The highest recommendation made during my energy audit was to add insulation in the attic. Since the second floor has a vaulted ceiling i could only add insulation in the area over the living room, dining room, and kitchen – the front of the house. When i moved in it had a layer of R11 insulation and looked like this.
The ceiling joists are 24 inches apart and are 2x6s. I found a few bales of R11 insulation and a few years ago rolled them out perpendicular to the joists.
First, i rolled up the second layer of R11 insulation. I figured that the gaps caused by the 2×6 being taller than the first course of R11 would end up being a channel for the warmed air to escape. Then i took the R38 insulation and just laid it out on top of the insulation you see in the above photo.
You can see that there is a vast increase in the amount of insulation. I took care to make sure that seams were pretty tight. I rolled out one of the bales of R11 on top of the R38 – perpendicular to the joists again. But the stuff i have is faced and I worry about moisture retention within the insulation.
There are no eave vents or gable vents. I’m thinking of adding a gable mounted solar powered attic fan. In the spring I’ll work on adding vents to the eaves.