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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
Air Leaks From Your Home To Your Attic Need To Be Sealed It’s important to keep attic air out of the house and house air out of the attic That's why the home performance industry and every above-code building program make it a top priority to fully separate attics from the rest of the building When the attic isn’t fully air sealed from the living space and the combustion appliance zone, three undesirable scenarios can occur:
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
Installing an ERV in an Unvented Attic - GreenBuildingAdvisor 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
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
Will positive pressure work to vent an attic (i. e. , blowing air in . . . My father is interested in removing heat from his attic to try to keep the upstairs of his house somewhat cooler I have advised him that generally speaking, attic fans are a bad idea, which he has come to terms with However, with that understanding that creating negative pressure in the attic can cause all kinds of problems (sucking out air from the conditioned space, possible back-drafting
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 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
Creating a Conditioned Attic - GreenBuildingAdvisor 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
The Best Way to Keep Your Attic Cooler is to Change Your Roof Color The third graph shows attic temperatures from the middle of the attic for several different types of roofing as well as a sealed attic In this case, the most reflective roofing material (ivory IR selective metal tile) is 23 4 F° cooler than attic covered with dark shingles