Attic Upgrades and Ventilation - GreenBuildingAdvisor
2024年9月30日 · 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 ...
Attic Moisture - GreenBuildingAdvisor
2024年12月27日 · Spraying the entire attic floor is overkill, you really only need to do the wall top plates. You could spray out around the eaves to get the exterior wall top plates, then strips of foam to cover any interior top plates. You'd basically be spray foaming a drawing of your floor plan onto the attic floor this way.
Are Powered Attic Ventilators Ever a Good Idea?
2021年9月9日 · 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.
Creating a Conditioned Attic - GreenBuildingAdvisor
2010年12月31日 · Attic ducts almost always have thinner insulation than ceilings, in spite of the fact that the delta-T (that is, the temperature difference) between the air in the ducts and the air in the attic is even greater than the delta-T between the inside of the home and the exterior.
All About Attics - GreenBuildingAdvisor
2014年9月12日 · 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.
How to Air-Seal an Attic Access - GreenBuildingAdvisor
2022年7月14日 · The wooden folding attic stairs (ladder) fits inside the box when lifted into the ceiling/attic. The box is sealed by using two velcro straps at either end, connecting the box to the attic floor. Keeps the weatherstripping tight to the attic floor, and easy to remove and replace the lightweight box hatch.
All About Attic Venting - GreenBuildingAdvisor
2013年12月6日 · A. No, although potential moisture problems in imperfectly vented attics can be disguised by the presence of leaky attic ducts. (Leaky attic ducts can help dry out attic air by heating the attic in winter and dehumidifying the attic in summer, assuming that the house has central air conditioning.
Should I vent my unvented garage attic? - GreenBuildingAdvisor
2024年11月19日 · 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.
Installing an ERV in an Unvented Attic - GreenBuildingAdvisor
2020年6月26日 · The attic stale air pickup should be near the ridge because usually the highest humidity is there, this is the air you want to move out of your attic. This hot humid air that is pulled out will now be supplied with conditioned air from the house thus indirectly conditioning your attic.
Does Spray Foam in the Attic Make It a High-Performance Home?
2021年5月27日 · They had been getting this lower level of attic insulation approved with a simpler method called the total UA alternative. In other words, they could get a lower insulation level for the attic to comply by using better-than-code windows, which builders were doing already anyway. Georgia’s R-20 spray foam amendment