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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
Is Venting an Unconditioned Attic Necessary? Venting an attic in cooling season The warm-climate, summertime problems of shingle life and cooling costs also show little improvement from attic ventilation Shingle life can be shortened by higher temperatures, and asphalt shingles do stay cooler with a ventilated attic But the effect is small, with only about six percent reduction in
Attic insulation on the floor using foam board I’m insulating my attic floor in climate zone 4A Attic is vented with soffit and ridge I have 2×6 floor joists I was going to lay r-23 rockwool batts in between the joists and then do criss cross 2×4 studs on top of the joists and then lay r-15 rockwool batts in those (achieving the required r38) and then a plywood floor on top