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Should I vent my unvented garage attic? - GreenBuildingAdvisor 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 The home is located in Northern California in climate zone 3-C (Marine), so mild weather year-round
Attic Upgrades and Ventilation - GreenBuildingAdvisor 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 He asks if, while the attic is empty, it is a good time to perform other upgrades He is particularly interested in whether mechanical ventilation should be added
Can too much soffit and ridge ventilation actually hurt a house if the . . . In a poorly sealed house roof venting can increase the stack effect - meaning more air entering the house at the base, and exiting into the attic That's why the recommendation is to have more vents at the soffits than at the peak, which slightly pressurizes the attic, reducing exfiltration
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 […]
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
Blown Insulation for Attics: Fiberglass vs. Cellulose Blown-in fiberglass consists of milled glass fibers like those used to make fiber-glass batts When it is blown onto an attic floor, it is referred to as loose-fill fiberglass This material has a lower R-value per inch (2 to 2 7) than any other common insulation product, so it’s best applied in an attic that has enough room at the eaves to accommodate insulation installed 16 in to 26 in deep
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