and there is currently no insulation in the garage attic The wall between the house attic and the garage attic is drywalled and insulated with R-30 open cell foam on the house side The garage has fire sprinklers, so the garage ceiling will need to be drywalled
All About Attic Venting - GreenBuildingAdvisor One of the interesting things about heat buildup in attics and asphalt shingle warranties tied to the amount of attic venting needed to keep the attic cool, is that I recorded temperatures immediately under shingles between 180 - 190 degrees on south facing slopes and just above ambient temperature under wood shingles
All About Attics - GreenBuildingAdvisor Most six-year-olds can draw a house The typical child’s depiction of a house shows a rectangular building with a door and a few windows, topped by a gable roof This type of house is fairly common in most areas of the U S If the house was built 100 or more years ago, it usually had a cellar or basement underneath the first floor and an attic above the top floor
Are Powered Attic Ventilators Ever a Good Idea? There is no vapor or reflective barrier on the attic ceiling, just wood and nails During the day our house stays relatively cool with all the windows closed But come around 7pm until about 11pm it’s hotter inside than out (all windows open now), and from a thermal camera it looks like the attic is dumping stored heat down into the house
How to Insulate and Air-Seal an Attic Hatch Even though attic hatches can be huge air leaks and sources of radiant heat loss, they are rarely fixed An attic hatch is usually located in a hallway or closet where the homeowners see it daily Yet… I mean, once the homeowners fire up a blower door and whip out their infrared camera, the problems with attic hatches are pretty obvious
Fans in the Attic: Do They Help or Do They Hurt? Attic Fan (roof mounted type) and ceiling shutters ? When I was about 16 my father installed an Attic power vent fan We had a small house about 1000sf The house had a removable cover to get into the attic If the entrance cover was left open, and the fan came on You could fell the rush of air being pulled into the attic Present day
How to Insulate and Air-Seal Pull-Down Attic Stairs Pull-down attic stairs are super-sized attic hatches that just beg homeowners to store more stuff in their attic Besides the air-leakage and insulation problems stemming from having a particularly large hole in your ceiling, pull-down stairs creates a potential storage headache For homeowners, a storage problem usually means “not enough space ” For energy auditors, a storage problem
Is Venting an Unconditioned Attic Necessary? A reflective metal roof keeps an attic much cooler than passive ventilation Photo courtesy of Cameron Taylor For the second problem, cooling costs, attic ventilation supposedly reduces cooling costs in the house Yes, ventilation can keep the attic cooler, but that doesn’t translate to lower air-conditioning costs