|
- 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
- R38 vs R49 60 attic insulation - GreenBuildingAdvisor
I’m trying to get a sense whether its worth adding more insulation to my attic Climate zone 5A Currently has R38 insulation (R11 batt + R27 blown-in fiberglass) The attic […]
- 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
- Why is There Frost in the Attic? - GreenBuildingAdvisor
The solution, part 2: venting the attic with outdoor air Another way to reduce the likelihood of getting frost in the attic is to vent the attic with outdoor air Cold air is dry air, so bringing outdoor air in reduces the humidity That in turn reduces the dew point temperature, making condensation and frost in the attic less likely
- Blown-in fiberglass on top of batt insulation in attic . . .
The photo below shows a thermal image of our ceiling with only R11 batt insulation installed Blown-in insulation will be added on top I’m trying to determine if using blown-in insulation is going to adequately fix all the thermal voids The attic has been air sealed
- Understanding the Energy Code: The 2021 IECC Attic Insulation . . .
Learn the requirements for residential attics in different climate zones, the impact on energy efficiency, and the importance of proper insulation installation
- Help me decide if closed cell in my attic is really worth it over open . . .
The conclusion appears to be that if you want to use open-cell foam, you need to condition the attic to limit humidity, and install a warm-side vapour retarder to reduce moisture in the foam Remember to check whether your attic requires a thermal or ignition barrier on the exposed foam
|
|
|